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missed in c55eb8a0c3ca5b8ed1081e7eb8a423563288fb58
Gbp-Dch: Ignore
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if a script exits due to a failure and `set -e`, we should ensure that an
error message is printed to be clear to the user that something actually
went wrong.
similarly it would be good to print a suitable message should the user
cancel with ctrl+c for instance.
Gbp-Dch: Short
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Current versions of the project files are built upon versions published
and licensed by Daniel Baumann, but are modified copies of those files and
thus need to be marked as such per licensing requirements (afaik he did
not pass along ownership / licensing rights to anyone when he left the
project). We should also be careful to not be misrepresenting such
modified copies as being attributed to Daniel.
Adding a new copyright line referring to "The Debian Live team" should
suffice for this.
The authorship block in man pages has also similarly been updated.
Notes:
- tweaked a copy of daniel copyright lines stating 2014 instead of 2015.
both of these cases were in files that i had personally introduced in
some of my past merged commits that moved some code around. i don't know
why they stated 2014.
- binary_onie was introduced in 2018, so that has a 2018 date instead of
2016 unlike the rest.
- 'efi-image' is a 3rd-party (Canonical Ltd) work that we bundle, but it
has been modified by 674794a8f4d61a729d2dbd6d99385d2826138694 and
36a3ba76347ef72df1c316312ed3a26aa4b0c816 so I similarly added a
debian live copyright line.
- 'grub-cpmodules' is similar. it was only changed by the indentation fix
of 36a3ba76347ef72df1c316312ed3a26aa4b0c816 but modification is
modification, and this does help cover any possible future changes that
might be made.
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if you execute the bootstrap stage with no internet connection, you get
the following output:
```
[2020-03-10 19:18:46] lb bootstrap
P: Setting up clean exit handler
[2020-03-10 19:18:46] lb bootstrap_cache restore
[2020-03-10 19:18:46] lb bootstrap_debootstrap
P: Begin bootstrapping system...
P: If the following stage fails, the most likely cause of the problem is with your mirror configuration or a caching proxy.
P: Running debootstrap (download-only)...
I: Retrieving InRelease
I: Retrieving Release
E: Failed getting release file http://deb.debian.org/debian/dists/buster/Release
P: Begin unmounting filesystems...
P: Saving caches...
chroot: failed to run command ‘/usr/bin/env’: No such file or directory
```
the last line looked suspicious. investigating it turns out that there was
a deficiency in the exit handler.
when debootstrap fails to download what it needs due to lack of a
connection, that failure due to `set -e` causes the Exit() handler to kick
in. Part of this includes outputting the "Saving caches..." line, before
then making a call to Save_package_cache(). That in turn runs the following
command:
```
Chroot chroot "apt-get autoclean" || true
```
The Chroot() function includes a line starting with:
```
${_LINUX32} chroot "${CHROOT}" /usr/bin/env
```
which is the source of the last output line.
the reason we see this unexpected output is that with bootstrapping having
failed, there is no /usr/bin/env within the chroot so it is bound to fail.
the fact is, the exit handler has no business trying to pretty much
anything that it does if the bootstrap_debootstrap stage has not
completed.
this implements such a restriction and thus resolves the problem of this
unexpected and confusing output in the described situation.
we will now see:
```
[2020-03-10 19:18:46] lb bootstrap
P: Setting up clean exit handler
[2020-03-10 19:18:46] lb bootstrap_cache restore
[2020-03-10 19:18:46] lb bootstrap_debootstrap
P: Begin bootstrapping system...
P: If the following stage fails, the most likely cause of the problem is with your mirror configuration or a caching proxy.
P: Running debootstrap (download-only)...
I: Retrieving InRelease
I: Retrieving Release
E: Failed getting release file http://deb.debian.org/debian/dists/buster/Release
```
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Partial fix for #952919
Gbp-Dch: Short
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These functions are specific to handling packages stored in the
cache, not other files. They are also always used with the same
`cache/packages.` prefix to the path.
Gbp-Dch: Short
Closes: #952916
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Closes: #952861
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<thanatermesis@gmail.com>.
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tree.
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pseudo-filesystems helpers in exit function.
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When there is an error, the Exit() handler unmounts filesystems within
the chroot. This adds /root/config to the list used when /proc/mounts is
not available.
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for spotting it.
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#586929).
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configuration options.
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executed script.
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time ago.
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