On Sat, 2008-03-01 at 09:25 +0000, John Austin wrote: > On Fri, 2008-02-29 at 20:02 -0800, Markus Kesaromous wrote: > > Since my bios does not support booting from a USB stick, > > how can I modify my grub, so that it will boot from memory stick. > > My main internal (laptop) drive has 1indows in partition 1 > > and Fedora 7 in partition 2. Grub lets me select either linux > > or windows. But any external bootable device connected > > to the laptop either via usb or sata (cardbus) is totally invisible > > to bios and to grub. > > So, my question to the list is: What should be added to grub > > menus so that it can boot from external device? > > Could someone show a grub entry example of booting > > an external device that is invisible to BIOS? > > What about the OS on the external disk that we are trying to boot? > > Is there something that needs to be done to it so that the id > > it assigns to itself is same as that assigned to it by grub? > > (i.e such as hd0 or hd1, ...etc). > > > > Thanx for your help. > > Hi > > I haven't actually done this ... only something similar !!!! > > 1. Make sure your USB stick partitions are labelled uniquely, just makes > life easier. (/etc/fstab on the stick must match) /root_stick say for > root partition > > 2. Copy the kernel and initrd from you stick to your F7 /boot directory > - obviously check the stick file names are unique. vmlinuz_stick, > initrd_stick say. > > 3. The "F7" grub entry for the stick can then look something like > > root (hdx,y) The same as your F7 entry > kernel /boot/vmlinuz_stick ro root=LABEL=/root_stick > initrd /boot/initrd_stick > > Alternatives ... > Using F8 I have managed to boot an external "BIOS invisible" USB stick > 1 grub on a CD > 2 syslinux on a second USB stick > Just tried the above - works OK ! John
