Mounting/Accessing SD-Card on BBB

Nils Hölscher nilhoel1 at gmail.com
Fri Aug 16 09:40:28 UTC 2019


Hi,

Thanks for the info.
I already ordered a replacement.

Thanks,
Nils

On Fri, 16 Aug 2019 at 11:38, Christian Mauderer <list at c-mauderer.de> wrote:

> Hello Nils,
>
> if the U-Boot doesn't start from eMMC any more it won't be easy.
> Theoretically it is possible to boot via serial. See for example
>
>
> http://linuxkernel51.blogspot.com/2015/08/booting-beagle-bone-black-over-uart.html
>
> With that you could load an U-Boot (via X-Modem) that could start a
> system from USB (image from Beagle home page maybe could work if it can
> boot from USB) that could re-write the eMMC. Most likely it would need a
> few hours to a day to figure out the details. So you should definitively
> order a replacement as a backup solution.
>
> Best regards
>
> Christian
>
> On 16/08/2019 11:13, Nils Hölscher wrote:
> > Hi Christin,
> >
> > Thanks for the hint.
> > But how can I alter the U- Boot on eMMC?
> > Problem is I have a Linux version with an U-Boot that disables emmc on
> > the emmc...
> > And I guess I cant flash emmc without SD.
> >
> > Best,
> > Nils
> >
> > On Fri, 16 Aug 2019 at 11:03, Christian Mauderer <list at c-mauderer.de
> > <mailto:list at c-mauderer.de>> wrote:
> >
> >     On 16/08/2019 10:55, Nils Hölscher wrote:
> >     > Hi,
> >     >
> >     > It seems the problem was hardware related.
> >     > My SD-Card connector just died.
> >     > I hope I can get a new BBB oin a timely manner.
> >     >
> >     > Best,
> >     > Nils
> >
> >     Hello Nils,
> >
> >     thanks for the information. That's annoying. Good luck finding a
> >     replacement.
> >
> >     For a quick workaround: I haven't tried that yet but if your on-board
> >     eMMC is still intact, you might can use that U-Boot to boot from USB.
> >
> >     Best regards
> >
> >     Christian
> >
> >     >
> >     > On Fri, 16 Aug 2019 at 10:48, Christian Mauderer
> >     <list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>> wrote:
> >     >
> >     >     Hello Nils,
> >     >
> >     >     thanks for the file list. I can't reproduce your problem with
> it.
> >     >
> >     >     On 16/08/2019 10:01, Nils Hölscher wrote:
> >     >     > Hi,
> >     >     >
> >     >     > Short update.
> >     >     >
> >     >     > It seems the device only hangs while I am connected with the
> >     debugger.
> >     >
> >     >     Is that true for the original file system tree? You are
> >     debugging via
> >     >     Ethernet, right? In that case I would lean more toward a
> >     problem with
> >     >     the debugger support than the file system. Do you have enough
> file
> >     >     descriptors configured?
> >     >
> >     >     Best regards
> >     >
> >     >     Christian
> >     >
> >     >     > looks like a Heisenberg bug.
> >     >     >
> >     >     > Best,
> >     >     > Nils
> >     >     >
> >     >     > On Fri, 16 Aug 2019 at 09:50, Nils Hölscher
> >     <nilhoel1 at gmail.com <mailto:nilhoel1 at gmail.com>
> >     >     <mailto:nilhoel1 at gmail.com <mailto:nilhoel1 at gmail.com>>
> >     >     > <mailto:nilhoel1 at gmail.com <mailto:nilhoel1 at gmail.com>
> >     <mailto:nilhoel1 at gmail.com <mailto:nilhoel1 at gmail.com>>>> wrote:
> >     >     >
> >     >     >
> >     >     >     On Thu, 15 Aug 2019 at 19:51, Christian Mauderer
> >     >     <list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>> wrote:
> >     >     >
> >     >     >         Hello Nils,
> >     >     >
> >     >     >         maybe another bug in our FAT file system...
> >     >     >
> >     >     >         Please do three things:
> >     >     >
> >     >     >         1. Create an image of your current card (with dd or
> >     a similar
> >     >     >         tool). FAT
> >     >     >         bugs are sometimes hard to reproduce but it's really
> >     >     urgent that
> >     >     >         we fix
> >     >     >         them. So maybe I'll ask for that image later.
