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Old 06-02-2013, 11:51 AM   #1
DaRkBoDoM
Member
 
Registered: Oct 2007
Location: Italy
Distribution: Ubuntu
Posts: 73

Rep: Reputation: 17
I can no longer install grub :(


Hi there!

I've recently replaced the hard drives of the PC with brand new ones. After replacing, i've tried to reinstall grub, but the installation fails with the message:
Code:
# grub-install /dev/sda
Path `/boot/grub' is not readable by GRUB on boot. Installation is impossible. Aborting.
I've then debugged the problem using (full output included, error is at the end):
Code:
# grub-probe -v -t fs /boot/grub
grub-probe: info: `/dev/fd0' looks like a floppy drive, skipping.
grub-probe: info: changing current directory to /dev.
grub-probe: info: changing current directory to extras.
grub-probe: info: changing current directory to snd.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to cpu.
grub-probe: info: changing current directory to disk.
grub-probe: info: changing current directory to by-label.
grub-probe: info: changing current directory to by-uuid.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to by-id.
grub-probe: info: changing current directory to /dev.
grub-probe: info: changing current directory to extras.
grub-probe: info: changing current directory to snd.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to cpu.
grub-probe: info: Looking for /dev/sda1.
grub-probe: info: /dev/sda is a parent of /dev/sda1.
grub-probe: info: /dev/sda1 starts from 2048.
grub-probe: info: opening the device hd0.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Found array md/md7.
grub-probe: info: Inserting hd0 into md/md7 (mdraid09)
.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md7.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md7.
grub-probe: info: Scanning for ldm devices on disk md/md7.
grub-probe: info: scanning md/md7 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md7.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Found array md/md0.
grub-probe: info: Inserting md/md7 into md/md0 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md0.
grub-probe: info: Scanning for mdraid1x devices on disk md/md0.
grub-probe: info: Scanning for mdraid09 devices on disk md/md0.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md0.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md0.
grub-probe: info: Scanning for ldm devices on disk md/md0.
grub-probe: info: scanning md/md0 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md0.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Found array md/md1.
grub-probe: info: Inserting md/md7 into md/md1 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md1.
grub-probe: info: Scanning for mdraid1x devices on disk md/md1.
grub-probe: info: Scanning for mdraid09 devices on disk md/md1.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md1.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md1.
grub-probe: info: Scanning for ldm devices on disk md/md1.
grub-probe: info: scanning md/md1 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md1.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Found array md/md2.
grub-probe: info: Inserting md/md7 into md/md2 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md2.
grub-probe: info: Scanning for mdraid1x devices on disk md/md2.
grub-probe: info: Scanning for mdraid09 devices on disk md/md2.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md2.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md2.
grub-probe: info: Scanning for ldm devices on disk md/md2.
grub-probe: info: scanning md/md2 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md2.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Found array md/md3.
grub-probe: info: Inserting md/md7 into md/md3 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md3.
grub-probe: info: Scanning for mdraid1x devices on disk md/md3.
grub-probe: info: Scanning for mdraid09 devices on disk md/md3.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md3.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md3.
grub-probe: info: Scanning for ldm devices on disk md/md3.
grub-probe: info: scanning md/md3 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md3.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Found array md/md4.
grub-probe: info: Inserting md/md7 into md/md4 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md4.
grub-probe: info: Scanning for mdraid1x devices on disk md/md4.
grub-probe: info: Scanning for mdraid09 devices on disk md/md4.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md4.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md4.
grub-probe: info: Scanning for ldm devices on disk md/md4.
grub-probe: info: scanning md/md4 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md4.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk md/md7.
grub-probe: info: Scanning for mdraid1x devices on disk md/md7.
grub-probe: info: Scanning for mdraid09 devices on disk md/md7.
grub-probe: info: Scanning for mdraid09_be devices on disk md/md7.
