On Sat, Aug 29, 2009 at 2:47 PM, jackson byers<byersjab@xxxxxxxxx> wrote: >> I have an old laptop that I use for testing new versions of Fedora - however >> although it will boot of a physical CD containing a LiveCD (say of F12 >> Alpha), it is old enough not to be able to boot off usb devices since the >> BIOS is not arranged to do so. So a usbkey that contains a LiveCD that works >> perfectly well on other machines won't play on this particular machine >> (Fijitsu-Siemens Amilo D 6800) > >> Can anyone point me to a reference to work around this by booting off say an >> altered grub stansa in the HD which then refers to a plugged in usbkey to >> continue loading the LiveCD files from the usbkey? Or something similar? > > Mike, > maybe my experience with booting from an external usb disk will help. > I also wasn't > "able to boot off usb devices since the BIOS is not arranged to do so" > [either that or I am too dense to properly fiddle with the BIOS]. > > So, what I did was copy the vmlinuz, initrd.img somewhere > onto my internal HDisks, specifically in my case on /dev/sdb1. > Here is my grub.conf stanza for f10 booting off of the 2nd partition > of my usbdisk, [label rootusb2] > > #24...68 -> 29..78 > title Fedora (2.6.27.29-170.2.78.fc10.i686)usb2new TEST bootf10usb2 vga=795 > root (hd1,0) #sdb1 > kernel /bootf10usb2/vmlinuz-2.6.27.29-170.2.78.fc10.i686 ro > root=UUID=8f24a787-132c-4dc8-9126-9d85292e349f quiet vga=795 > initrd /bootf10usb2/initrd-2.6.27.29-170.2.78.fc10.i686.img > > > I also did this recently with an f11 hdinstall into usb3. > > Detail: > my usb disk is seen as sdc when booted up into my my main f10 on sda1 > but when this bootf10usb2 boots it is seen as sda2, i.e, > disk order is reordered to usb=sda, hd1=sdb, hd2=sdc. > > from blkid run from my mainf10on sda1: > /dev/sdc2: LABEL="rootusb2" > UUID="8f24a787-132c-4dc8-9126-9d85292e349f" TYPE="ext3" > > > However, this does not affect the "root (hd1,0)" for sdb1 > ie that retains nonreorderd syntax, > even though when booted up f10usb2 sees sdb1 as sdc1. > > This solution is not perfect of course. > I can't just take this external usb as is > to another computer and have this f10usb2 boot up > because the kernel, initrd can't be found. > > HTH > Jack Try UNETBOOTIN, http://unetbootin.sourceforge.net/ -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
