What is this setting?

edencraze · 06-14-2008, 07:41 PM

Can anyone please explain what this means...

root=UUID=27f14f43-0c94-46bc-a1a9-edde2a6936b3

This text has been extracted from grub.conf and usually I have seen this line like...

root = /dev/hda1 (or something like that)

in most tutorials.

Where did all this hex combination come from? What do they mean?

{BBI}Nexus{BBI} · 06-14-2008, 08:31 PM

Quote:

Originally Posted by edencraze

Can anyone please explain what this means...

root=UUID=27f14f43-0c94-46bc-a1a9-edde2a6936b3

This text has been extracted from grub.conf and usually I have seen this line like...

root = /dev/hda1 (or something like that)

in most tutorials.

Where did all this hex combination come from? What do they mean?

That is the Universally Unique IDentifyer number for that particular hardware (in this instance your harddrive). This is the method now used to register hardware to avoid name conflicts.

edencraze · 06-15-2008, 01:39 AM

I understand that Nexus... But how can I use a UUID to lookup the device name?
Or is there some method that I can use to decipher to device just by looking at the UUID?

colucix · 06-15-2008, 05:40 AM

Look at

Code:

ls -l /dev/disk/by-uuid/

and see which UUID links to the disk devices (partitions) in your system.

{BBI}Nexus{BBI} · 06-15-2008, 06:28 AM

Quote:

Originally Posted by edencraze

I understand that Nexus... But how can I use a UUID to lookup the device name?
Or is there some method that I can use to decipher to device just by looking at the UUID?

You could also look in your fstab file.

Quote:

cat /etc/fstab