Submitted by linuxopjemac on Tue, 12/08/2009 - 12:22 Many people report problems with rEFIt. rEFIt is needed to dual boot MacOSX and Linux. After installation of Linux and rEFIt, rEFIt won't sync the partition table. The message is then "gptsync: GPT partition of type 'Unknown' found, will not touch this disk". This is what I got when I resized my linux partition using parted, resulting in the GPT