Just wait for Ubuntu 15.10 - there is BtrFS V4.* included - which is a huge improvement over BtrFS V3.* - all stuff should work a bit smoother..
Btw I dont have to boot from a Live CD, all tools are available in the busybox already - where you get after entering the crypt password, if the partition doesnt boot. In the meantime: The check --repair works every time for me that it happpens. It happend 3 times, my system hangs when some VMs make problems and only this helped back then because they deactivated the Magic SysReq Key Sequence (https://en.wikipedia.org/wiki/Magic_SysRq_key) partially. (REISUB only works partially in Ubuntu, I didnt knew until I read it somewhere..) So, I reactivated the Sequence - now the hangups doesnt make problems anymore as it seems. Maybe thats a compromise until the next Ubuntu release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs