tmpfiles already checks if the symlink is the same if it already exists.
However, in this case it's not literally the same: your's points to
/proc/mounts while /usr/lib/tmpfiles.d/debian.conf makes it point to
../proc/self/mounts. If these were the same, this error would disappear.
Now, /etc/mtab → /proc/mounts is a waste as /proc/mounts is already a
symlink to self/mounts, so you need to resolve symlinks twice. The "../"
is so that this works with different --root arguments, i. e. if you want
to do things with such an image when you mount it somewhere.
Can I convince you to change the snappy image to have /etc/mtab →
../proc/self/mounts ? If not, could we at least agree to →
/proc/self/mounts to avoid the double resolution?
** Summary changed:
- please allow /etc/mtab to be a pre-existing link on readonly filesystems
+ make snappy's /etc/mtab symlink agree to tmpfiles.d/debian.conf
** Changed in: systemd (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1547033
Title:
make snappy's /etc/mtab symlink agree to tmpfiles.d/debian.conf
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