[BlueOnyx:09073] Re: Read-only /tmp

[Robert Fitzpatrick]

On 11/17/2011 3:32 PM, Gerald Waugh wrote:
> Robert Fitzpatrick wrote:
>> Found on a BO 5106 server that the /tmp filesystem is read-only, not
>> sure why. I tried to remount and it say write-protected. I compared /tmp
>> permissions to another working machine, both the same. I tried to fsck
>> and it warns of severe damage if mounted, I try to unmount and it is busy...
>>
>>> [root at vnyxbo ticket]# touch /tmp/test
>>> touch: cannot touch `/tmp/test': Read-only file system
>>> [root at vnyxbo ticket]# mount /tmp -o remount,rw
>>> mount: block device /dev/VolGroup00/tmp is write-protected, mounting
>>> read-only
>>> [root at vnyxbo ticket]# fsck /tmp
>>> fsck 1.39 (29-May-2006)
>>> e2fsck 1.39 (29-May-2006)
>>> /dev/VolGroup00/tmp is mounted.
>>>
>>> WARNING!!!  Running e2fsck on a mounted filesystem may cause
>>> SEVERE filesystem damage.
>>>
>>> Do you really want to continue (y/n)? no
>>>
>>> check aborted.
>>> [root at vnyxbo ticket]# ls -lah /tmp
>>> total 4.9M
>>> drwxrwxrwt  4 root root  36K Nov 17 00:03 .
>>> drwxr-xr-x 24 root root 4.0K Oct  2 08:33 ..
>>> -rw-r--r--  1 root root 2.1M Nov 17 00:02 dfix-badip-1206.log
>>> -rw-r--r--  1 root root    0 Nov 17 00:02 dfix-badip-1206.txt
>>> -rw-r--r--  1 root root   14 Nov 17 00:02 dfix-errorip-1206.txt
>>> -rw-r--r--  1 root root 2.7M Nov 17 00:02 dfix-goodip-1206.log
>>> -rw-r--r--  1 root root 4.1K Nov 17 00:02 dfix-goodip-1206.txt
>>> ?---------  ? ?    ?       ?            ? dfix-mustblock-1206.txt
>>> drwxrwxrwt  2 root root 4.0K Oct  2 08:34 .font-unix
>>> lrwxrwxrwx  1 root root   22 Mar 14  2009 mysql.sock ->
>>> /home/mysql/mysql.sock
>>> -rw-r--r--  1 root root    0 Nov 17 00:00 .swatch.lock
>>> drwxr-xr-x  2 root root 4.0K Oct 15 04:25 .webmin
>>> -r--r--r--  1 root root  279 Nov 12 21:01 yum.update
>>> [root at vnyxbo ticket]# df -h /tmp
>>> Filesystem            Size  Used Avail Use% Mounted on
>>> /dev/mapper/VolGroup00-tmp
>>>                       2.0G   72M  1.8G   4% /tmp
>>
>> Is the only option to reboot?
>>
> what does /etc/fstab read?
>   cat /etc/fstab | grep tmp
>   /dev/mapper/VolGroup00-tmp /tmp  ext3  noexec,nosuid,rw  1 2
> 

Not much different...

> [root at vnyxbo logs]# cat /etc/fstab|grep /tmp
> /dev/VolGroup00/tmp     /tmp                    ext3    noexec,nosuid,rw        1 2