Ubuntu - disk management behaviour

[Daniele Guerrieri]

Hi people,

have you ever noticed strange behaviours with grub2 and usb key?

I've got an acer ao5320h netbook, and
If, for example, the scsi disk is on /dev/sda, and root partition in
/dev/sda7, when i plug in a usb key the key is under /dev/sdb.

But if i boot from usb, the usb key becomes /dev/sda, and the first
disk becomes /dev/sdb.

So grub2, in which disk references are made of /dev/sd[xn] ,behaves weirdly.

So, does ubuntu rely on UUID or /dev/sdxn?


Thanks,
Daniele