Xfs_check Read Failed Invalid Argument Centos 6
In this article I volition share stride by footstep tutorial to repair filesystem in rescue manner in RHEL/CentOS 7/8 Linux. It happens many fourth dimension that our file organization on the sectionalisation gets corrupted so equally a Linux Administrator we have to make sure that the file system is repaired bold it is in a state to be repaired). Only notwithstanding we must tru to repair file arrangement.
Now to repair file system we should unmount the partition to make sure no process is using the partitioning, this is simply possible for certain data partitions merely any system partition cannot be un-mounted unless yous are in rescue mode.
Also information technology is possible that your Linux node is non reachable so in such cases it becomes mandatory to boot into rescue mode and so perform repair of your file organisation.
And then let u.s. check how we can repair file system in rescue mode. I have verified these steps on RHEL/CentOS 7/8 environment, simply the snippets will be from CentOS viii.0 Linux node installed equally a Virtual Machine on Oracle Virtualbox.
Stride 1: Kicking into rescue fashion in CentOS/RHEL 7/8 Linux
You can employ Live DVD to boot into rescue fashion which you had used to install your RHEL/CentOS vii/8 Linux node. Since I have already explained these steps in another article, I will be very brief here:
Annotation:
Hither the output may differ depending upon your Linux environment, for example on CentOS you may meet "Install CentOS Linux 8.0.XXXX". You should concentrate on "Troubleshooting" TAB
Install Red Hat Enterprise Linux eight.0.0 Test this media & install Blood-red Hat Enterprise Linux 8.0.0 Troubleshooting <--- Select On the side by side screen you volition go below list of options
Install Cherry Lid Enterprise Linux 7.0 in basic graphics style Rescue a Carmine Hat Enterprise Linux system <--- Select Run a memory test Boot from local bulldoze Return to chief menu In the next screen press "3" to skip to beat out so that nosotros can manually mount required file arrangement
Step 2: Activate partitions (logical volume/raid)
This step tin can be optional if you practise not of raid devices or logical volumes.
HINT:
If you only accept partitions such every bit /dev/sda1, /dev/sdb1 etc then you lot can skip this step and directly go to Step 3: Repair filesystem in rescue mode
If using Software RAID then initialize raid assortment first
# mdadm --examine --scan # mdadm --assemble --scan
If using LVM, activate the volumes in order to scan them.
# vgchange -ay
Next you can list your logical volumes and volume grouping using
# lvs <-- To list logical volumes # vgs <-- To list book groups
Step iii: Repair filesystem in rescue mode
Now since we have our partitions and logical volumes in the rescue style and since nosotros have not mounted them, they are not in apply past system processes. So we tin can safely repair filesystem in rescue fashion at this stage.
HINT:
We will use -f for force check even if the filesystem is marked make clean and -5 to print verbose output with e2fsck
To repair ext4 filesystem (logical volumes)
We volition utilize e2fsck to repair ext4 filesystem sitting on superlative of logical volume
# e2fsck -fv /dev/mapper/<vg>-<lv> For example: check below image where nosotros repair logical volumes
# e2fsck -fv /dev/mapper/rhel-root
To repair ext4 filesystem (normal partition)
We volition again use e2fsck to repair ext4 filesystem sitting on summit of normal segmentation
# e2fsck -fv /dev/<sd device> For instance: check below image where we repair normal partition
# e2fsck -fv /dev/sda1
To repair software raid device
Nosotros will use e2fsck to repair ext4 filesystem sitting on top of raid device
For example: bank check below image where we repair software raid devices
# e2fsck -fv /dev/md0
To repair XFS Filesystem with xfs_repair
At present currently I don't take a XFS filesystem and so I cannot show yous the output of the steps to repair XFS filesystem. But beneath are the commands y'all tin can use to repair XFS filesystem in RHEL/CentOS vii/8 Linux environment.
# xfs_repair /dev/mapper/<vg>-<lv> or # xfs_repair /dev/<sd device> or # xfs_repair /dev/<dr. device>
Lastly subsequently y'all repair filesystem in rescue mode you lot can now exit the rescue mode and boot the organization normally. So, allow me know your suggestions and feedback using the annotate section.
Related Searches: Repair ext4 filesystem in Linux. How to repair xfs filesystem in RHEL/CentOS vii/8 Linux. How to repair filesystem in rescue style in red hat enterprise Linux or CentOS seven/8
References:
How to repair filesystem in rescue mode for RHEL/CentOS 7/eight Linux
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