On 09/16/2010 04:02 AM, Joey Korkames wrote: > [UTF-8]Vladimir 'Æ-coder/phcoder' Serbinenko writes: > >> On 09/15/2010 08:55 PM, Joey Korkames wrote: >>> Colin Watson writes: >>> >>>> On Xen (I'm told), it's possible to assign disk images in the host to >>>> things that are named rather like partitions in the guest (e.g. >>>> /dev/sda1), but that don't have an associated disk (e.g. /dev/sda); >>>> indeed, the latter device is nonexistent. This confuses >>>> grub_util_biosdisk_get_grub_dev. >>>> >>>> There's really no other situation in which I think it's terribly >>>> plausible that you might have /dev/sda1 but not /dev/sda, so it >>>> seems to >>>> me that in this case we can reasonably treat the apparent >>>> "partition" as >>>> a disk in its own right. >>>> >>> >>> Can we make some of these 'decisions' switchable on the command line? >>> I perform a lot of block device redirections (Xen, iSCSI, nbd, etc) or >>> work from live cd's (where / is merely rootfs+unionfs with no disk, >>> but /boot is a mounted disk), and grub-setup raises fatal objections >>> that I would like to override when _I_ know what devnodes the >>> bootblocks and the filesystems belong on. >>> >> It looks like you confused grub-setup (called from grub-install) with >> grub-mkconfig (called from update-grub). Former accesses only to >> /boot/grub and it needs to know about /boot/grub in order to configure >> image correctly. > > Nope, I really do mean grub-setup. The situations I described also > confuses > grub-install and grub-mkconfig's sh functions, but I generate my own > configs so I don't use those. > I was looking at the grub-setup code and just saw a new option, > --skip-fs-probe . I'll try that for the livecd edge case and if that > doesn't fix my problems, then I'll try to get a detailed breakpoint > where grub-setup gets confused. > I've successfully installed GRUB from Ubuntu live CD both using Ubuntu version and trunk version with root on aufs and /boot being a mounted /dev/sda1 device. It doesn't seem to be any problem. IF problem persists for you please supply additional data including the output of sh -x grub-install --root-directory=.. /dev/sdXY > > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel >
-- Regards Vladimir 'φ-coder/phcoder' Serbinenko
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