[mdlug] Flakey hard drive

[R. Kannan]

Nevermind. I cheated the system by copying the new mtab from /etc to /<new_root_dir/etc/mtab and could get grub-install to update the MBR. 

Thanks to all those who helped.

-----Original Message-----
>From: "R. Kannan" <rkannan at peoplepc.com>
>Sent: Aug 19, 2007 8:53 PM
>To: mdlug at mdlug.org
>Subject: Re: [mdlug] Flakey hard drive
>
>Thanks. I used 'cp -a' and copied the 'partition boot record' of the windows partition using 'dd'. But after I cahnged /etc/fstab and /boot/grub/menu.lst and followed Car. T Miller's instructions on installing grub to MBR, I ran into a problem
>
>Boot from a Knoppix CD.
>su -
>mkdir /mnt/restore
>mount /dev/hda1 /mnt/restore
>mount /dev/hda2 /mnt/restore/boot
>mount -t proc proc /mnt/restore/proc
>mount -o bind /dev /mnt/restore/dev
>chroot /mnt/restore
>
>At this point, I enter a new shell and I find that the mount points are all screwed up and I see 'df -l' seems to indicate old partitions (Not the one in the updated /etc/fstab and not the ones as I mounted using the above instructions. But the one that was there in the old hdb drive. Since the boot is in a different partition, the following command did not work.
>
>grub-install /dev/hda
>
>I see that I have a /etc/mtab that reflects the 'old' fstab. This seems to be leftover from the last successful boot with the old drive. 
>
>How did chroot screw everything up this way? Is it looking at /etc/mtab for some reason? Should I unmount everything and try installing the grub in MBR?
>
>Thanks for any pointers.
>
>-----Original Message-----
>>From: Drew <drew4096 at gmail.com>
>>Sent: Aug 19, 2007 1:36 PM
>>To: "R. Kannan" <rkannan at peoplepc.com>, MDLUG's Main discussion list <mdlug at mdlug.org>, Brian Hurley <brian at detroitindustrial.org>, mdlug at mdlug.org
>>Subject: Re: [mdlug] Flakey hard drive
>>
>>At 11:28 AM 8/19/07, R. Kannan wrote:
>>>But I cannot use plain old 'cp' to copy partition boot record. Can 
>>>I? So it looks like I need to use 'dd'.
>>>
>>>But will there be an issue with using dd on partitions that are 
>>>different in size as long as the destination partition is bigger 
>>>than the source partition? For example, if I use
>>
>>     dd'ing from smaller to larger *should* work, but the extra space 
>>will be wasted/unavailable as a
>>result. Use cp -a, or better yet cp -av so as to monitor the progress.
>>
>>----
>>
>>- Drew.
>>
>
>
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