Recently on FAT32 partition I made
fdidk -B /dev/c1t1d0p0
and now this partition is Solaris2 partition , how that can be mounted
you have to build a filesystem first with "newfs". after that you can use "mount" or edit "/etc/vfstab" to mount the new filesystem.
Solaris is much more complicated then Gentoo 
this is what i think about gentoo...
Hi microbot,
...:D:D:D:p ...you do not give up!!
...but also on Gentoo you need to build the filesystem (with the mkfs command) after creating the partition 
It can't.
A Solaris2 isn't meant to directly include a filesystem.
You need to create slices on that primary partition first.
Then you create filesystems on these slices that you'll be able to mount.
To create slices, use the format command.
Otherwise, you can go the simpler and much powerful ZFS way.
I used gentoo for a few years ,but Solaris rocks , documentation is like drug for me
edit :
zpool create torrent c1t1d0p0
zfs set compression=on torrent
and that is hole story