Mounting HDF with RDB in GNU/Linux

[Gaula92]

Hi,

I have been trying this for a while, but never got it to work.
It's supposed to be easy. First we find out the partition iffset using parted:

manuel@vader:~$ parted /media/manuel/MINIMIG_V1/hdf_sys31.hdf 
WARNING: You are not superuser.  Watch out for permissions.
GNU Parted 3.2
Using /media/manuel/MINIMIG_V1/hdf_sys31.hdf
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) unit
Unit?  [compact]? B                                                       
(parted) print                                                            
Pralloc = 0, Reserved = 2, blocksize = 1, root block at 737478
Model:  (file)
Disk /media/manuel/MINIMIG_V1/hdf_sys31.hdf: 754974720B
Sector size (logical/physical): 512B/512B
Partition Table: amiga
Disk Flags: 

Number  Start    End         Size        File system  Name  Flags
 1      258048B  754919423B  754661376B  affs1        DH0   boot

Ok, so 258048 is the offset we need. Then we try to mount with that offset:

manuel@vader:~$ sudo mount -o loop,rw,offset=258048 /media/manuel/MINIMIG_V1/hdf_sys31.hdf /mnt/hdd
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

What's going on here??? It SHOULD work!
Regarding the issue, dmesg only says this:

[ 2397.519252] affs: No valid root block on device loop0

So, is it possible at all? I have been other people trying and failing...

I have also tried using a loop device and then mounting it:

manuel@vader:~$ sudo losetup -o 258048 /dev/loop2 /media/manuel/MINIMIG_V1/hdf_sys31.hdf
manuel@vader:~$ sudo mount -t affs /dev/loop2 /mnt/hddmount: wrong fs type, bad option, bad superblock on /dev/loop2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

...and again dmesg says no valid root block

[ 3102.708499] affs: No valid root block on device loop2

EDIT: OK, got it to work....

sudo mount -t affs -o loop,offset=258048,sizelimit=754661376 /media/manuel/MINIMIG_V1/hdf_sys31.hdf /mnt/hdd/

I was simply missing the sizelimit parameter, which is taken from the partition SIZE that parted gave us.
It seems that, in fact, I did it in the past...

http://www.minimig.net/viewtopic.php?f=3&t=553

Sorry for the monologue. I am leaving it here for future reference.