> >     >     >
> >     >     >     I did that.
> >     >     >     Let me know if you need the image.
> >     >     >
> >     >     >         2. Create a complete list of the files on your card
> (for
> >     >     example the
> >     >     >         Linux `tree -h` command), post it here and tell me
> >     what you
> >     >     >         tried to open.
> >     >     >
> >     >     >      .
> >     >     >     ├── [ 50K]  am335x-boneblack.dtb
> >     >     >     ├── [ 49K]  am335x-boneblack+pruss.dtb
> >     >     >     ├── [ 883]  AM335X-PRU-UIO-00A0.dtbo
> >     >     >     ├── [ 649]  AM335X-PRU-UIO-BSD-00A0.dtbo
> >     >     >     ├── [162K]  Linux-with-UIO.dtb
> >     >     >     ├── [  44]  loob.bin
> >     >     >     ├── [108K]  MLO
> >     >     >     ├── [2.1M]  pru.exe.img
> >     >     >     ├── [  12]  test.bin
> >     >     >     ├── [471K]  u-boot.img
> >     >     >     ├── [ 390]  uEnvLinuxfdt.txt
> >     >     >     └── [ 560]  uEnv.txt
> >     >     >
> >     >     >          3. Try another name / folder for the file you
> wanted to
> >     >     open.\
> >     >     >
> >     >     >     I moved the file in another folder and renamed it.
> >     >     >     It now works but I got en error, I am currently
> >     investigating if
> >     >     >     this is on the pru driver side or not.
> >     >     >     The tree while doing this was:
> >     >     >     .
> >     >     >     ├── [ 50K]  am335x-boneblack.dtb
> >     >     >     ├── [ 49K]  am335x-boneblack+pruss.dtb
> >     >     >     ├── [ 883]  AM335X-PRU-UIO-00A0.dtbo
> >     >     >     ├── [ 649]  AM335X-PRU-UIO-BSD-00A0.dtbo
> >     >     >     ├── [162K]  Linux-with-UIO.dtb
> >     >     >     ├── [  44]  loob.bin
> >     >     >     ├── [108K]  MLO
> >     >     >     ├── [2.1M]  pru.exe.img
> >     >     >     ├── [2.0K]  test
> >     >     >     │   └── [  12]  test2.bin
> >     >     >     ├── [  12]  test2.bin
> >     >     >     ├── [471K]  u-boot.img
> >     >     >     ├── [ 390]  uEnvLinuxfdt.txt
> >     >     >     └── [ 560]  uEnv.txt
> >     >     >
> >     >     >
> >     >     >     Thanks,
> >     >     >     Nils
> >     >     >
> >     >     >         Best regards
> >     >     >
> >     >     >         Christian
> >     >     >
> >     >     >         On 15/08/2019 19:32, Nils Hölscher wrote:
> >     >     >         > Hi Christian,
> >     >     >         >
> >     >     >         > The commands ls and cat work.
> >     >     >         > I just tested them, this seems kinda awkward.
> >     >     >         >
> >     >     >         > Best,
> >     >     >         > Nils
> >     >     >         >
> >     >     >         > On Thu, 15 Aug 2019 at 19:27, Christian Mauderer
> >     >     >         <list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         > <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>> wrote:
> >     >     >         >
> >     >     >         >     Hello Nils,
> >     >     >         >
> >     >     >         >     does some other access to the file system
> >     work? Like
> >     >     a ls
> >     >     >         on the console
> >     >     >         >     or creating a file. Can you do a `cat` on some
> >     text file
> >     >     >         on the file
> >     >     >         >     system? If not: Does it work for a file in the
> >     root file
> >     >     >         system (should
> >     >     >         >     be a IMFS)?
> >     >     >         >
> >     >     >         >     Best regards
> >     >     >         >
> >     >     >         >     Christian
> >     >     >         >
> >     >     >         >     On 15/08/2019 15:54, Nils Hölscher wrote:
> >     >     >         >     > Hi,
> >     >     >         >     >
> >     >     >         >     > I when my app wants to open a file on the SD
> >     card
> >     >     >         dev=mmcsd-0-0 rtems
> >     >     >         >     > freezes.
> >     >     >         >     > Exact call is:
> >     >     >         >     > fd = open(file, O_RDONLY);
> >     >     >         >     > With file being the pru binary I want to
> upload.