grub-probe: info: Scanning for dmraid_nv devices on disk md/md7.
grub-probe: info: Scanning for ldm devices on disk md/md7.
grub-probe: info: scanning md/md7 for LDM.
grub-probe: info: no LDM signature found.
grub-probe: info: Scanning for lvm devices on disk md/md7.
grub-probe: info: no LVM signature found.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md0 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md1 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md2 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md3 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md4 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md7 (mdraid09)
.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: Partition 0 starts from 2048.
grub-probe: info: Looking for /dev/sdb1.
grub-probe: info: /dev/sdb is a parent of /dev/sdb1.
grub-probe: info: /dev/sdb1 starts from 2048.
grub-probe: info: opening the device hd1.
grub-probe: info: the size of hd1 is 1953525168.
grub-probe: info: the size of hd1 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md7 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md0 (mdraid09)
.
grub-probe: info: the size of hd1 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md1 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md2 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md3 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md4 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md7 (mdraid09)
.
grub-probe: info: Partition 0 starts from 2048.
grub-probe: info: changing current directory to /dev.
grub-probe: info: changing current directory to extras.
grub-probe: info: changing current directory to snd.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to cpu.
grub-probe: info: changing current directory to disk.
grub-probe: info: changing current directory to by-label.
grub-probe: info: changing current directory to by-uuid.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to by-id.
grub-probe: info: changing current directory to /dev.
grub-probe: info: changing current directory to extras.
grub-probe: info: changing current directory to snd.
grub-probe: info: changing current directory to by-path.
grub-probe: info: changing current directory to cpu.
grub-probe: info: Looking for /dev/sda1.
grub-probe: info: /dev/sda is a parent of /dev/sda1.
grub-probe: info: /dev/sda1 starts from 2048.
grub-probe: info: opening the device hd0.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: the size of hd0 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md7 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md0 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md1 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md2 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md3 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Scanning for mdraid1x devices on disk hd0.
grub-probe: info: Scanning for mdraid09 devices on disk hd0.
grub-probe: info: Inserting hd0 into md/md4 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd0.
grub-probe: info: Partition 0 starts from 2048.
grub-probe: info: Looking for /dev/sdb1.
grub-probe: info: /dev/sdb is a parent of /dev/sdb1.
grub-probe: info: /dev/sdb1 starts from 2048.
grub-probe: info: opening the device hd1.
grub-probe: info: the size of hd1 is 1953525168.
grub-probe: info: the size of hd1 is 1953525168.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md7 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md1 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md2 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md3 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md4 (mdraid09)
.
grub-probe: info: Scanning for DISKFILTER devices on disk hd1.
grub-probe: info: Scanning for mdraid1x devices on disk hd1.
grub-probe: info: Scanning for mdraid09 devices on disk hd1.
grub-probe: info: Inserting hd1 into md/md7 (mdraid09)
.
grub-probe: info: Partition 0 starts from 2048.
grub-probe: info: opening mduuid/fecdf8a4653b7d09b20c7ea928908fe9.
grub-probe: error: unknown filesystem.
fecdf8a4653b7d09b20c7ea928908fe9 is the UUID of the RAID array /dev/md0, where my root partition resides.
The root partition is ext4.
Grub version is 2.00-13ubuntu3 and it worked like a charm until yesterday.

This is driving me crazy... may you help me, please?
 
Old 06-02-2013, 02:08 PM   #2
tshikose
Member
 
Registered: Apr 2010
Location: Kinshasa, Democratic Republic of Congo
Distribution: RHEL, Fedora, CentOS
Posts: 134

Rep: Reputation: 30
Hi,

If I remember correctly, grub cannot be installed on a RAID disk.
Only simple ones, such as extX (or RAID1 ???).

I hope it helps.
 
Old 06-02-2013, 05:21 PM   #3
DaRkBoDoM
Member
 
Registered: Oct 2007
Location: Italy
Distribution: Ubuntu
Posts: 73

Original Poster
Rep: Reputation: 17
I've solved it. Thank you anyway.

For anyone reading this post in future: it was a problem with raid partition at the end of the disk with superblock version 0.9 being confused by grub-probe for a whole-disk raid array.
 
  


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