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November 22, 2017

Error: (30)Read-only file system: apache2

Filed under: Linux Related — Tags: , , — Syed Jahanzaib / Pinochio~:) @ 9:25 AM

Fix Read Only Error


OS Ubuntu 12.4 x86 / Server Edition

Getting error when restarting apache2 service ..

root@radius:~# service apache2 restart
* Restarting web server apache2 (30)Read-only file system: apache2: could not open error log file /var/log/apache2/error.log.
Unable to open logs
Action 'start' failed.
The Apache error log may have more information.


Could be many depend on related situation. Usually Linux puts your file system in read only when errors occur, especially errors with the disk or the file-system itself, errors like a wrong journal entry for example.

You better check your dmesg for disk related errors.

My personnel observations are these error comes specially on system which have busy mysql and it gets unexpected shutdown, or the system got reboot un unexpectedly. IT also occurs dueto bad or about to get faulty disk / Zaib


Run following command

sudo fsck.ext4 -f /dev/sda1

It will start running FSCK, It will ask you either to FIX or not, simply press Y to fix the entries …

e2fsck 1.42 (29-Nov-2011)
/dev/sda1: recovering journal
Pass 1: Checking inodes, blocks, and sizes
Deleted inode 6029328 has zero dtime. Fix<y>? yes

Pass 2: Checking directory structure

Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Free blocks count wrong for group #465 (25232, counted=25231).
Fix<y>? yes

Free blocks count wrong (40843516, counted=40843515).
Fix<y>? yes

Inode bitmap differences: -6029328
Fix<y>? yes

Free inodes count wrong for group #736 (8184, counted=8185).
Fix<y>? yes

Free inodes count wrong (10409101, counted=10409102).
Fix<y>? yes

/dev/sda1: *** FILE SYSTEM WAS MODIFIED ***
/dev/sda1: *** REBOOT LINUX ***
/dev/sda1: 68466/10477568 files (0.1% non-contiguous), 1045765/41889280 blocks

Once its done, it will ask you to reboot, simply reboot the system.

root@radius:~# shutdown -r now

After the system reboots, it may ask you to fix more , simply press Y to proceed.
once all done, hopefully the system will be booted in normal mode.


Note: If you want to force your root filesystem to remount as rw, you can do the following. (It works sometimes in rare cases.

mount -o remount,rw /

Syed Jahanzaib


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