I have problem with CWM menu, I convert cache partition on JFS and it's error that can't mount partition cache. I used link to mkfs.jfs and fsck.jfs from thread G3MOD v2.0 and format to jfs.
#mount
rootfs / rootfs rw,noatime 0 0
proc /proc proc rw,noatime 0 0
sys /sys sysfs rw,noatime 0 0
/dev/block/stl7 /data ext4 rw,nosuid,nodev,noatime,nodiratime,commit=20,barrier=
0,data=ordered,noauto_da_alloc 0 0
tmpfs /dev tmpfs rw,noatime,mode=755 0 0
devpts /dev/pts devpts rw,noatime,mode=600 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,noatime,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/stl6 /system ext4 ro,relatime,commit=600,barrier=0,nobh,data=writebac
k,noauto_da_alloc 0 0
/dev/block/stl8 /cache jfs rw,nosuid,nodev,noatime,nodiratime,iocharset=utf8 0 0
/dev/block/stl4 /efs rfs rw,nosuid,nodev,noatime,vfat,llw,check=no,gid/uid/rwx,i
ocharset=cp437 0 0
/dev/block/mmcblk0p2 /system/sd ext4 rw,noatime,barrier=1,data=writeback 0 0
/dev/block/mmcblk0p2 /data/app ext4 rw,noatime,barrier=1,data=writeback 0 0
/dev/block/mmcblk0p2 /data/log ext4 rw,noatime,barrier=1,data=writeback 0 0
/dev/block/vold/179:2 /data/sdext2 ext4 rw,noatime,barrier=1,data=writeback 0 0
/dev/block/vold/179:1 /mnt/sdcard vfat rw,dirsync,nosuid,nodev,noexec,relatime,u
id=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset
=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/179:1 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,relat
ime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,ioch
arset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
tmpfs /mnt/sdcard/.android_secure tmpfs ro,relatime,size=0k,mode=000 0 0
When I restart phone stl8 mount point disappeared :/ Maybe it's because mkfs isn't in kernel or it's a bug.