[SOLVED] How do I change the name of a mounted array?

[gene0915]

I just noticed something silly. A long time ago, I created my primary RAID array (defaulted to md0 for the name) and then I created a secondary array... to back the first one up to. My backup array somehow got the following name: bacup

Here is the pertinent line from MDADM.conf

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ARRAY /dev/md/bacup  metadata=1.2 UUID=616e8892:40d17945:ebd2fb3b:914293d8 name=server-pc:bacup

... and from fstab.conf

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/dev/md127 /mnt/backup ext4 defaults,nofail,discard 0 0

To correct my mistake, is it as simple as just changing the name from bacup to 'bacKup' in the mdadm.conf file and rebooting or do I need to do that AND something else? (as in, some grub/initrd/initramfs voodoo?!)

Yes, I could probably just try this out and reboot and see what happens but I still consider myself a newbie and I'm terrified of wrecking my backup array so just need some re-assurance.

Thanks

[catweazel]

To correct my mistake, is it as simple as just changing the name from bacup to 'bacKup' in the mdadm.conf file and rebooting or do

No.

https://askubuntu.com/questions/63980/h ... raid-array

[gene0915]

To correct my mistake, is it as simple as just changing the name from bacup to 'bacKup' in the mdadm.conf file and rebooting or do

No.

https://askubuntu.com/questions/63980/h ... raid-array

That link did the trick, thanks! Only problem I ran into was, I forgot I needed to unmount the array first.

For future travelers, here were the commands I carried out to correct my mdadm array:

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sudo umount /mnt/backup
sudo mdadm --stop /dev/md127
sudo mdadm --assemble /dev/md/backup --name=backup --update=name /dev/sdg /dev/sdl /dev/sdb /dev/sda (your drive letters will differ from mine!)
sudo mdadm -Db /dev/md/backup (paste the output from this command into your mdadm.conf file)
sudo update-initramfs -u

Reboot and done. md127 is now properly labeled as 'backup'

[catweazel]

That link did the trick, thanks!

You're most welcome.

Cheers.