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On Fri, Nov 6, 2015 at 12:19 PM, Jarry <mr.jarry@×××××.com> wrote: |
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> Hi Gentoo-users, |
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> |
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> I noted one strange thing today: It seems one of my servers lost "/"! |
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> |
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> vs5-dns ~ # df |
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> Filesystem 1K-blocks Used Available Use% Mounted on |
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> /var/log/named 10138552 2223148 7377344 24% /chroot/dns/var/log/named |
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> tmpfs 308196 420 307776 1% /run |
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> dev 10240 0 10240 0% /dev |
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> shm 1540968 0 1540968 0% /dev/shm |
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> cgroup_root 10240 0 10240 0% /sys/fs/cgroup |
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> none 1048576 0 1048576 0% /var/tmp/portage |
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> |
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> And it seems I found the thief who stole it: |
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> |
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> vs5-dns ~ # /etc/init.d/named stop |
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> * Caching service dependencies ... [ ok ] |
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> * Stopping chrooted named ... |
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> * Umounting chroot dirs ... |
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> * umounting /chroot/dns/etc/bind ... [ ok ] |
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> * umounting /chroot/dns/var/log/named ... [ ok ] |
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> * umounting /chroot/dns/var/bind ... [ ok ] |
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> vs5-dns ~ # df |
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> Filesystem 1K-blocks Used Available Use% Mounted on |
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> /dev/sda2 10138552 2223140 7377352 24% / |
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> tmpfs 308196 416 307780 1% /run |
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> dev 10240 0 10240 0% /dev |
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> shm 1540968 0 1540968 0% /dev/shm |
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> cgroup_root 10240 0 10240 0% /sys/fs/cgroup |
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> none 1048576 0 1048576 0% /var/tmp/portage |
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> vs5-dns ~ # /etc/init.d/named start |
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> * Starting chrooted named ... |
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> * Mounting chroot dirs |
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> * mounting /etc/bind to /chroot/dns/etc/bind [ ok ] |
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> * mounting /var/bind to /chroot/dns/var/bind [ ok ] |
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> * mounting /var/log/named to /chroot/dns/var/log/named [ ok ] |
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> * Checking named configuration ... [ ok ] |
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> vs5-dns ~ # df |
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> Filesystem 1K-blocks Used Available Use% Mounted on |
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> /var/log/named 10138552 2223160 7377332 24% /chroot/dns/var/log/named |
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> tmpfs 308196 420 307776 1% /run |
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> dev 10240 0 10240 0% /dev |
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> shm 1540968 0 1540968 0% /dev/shm |
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> cgroup_root 10240 0 10240 0% /sys/fs/cgroup |
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> none 1048576 0 1048576 0% /var/tmp/portage |
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> vs5-dns ~ # |
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> |
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> So it seems whenever chrooted bind/named is running, "/" simply |
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> dissapeares from the list of mounted filesystem. Instead of it, |
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> chrooted /var/log/named is listed. Is this correct behaviour??? |
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> |
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> This is a little problem for me, as I run monitoring software |
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> which (appart from other things) check filesystems if they are |
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> not close to being full. With bind/named running it complains |
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> it can not find "/" in df output. I'd like to get my "/" back, |
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> but I do not know how to do it... |
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|
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Is your /etc/mtab a regular file, or is it a symlink to |
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/proc/self/mounts? The latter is recommended. |
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|
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Anyway, please have a look at the contents of /etc/mtab, |
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/proc/self/mounts, and proc/self/mountinfo while named is running and |
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when it is stopped. If you pastebin them we can take a look for key |
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differences. |
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