Mounting ULTRIX CDROMs on Linux

Warner Losh imp at bsdimp.com
Thu May 20 15:01:21 CDT 2021


On Thu, May 20, 2021 at 1:56 PM Antonio Carlini via cctalk <
cctalk at classiccmp.org> wrote:

> I'm running Linux Mint (an ubuntu derivative) and I want to mount ULTRIX
> CDROM discs to see what I can see.
>
> (I'm eventually going to image these, but I presume that will "just
> work" with dd or ddrescue).
>
> They are supposed to be UFS format (according to the net) and that
> usually means you have to tell mount exactly which option to use (as not
> all UFS implementations are compatible).
>
>
> I've tried (all the options I can find) and failed:
>
>
> $ sudo mount -t ufs  -o ufstype=44bsd /dev/sr1 /tmp/mount
>

44bsd is likely too new. ufstype=old or =sunos or =sun might work.

Warner

> mount: /tmp/mount: wrong fs type, bad option, bad superblock on
> /dev/sr1, missing codepage or helper program, or other error.
>
>
> The CDROM would appear to be readable 9and I've tried a few anyway):
>
> $ sudo file -s /dev/sr1
> /dev/sr1: Unix Fast File system [v1] (little-endian), last mounted on
> /UPS_MOUNT_TAR_SOURCE, last written at Wed Sep 28 16:27:45 1994, clean
> flag 30, number of blocks 243648, number of data blocks 233295, number
> of cylinder groups 38, block size 8192, fragment size 1024, minimum
> percentage of free blocks 10, rotational delay 0ms, disk rotational
> speed 60rps, TIME optimization
>
>
> A later Digital Unix CDROM behaves the same way with mount and reports
> this with file:
>
> $ sudo file -s /dev/sr1
> /dev/sr1: Unix Fast File system [v1] (little-endian), last mounted on
> /kits/tmp/gendisk17665/mnt, last written at Wed Nov 20 13:38:02 1996,
> clean flag 3, number of blocks 151168, number of data blocks 150383,
> number of cylinder groups 24, block size 8192, fragment size 1024,
> minimum percentage of free blocks 0, rotational delay 0ms, disk
> rotational speed 60rps, SPACE optimization
>
>
> I also have a few OSF/1 CDROMs, which I assume are also the same format.
>
>
> Any ideas? I can't be the first person to try to do this ...
>
>
> Antonio
>
>
>
> --
> Antonio Carlini
> antonio at acarlini.com
>
>


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