В Mon, 20 Jul 2015 16:54:04 +0200 Jelle de Jong <jelledej...@powercraft.nl> пишет:
> On 20/07/15 16:29, Andrei Borzenkov wrote: > > On Mon, Jul 20, 2015 at 5:14 PM, Jelle de Jong > > <jelledej...@powercraft.nl> wrote: > >> > >> I simplified the config a bit for better debugging. It is one USB stick > >> now. > >> > >> /dev/sda is the debian system that I boot from and chroot and debootstrap. > >> > >> I do this process on the ML110G7, the resulting USB stick will boot on > >> Z600 system but not on the sytem that I created it on the ML110G7. > >> > > > > Just to be sure - did you try to boot on ML110G7 or on Z600 first? > > Just to exclude that booting once sets some flag on degraded MD raid > > that GRUB does not like? > > > >> I tested the same config without using mdadm and the sytem booted up > >> just fine, so something goes wrong with mdadm grub and/or the machine. > >> > >> http://paste.debian.net/284148/ > >> > > > > This looks pretty much fine as far as grub is concerned. Could you try > > in grub command line > > > > set debug=diskfilter > > ls > > > > I tried to boot in on the ML110G7 first and when it didn't work I put it > in the Z600. > > grub rescue> set debug=diskfilter > grub rescue> ls > (hd0) (hd0,msdos1) disk/diskfilter.c:135: Scanning for DISKFILTER > devices on disk hd0 > disk/diskfilter.c:135: Scanning for DISKFILTER devices on disk hd0 > Yes, diskfilter debugging needs some love. Do you know what superblock format is used? Could you dump superblock using "mdadm --examine /dev/sdb1" (or whatever device is)? If you have possibility to compile upstream grub, testing it would be definitely helpful. _______________________________________________ Help-grub mailing list Help-grub@gnu.org https://lists.gnu.org/mailman/listinfo/help-grub