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mtab: fix update logic

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This advises users to remove mtab from their runlevels if /etc/mtab is a
symlink, and it creates the symlink if /etc/mtab does not exist on a
system.

X-Gentoo-Bug: 560060
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=560060
This commit is contained in:
William Hubbs 2015-10-07 11:35:31 -05:00
parent 80d3928b0d
commit 6fa0d6318b
1 changed files with 6 additions and 9 deletions
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15
init.d/mtab.in
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@ -12,21 +12,18 @@ depend()
start() start()
{ {
[ -L /etc/mtab ] && return 0
local rc=0 local rc=0
ebegin "Updating /etc/mtab" ebegin "Updating /etc/mtab"
if ! checkpath -W /etc; then if [ -L /etc/mtab ] ; then
ewarn "/etc/mtab is a symlink, not updating."
ewarn "FYI - You can safely remove mtab from your runlevels."
elif ! checkpath -W /etc; then
rc=1 rc=1
elif [ ! -e /etc/mtab ]; then elif [ ! -e /etc/mtab ]; then
einfo "Creating mtab symlink"
ln -snf /proc/self/mounts /etc/mtab ln -snf /proc/self/mounts /etc/mtab
else else
ewarn "The support for updating /etc/mtab as a file is" einfo "Updating mtab file"
ewarn "deprecated and will be removed in the future."
ewarn "Please run the following command as root on your system."
ewarn
ewarn "ln -snf /proc/self/mounts /etc/mtab"
ewarn
# With / as tmpfs we cannot umount -at tmpfs in localmount as that # With / as tmpfs we cannot umount -at tmpfs in localmount as that
# makes / readonly and dismounts all tmpfs even if in use which is # makes / readonly and dismounts all tmpfs even if in use which is
# not good. Luckily, umount uses /etc/mtab instead of /proc/mounts # not good. Luckily, umount uses /etc/mtab instead of /proc/mounts