cloud engineer
Here’s how to fix a duplicate UUID on a XFS file system.
mount -o rw,nouuid /dev/sda1 /data |
mount -o rw,nouuid /dev/sda1 /data
Mounting with nouuid will work, but not after a reboot.
To avoid a duplicate ID, run this command to generate a new UUID.
xfs_admin -U generate /dev/sda3 Clearing log and setting UUID writing all SBs new UUID = xxxxx-xxxx-xxxx-xxxxxxxxx |
xfs_admin -U generate /dev/sda3 Clearing log and setting UUID writing all SBs new UUID = xxxxx-xxxx-xxxx-xxxxxxxxx
Here’s a Perl script for removing duplicates in a file.
perl -ne 'print unless $dup{$_}++;' input_file > output_file |
perl -ne 'print unless $dup{$_}++;' input_file > output_file