> >     >     >         >     >
> >     >     >         >     > Thanks,
> >     >     >         >     > Nils
> >     >     >         >     >
> >     >     >         >     > On Tue, 13 Aug 2019 at 17:56, Christian
> Mauderer
> >     >     >         >     > <christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>
> >     >     >         >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>>
> >     >     >         >     >
> >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>
> >     >     >         >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>>>> wrote:
> >     >     >         >     >
> >     >     >         >     >     Hello Nils,
> >     >     >         >     >
> >     >     >         >     >     a third possibility: You could start a
> >     FTP server
> >     >     >         and push the
> >     >     >         >     file
> >     >     >         >     >     via network.
> >     >     >         >     >
> >     >     >         >     >     Best regards
> >     >     >         >     >
> >     >     >         >     >     Christian
> >     >     >         >     >
> >     >     >         >     >     Am Dienstag, 13. August 2019 schrieb Nils
> >     >     Hölscher:
> >     >     >         >     >     > Hi,
> >     >     >         >     >     >
> >     >     >         >     >     >
> >     >     >         >     >     > Thanks for the input I will try the SD
> >     card
> >     >     first.
> >     >     >         >     >     > That way I won't have to alter the
> >     code when I
> >     >     >         want to run other
> >     >     >         >     >     stuff on the pru.
> >     >     >         >     >     >
> >     >     >         >     >     >
> >     >     >         >     >     > Best,
> >     >     >         >     >     > Nils
> >     >     >         >     >     >
> >     >     >         >     >     >
> >     >     >         >     >     > On Tue, 13 Aug 2019 at 17:32, Gedare
> Bloom
> >     >     >         <gedare at rtems.org <mailto:gedare at rtems.org>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>
> >     >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>>
> >     >     >         >     <mailto:gedare at rtems.org
> >     <mailto:gedare at rtems.org> <mailto:gedare at rtems.org
> >     <mailto:gedare at rtems.org>>
> >     >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>>>
> >     >     >         >     >     <mailto:gedare at rtems.org
> >     <mailto:gedare at rtems.org>
> >     >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>
> >     >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>>
> >     >     >         <mailto:gedare at rtems.org <mailto:gedare at rtems.org>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>
> >     >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>
> >     <mailto:gedare at rtems.org <mailto:gedare at rtems.org>>>>>> wrote:
> >     >     >         >     >     >
> >     >     >         >     >     > You can also build the PRU image into
> >     the RTEMS
> >     >     >         binary. See
> >     >     >         >     >     > examples-v2.git/file_io/crc/init.c
> >     >     >         >     >     >
> >     >     >         >     >     > On Tue, Aug 13, 2019 at 8:46 AM
> Christian
> >     >     Mauderer
> >     >     >         >     >     <list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>
> >     >     >         >     <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>>> wrote:
> >     >     >         >     >     > >
> >     >     >         >     >     > > Hello Nils,
> >     >     >         >     >     > >
> >     >     >         >     >     > > that's a bit odd. I attached an
> expected
> >     >     output
> >     >     >         below.
> >     >     >         >     Some guesses:
> >     >     >         >     >     > >
> >     >     >         >     >     > > - Did you add FAT file system to your
> >     >     application?
> >     >     >         >     >     > > - Is there some odd formatting on
> >     the SD?
> >     >     >         Normally at
> >     >     >         >     least the FAT
> >     >     >         >     >     > > partition used by U-Boot should be
> >     visible.
> >     >     >         >     >     > > - Is your BDBUF configuration OK?
> >     >     >         >     >     > > - Do you have enough file
> descriptors?
> >     >     >         >     >     > >
> >     >     >         >     >     > > Beneath that: If you only need
> >     something where
> >     >     >         you can put
> >     >     >         >     some
> >     >     >         >     >     files,
> >     >     >         >     >     > > you can try to connect a USB stick
> >     instead.
> >     >     >         Maybe that
> >     >     >         >     works better.
