[PATCH] user/hosts/posix.rst: Update Ubuntu instructions to 22.x

[Joel Sherrill]

Closes #4821.
---
 user/hosts/posix.rst | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/user/hosts/posix.rst b/user/hosts/posix.rst
index d263247..d79e183 100644
--- a/user/hosts/posix.rst
+++ b/user/hosts/posix.rst
@@ -137,16 +137,16 @@ prefix under your home directory as recommended and end up on the SD card.
 Ubuntu
 ~~~~~~
 
-The latest version is Ubuntu 20.04.3 LTS 64-bit. This section also includes
+The latest version is Ubuntu 22.04 LTS 64-bit. This section also includes
 Xubuntu. A minimal installation was used and the following packages installed:
 
 .. code-block:: none
 
-  $ sudo apt-get build-dep build-essential gcc-defaults g++ gdb unzip \
-  pax bison flex texinfo python3-dev libpython2-dev libncurses5-dev \
-  zlib1g-dev
+  $ sudo apt install build-essential g++ gdb unzip pax bison flex texinfo \
+  python3-dev python-is-python3 libpython2-dev libncurses5-dev zlib1g-dev \
+  ninja-build pkg-config
 
-Note that in previous versions of Ubuntu, the package libpython2-dev was
+Note that in older versions of Ubuntu, the package libpython2-dev was
 python2.7-dev. The name of packages changes over time. You need the
 package with Python development libraries for C/C++ programs. The following
 is needed for recent versions:
-- 
1.8.3.1