It was working, but not very well... When I gave up and tried to reboot, the partition was in an inconsistent state. I had to run fsck -f, and then the UUID was changed. Anyway, I was wrong. I was trying to change the UUID of a vmware virtual disk, and this operation made no difference. Thanks, Guillermo Leira > -----Mensaje original----- > De: arch-general-bounces@xxxxxxxxxxxxx [mailto:arch-general- > bounces@xxxxxxxxxxxxx] En nombre de Juan Diego > Enviado el: jueves, 12 de marzo de 2009 18:25 > Para: General Discusson about Arch Linux > Asunto: Re: [arch-general] Change UUID > > hi > I think you have to replay the udev events: > > run as root: > > udevadm trigger > > tell me if it works > > bye > > On Thu, Mar 12, 2009 at 11:11 PM, Guillermo Leira <gleira@xxxxxxxxxx> > wrote: > > Hello! > > > > I'm trying to change the UUID on a ext4 formatted partition of a > virtual > > machine disc. The machine is running under virtualbox, on Windows. > > > > I'm using "tune2fs /dev/sda3 -U random", or "tune2fs /dev/sda3 -U > UUID". I > > have booted from the arch install disk, the partition is not mounted. > > > > When I run this command, I only get this: > > > > [root@archiso /]# ls /dev/disk/by-uuid/ -l > > total 0 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 323cc148-ff48-4038-a2e7-9908896a58fd -> ../../sda2 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 36628cd2-0842-4be0-a631-12afbc48793d -> ../../sda3 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 93f768dc-9161-4387-a83d-231da5f193ef -> ../../sda1 > > [root@archiso /]# tune2fs /dev/sda3 -U 00f46b25-8c12-4254-8d45- > 13be848c3da1 > > tune2fs 1.41.4 (27-Jan-2009) > > [root@archiso /]# ls /dev/disk/by-uuid/ -l > > total 0 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 323cc148-ff48-4038-a2e7-9908896a58fd -> ../../sda2 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 36628cd2-0842-4be0-a631-12afbc48793d -> ../../sda3 > > lrwxrwxrwx 1 root root 10 2009-03-12 14:27 > > 93f768dc-9161-4387-a83d-231da5f193ef -> ../../sda1 > > [root@archiso /]# > > > > Tune2fs does not give any error, but the UUID does not change. > > > > Any ideas? > > > > Best Regards, > > > > Guillermo Leira > > > > > >