You forgot to backup the MBR (Master Boot Record). You have a couple
of choices. If you mount the partition in Ubuntu you could chroot
into the mount point and then update-grub should fix the MBR. If the
original CF still has a valid MBR you could just dd it across.
Example:
dd if=/dev/sda of=/path/to/mbr.backup.img count=1 bs=446
then:
dd if=/path/to/mbr.backup.img of=/dev/sdb count=1 bs=446
Of course replace /dev/sda and /dev/sdb with the appropriate device
names. Also note that you are using the device, not a particular
partition like /dev/sdb1
Hth,
On Sat, Jul 9, 2011 at 4:01 PM, Norman Henderson <norm.aud...@gmail.com> wrote:
> Hi, sorry if this is a newbie issue, I've searched without success.
>
> I've been running Voyage 0.6.5 for a year without problems on an Alix
> 3d3 with a CF card. I have been making backups to an external HDD
> using "dd if=/dev/sda1 of={filename}.img bs=1M". A few weeks ago my CF
> card started corrupting data and has now died, there is apparently no
> recoverable data. I bought a new CF card and desperately want to get
> back a running system from my latest backup.
>
> The only other resource I have is a Windows 7 laptop, although I do
> have Ubuntu running on it in a VirtualBox VM (and I can also
> successfully boot the Voyage LiveCD in that VM). So, I used a tool
> "ImDisk" to mount the .img file in Windows, made it visible in
> VirtualBox as IDE Primary Master, and made my CF reader/writer visible
> as a USB HDD device. So far so good. Using Ubuntu, I was able to fdisk
> the CF to create a partition of the same size as before (the physical
> device appears to be slightly larger than the old one), marked it
> bootable, and used "dd" to restore the image. The parameters reported
> by fdisk were exactly the same as the old CF, I could mount it fine in
> the VM, and the contents appeared to be complete.
>
> Problem: I then installed the CF in my Alix board and although the
> BIOS recognizes it (reports the CF's manufacturer etc.) after POST I
> get "disk boot failure, insert system disk and press enter". I have no
> idea what I've missed...
>
> I do recall that when I originally built my system I didn't manage to
> create a bootable CF at that time either, working on an external
> system. I ended up booting the Alix board from a thumb drive with
> Voyage 0.6.5 Live and ran the complete install from there to the CF. I
> really don't want to do this again because it would mean losing all
> the software and installs that I've done over the past year - and I'm
> also now in Africa, restricted to slow / unreliable / expensive
> Internet.
>
> Suggestions?
>
> Thanks, Norm Henderson
>
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> Voyage-linux@list.voyage.hk
> http://list.voyage.hk/mailman/listinfo/voyage-linux
>
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