On Sun, 2006-10-15 at 11:04 +0200, Andrea Mastellone wrote: > Jim Cornette wrote: > > Andrea Mastellone wrote: > > > >> > >> I tried booting FC5 DVD with "linux expert" at the prompt, but the usb > >> disk is not detected anyway... :( > > > > This link from the Fedora forum shows that it used to work. > > http://www.fedoraforum.org/forum/showthread.php?t=19896 > > > > See the information bobba99 posted since it is pretty detailed. > > > > Have you scrolled down the list in disk druid in order to make sure the > > /dev/sda devices are not showing? The usb devices used to be referred to > > as /dev/sdx entries versus /dev/hdx entries. > > > > Yes, and the usb disk was not present. Thank you, Jim, for kind > suggestions, anyway. > > However, I have solved the problem... in a strange fashion, but it > works. External disk box was connected by means of a cable with two usb > connectors to the computer (I guess that one connector is used only to > supply electrical power). While both the cables were attached, the > expert mode did not detect the disk. I then tried randomly to detach one > connector.. and, magically, the disk has been dtected in the expert mode > ! Evidently, the power requirement of the external disk is so low that > only one cable is sufficient (infacts it is a 2.5" notebook drive). > > Now, I am coping with other problem. I have obviously created by the > rescue cd a new initrd image with the usb storage drivers. It is GRUB > that does not work. When I try to boot from the USB disk, only the word > GRUB appears on the screen and the systems freezes, albeit I have told > the Fedora installer to install grub on /dev/sda (and not /dev/hda). > > So, can you suggest me a simple but good manual of grub ? I probably > have to reconfigure it, but I can do it from a working FC5 on hda... I > tryed to chroot to the FC6 on usb disk and launched grub-install > /dev/sda, but this is not the correct way :| > > Thanks in advance, > > Andrea > > > > -- > "Homo sum, nihil humani alienum a me puto." (Terenzio). > "Il vero io è quello che tu sei, non quello che hanno fatto di te." (P. > Coelho) > Hi Hi Maybe http://www.vigla.eclipse.co.uk/ but it is much easier than this - Update 10_8_2006 initrd_usb.gz has been created right at the end of a > > clean FC5 install to a USB disk in "linux expert" mode. > > After removing the FC5 DVD > > Cont/Alt/F2 > > chroot /mnt/sysimage /sbin/mkinitrd --preload=ehci-hcd --preload=ohci-hcd --preload=usb-storage \ --preload=scsi_mod --preload=sd_mod /boot/initrd_usb.gz \ 2.6.15-1.2054_FC5 > > This USB disk boots successfully on two machines with a bit of tweaking > > of grub interactively during the first boot and then changing grub.conf > > as required. Works with FC5 (with kde!!) on a 2G Kingston stick DataTraveler Elite read and write speeds of up to 24MB/sec. and 14MB/sec. Very usable !! John
