Jay
Jay First import ufs module from terminal :
sudo modprobe ufs
or, if mounting UFS is planned on fron the begin, one can configire a kernel with built-in support by specifying in the kernel config:
CONFIG_UFS_FS=y
CONFIG_UFS_FS_WRITE=y
And mount NetBSD partition with :
mkdir /mnt/netbsd
mount -t ufs -o ro,ufstype=44bsd /dev/sda1 /mnt/netbsd/
also, in order to mount a FFSv2 (UFS2) partition:
sudo mount -t ufs -o ufstype=ufs2 /dev/sda1 /mnt/netbsd
Side Note: Illumos UFS support is codified by ufstype=sun