Problems with booting from external USB drive

Hi all,

I have problems with booting Fedora Core 3 from an external USB drive.
Sometimes Fedora boots successfully, but mostly it fails with a kernel
panic. I have installed the Grub boot manager at MBR, and the kernel
release is 2.6.9-1.667. Here are the boot logs:

ata1: SATA ... irq 5
ata2: SATA ... irq 5
ata1: SATA port has no device.
scsi0 : ata_piix
ata2: SATA port has no device.
scs1 : ata_piix
Loading jbd.ko module
Loading ext3.ko module
Creating root device
Mounting root filesystem
mount: error 6 mounting ext3
mount: error 2 mounting none
Switching to a new root
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init

I couldn't localize the problem and i couldn't find out why the kernel
panic occurs. It seems to be arbitrary. Maybe I should build a new
kernel ?

Thanks for your advices,
Acubens

.

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