Re: [PLUG] How best to replace old drive with new drive

[JP Vossen <jp@jpsdomain.org>]

> Date: Sat, 20 Oct 2007 10:25:20 -0400
> From: Mike Leone <turgon@mike-leone.com>
> Subject: Re: [PLUG] How best to replace old drive with new drive
>
> jondz wrote:
>
>>> I can't seem to chroot. I actually Ghosted the drive; made it the sole
>>> HD in the system; booted with Knoppix; did a "mount /dev/hda1
>>> /mnt/hda1"; then tried "chroot /mnt/hda1".
>>>
>>> It told me it couldn't find /bin/sh. And so I couldn't go forward
>>> from there.
>>>
>>> So what am I missing, that I can't install grub?

Almost everything...  The error message is quite clear, if perhaps a 
tad--concise.  :-)  It's telling you that once you've created the new 
"root" you don't have any shell (or other tools).


>> (I'm assuming you partitioned your original disk into many
>> filesystems)
>
> Yep; /dev/hda1 is /boot.
>
> /dev/hda1  /boot
> /dev/hda5  /
> /dev/hda6  /home
> /dev/hda7  /usr
> /dev/hda8  /var
> /dev/hda10 swap

There's your problem.  Once you chroot into /mnt/hda1 **all** you have 
is what's in "/boot" which does not include trivial things like /bin/sh. 
 I've bitten myself with that more than once.  That's why I recommended 
you make and mount like:
    cd /mnt
    mkdir new
    mount -t ext3 /dev/sda2 /mnt/new
    mkdir new/boot
    mkdir new/home
    mount -t ext3 /dev/sda1 /mnt/new/boot
    mount -t ext3 /dev/sda5 /mnt/new/home

My way is admittedly tedious, but once you "chroot /mnt/new" you have an 
entire standard file system, including /boot, /bin, etc.  Depending on 
your copy you may be missing /dev and/or /proc, but for this purpose I 
don't *think* that matters.  If you have problems, use the posted fix 
for that.

Make sense?
JP
----------------------------|:::======|-------------------------------
JP Vossen, CISSP            |:::======|        jp{at}jpsdomain{dot}org
My Account, My Opinions     |=========|      http://www.jpsdomain.org/
----------------------------|=========|-------------------------------
Microsoft has single-handedly nullified Moore's Law.
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