What is uuid?

[camper365]

I have noticed that on my GRUB menu.lst, instead of a

root (hd0,4)
there is a

uuid 58f83c3c-6456-4d33-b2c6-2cdb9625521d
Why is that, what is uuid? I have noticed that if I use the command-line to boot grub, and I use root (hd0,4) it doesn't start usplash and it looks like the recovery mode.

[Mze]

Read up on it here (http://en.wikipedia.org/wiki/Uuid)

[sisco311]

I have noticed that on my GRUB menu.lst, instead of a

root (hd0,4)
there is a

uuid 58f83c3c-6456-4d33-b2c6-2cdb9625521d
Why is that, what is uuid?


community/UsingUUID
http://www.linux.com/feature/146951



I have noticed that if I use the command-line to boot grub, and I use root (hd0,4) it doesn't start usplash and it looks like the recovery mode.

you have to add "ro quiet splash" to the kernel line. ;)

i.e.

root (hd0,0)
kernel /boot/vmlinuz-blabla root=/dev/sda1 ro quiet splash
initrd /boot/initrd.gz
boot

[camper365]

thx