> >     >     >         >     >     > >
> >     >     >         >     >     > > Best regards
> >     >     >         >     >     > >
> >     >     >         >     >     > > Christian
> >     >     >         >     >     > >
> >     >     >         >     >     > >
> >     >     >         >     >     > > media listener: event = DISK ATTACH,
> >     state =
> >     >     >         INQUIRY, src
> >     >     >         >     = mmcsd
> >     >     >         >     >     > > media listener: event = DISK ATTACH,
> >     state =
> >     >     >         SUCCESS, src =
> >     >     >         >     >     mmcsd, dest
> >     >     >         >     >     > > = /dev/mmcsd-0
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     INQUIRY,
> >     >     >         src =
> >     >     >         >     /dev/mmcsd-0
> >     >     >         >     >     > > mmcsd0: 4GB <SDHC TO 15.15 SN
> >     000002F6 MFG
> >     >     >         02/2017 by 25
> >     >     >         >     DY> at mmc0
> >     >     >         >     >     > > 24.0MHz/4bit/65535-block
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     FAILED, src =
> >     >     >         >     /dev/mmcsd-0
> >     >     >         >     >     > > media listener: event = PARTITION
> >     INQUIRY,
> >     >     state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > /dev/mmcsd-0
> >     >     >         >     >     > > media listener: event = PARTITION
> >     INQUIRY,
> >     >     state =
> >     >     >         >     SUCCESS, src =
> >     >     >         >     >     > > /dev/mmcsd-0
> >     >     >         >     >     > > media listener: event = PARTITION
> >     ATTACH,
> >     >     state
> >     >     >         = INQUIRY,
> >     >     >         >     src =
> >     >     >         >     >     > > /dev/mmcsd-0
> >     >     >         >     >     > > media listener: event = PARTITION
> >     ATTACH,
> >     >     state
> >     >     >         = SUCCESS,
> >     >     >         >     src =
> >     >     >         >     >     > > /dev/mmcsd-0, dest = /dev/mmcsd-0-0
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     INQUIRY,
> >     >     >         src =
> >     >     >         >     /dev/mmcsd-0-0
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     SUCCESS,
> >     >     >         src =
> >     >     >         >     >     /dev/mmcsd-0-0,
> >     >     >         >     >     > > dest = /media/mmcsd-0-0
> >     >     >         >     >     > > media listener: event = DISK ATTACH,
> >     state =
> >     >     >         INQUIRY, src
> >     >     >         >     = mmcsd
> >     >     >         >     >     > > media listener: event = DISK ATTACH,
> >     state =
> >     >     >         SUCCESS, src =
> >     >     >         >     >     mmcsd, dest
> >     >     >         >     >     > > = /dev/mmcsd-1
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     INQUIRY,
> >     >     >         src =
> >     >     >         >     /dev/mmcsd-1
> >     >     >         >     >     > > mmcsd1: 4GB <MMCHC MMC04G 5.8 SN
> >     160D224B MFG
> >     >     >         09/2014 by 112
> >     >     >         >     >     0x0000> at
> >     >     >         >     >     > > mmc1 48.0MHz/8bit/65535-block
> >     >     >         >     >     > > media listener: event = MOUNT, state
> =
> >     >     FAILED, src =
> >     >     >         >     /dev/mmcsd-1
> >     >     >         >     >     > > media listener: event = PARTITION
> >     INQUIRY,
> >     >     state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > /dev/mmcsd-1
> >     >     >         >     >     > > media listener: event = PARTITION
> >     INQUIRY,
> >     >     state
> >     >     >         = FAILED,
> >     >     >         >     src =
> >     >     >         >     >     > > /dev/mmcsd-1
> >     >     >         >     >     > > media listener: event = DISK ATTACH,
> >     state =
> >     >     >         INQUIRY, src =
> >     >     >         >     >     mmcsd1boot
> >     >     >         >     >     > > mmcsd1boot0: 2MB partion 1 at mmcsd1
> >     >     >         >     >     > > mmcsd1boot1: 2MB partion 2 at mmcsd1
> >     >     >         >     >     > > mmcsd1rpmb: 131kB partion 3 at mmcsd1
> >     >     >         >     >     > >
> >     >     >         >     >     > >
> >     >     >         >     >     > > On 13/08/2019 13:30, Nils Hölscher
> >     wrote:
> >     >     >         >     >     > > > Hi,
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > Thanks for the help.
> >     >     >         >     >     > > > I tried to use your code, but I
> >     always get
> >     >     >         "ERROR: SD
> >     >     >         >     could not be
> >     >     >         >     >     > > > mounted after timeout".
