[Users] simfs with ploop?

[Rene C.]

Thanks, now I understand.

So after deleting /etc/mtab I need to make as symlink from
/proc/mounts (ln -s /proc/mounts /etc/mtab). That was the bit I was
missing.


On Wed, Dec 18, 2013 at 1:36 AM, Kir Kolyshkin <kir at openvz.org> wrote:
> On 12/17/2013 12:27 AM, Rene C. wrote:
>>
>> Sure ....
>>
>> # ls -l /vza1/private/1703
>> total 16
>> drwxr-xr-x 2 root root 4096 Dec 15 04:10 dump
>> drwx------ 3 root root 4096 Dec 15 04:10 root.hdd
>> -rw-r--r-- 1 root root  443 Dec 15 04:09 Snapshots.xml
>> -rw-r--r-- 1 root root   37 Dec 15 03:06 vzpbackup_snapshot
>> # vzlist -o layout 1703
>> LAYOUT
>> ploop
>> #
>>
>> Surely deleting the mount table isn't healthy, isn't it needed by
>> something?
>
>
> This is how it should look like:
>
> [host] # vzctl enter 1018
> entered into CT 1018
> [CT1018] # ls -l /etc/mtab
> lrwxrwxrwx 1 root root 12 Nov  7 21:20 /etc/mtab -> /proc/mounts
>
> And /proc/mounts is showing info from the kernel which can't be wrong:
>
> [CT1018]# cat /proc/mounts
> /dev/ploop51540p1 / ext4 rw,relatime,barrier=1,data=ordered,balloon_ino=12 0
> 0
> proc /proc proc rw,relatime 0 0
> sysfs /sys sysfs rw,relatime 0 0
> none /dev devtmpfs rw,relatime,mode=755 0 0
> none /dev/pts devpts rw,relatime,gid=5,mode=620,ptmxmode=000 0 0
> none /dev/shm tmpfs rw,relatime 0 0
> none /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0
>
>
>>
>> On Tue, Dec 17, 2013 at 9:41 AM, Kir Kolyshkin <kir at openvz.org> wrote:
>>>
>>> On 12/16/2013 04:51 PM, Rene C. wrote:
>>>>
>>>> I tried just removing it, does not seem to fix anything. Need to do
>>>> anything else? Remount, restart, anything?
>>>
>>>
>>> Would be great if you can copy-paste some output from the terminal,
>>> otherwise it's more complicated to debug.
>>>
>>> Maybe your CT was not really converted.
>>>
>>> Please show output of
>>>
>>> ls -l /vz/private/1703/
>>> vzlist -o layout 1703
>>>
>>>
>>> On Thu, Dec 12, 2013 at 11:43 AM, Rene C. <openvz at dokbua.com> wrote:
>>>>>
>>>>> Ok thanks. Just remove it, nothing else?  Need to restart the
>>>>> container or anything?
>>>>>
>>>>> On Thu, Dec 12, 2013 at 10:02 AM, Kir Kolyshkin <kir at openvz.org> wrote:
>>>>>>
>>>>>> On 12/11/2013 06:28 PM, Rene C. wrote:
>>>>>>>
>>>>>>> I just noticed there is a contaner on one of our hardware nodes that
>>>>>>> appears to have been changed to ploop, but the filesystem is still
>>>>>>> simfs:
>>>>>>>
>>>>>>> # vzctl exec 1703 df -h
>>>>>>> Filesystem            Size  Used Avail Use% Mounted on
>>>>>>> /dev/simfs             99G   65G   29G  70% /
>>>>>>> none                  1.0G  4.0K  1.0G   1% /dev
>>>>>>> # vzctl convert 1703
>>>>>>> CT is already on ploop
>>>>>>>
>>>>>>>
>>>>>>> All other containers use a /dev/ploopXXXX device.
>>>>>>>
>>>>>>> Is this a problem? Should it be fixed? How?
>>>>>>
>>>>>>
>>>>>> I guess this is caused by a record in CT's /etc/mtab. This should be
>>>>>> harmful.
>>>>>> If you want to fix it, just remove CT's /etc/mtab
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at openvz.org
>>>>>> https://lists.openvz.org/mailman/listinfo/users
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openvz.org
>>>> https://lists.openvz.org/mailman/listinfo/users
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at openvz.org
>>> https://lists.openvz.org/mailman/listinfo/users
>>
>> _______________________________________________
>> Users mailing list
>> Users at openvz.org
>> https://lists.openvz.org/mailman/listinfo/users
>
>
> _______________________________________________
> Users mailing list
> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users