Cannot open dev/console

victorlin · 10-28-2008, 07:40 AM

Hi,

I am building a linux on USB disk. I compile linux kernel by myself. I have installed grub and linux-image , initrd-image and busybox into usb. I have boot successfully with qemu.

The screen shot

As you see I can boot under qemu. But when I think I did it... I boot it with real computer, I got error messages

Quote:

umount: devfs: not mounted
mount: unknown filesystem type 'devfs'
umount: devfs: not mounted
pivot_root: No such file or directory
/sbin/init: 432: cannot open dev/console: No such file
Kernel panic - not syncing: Attempted to kill init!

Why? What am I doing wrong? This is the configure of grub:

Code:

    default 0
    timeout 10

    title Victor’s USB Live Linux
    root (hd0,0)
    kernel /boot/linux.img-2.6.22.2
    initrd /boot/initrd.img-2.6.22.2

And I have created console and tty with mknod. I have no idea why it can't find dev/console.

Could someone help me? Thanks a lot.

Victor Lin.

cladisch · 10-29-2008, 03:34 AM

Quote:

Originally Posted by victorlin

Code:

mount: unknown filesystem type 'devfs'

Why? What am I doing wrong?

You are trying to use devfs, which was removed in 2.6.18.

You can either use udev (in which case you'd mount /dev as tmpfs and, of course, run udev), or you can use a static /dev (in which case you have to create the device nodes manually before booting that system).