Il 18/10/2012 17:36, Claudio ML ha scritto:

Hello all,

After DVD update of OpenSuSE to version 12.2, i am facing a strange behaviour. At the first boot, grub says to me "Unable to mount partition". After some work, i have sucessifully booted the system from grub command line, with this commands:

find /boot/grub/stage1 setup (hd0,0) kernel = /boot/vmlinuz-3.4.11-2.16-desktop initrd = /boot/initrd-3.4.11-2.16-desktop boot

After that, i have noticied a strange thing: the root system is mounted from /dev/md127 (previously is /dev/md1, and yes, is a software raid).

And, more strange problem, i have tryied to reinstall grub correctly with yast. So, i have selected Bootloader from yast (it warns me "Because of the partitioning, the boot loader cannot be installed properly."), and i select "Start from Scratch". Then, i select "Propose New Configuration". One configuration is the following:

Section Name Kernel-3.4.11-2.16-desktop▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ ┌Section Settings──────────────────────────────────────────────────────┐ │ │ │ [ ] Do not verify Filesystem before Booting [ ] Enable SELinux │ │ Kernel Image [Browse...] │ │ /boot/vmlinuz-3.4.11-2.16-desktop▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ │ │ Initial RAM Disk [Browse...] │ │ /boot/initrd-3.4.11-2.16-desktop▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ │ │ Root Device Vga Mode │ │ ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒âText Mode▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒â │ │ Optional Kernel Command Line Parameter │ │ resume=/dev/md1 splash=silent quiet showopts▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ │ │ │ └──────────────────────────────────────────────────────────────────────┘

Notice the Root Device empty. In the list i have:

/dev/md2 /dev/sda1 /dev/sda2 /dev/sda3 /dev/sdb1 /dev/sdb2 /dev/sdb3 tmpfs

But, the root device is /dev/md0, or i am wrong?

Anyway, i accept that config, and when tryies to install it, i have that error:

GNU GRUB version 0.97 (640K lower / 3072K upper memory) [ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists the possi completions of a device/filename. ] grub> setup --stage2=/boot/grub/stage2 --force-lba (hd0) (hd0) Error 17: Cannot mount selected partition grub> quit

Then if i say to Yast to not retry the bootloader configuration, i found this on my /boot/grub/menu.lst:

default 0 timeout 8 gfxmenu ##YaST - activate

###Don't change this comment - YaST2 identifier: Original name: linux### title openSUSE 12.2 kernel resume=/dev/md1 splash=silent quiet showopts vga=normal initrd

###Don't change this comment - YaST2 identifier: Original name: failsafe### title Failsafe -- openSUSE 12.2 kernel showopts apm=off noresume edd=off powersaved=off nohz=off highres=off processor.max_cstate=1 nomodeset x11failsafe vga=normal initrd

###Don't change this comment - YaST2 identifier: Original name: linux### title Kernel-3.4.11-2.16-desktop kernel resume=/dev/md1 splash=silent quiet showopts vga=normal initrd

Is missing of some parts (kernel name, initrd name etc).... What's up?

Btw, if i try to change the file /etc/grub.conf from:

setup --stage2=/boot/grub/stage2 --force-lba (hd0) (hd0) quit

to:

setup --stage2=/boot/grub/stage2 --force-lba (hd0,0) (hd0,0) quit

Then i manual re-install grub (grub-install), it seems to work:

GNU GRUB version 0.97 (640K lower / 3072K upper memory)

[ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists the possible completions of a device/filename. ] grub> setup --stage2=/boot/grub/stage2 --force-lba (hd0,0) (hd0,0) Checking if "/boot/grub/stage1" exists... yes Checking if "/boot/grub/stage2" exists... yes Checking if "/boot/grub/e2fs_stage1_5" exists... yes Running "embed /boot/grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal) Running "embed /boot/grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal) Running "install --force-lba --stage2=/boot/grub/stage2 /boot/grub/stage1 (hd0,0) /boot/grub/stage2 p /boot/grub/menu.lst "... succeeded Done. grub> quit

Now, my problem is: how i can have a working grub configuration at boot? And, why my root is now /dev/md127?

Any help is welcome, i have now no idea to how to resolve it....

Cordially,

Claudio Prono.

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