re grub error 17

Hervé Fache Herve at lucidia.net
Fri Jan 23 11:47:37 UTC 2009


Hello Ray,

I think I see the problem. Can you confirm that:
* /dev/sda is your Windows disk, with one partition: /dev/sda1 (called
BKUP_MAN ???)
* /dev/sdb is your Kubuntu disk, with several partitions
* /dev/sdh is your backup disk, with one partition: /dev/sdh1 (called
BKUP_MAN-1)
* you do not have a backup of Kubuntu

As I see it:
* /dev/sdh (the full disk) is the backup of /dev/sda, including the boot
record, where grub is.
* grub looks for its startup files on /dev/sdb
* when you boot with the backup disk connected, the BIOS boots the backup
disk, with the broken grub

Or:
* the BIOS sees the backup disk (when present at boot) as the second hard
disk, and GRUB therefore looks for its files in the wrong place (/dev/sdh
instead of /dev/sdb).

One thing is sure: you'd be better off with grub on /dev/sdb, so all
Linux-related stuff remains together. You'd then have to tell your BIOS to
boot from your Linux disk instead of the Windows one. IOW, tell you BIOS to
boot from the slave disk on the primary controller. But this requires a bit
of fidling with grub on the command line, which is not for the faint of
heart!

Otherwise, tell your BIOS to not probe for USB disks if that is possible.

Of course I could be wrong!
Hervé

2009/1/22 Ray Burke <rayburke30 at hotmail.com>

>  Herve I am in K,
>
> I booted up with the k live cd, and once up then turned on the external usb
> disk drive
> and did a $df -h  and a $df /boot see below
> **********************************************************************
>  rayburke at rayburke-desktop:~$ df -h
> Filesystem            Size Used Avail Use% Mounted on
> /dev/sdb1              18G  7.6G  9.0G  46% /
> varrun                474M  160K  474M   1% /var/run
> varlock               474M     0  474M   0% /var/lock
> udev                  474M   88K  474M   1% /dev
> devshm                474M     0  474M   0% /dev/shm
> lrm                   474M   38M  437M   8%
> /lib/modules/2.6.24-16-generic/volatile
> /dev/sdb2              19G  6.2G   13G  34% /home
> /dev/sda1              75G   39G   36G  52% /media/BKUP MAN
> /dev/sdh1              75G   37G   38G  50% /media/BKUP MAN-1
> rayburke at rayburke-desktop:~$ df /boot
> Filesystem           1K-blocks Used Available Use% Mounted on
> /dev/sdb1             1 rayburke at rayburke-desktop:~$ df -h
> Filesystem            Size Used Avail Use% Mounted on
> /dev/sdb1              18G  7.6G  9.0G  46% /
> varrun                474M  160K  474M   1% /var/run
> varlock               474M     0  474M   0% /var/lock
> udev                  474M   88K  474M   1% /dev
> devshm                474M     0  474M   0% /dev/shm
> lrm                   474M   38M  437M   8%
> /lib/modules/2.6.24-16-generic/volatile
> /dev/sdb2              19G  6.2G   13G  34% /home
> /dev/sda1              75G   39G   36G  52% /media/BKUP MAN
> /dev/sdh1              75G   37G   38G  50% /media/BKUP MAN-1
> rayburke at rayburke-desktop:~$ df /boot
> Filesystem           1K-blocks Used Available Use% Mounted on
> /dev/sdb1             18034492   7909904   9397488  46% /
> rayburke at rayburke-desktop:~$
> 8034492   7909904   9397488  46% /
> rayburke at rayburke-desktop:~$
>
> *************************************************************************************
>
> so as you see the main xp pro is sda1 and the external usb is sdh1 and
> only have one boot on sdb1?????
> so await your advise
>
> ray
>
>
>
> ------------------------------
> Date: Wed, 21 Jan 2009 21:16:51 +0100
>
> Subject: Re: re grub error 17
> From: Herve at lucidia.net
> To: kubuntu-users at lists.ubuntu.com
>
> Hi Ray,
>
> 2009/1/21 Ray Burke <rayburke30 at hotmail.com>
>
>  Herve,
>
> I am sorry as kost of my questions on the forum go astray!!!!!
>
> No worries :-)
>
>
>
> when I boot from the backup disk it just continually says gub, but this was
> a
> clonned copy thru ghost 3 of the main xp pro??
>
> I s'pose ghost did not just copy the disk... I actually don't know this
> program. I use dd which is not very beautiful being command line and all
> that, but does exactly what's written on the tin :-)
>
>
>
> do I do this $ df /boot when in K and with just my xp pro drive and linux
> drive?????
>
> Sorry, you'd do this from the command line (Konsole) in Kubuntu. Sorry
> again for my use of command line, I actually don't know the graphical tools
> though I know they exist.
>
> To copy the disks, I'd boot from a LiveCD of Kubuntu, so none of the hard
> disks are being used, then I'd make a bit-for-bit copy of my disks to the
> backup; that's what dd does.
>
> For example, when you start from the LiveCD, your main hard disk maybe
> /dev/sdc and your backup disk /dev/sdb, do you'd copy like so:
> $ dd if=/dev/sdc of=/dev/sdb
>
> This means copy from input 'file' (if) /dev/sdc to output 'file' (of)
> /dev/sdb, and it preserves the boot record and partition table.
>
> You can also copy partitions the same way (after checking that destination
> >= source). For example:
> $ dd if=/dev/sda3 of=/dev/sdb4
>
> Good luck,
> Hervé
>
>
>
> ray
> ------------------------------
>
> Date: Wed, 21 Jan 2009 14:04:04 +0100
> Subject: Re: re grub error 17
> From: Herve at lucidia.net
> To: kubuntu-users at lists.ubuntu.com
>
> Hello Ray,
>
> Re-posting to the list in case it might help others... was sent to personal
> e-mail.
>
> I - Booting with the backup disks on
>
> If your system boots ok with the backups off and does not when they're on,
> then my guess is that you have two grubs:
> * one on the main hard drive (the one you want)
> * at least one on the backups (the one[s] you don't)
> and that your system boots by default from the backup. This, as you
> probably know, can be changed in the BIOS settings, under the boot section
> (its location depends on your BIOS).
>
> II - Error 17
>
> The reason why grub gives error 17 is due to the difference between the
> partition layout in the backup disk[s] and the original disk. For example,
> Linux's boot partition maybe on partition /dev/sda3 on the original disk and
> /dev/sda1 on the backup disk[s]. To find out your boot partition, type this:
>
> $ df /boot
>
> which gives me (/boot is not a separate partition on my laptop - yet):
> /dev/sda8             52506748   3838592  46000968   8% /
>
> I hope this can help a bit. Do not hesitate to ask again if I can be of
> help.
> Hervé
>
>
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