> >     >     >         >     >     > > > Even after raising the waiting
> time.
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > The sources I use start here:
> >     >     >         >     >     > > >
> >     >     >         >
> >     >     >
> >     >
> >
> https://github.com/nilhoel1/rtems-pru/blob/pruss-shell/main.c#L110
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > And my uart output is:
> >     >     >         >     >     > > > ""
> >     >     >         >     >     > > > waiting for SD...
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > usbus0: 480Mbps High Speed USB v2.0
> >     >     >         >     >     > > > usbus1: 480Mbps High Speed USB v2.0
> >     >     >         >     >     > > > media listener: event = DISK
> >     ATTACH, state =
> >     >     >         INQUIRY,
> >     >     >         >     src = mmcsd
> >     >     >         >     >     > > > media listener: event = DISK
> >     ATTACH, state =
> >     >     >         SUCCESS, src =
> >     >     >         >     >     mmcsd, dest
> >     >     >         >     >     > > > = /dev/mmcsd-0
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     >         INQUIRY, src =
> >     >     >         >     /dev/mmcsd-0
> >     >     >         >     >     > > > ugen0.1: <Mentor Graphics OTG Root
> >     HUB>
> >     >     at usbus0
> >     >     >         >     >     > > > ugen1.1: <Mentor Graphics OTG Root
> >     HUB>
> >     >     at usbus1
> >     >     >         >     >     > > > uhub0: <Mentor Graphics OTG Root
> >     HUB, class
> >     >     >         9/0, rev
> >     >     >         >     >     2.00/1.00, addr 1>
> >     >     >         >     >     > > > on usbus0
> >     >     >         >     >     > > > uhub1: <Mentor Graphics OTG Root
> >     HUB, class
> >     >     >         9/0, rev
> >     >     >         >     >     2.00/1.00, addr 1>
> >     >     >         >     >     > > > on usbus1
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     FAILED,
> >     >     >         src =
> >     >     >         >     /dev/mmcsd-0
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     INQUIRY, state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > > /dev/mmcsd-0
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     INQUIRY, state =
> >     >     >         >     SUCCESS, src =
> >     >     >         >     >     > > > /dev/mmcsd-0
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     ATTACH, state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > > /dev/mmcsd-0
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     ATTACH, state =
> >     >     >         >     SUCCESS, src =
> >     >     >         >     >     > > > /dev/mmcsd-0, dest = /dev/mmcsd-0-0
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     >         INQUIRY, src =
> >     >     >         >     >     /dev/mmcsd-0-0
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     FAILED,
> >     >     >         src =
> >     >     >         >     >     /dev/mmcsd-0-0
> >     >     >         >     >     > > > media listener: event = DISK
> >     ATTACH, state =
> >     >     >         INQUIRY,
> >     >     >         >     src = mmcsd
> >     >     >         >     >     > > > media listener: event = DISK
> >     ATTACH, state =
> >     >     >         SUCCESS, src =
> >     >     >         >     >     mmcsd, dest
> >     >     >         >     >     > > > = /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     >         INQUIRY, src =
> >     >     >         >     /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     FAILED,
> >     >     >         src =
> >     >     >         >     /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     INQUIRY, state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > > /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     INQUIRY, state =
> >     >     >         >     SUCCESS, src =
> >     >     >         >     >     > > > /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     ATTACH, state =
> >     >     >         >     INQUIRY, src =
> >     >     >         >     >     > > > /dev/mmcsd-1
> >     >     >         >     >     > > > media listener: event = PARTITION
> >     >     ATTACH, state =
> >     >     >         >     SUCCESS, src =
> >     >     >         >     >     > > > /dev/mmcsd-1, dest = /dev/mmcsd-1-0
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     >         INQUIRY, src =
> >     >     >         >     >     /dev/mmcsd-1-0
> >     >     >         >     >     > > > media listener: event = MOUNT,
> state =
> >     >     FAILED,
> >     >     >         src =
> >     >     >         >     >     /dev/mmcsd-1-0
> >     >     >         >     >     > > > media listener: event = DISK
> >     ATTACH, state =
> >     >     >         INQUIRY, src =
> >     >     >         >     >     mmcsd1boot
> >     >     >         >     >     > > > uhub0: 1 port with 1 removable,
> >     self powered
> >     >     >         >     >     > > > uhub1: 1 port with 1 removable,
> >     self powered
> >     >     >         >     >     > > > ERROR: SD could not be mounted
> >     after timeout
> >     >     >         >     >     > > > ""
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > Thanks,
> >     >     >         >     >     > > > Nils
> >     >     >         >     >     > > >
> >     >     >         >     >     > > > On Mon, 12 Aug 2019 at 18:01,
> >     Christian
> >     >     Mauderer
> >     >     >         >     >     <list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>
> >     >     >         >     <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>>
> >     >     >         >     >     > > > <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>>>
> >     >     >         >     <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> >     >     >         <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de> <mailto:list at c-mauderer.de
> >     <mailto:list at c-mauderer.de>>
> >     >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> >     <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>>>> wrote:
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     On 12/08/2019 07:28, Nils
> Hölscher
> >     >     wrote:
> >     >     >         >     >     > > >     > Hi,
> >     >     >         >     >     > > >     >
> >     >     >         >     >     > > >     > Can anyone help me with this?
