Hi Colin-- On 10/04/2010 01:21 PM, Colin Watson wrote: > On Sun, Oct 03, 2010 at 07:42:10PM -0400, Daniel Kahn Gillmor wrote: >> On 09/21/2010 06:51 AM, Colin Watson wrote: >>> Does the attached patch work? It's a partial resync with the main >>> version of grub-install, anticipating the next snapshot/release where >>> all the different grub-installs are merged into a single version. >> >> hrm, no, this doesn't work. i get: >> >>>> 0 attica:/usr/sbin# grub-install /dev/hda >>>> /usr/sbin/grub-install: 229: make_system_path_relative_to_its_root: not >>>> found >>>> 1 attica:/usr/sbin# > > Whoops, I forgot a piece. Try this one.
hrm. trying this one lets grub-install complete properly, but it leaves
me unable to boot smoothly (i get dropped into the grub rescue prompt,
and have to use this workaround):
set prefix=(hd,apple3)/
insmod normal
normal
I it looks to me like the prefix is stored very early in the created
grub image. So i took different variants of grub-install, generated the
grub image, and then looked at the strings in /boot/grub/grub.
the three versions are:
grub-install
(as shipped in grub-ieee1275 version 1.98+20100804-4)
grub-install.patched
(shipped version + this latest patch applied)
grub-install.dkg
(shipped version + --prefix='(hd,apple3)/' hard-coded on the
"$grub_mkimage" invocation line)
of these, only grub-install.dkg works for me to get all the way through
the boot process without manual intervention (obviously, my hard-coded
change won't work for every system, though).
So here's what strings reports about the prefix string in
/boot/grub/grub after running each variant:
r...@bigpuff:/usr/sbin# grub-install /dev/hda
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install'.
(hd0) /dev/disk/by-id/ata-ST940110A_3KW5HWVC
r...@bigpuff:/usr/sbin# strings /boot/grub/grub | head -2
D/boot/grub
|cH8N
r...@bigpuff:/usr/sbin# grub-install.dkg /dev/hda
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install.dkg'.
(hd0) /dev/disk/by-id/ata-ST940110A_3KW5HWVC
r...@bigpuff:/usr/sbin# strings /boot/grub/grub | head -2
D(hd,apple3)/
|cH8N
r...@bigpuff:/usr/sbin# grub-install.patched /dev/hda
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install.patched'.
(hd0) /dev/disk/by-id/ata-ST940110A_3KW5HWVC
r...@bigpuff:/usr/sbin# strings /boot/grub/grub | head -2
|cH8N
[9|~
r...@bigpuff:/usr/sbin#
I can give you shell access to a comparable machine if you'd like to
experiment. all these tests are done on up-to-date squeeze
installations, fwiw. I'm dkg on irc.oftc.net, if you want to chat
realtime about it.
thanks for looking into this,
--dkg
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