Hi Jarry, Jarry wrote:
> On 08-Nov-15 17:58, Mike Gilbert wrote: >> On Fri, Nov 6, 2015 at 12:19 PM, Jarry <mr.ja...@gmail.com> wrote: >>> Hi Gentoo-users, >>> >>> I noted one strange thing today: It seems one of my servers lost "/"! >>> >>> vs5-dns ~ # df >>> Filesystem 1K-blocks Used Available Use% Mounted on >>> /var/log/named 10138552 2223148 7377344 24% /chroot/dns/var/log/named >>> tmpfs 308196 420 307776 1% /run >>> dev 10240 0 10240 0% /dev >>> shm 1540968 0 1540968 0% /dev/shm >>> cgroup_root 10240 0 10240 0% /sys/fs/cgroup >>> none 1048576 0 1048576 0% /var/tmp/portage >> >> Is your /etc/mtab a regular file, or is it a symlink to >> /proc/self/mounts? The latter is recommended. > > It is regular file. I never changed it... > > vs5-dns ~ # ls -l /etc/mtab > -rw-r--r-- 1 root root 908 Nov 9 19:14 /etc/mtab > >> Anyway, please have a look at the contents of /etc/mtab, >> /proc/self/mounts, and proc/self/mountinfo while named is running and >> when it is stopped. If you pastebin them we can take a look for key >> differences. > > With bind running: > http://pastebin.com/wkTW6xAY > > without bind: > http://pastebin.com/JG5FPNDW > > While I can see some differences there, I still do not understand > why is "/" missing in "df" output. BTW I can not proove it, but this > was not the case all the time. At least when I was tuning monitoring > software, I'm pretty sure "/" was there... Actually I have the same problem, but I do not run named. /etc/mtab is a regular file on my system, too (since years). I am actually missing two entries: / /var/share/storage Compare with contents of mtab. Both entries were originally there. Do you have also nfs exports? =========================== %< ============================= joehni@bobbel ~ $ df -hl Filesystem Size Used Avail Use% Mounted on udev 10M 0 10M 0% /dev /var/spool/cups-pdf 892G 261G 586G 31% /export/cups-pdf tmpfs 396M 572K 395M 1% /run none 2.0G 0 2.0G 0% /dev/shm cgroup_root 10M 0 10M 0% /sys/fs/cgroup /dev/sda6 926M 269M 594M 32% /var/log /var/share/storage/Video/Film 3.6T 2.3T 1.2T 65% /export/storage/Video/Film joehni@bobbel ~ $ cat /etc/mtab proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 udev /dev devtmpfs rw,nosuid,relatime,size=10240k,nr_inodes=505255,mode=755 0 0 devpts /dev/pts devpts rw,relatime,gid=5,mode=620 0 0 sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 /dev/sda5 / ext4 rw,relatime,data=ordered 0 0 tmpfs /run tmpfs rw,nodev,relatime,size=404508k,mode=755 0 0 mqueue /dev/mqueue mqueue rw,nosuid,nodev,noexec,relatime 0 0 none /dev/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=2097152k 0 0 cgroup_root /sys/fs/cgroup tmpfs rw,nosuid,nodev,noexec,relatime,size=10240k,mode=755 0 0 fusectl /sys/fs/fuse/connections fusectl rw,nosuid,nodev,noexec,relatime 0 0 openrc /sys/fs/cgroup/openrc cgroup rw,nosuid,nodev,noexec,relatime,release_agent=/lib64/rc/sh/cgroup-release- agent.sh,name=openrc 0 0 cpuset /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0 cpu /sys/fs/cgroup/cpu cgroup rw,nosuid,nodev,noexec,relatime,cpu 0 0 cpuacct /sys/fs/cgroup/cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0 blkio /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0 memory /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0 devices /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0 freezer /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0 net_cls /sys/fs/cgroup/net_cls cgroup rw,nosuid,nodev,noexec,relatime,net_cls 0 0 perf_event /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0 net_prio /sys/fs/cgroup/net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_prio 0 0 debug /sys/fs/cgroup/debug cgroup rw,nosuid,nodev,noexec,relatime,debug 0 0 /dev/sda6 /var/log ext4 rw 0 2 /dev/sdb1 /var/share/storage/Video/Film ext4 rw 0 2 /var/db/portage /export/portage none rw,bind 0 0 /var/share/storage /export/storage none rw,bind 0 0 /var/spool/cups-pdf /export/cups-pdf none rw,bind 0 0 /var/share/storage/Video/Film /export/storage/Video/Film none rw,bind 0 0 binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nodev,noexec,nosuid 0 0 rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0 nfsd /proc/fs/nfsd nfsd rw,nodev,noexec,nosuid 0 0 =========================== %< =============================
