APPLIES TO:
Linux OS – Version Oracle Linux 5.6 and later
Linux x86-64
Linux x86
GOAL
This note provides step-by-step instruction on how to recover the corrupted root filesystem.
SOLUTION
Booting up Oracle Linux server fails with corrupted the root filesystem:
[/sbin/fsck.ext3 (1) — /] fsck.ext3 -a /dev/VolGroup00/LogVol00
/dev/VolGroup00/LogVol00 contains a file system with errors, check forced.
/dev/VolGroup00/LogVol00: Inodes that were part of a corrupted orphan linked list found.
/dev/VolGroup00/LogVol00: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
(i.e., without -a or -p options)
[FAILED]
*** An error occurred during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
Give root password for maintenance
The error indicates the root filesystem is corrupted. And to recover the corrupted root filesystem, please follow the steps below:
1) Boot the system from the DVD or boot disc1 of the same major release as the system. Once the system has successfully booted from the ISO image and Oracle Linux boot screen will appear.
Type: “linux rescue” without the quotes, and hit enter at the prompt.
2)When prompted for language, and keyboard, provide the pertinent information for the system.
3)When prompted to enable the network devices on the system, select: No
4)Select: Skip when prompted to allow the rescue environment to mount Oracle Linux installation under /mnt/sysimage directory.
5)If not using LVM, execute fsck on the device which contains the filesystem:
e2fsck 1.41.12.14 (17-May-2014)
[…]
6)If using LVM, activate the volumes before running fsck.
PV /dev/sda1 VG VolGroup00 lvm2 [96.00 MB / 0 free]
Total: 1 [3.34 GB] / in use: 1 [3.34 GB] / in no VG: 0 [0 ]
sh-3.1# lvm vgscan
Reading all physical volumes. This may take a while…
Found volume group “VolGroup00” using metadata type lvm2
sh-3.1# lvm lvscan
INACTIVE ‘/dev/VolGroup00/LogVol00’ [3.34 GB] inherit
sh-3.1# lvm lvdisplay
— Logical volume —
LV Name /dev/VolGroup00/LogVol00
VG Name VolGroup00
LV UUID 335qTi-Ossg-32O5-yQC7-xNON-egdI-frj4et
LV Write Access read/write
LV Status NOT available
LV Size 3.34 GB
Current LE 107
Allocation inherit
Read ahead sectors 0
sh-3.1# lvm vgchange -ay
1 logical volume(s) in volume group “VolGroup00” now active
sh-3.1# sh-3.1# e2fsck -f -y /dev/VolGroup00/LogVol00
e2fsck 1.41.12.14 (17-May-2014)
[…]
7) Exit the rescue mode, remove the DVD or boot disc media, then boot the system normally.
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