[coreboot] questions about "QEMU Build Tutorial"
sync.jma at gmail.com
Fri May 2 18:21:52 CEST 2008
On Fri, May 2, 2008 at 11:12 PM, Myles Watson <mylesgw at gmail.com> wrote:
> > http://www.coreboot.org/QEMU_Build_Tutorial
> I don't know how this tutorial is supposed to work. Disk.img is supposed to
> be the whole hard drive, and you're treating it like a partition with
> mkfs.ext2. Here is something that should work:
> 1. Create the raw image like it says in the tutorial
> 2. Boot QEMU with a rescue disk from your favorite OS
> 3. Run fdisk and create a single partition on the drive that takes up the
> whole drive
> 4. Quit and write the partition to disk
> 5. Run mkfs.ext2fs on that partition
> 6. Exit QEMU
> You now have a partitioned disk with an ext2 fs. You could have put in a
> second partition for swap while you were there, but lets keep this simple.
> Now you have a hard drive image with a partition and you need to mount that
> partition to copy the files you want.
> mount -o loop,skip=32256 disk.img /mnt/rootfs
> (Thanks to http://wiki.archlinux.org/index.php/Qemu)
> and continue the tutorial.
> To restate: The problem is that when you run mkfs.ext2 on the disk.img,
> you're formatting it as if it were a partition, not a drive, and you don't
> have a valid partition table.
> There are many other ways to get this done, I think this is the easiest. If
> you can't get it to work you might also try:
> 1. Stealing the first 32256 bytes (63 * 512B sectors) from a known good
> image of the same size and concatenating it to the front of a partition like
> you made in the tutorial (- 63 sectors)
> Hope that helps,
Thanks, Myles. This wiki maybe need update, :) I supposed that wiki
page to be the official coreboot guide.
I just installed debian-4.0r2 using qemu-0.9.1(and bochs pc-bios), it
Another try will be taken for coreboot tomorrow, I would like to write
a new doc about "QEMU Build Tutorial".
> PS The page I referenced above has other advanced tips too.
Nice page, thanks!
FIXME if it is wrong.
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