Hi, I'm having some trouble with (what I suspect) a custom core.img binary to work.
I have a 1Gb HDD image (created using bximage for Bochs), onto which I wish to install Grub 2. There is no OS present. I understand that a Grub installation consists of 3 parts: - The boot.img image, which occupies the first sector - The core.img image, which occupies space following the first sector up until the start of the next track - And the /boot/grub/ directory, in which the grub.cfg and other modules are located. ---------- First I use a boot.img image that from within my own Linux /boot/grub/ directory. Following this, I generate my core.img image using the following command: sudo grub-mkimage -v --format=i386-pc -o core.img -p\(hd0,msdos1\)/boot/grub ls ext2 part_msdos And to install them onto the final disk image, I use the following commands: - sudo dd if=boot.img of=/dev/loop0 bs=446 count=1 - sudo dd if=core.img of=/dev/loop0 bs=512 seek=1 ---------- The disk, starting from sector 2048 until the last, is formatted with an ext2 partition, and contains a boot/grub/ directory containing a grub.cfg (with a single bogus menuentry which doesn't load anything), and modules in the /boot/grub/i386-pc/ directory. Bochs successfully boots this installation of grub all the way to the grub> prompt. I understand that this behaviour indicates that grub.cfg was not found. Upon invoking `ls`, I apparently have no devices connected at all. I also observed that when booting a `grub-mkrescue` image from a slave drive, invoking `ls` displayed its own rescue drive, *and* the previously 'non-existant' primary disk drive, along with the ext2 partition. I verified that /boot/grub.cfg could indeed be accessed. >From this observation I would assume that my own core.img is missing some fundamental module or functionality. But which, and how would I amend this? ---------- I also conducted this exercise on a physical machine using a USB stick, and the exact same thing happened, so I can confirm that the problem is not with Bochs. _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
