grub problems

[thw-zz]

Hi Darik,

i have a few grub-related issues. In all cases i encountered these problems on a fresh
install via amd64 live-cd to an empty disk.

1. Following this howto, i never ever got grub-pc installed. Not on 11.04, nor on 11.10. In step 5.6 when executing

   # apt-get install --no-install-recommends  linux-image linux-image-generic linux-headers-generic 
   

   i get

   The following extra packages will be installed:
     linux-firmware linux-headers-3.0.0-12 linux-headers-3.0.0-12-generic linux-image-3.0.0-12-generic  wireless-crda
   Suggested packages:
     fdutils linux-doc-3.0.0 linux-source-3.0.0 linux-tools
   Recommended packages:
     grub-pc grub-efi-amd64 grub-efi-ia32 grub lilo
   The following NEW packages will be installed:
     linux-firmware linux-headers-3.0.0-12 linux-headers-3.0.0-12-generic linux-headers-generic  linux-image linux-image-3.0.0-12-generic linux-image-generic wireless-crda
   0 upgraded, 8 newly installed, 0 to remove and 0 not upgraded.
   

   You see, grub-pc is recommended but ignored due to the switch.

   In step 6.1 grub-probe is succesful but /boot/grub is missing and also grub-install and update-grub

   # grub-probe /
   zfs
   
   # ls /boot/grub/zfs*
   ls: cannot access /boot/grub/zfs*: No such file or directory
   
   # which update-grub
   # which grub-install
   #
   
   # dpkg -l | grep grub
   ii  grub-common                    1.99-12ubuntu5+zfs1~oneiric1       GRand Unified Bootloader (common files)
   

2. /etc/grub.d/10_linux: 68: xUNKNOWN (0x2fc12fc1): not found

   apt-get install grub-pc resolves the problem regarding /boot/grub and the missing tools

   # grub-probe /
   zfs
   
   # ls /boot/grub/zfs*
   /boot/grub/zfsinfo.mod /boot/grub/zfs.mod
   
   # which update-grub
   /usr/sbin/update-grub
   # which grub-install
   /usr/sbin/grub-install
   #
   

   but it throws an error message

   Creating config file /etc/default/grub with new version
   Installation finished. No error reported.
   Generating grub.cfg ...
   [: 68: missing ]
   /etc/grub.d/10_linux: 68: xUNKNOWN (0x2fc12fc1): not found
   Found linux image: /boot/vmlinuz-3.0.0-12-generic
   Found initrd image: /boot/initrd.img-3.0.0-12-generic
   done  
   

3. error: cannot find a GRUB drive for /dev/disk/by-id/ata-WDC_...CAWFxxxxxxx. Check your device.map.

   For the first time (i did numerous installations previous with 11.04 using /dev/sda) i used /dev/data/by-id/ addressing
   schema. /dev/disk/by-id/ has two entries for every disk/partition: an ata-* and a scsi-*. First, inspired by the howto, i used
   the scsi variant which worked until step 6.5

   # grub-install /dev/disk/by-id/scsi-SATA_WDC_WD2500AAJS-_WD-WCAWFxxxxxxx
   /usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/disk/by-id/scsi-SATA_WDC_WD2500AAJS-_WD-WCAWFxxxxxxx.  Check your device.map.
   

   I found that /boot/grub/device.map didnt exist and tried to fix this

   # cat /boot/grub/device.map
   cat: /boot/grub/device.map: No such file or directory
   
   # grub-mkdevicemap --no-floppy
   # cat /boot/grub/device.map
   (hd0)   /dev/disk/by-id/ata-WDC_WD2500AAJS-00V4A0_WD-WCAWFxxxxxxx
   

   Since grub-mkdevicemap only added the ata variant, i started over by erasing the hd and rebooting from live-cd
   using this id. I encountered all 3 issues.

   # grub-install /dev/disk/by-id/ata-WDC_WD2500AAJS-00V4A0_WD-WCAWFxxxxxxx
   /usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/disk/by-id/ata-WDC_WD2500AAJS-00V4A0_WD-WCAWFxxxxxxx.  Check your device.map.
   #
   # cat /boot/grub/device.map
   (hd0)   /dev/disk/by-id/ata-WDC_WD2500AAJS-00V4A0_WD-WCAWFxxxxxxx
   

   BUT (!!!!)

   # grub-install /dev/sda
   Installation finished. No error reported.
   

   After rebooting, the system is fully functional.

Best regards
Thomas

[nergdron]

I'm seeing the same problem trying to run update-grub from inside a chrooted env from the 11.10 live CD:

update-grub

Generating grub.cfg ...
[: 68: missing ]
/etc/grub.d/10_linux: 68: xUNKNOWN (0x2fc12fc1): not found
done

Looking at the code in /etc/grub.d/10_linux, it looks like the offending line is this:
LINUX_ROOT_STAT=stat -f --printf=%T / || true

That stat command returns "UNKNOWN (0x2fc12fc1)" on 11.10 for a zfs mount.

I don't see any similar lines in the upstream grub2 in 11.10, so I'm not sure what it's supposed to do (other than the obvious following stuff for btrfs).

Thankfully, it doesn't seem to affect setting up the grub.cfg, zfs entries.

[rlaager]

The issue with the "[: 68: missing ]" error is this line in /etc/grub.d/10_linux:
if [ "x${LINUX_ROOT_FS}" = xbtrfs || "x${LINUX_ROOT_STAT}" = xbtrfs ]; then

The fix is to change it to this:
if [ "x${LINUX_ROOT_FS}" = xbtrfs ] || [ "x${LINUX_ROOT_STAT}" = xbtrfs ]; then

[dajhorn]

I already fixed this in-tree as

if [ "x${LINUX_ROOT_FS}" = xbtrfs -o "x${LINUX_ROOT_STAT}" = xbtrfs ]; then

Let me double check whether I published it for all distro releases.

[rlaager]

Can this issue be closed?