UltraSatanSDCardwithLinux

Reading Data from your UltraSatan SD Card on Linux

If you've followed the tutorial from http://joo.kie.sk/?page_id=306, you can use it straight ahead on Linux !

Making sure the card is detected

After inserting the card, execute the command 'dmesg' and you should see something like this:

[14098.069218] mmc0: new high speed SDHC card at address d555
[14098.069743] mmcblk0: mmc0:d555 SU04G 3.79 GiB 
[14098.072876]  mmcblk0: AHDI p1 p2 p3 p4

This means we have a SD card identified as mmcblk0, on which we have a partition table of Format AHDI with 4 partitions. Yes the Linux kernel has support for the Atari Partition Table format, a relic of the Linux/68k port of the 90's.

Verifying the partitions

Install the programm 'disktype' from your package repository and have a look at each partition

sudo disktype /dev/mmcblk0p1 
Block device, size 242.2 MiB (253999616 bytes)
FAT16 file system (hints score 3 of 5, ATARI ST bootable)
Unusual sector size 4096 bytes
Volume size 242.1 MiB (253853696 bytes, 30988 clusters of 8 KiB)

sudo disktype /dev/mmcblk0p3
Block device, size 29.56 MiB (30999552 bytes)
FAT16 file system (hints score 3 of 5)
 Volume size 29.44 MiB (30869504 bytes, 30146 clusters of 1 KiB)

So here we have two partitions of type FAT16, one has a size of 242MB, the other one 28.44MB

Mounting the partitions =

Altough the sd card does no autoimount when inserting, manually mounting works fine, you just issue:

sudo mount /dev/mmcblk0p1 /mnt

and the data is accessible under /mnt