** Description changed:
Hi, in my grub.cfg created with grub-mkconfig I have repeated lines like
this:
set root='(hd0,apple4)'
search --no-floppy --fs-uuid --set=root big-long-number-1000
I'm on PowerPC and the 'hd0' I think should be just 'hd' (the
openfirmware devalias).
Tracing this back through the code I find it comes from
prepare_grub_to_access_device (in grub-mkconfig_lib.in) which calls
grub-probe (and this is where the hd0 comes from). I haven't delved any
further than this yet (I'm very rusty at reading code). Obviously it
would be great to fix grub-probe for PowerPC, but there is an obvious
and easy solution in prepare_grub_to_access_device. Currently the code
is:
# If there's a filesystem UUID that GRUB is capable of identifying, use it;
# otherwise set root as per value in device.map.
echo "set root='`"${grub_probe}" --device "${device}" --target=drive`'"
if fs_uuid="`"${grub_probe}" --device "${device}" --target=fs_uuid 2>
/dev/null`" ; then
echo "search --no-floppy --fs-uuid --set=root ${fs_uuid}"
fi
- I think there should be an elseif in there. Currently is sets root
+ I think there should be an elseif in there. Currently it sets root
using the device map and then immediatly overrides it with the UUID. I
can't see why it should be done twice. It should be one or the other:
use the device map OR the UUID. This would also make grub.cfg files
shorter and easier to read.
If you need anymore info let me know! Thanks
lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04
dpkg -l | grep grub
ii grub-common 1.99-21ubuntu3.1 GRand Unified Bootloader (common files)
ii grub-ieee1275 1.99-21ubuntu3.1 GRand Unified Bootloader, version 2 (Open
Firmware version)
ii grub-ieee1275-bin 1.99-21ubuntu3.1 GRand Unified Bootloader, version 2
(Open Firmware binaries)
ii grub2-common 1.99-21ubuntu3.1 GRand Unified Bootloader (common files for
version 2)
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https://bugs.launchpad.net/bugs/1048763
Title:
grub-mkconfig/probe gives incorrect device name on PowerPC
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