Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-26 Thread Ldten K
On Wed, 8/26/15, Pascal Hambourg pas...@plouf.fr.eu.org wrote:

// Didn't you install a more recent version of GRUB (possibly from a new
// installation) at some time on that disk ?

That could be it. The drive originally had a working wheezy installation that 
booted
properly and worked just fine. I then decided to upgrade this working wheezy 
installation
to testing/stretch, just to see how it would go. It did not go too well, so I 
decided to revert 
back to wheezy by restoring the data from my backup drive. The /boot partition 
was restored 
by dd-ing the data from /boot partition of the working backup drive 
(/dev/sda1): 

   # dd if=/dev/sda1 of=/dev/sdb1 conv=sync,noerror

// Can you see the GRUB version which boots ?

When booting, GRUB immediately drops me into the grub rescue mode. I did not 
see any 
version number nor I found any way to check the version number from grub 
rescue mode.

Thanks



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-26 Thread Pascal Hambourg
Ldten K a écrit :
 On Tue, 8/25/15, Pascal Hambourg pas...@plouf.fr.eu.org wrote:
 
 What does  ls (hd0,msdos1)/grub/ show ? Just a few files
 and  directories or plenty of *.mod files?
 
 I have the drive disconnected at the moment but, as far as I remember, ls 
 (hd0,msdos1)/grub/
 shows all the files that are normally expected to be there.

That does not answer my question.

File location differs between versions of GRUB. As I previously wrote,
the version of GRUB up to Wheezy (1.99) installs *.mod files directly in
(/boot)/grub whereas the version since Jessie (2.02) installs *.mod
files in a subdirectory (/boot)/grub/platform.

If the GRUB core image (not stored on the /boot partition) which boots
searches files in (/boot)/grub/platform but the files are in in
(/boot)/grub/ or the other way around, then there is a version mismatch.

Didn't you install a more recent version of GRUB (possibly from a new
installation) at some time on that disk ? Can you see the GRUB version
which boots ?



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-26 Thread Brian
On Wed 26 Aug 2015 at 01:55:15 -0700, Ldten K wrote:

 On Wed, 8/26/15, Pascal Hambourg pas...@plouf.fr.eu.org wrote:
 
 // Didn't you install a more recent version of GRUB (possibly from a new
 // installation) at some time on that disk ?
 
 That could be it. The drive originally had a working wheezy installation that 
 booted
 properly and worked just fine. I then decided to upgrade this working wheezy 
 installation
 to testing/stretch, just to see how it would go. It did not go too well, so I 
 decided to revert 
 back to wheezy by restoring the data from my backup drive. The /boot 
 partition was restored 
 by dd-ing the data from /boot partition of the working backup drive 
 (/dev/sda1): 
 
# dd if=/dev/sda1 of=/dev/sdb1 conv=sync,noerror
 
 // Can you see the GRUB version which boots ?
 
 When booting, GRUB immediately drops me into the grub rescue mode. I did 
 not see any 
 version number nor I found any way to check the version number from grub 
 rescue mode.

I do not think there is a way of checking but the evidence for a version
mismatch between GRUB and its modules seems strong.

I would run a Wheezy installer image in rescue mode and reinstall GRUB
to the MBR of the disk.



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-25 Thread Pascal Hambourg
Ldten K a écrit :
 
 grub rescue ls (hd0,msdos1)/
 config-3.2.0-4-amd64  grub  initrd.img-3.2.0-4-amd64  lost+found  
 System.map-3.2.0-4-amd64  vmlinuz-3.2.0-4-amd64 
 
 grub rescue  set prefix=(hd0,msdos1)/grub
 grub rescue  insmod normal
 file '/grub/i386-pc/normal.mod not found

What does ls (hd0,msdos1)/grub/ show ? Just a few files and
directories or plenty of *.mod files ?



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-25 Thread Ldten K
On Tue, 8/25/15, Pascal Hambourg pas...@plouf.fr.eu.org wrote:

// What does  ls (hd0,msdos1)/grub/ show ? Just a few files
//  and  directories or plenty of *.mod files?

I have the drive disconnected at the moment but, as far as I remember, ls 
(hd0,msdos1)/grub/
shows all the files that are normally expected to be there.

