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| -rw-r--r-- | docs/README.diskimage | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/docs/README.diskimage b/docs/README.diskimage new file mode 100644 index 000000000..67a0aad4f --- /dev/null +++ b/docs/README.diskimage @@ -0,0 +1,37 @@ +# Sample for i386 to create a 6MB disk-image + +# create an image file +dd if=/dev/zero bs=512 count=$((6*1024*1024/512)) of=img +# create a partition (optional) +echo -e "n\np\n1\n\nw\n" | \ + ~/src/busybox/busybox fdisk -C 16065 -H 255 -S 63 ./img +# as root, associate the image with a look-device: +# The offset of 512 comes from the the layout of the image. See +# ~/src/busybox/busybox fdisk -C 16065 -H 255 -S 63 -l ./img for the start +# block and multiply this with the block size (==512). +~/src/busybox/busybox losetup -o 512 /dev/loop/0 /path/to/the/img +# create some filesystem on it, for example ext2 +mkfs.ext2 -m0 -Lslash /dev/loop/0 +# mount it and copy your stuff to it +~/src/busybox/busybox mount -oloop,rw /dev/loop/0 /media/l0 +~/src/busybox/busybox mkdir -p /media/l0/boot/grub +~/src/busybox/busybox cp -a project_build_i386/root/boot/grub/stage? /media/l0/boot/grub/ +~/src/busybox/busybox cp -a project_build_i386/root/boot/bzImage /media/l0/boot/ +~/src/busybox/busybox cat > /media/l0/boot/grub/menu.lst <<EOF +title=GNU/Linux +root (hd0,0) +kernel /boot/bzImage +EOF +# finally unmount the dist and disassociate the loopdev +~/src/busybox/busybox umount /media/l0 +~/src/busybox/busybox losetup -d /dev/loop/0 +# now install grub from the chroot +~/src/busybox/busybox losetup /dev/loop/0 /path/to/the/img +project_build_i386/root/usr/sbin/grub --device-map=/dev/null +device (hd0) img +geometry (hd0) 16065 255 63 +root (hd0,0) +setup (hd0) +quit +# finally boot the thing +/opt/qemu-trunk_ggi-2.2.2/bin/qemu -snapshot -hda img -boot c |