[ag-automation] Problem reading RBF filesystem on SCSI disk

[Carsten Emde]

Piotr,

I tried again to find a 256-Byte/sector OS-9 harddisk, and I looked into 
every corner - I couldn't find one. But I found a 20-year old 
512-Byte/sector OS-9 formatted harddisk with a logical sector size of 
256 Bytes. Initially, the motor didn't start, but then, after several 
start attempts and some funny noises, it worked:
SCSI device sda: 676416 512-byte hdwr sectors (346 MB)

# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
   Vendor: MAXTOR   Model: XT-8000S         Rev: B2
   Type:   Direct-Access                    ANSI SCSI revision: 01 CCS

I then typed
# mount /dev/sda /mnt/os-9
and the disk was mounted without any problem. I could access every file 
on the disk. So, I can confirm that the rbf file system for Linux works 
with SCSI hard disks as well, at least if the medium is hard-formatted 
with 512 Bytes/sector.

My conclusion: The problem you are observing is most probably related to 
the fact that your disk is hard-formatted with the nowadays unusual 
sector size of 256 Bytes. If I only had one of these good old Fujitsu 
disks, I could certainly fix the problem very quickly.

	cbe