2007/9/25, Mikkel L. Ellertson <mikkel@xxxxxxxxxxxxxxxx>: > antonio montagnani wrote: > > 2007/9/25, Mikkel L. Ellertson <mikkel@xxxxxxxxxxxxxxxx>: > >> One thing I forgot to mention - make sure you > >> change the setting for the splash screen as well. Otherwise grub > >> tries to load it from the wrong drive and errors out. (I forgot > >> once.) You then get the grub> prompt, and wounder why. > >> > > > > splashimage=(hd0,0)/grub/splash.xpm.gz > > > > is it correct??? > > > Yes. > >> You may also want to back up the mbr of your laptop hard drive > >> before running grub-install. If you goof, you can end up with a > >> system that will only boot with the USB drive installed. I use > >> something like "dd if=/dev/sda of=/root/save/sda.mbr count=1". > >> > > I want to install grub on my USB disk, in order to start up any laptop > > and in order not to srew my Vista system. > > I think that I have to issue > > > > grub-install /dev/sda > > > > where sda is my USB disk and after booting from my CD. > > > > tnx for patience. > Double check that. On my system, when you boot from a CD/DVD, the > laptop drive is /dev/sda and the USB drive is /dev/sdb. I forgot to > save your fdisk output, so I can not double check that. > > > from fdisk -l, I get: fdisk -l Disco /dev/sda: 160.0 GB, 160041885696 byte 255 heads, 63 sectors/track, 19457 cylinders Unità = cilindri di 16065 * 512 = 8225280 byte Dispositivo Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 19457 156183930 8e Linux LVM Disco /dev/sdb: 160.0 GB, 160041885696 byte 255 heads, 63 sectors/track, 19457 cylinders Unità = cilindri di 16065 * 512 = 8225280 byte Dispositivo Boot Start End Blocks Id System /dev/sdb1 1 1274 10233373+ 27 Sconosciuto /dev/sdb2 * 1275 10383 73162752 6 FAT16 /dev/sdb3 10383 19458 72892416 7 HPFS/NTFS a question is: why on your system is sda the internal HD and sdb the USB disk, while on my exactly the other way round??? -- Antonio Montagnani Skype : antoniomontag