The /boot partition of the problem drive was restored using dd:
# dd if=/dev/sda1 of=/dev/sdb1 conv=sync,noerror
where  /dev/sda1 is the /boot partion of the good working HD that boots properly
 /dev/sdb1 is the /boot partion of the HD that fails to boot and 
that I'm trying to get working

Thanks




 



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-24 Thread Brian
On Sun 23 Aug 2015 at 20:14:32 -0700, Ldten K wrote:

 2. In the grub rescue mode:
   grub rescue  set prefix=(hd0,msdos1)/grub
   grub rescue  insmod normal
   file '/grub/i386-pc/normal.mod not found
   grub rescue  insmod linux
   file '/grub/i386-pc/linux.mod not found
 
 Any ideas? Thanks

If the device and path for prefix is correct you should see a grub
directory in the output of

  ls ((hd0,msdos1)/

Do you?

It would be more usual for the prefix to be (hd0,msdos1)/boot/grub on a
Debian machine with a standard installation.



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-24 Thread Ldten K
On Mon, 8/24/15, Brian a...@cityscape.co.uk wrote:

// If the device and path for prefix is correct you should see a grub
// directory in the output of
// 
//   ls ((hd0,msdos1)/
// 
// Do you?

Yes.

grub rescue ls (hd0,msdos1)/
config-3.2.0-4-amd64  grub  initrd.img-3.2.0-4-amd64  lost+found  
System.map-3.2.0-4-amd64  vmlinuz-3.2.0-4-amd64 

grub rescue  set prefix=(hd0,msdos1)/grub
grub rescue  insmod normal
file '/grub/i386-pc/normal.mod not found
grub rescue  insmod (hd0,msdos1)/grub/normal.mod
file '/grub/i386-pc/gfxterm.mod not found// writing from memory, I 
think it was gfxterm.mod
grub rescue  insmod (hd0,msdos1)/grub/gfxterm.mod
file '/grub/i386-pc/video.mod not found

// It would be more usual for the prefix to be (hd0,msdos1)/boot/grub on a
// Debian machine with a standard installation.

(hd0,msdos1) is my boot partion, not /. The HD is partitioned as follows:
/dev/sda1   /boot partition
/dev/sda2   / partition
/dev/sda3   swap  partition

Thanks



Re: Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-24 Thread Pascal Hambourg
Ldten K a écrit :
 
 Am trying to restore my regular working HD from backup HD but booting
 from the restored HD results in file '/grub/i386-pc/normal.mod' not
 found error. This seems a bit odd since 1) my wheezy system is amd64

Indeed this seems odd, but not for that reason. i386-pc is just the
platform (PC BIOS), not the system software architecture. i386 and amd64
architectures both share the same i386-pc platform.

The oddness is that AFAIK, the GRUB version 1.99 from Wheezy does not
use the /grub/platform/ scheme yet but still puts *.mod files directly
into /grub.



Wheezy amd64 grub2 error: file '/grub/i386-pc/normal.mod' not found

2015-08-23 Thread Ldten K
Hi,

Am trying to restore my regular working HD from backup HD but booting from the 
restored HD results in file '/grub/i386-pc/normal.mod' not found error. This 
seems a bit odd since 1) my wheezy system is amd64 and 2) I can boot from my 
backup HD just fine. My regular working and backup HDs have the same size, the 
same partition structure and, at least in theory, the same data. I used dd to 
copy /boot partition data between my regular and backup HDs:

## backup /boot partition. Booting from the backup HD works fine.
# dd if=/dev/sda1 of=/dev/sdb1 conv=sync,noerror

What I tried:
1. Reinstall grub on the main HD (/dev/sdb, as the system is running off the 
backup HD which for now is /dev/sda). Did not help, the same file 
'/grub/i386-pc/normal.mod' not found error persists.
## /dev/sdb1 is /boot partiion
# mount /dev/sdb1 /mnt/1
# grub-install /dev/sdb --boot-directory=/mnt/1

2. In the grub rescue mode:
grub rescue  set prefix=(hd0,msdos1)/grub
grub rescue  insmod normal
file '/grub/i386-pc/normal.mod not found
grub rescue  insmod linux
file '/grub/i386-pc/linux.mod not found

Any ideas? Thanks


# aptitude show grub-pc
Package: grub-pc 
State: installed
Automatically installed: no
Multi-Arch: foreign
Version: 1.99-27+deb7u2

# uname -a
Linux tsr7 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u3 x86_64 GNU/Linux