> >     >     >         >     >     > > >     > I need to access the BBB's
> >     SD-Card, so
> >     >     >         that I can load
> >     >     >         >     >     my pru
> >     >     >         >     >     > > >     example on
> >     >     >         >     >     > > >     > the pru.
> >     >     >         >     >     > > >     >
> >     >     >         >     >     > > >     > Thanks,
> >     >     >         >     >     > > >     > Nils
> >     >     >         >     >     > > >     >
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     Hello Nils,
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     take a look at the following
> >     >     application:
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >
> >     >     >         >     >
> >     >     >         >
> >     >     >
> >     >
> >
> https://gitlab.com/c-mauderer/rtems-bbb/blob/master/apps/wifi-sample/init.c#L64
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >
> >     >     >         >     >
> >     >     >         >
> >     >     >
> >     >
> >
> https://gitlab.com/c-mauderer/rtems-bbb/blob/master/apps/wifi-sample/libbsdhelper.c#L122
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     You should mainly need the
> stuff
> >     >     from the
> >     >     >         >     >     libbsdhelper_init_sd_card()
> >     >     >         >     >     > > >     and libbsdhelper_wait_for_sd().
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     Please note that the SD card
> >     needs quite
> >     >     >         some time to
> >     >     >         >     >     initialize on BBB.
> >     >     >         >     >     > > >     I haven't had a look at it why
> >     that
> >     >     is the
> >     >     >         case.
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     Best regards
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >     Christian
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >
> >     >     >         >     >     > > >
> >     >     _______________________________________________
> >     >     >         >     >     > > > users mailing list
> >     >     >         >     >     > > > users at rtems.org
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> >     <mailto:users at rtems.org>>
> >     >     <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>
> >     >     >         <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>
> >     >     <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>>
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> >     <mailto:users at rtems.org>>
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> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>
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> >     <mailto:users at rtems.org <mailto:users at rtems.org>>
> >     >     <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>>>
> >     >     >         >     >     > > >
> >     >     http://lists.rtems.org/mailman/listinfo/users
> >     >     >         >     >     > > >
> >     >     >         >     >     > >
> >     >     _______________________________________________
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> >     >     <mailto:users at rtems.org <mailto:users at rtems.org>
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> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>
> >     >     >         <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>
> >     >     <mailto:users at rtems.org <mailto:users at rtems.org>
> >     <mailto:users at rtems.org <mailto:users at rtems.org>>>>>
> >     >     >         >     >     > >
> >     http://lists.rtems.org/mailman/listinfo/users
> >     >     >         >     >     >
> >     >     >         >     >
> >     >     >         >     >     --
> >     >     >         >     >     --
> >     >     >         >     >
>  --------------------------------------------
> >     >     >         >     >     embedded brains GmbH
> >     >     >         >     >     Herr Christian Mauderer
> >     >     >         >     >     Dornierstr. 4
> >     >     >         >     >     D-82178 Puchheim
> >     >     >         >     >     Germany
> >     >     >         >     >     email:
> >     christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>
> >     >     >         >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
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> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>>
> >     >     >         >     >
> >      <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>
> >     >     >         >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>
> >     >     >         <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>
> >     >     <mailto:christian.mauderer at embedded-brains.de
> >     <mailto:christian.mauderer at embedded-brains.de>>>>>
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