When I plugged in an external drive to my laptop, the drive was displayed as a string consits random letters and numbers. Here is an example:
❯❯❯ df -Th | grep sdb /dev/sdb1 xfs 481M 26M 456M 6% /run/media/kenno/5428b182-c92e-466b-89d2-b5b31b80ba48
Though the drive worked perfectly fine, I think it’s ugly, and I wanted to properly give it a good name. Let’s call it externo.
But how to do this? You may not believe it, I forgot how to do this. In fact, I couldn’t rememer when the last time I had to (re)label a file system. Fear not,Google can come to the rescue!
First unmount the mounted-file system if it was mounted. In my case, I need to unmount the
❯❯❯ sudo umount /dev/sdb1
Next, I’m going to use the
xfs_admin command to label this XFS partition.
xfs_admin is provided by
xfsprogs package on Fedora (31).
Let’s pring out the current label using
❯❯❯ sudo xfs_admin -l /dev/sdb1 label = ""
Now, change the label to externo using
xfs_admin -L new_label command.
~ ❯❯❯ sudo xfs_admin -L externo /dev/sdb1 writing all SBs new label = "externo"
Next time this exernal drive is mounted, it should get the desired label as its name.
~ ❯❯❯ df -Th | grep sdb1 /dev/sdb1 xfs 481M 26M 456M 6% /run/media/kenno/externo
Two things I want to remind myself. If I can’t remember any of these flags, they are well documented in
man xfs_admin. The second thing is that the name of the USB or external drive is taken from the label of the filesystem!
This post is about XFS filesystem. For other types of filesystem, a different programs can be used instead. The “RenameUSBDrive” wiki page found in the below references covers many filesystems.