tar/psx/bsdtar on CentOS 8

[Joel Sherrill]

Gotcha. And re-adding the devel@ mailing list.

It is just a matter of the RPM name changing (and likely the pax
implementation).

I will update the Users Guide and post a patch.

On Fri, Feb 28, 2020 at 4:12 PM Jeff Mayes <Jeff.Mayes at oarcorp.com> wrote:

> Yes, spax is the rpm.  So, “yum install spax” and you get the “pax”
> command.
>
>
>
> Thanks
>
> Jeff
>
>
>
> *From:* Joel Sherrill <joel at rtems.org>
> *Sent:* Friday, February 28, 2020 3:43 PM
> *To:* Jeff Mayes <Jeff.Mayes at OARcorp.com>; rtems-devel at rtems.org <
> devel at rtems.org>
> *Cc:* Chris Johns <chrisj at rtems.org>
> *Subject:* Re: tar/psx/bsdtar on CentOS 8
>
>
>
> Pax to spax as an rpm?
>
>
>
> I will try to.make a simple patch and let you review it
>
>
>
> On Fri, Feb 28, 2020, 2:10 PM Jeff Mayes <Jeff.Mayes at oarcorp.com> wrote:
>
> Aha!  So, spax provides pax now, and spax is in the BaseOS Repo.  That’ll
> need to be updated in the documentation.
>
>
>
> Thanks!
>
>
>
>
>
> *From:* Joel Sherrill <joel at rtems.org>
> *Sent:* Friday, February 28, 2020 10:21 AM
> *To:* Jeff Mayes <Jeff.Mayes at OARcorp.com>
> *Cc:* Chris Johns <chrisj at rtems.org>; rtems-devel at rtems.org <
> devel at rtems.org>
> *Subject:* Re: tar/psx/bsdtar on CentOS 8
>
>
>
> This follow up from Jeff didn't hit the list.
>
>
>
> On top of pax may be an inactive/dead project, there is the issue that
> Grsecurity
>
> has been cited as violating the GPL with their business of providing
> kernel patches
>
> to paying customers but not allowing redistribution of those patches.
>
>
>
> https://lkml.org/lkml/2019/11/6/4
>
>
>
> They sued Bruce Perens (
> https://thenewstack.io/open-source-pioneer-bruce-perens-sued-grsecurity/)
>
> for defamation after his comments on their actions.
>
>
>
> But that's not where the CentOS 7 pax says it came from. Do an rpm -i
>
> and you see the URL is http://ftp.suse.com/pub/people/kukuk/pax which
>
> is now dead. The user has a directory but it only has glibc-addons.
>
> I think this project died also.
>
>
>
> Did you try yum provides "*pax"? or the dnf equivalent?
>
>
>
> We may end up needing to identify an upstream pax implementation and
>
> add it to the rtems-source-builder. I'm hoping that's the out here.
>
>
>
> --joel
>
>
>
> On Thu, Feb 27, 2020 at 8:41 PM Jeff Mayes <Jeff.Mayes at oarcorp.com> wrote:
>
> Hi,
> I think you misread that RHEL 8 page.  I had already looked there, but
> looked again tonight.  Pax is only listed once on the whole page, and it's
> under this heading:
>   A.4. Removed packages
>   The following packages are part of RHEL 7 but are not distributed with
> RHEL 8:
>
> The "Homepage of Pax" looks a little stale.  --->
> https://pax.grsecurity.net/
>
> Jeff
>
>
>
>
>
> From: Joel Sherrill <joel at rtems.org>
>
> Sent: Thursday, February 27, 2020 4:20 PM
>
> To: Chris Johns <chrisj at rtems.org>; Jeff Mayes <Jeff.Mayes at OARcorp.com>
>
> Cc: rtems-devel at rtems.org <devel at rtems.org>
>
> Subject: Re: tar/psx/bsdtar on CentOS 8
>
>
>
>
>
>
> Jeff.. try the stuff below and let us know.
>
>
>
>
> On Tue, Feb 25, 2020 at 9:12 PM Chris Johns <chrisj at rtems.org> wrote:
>
>
>
> On 25/2/20 5:09 am, Joel Sherrill wrote:
>
> > Hi
>
> >
>
> > CentOS 8 does not have a package for pax. It does have a package for
> bsdtar.
>
> >
>
> > Is bsdtar sufficient for the tests? I don't call the precise issue we
> favored
>
> > pax over
>
> > GNU tar.
>
> >
>
> > If so, could testsuites/libtests/configure.ac <http://configure.ac>
> accept both?
>
> >
>
> > Pax appears to be used only for the dl* and tar* tests. I had thought
> about it
>
> > not being a hard fail but those seem like bad tests to drop out.
>
>
>
> Does RTEMS understand the standard tar format? If PAX format is needed
> does your
>
> tar accept `--posix` or `--format pax`. I am happy for a change like this
> but it
>
> may only work on FreeBSD ;)
>
>
>
>
>
> Long ago, I swear it was just tar but something broke on some host. My
> vague recollection
> is very large user ids in a Mac networked environment. But the ustar
> format allows 8 octets
> for user ids.
>
>
>
>
> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
>
>
>
>
> That may not have tripped the switch to pax except that pax is the POSIX
> name of the
>
>
> command.
>
>
>
> Looking for the RHEL 8 release notes about this, I found
>
>
>
>
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/considerations_in_adopting_rhel_8/index
>
>
>
>
> which indicates it moved to the "CodeReady Linux Builder repository" along
> with a
>
>
> number of other packages. That is in the PowerTools repo for CentOS.
>
>
>
>
> https://serverfault.com/questions/997896/how-to-enable-powertools-repository-in-centos-8
>
>
>
>
> Hopefully it works. Jeff will let us know.
>
>
>
> --joel
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Chris
>
>
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