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Groups > linux.debian.kernel > #69719
| From | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null |
| Date | 2021-03-06 16:50 +0100 |
| Message-ID | <BPHlL-2cx-3@gated-at.bofh.it> (permalink) |
| References | <BPFMZ-1rp-1@gated-at.bofh.it> <BPFMZ-1rp-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
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On Sat, 2021-03-06 at 14:57 +0100, Frederik Lindenaar wrote:
> Package: initramfs-tools
> Version: 0.133+deb10u1
> Severity: important
>
> When one disables the "Predicatble Network InterfaceNames"
> by making /lib/systemd/network/99-default.link a symlink to /dev/zero then
> update-initramfs will fail as the copy of this symlink will fill-up all space
> available in /var/tmp and makes it impossible to install any kernel image
>
> the culprit is the following command executed by update-initramfs:
>
> find /etc/systemd/network -name *.link -execdir cp -pt /var/tmp/ {} +
>
> As it (and should) dereference de symlink, it reads zero bytes from
> /dev/null until the disk is full.
[...]
It looks like you have mixed up /dev/null and /dev/zero (as a Dutch
learner, I can see how that would happen). /dev/null is always empty
and would be copied as an empty file. This is the correct target for
symlinks when you want to disable a systemd unit. /dev/zero is an
infinite stream of binary zeroes and would result in the behaviour you
saw.
Ben.
--
Ben Hutchings
Knowledge is power. France is bacon.
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Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Frederik Lindenaar <debian@frederik.lindenaar.nl> - 2021-03-06 15:10 +0100
Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Cyril Brulebois <kibi@debian.org> - 2021-03-06 16:40 +0100
Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Frederik Lindenaar <frederik@lindenaar.nl> - 2021-03-06 17:30 +0100
Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Ben Hutchings <ben@decadent.org.uk> - 2021-03-06 16:50 +0100
Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Frederik Lindenaar <frederik@lindenaar.nl> - 2021-03-06 17:30 +0100
Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null Ben Hutchings <ben@decadent.org.uk> - 2021-03-07 20:40 +0100
Processed: Re: Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-03-06 17:10 +0100
Processed: Re: Bug#984650: update-initramfs fails when /etc/systemd/network/99-default.link is symlink to /dev/null "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-03-07 21:00 +0100
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