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After power cut (un-proper shut down) there is something bad happened with my machine. Now when I start system it gives me this message in the beginning.
XFS (dm-0): Internal error XFS_WAIT_CORRUPTED at line 1600 of file fs/xfs/libxfs/xfs_alloc.c. Caller xfs_free_extent+0xf9/0x130 [xfs] XFS (dm-0): Failed to recover EFIs
With an ending error message :
... Mounting /sysroot... [ ***] A start job is running for /sysroot (3min 59s / 4min 31s)[240.527013] INFO: task mount:406 blocked for more than 120 seconds. [ 240.527056] "echo 0 > /proc/sys/kernel/hung_task_timeout+secs" disables this message." [FAILED] Failed to mount /sysroot. See 'systemctl status sysroot.mount' for more details. [DEPEND] Dependency failed for Initrd Root File System. [DEPEND] Dependency failed for Reload Configration from the Real Root. [ OK ] Stopped dracut pre-pivot and cleanup hook. [ OK ] Stopped target Initrd Default Target. [ OK ] Reached target Initrd File System. [ OK ] Stopped dracut mount hook. [ OK ] Stopped target Basic System. [ OK ] Stopped System Initialization. Starting Emergency Shell... Genrating "/run/initramfs/rdsosreport.txt" Entering emergancy mode. Exit the shell to continue. Type "journalctl" to view system logs. You might want to save "/run/initramfs/rdsosreport.txt" to usb stick or /boot after mounting them and attach it to a bug report. :/#
Solution :
In my case, this helped.
sudo xfs_repair -v -L /dev/dm-0
My node failed to boot after power outage and got the error “Failed to mount /sysroot” and entered into emergency mode.
Mount and unmount failed so just went ahead to run with -L option and that helped my node boot up again.
Reff :
https://unix.stackexchange.com/questions/337289/how-to-repair-centos-failed-to-mount-sysroot