Thank you for your bug report. Unfortunately, without log files, we are
unable to determine the issue.
Issues like that could be a failing disk that corrupted say the
directory index and hence you get "not found" instead of "I/o error".
They could also be the cause of missing dynamic libraries. You may be
able to run busybox assuming busybox-stati. Is installed.
If that doesn't work, please boot a live disc, mount the installed
systems partition, for example, using the Disks app if you prefer a
graphical workflow for that, and then gather the log files (dist-upgrade
directory and dmesg) from there.
If this is an issue of missing libraries this could potentially be fixed
by a set of complex apt and/or manual dpkg invocations from the live
image (such as dpkg --extract, with a libc6 deb, and the mount point as
arguments, to make the libc available again; and then some apt install
--reinstall magic to reinstall all installed packages). That being said,
concrete steps are pretty complex to determine and there's a whole bunch
of trial and error.
You may prefer to reinstall a fresh 22.04, or restore a backup of your
20.04 install if you took one.
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2111121
Title:
do-release-upgrade to upgrade our system from 20.04 LTS to 22.05 LTS
failed and crashed the entire system, all the commands return no file
or directory found
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