low level info on syquest disks...

Marty Leisner (leisner@sdsp.mc.xerox.com)
Mon, 14 Apr 1997 11:12:46 PDT


I have a question on how disks work.

I have a syquest 230 disk.

I formatted it to a ext2 and wrote some stuff onto it (on partition 1).

I recently installed os2 warp4.

I can read the syquest drive in os/2 (I didn't write).

Fdisk says:
Disk /dev/sdb: 64 heads, 32 sectors, 220 cylinders
Units = cylinders of 2048 * 512 bytes

Device Boot Begin Start End Blocks Id System
/dev/sdb1 1 1 220 225264 83 Linux native

I can mounse /dev/sdb as dos...I don't know how or why, and os2 wrote
some stuff there...

[root@compaq leisner]# mount /dev/sdb1 /mnt
[root@compaq leisner]# df -T /mnt
Filesystem Type 1024-blocks Used Available Capacity Mounted on
/dev/sdb1 ext2 218095 88096 118736 43% /mnt
[root@compaq leisner]# ls /mnt
Mail.tar.gz personal.tar.gz tmp
books.tar.gz records.tar.gz writing
lost+found staroffice writing.tar.gz
[root@compaq leisner]# umount /mnt
[root@compaq leisner]# mount /dev/sdb /mnt
[root@compaq leisner]# df -T /mnt
Filesystem Type 1024-blocks Used Available Capacity Mounted on
/dev/sdb msdos 222996 5052 217944 2% /mnt
[root@compaq leisner]# ls -l /mnt
total 8
-r-xr-xr-x 1 root root 8192 Apr 9 00:40 ea data. sf
-rwxr-xr-x 1 root root 0 Apr 9 00:40 wp root. sf
[root@compaq leisner]# exit

Can somone tell me what's goin gon? What are the *. sf files OS/2 likes to
put on dos disks?

marty leisner@sdsp.mc.xerox.com
Don't confuse education with schooling.
Milton Friedman to Yogi Berra