Hi! The file system on my FreeBSD 11.0-RELEASE is UFS which I have all the time. I like to have ZFS but I do not like to reformat HD and installed everything again. The OS is installed on iMac and I use rEFIt for dual boot with OSX. I have also external HD which cannot be use for boot. Is it any chance to convert to ZFS file system, please? Thank you. SK