[SOLVED] how to use UUID on fstab and grub

nicolasdiogo · 08-24-2011, 06:53 AM

hello

i would like to find out how to change my system so that it would use UUID/labels instead of the BUS locations (eg: /dev/sda1).

i did find a lot of bits - but not a proper article on how to do this.

could someone post a link or an explanation on how to do this?

thanks,

Nicolas

andrewthomas · 08-24-2011, 08:04 AM

Code:

blkid

as root will provide you with the corresponding UUID's for each device.

Then edit your /etc/fstab

changing the

Code:

/dev/sdXY

entries to

Code:

UUID=

and the uuid that was listed in the blkid command.

Then, if you are using grub2, you just have do

Code:

update-grub

If you are using legacy grub, then edit your /boot/grub/menu.lst:

changing

Code:

root=/dev/sdXY

to

Code:

root=/dev/disk/by-uuid/whatever-blkid-outputs-here

on your kernel line

nicolasdiogo · 08-24-2011, 10:36 AM

many thanks,

clear and concise.

fantastic..

andrewthomas · 08-24-2011, 02:46 PM

You're welcome.

Glad to be of help.

EDIT: You may also have to update your initramfs after you make the changes.

Code:

update-initramfs -u -k all