[geeks] SunOS disk image manipulations/reading

[Patrick Finnegan]

On Linux, you should be able to use losetup -P, assuming the right
partition table type was compiled into your kernel, to split up a raw
device image into partitions, like loop0p1, etc. From there, dd from the
loopback device into a new image or whatever you need to do.

Patrick Finnegan

On Tue, Mar 31, 2020, 16:07 JP Hindin <jplist2008 at kiwigeek.com> wrote:

> Good afternoon to you all in these bizarre times,
>
> I'll skip the long back story, which is both fascinating and utterly
> uninteresting at the same time, and skip to it - I have a couple of disk
> images made from Solaris9 disks from Sun Netra compactPCI boards that I
> need to be able to work with.
>
> Normally I'm working on Linux machines (I can feel Mouse's glare) so those
> are the kinds of tools I'd be hoping for, but I can be... flexible.
>
> Generally when *I* do this sort of thing I'll connect the Sun disk to a
> Linux machine, and walk through the partitions doing partition-level
> images,
>         dd if=/dev/sdX2 of=sunXYZ_home.img bs=1M
>         dd if=/dev/sdX3 of=sunXYZ_var.img bs=1M
> Which I can then work with later, if necessary, with Linux's VFS loopback
> driver,
>         mount -oufstype=sun -tufs -oro -oloop ./sunXYZ_home.img /mnt
> As well as making a whole-disk image should I need to blow it back onto a
> disk later.
>
> The images I presently have, however, are only full raw disk images,
> inclusive of partition table. I'd rather not have to write them out to
> disks to read them back in. Logically I need to peel a partition off this
> image so that it can be mounted and data from it copied - but I'm not
> entirely sure how to do that.
>
> At least, I _think_ I'm looking at this problem the right way. I would
> love some advice.
>
> My thanks to all, and do take care of yourselves;
>
>   - JP
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