Disk images
Daniel Carrera
daniel.carrera at zmsl.com
Thu Apr 13 21:17:28 UTC 2006
Gary W. Swearingen wrote:
>>* Use 'dd' to copy the bootloader.
>
> Remember that the bootloader(s) are not all in the MBR.
I didn't know that. But surely this should work:
dd if=/dev/hda of=/dev/hdb count=1 bs=446 # copy boot loader in MBR
mount /dev/hda /mnt/source && mount /dev/hdb /mnt/dest
cp --archive /mnt/source/* /mnt/dest/
What am I missing?
> Seems problematical. And it sounds like you didn't give my previous
> message enough attention. Maybe I was unclear.
Perhaps I didn't understand...
> I gather from a very quick look at the "parted" manpage that it can be
> used non-interactively (instead of "fdisk") and can even be used to
> create filesystems (though it mentions ext2 but not ext3).
Ok. I'm sure that parted
> Anyway, maybe try this:
>
> Boot the "new" PC off some CD and run a script which does this:
> 1) zero first hd track, at least (probably unnecessary)
> dd if=/dev/zero of=/dev/hda bs=16k count=1
The first *track*? Why that much? That would include much more than the
MBR. Plus, it would include the partition table. What am I missing?
I'm willing to try anything you suggest. I'd just like to understand the
solution.
> 2) partition the hd (with "parted")
> 3) make filesystem(s) (with "parted", "mkfs", or whatever)
> 4) connect to OEM server and "untar" files into filesystem(s).
Ok. I'm sure this part can work.
> 5) Run bootloader creation software like grub or lilo.
Could you expand on this bit? I thought grub didn't need an additional
step (unlike lilo). With grub you just edit the .conf file and you're set.
> On a BSD OS, you'd avoid the historically problematical (and I suspect
> slower) "tar" and use "dump" and "restore", which probably have Linux
> versions, but tar should do the job.
I didn't know that dump was better than tar. I've always used tar.
> You might be able to fit a copy of the tarball on the CD and avoid
> the network bit. And make the script run at boot. Or use a second
> CD.
I could burn it onto a DVD and then it'd definitely fit.
> I've never done this.
:-)
This has been an interesting learning experience.
Cheers,
Daniel.
--
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