[lfs-support] Boot Issues

Geoff Swan gswan3 at bigpond.net.au
Thu Sep 26 02:51:05 PDT 2013

If you are using an EFI boot system then you can boot using that for usb
as well as disc.
It requires the EFI partition, which is a vfat type (fat32 or fat16) fs,
and a couple of additional things installed (pciutils and efibootmgr).

On 26/09/2013 6:58 PM, Thomas de Roo wrote:
> Booting from USB is for most BIOSes only supported for FAT-filesystems. You probably need to do something with initramfs or initrd.
> Regards,
> Thomas
> -----Original Message-----
> From: lfs-support-bounces at linuxfromscratch.org [mailto:lfs-support-bounces at linuxfromscratch.org] On Behalf Of Casey Daniels
> Sent: donderdag 26 september 2013 06:23
> To: LFS Support List
> Subject: [lfs-support] Boot Issues
> I've followed the book word for word and now I'm having some booting 
> issues.  I've tried to boot off a USB Thumb Drive, an SD Card, and when 
> its running through the boot proccess it keeps telling me that there is 
> an unknown partition type, and therefore can't mount the root fs.
> I've redone the parition table on both media a few times, verifiy its 
> MS-DOS MBR type.  I've formarted the file system again and recopied 
> everything on there.  I've built the kernel with no modules, all inline, 
> and have just about everything you can think of marked.
> Interesting note, used to be able to grub-install /dev/sda from in side 
> the chroot, but now for some reason it won't let me do that, I get a 
> warning stating that /boot/grub won't be aviable at boot time so its 
> aborting.
> Thank You,
> Casey

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