[bug #32426] Can not boot grub from MBR on ISO9660 filesystem

[КоренбергМарк]

Follow-up Comment #4, bug #32426 (project grub):

Well, I think You did not understand me...
I want GRUB to embed stage1 into first 512 bytes of .iso image in a way that
it loads core.img by sector numbers.

I know, that ISO image reserve many sectors at the beginning, so we can
overwrite first sector safely. Now, I use manual embedding:

cat /usr/lib/grub/i386-pc/boot.img core.img | dd of=iso.iso conv=notrunc

It works, but it's not true way of installing GRUB. I want:
1. to install GRUB using grub-setup
2. boot sector to refer to core.img stored somewhere in ISO image, and not
just after first sector.


Also, I understand why GRUB can not install to squashfs. squashfs does not
reserve any space where GRUB can be embedded, and squashfs is true read-only
FS.
ISO9660 have plenty of space to embed GRUB.


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