UFS

How to mount a partition formatted with UFS (UNIX file system) and the partitioner included with the MacOS X installer

fdisk is not really able to read the partition table that the Macintosh installer writes. To figure out what you have you can e.g. use the Yast partitoning tool. mount -t ufs -o ufstype=openstep -o ro /dev/sda3 /media/misc