link2sd doesn't work on this latest rom due to a bug(?) in a link into /system/bin/mkdir -> toolbox
mkdir: no such tool
seems toolbox doesn't provide mkdir but since busibox does, simply type this after adb shell:
ln -sf /system/xbin/busybox /system/bin/mkdir
also seems there is a bug into the /etc/init.d/05mountsd script (only if your ext is ext2 formatted ?), change:
$BB mount -o noatime,nodiratime,barrier=1 -t ext3 $SD_EXT_PART $SD_EXT_DIRECTORY;
$BB mount -o noatime,nodiratime -t auto $SD_EXT_PART $SD_EXT_DIRECTORY;
for me now link2sd work perfectly and also ext partition is mounted without problems.