WUHU !!! finaly "fixed" the error. It seems that the hardware combination caused the Problem. I was Using an very old Transcend SSD (TS128GSSD25S-M) with a very new Mainboard ASRock B85M Pro4 ( Intel B85M Chipset as the name says) + I3 Cpu. After cloneing the System with clonezilla to a Samsung 840 Evo (250GB) i now booted arround 30 times with no problems.
I don't think that the Transcend SSD alone is the Problem cause the disk worked on an Intel Atom Mainboard + Ubuntu Server 12.?04? without problems, so it seems the combination (Maybe the UEFI Bios ?) leads to the Problem. regards Steven -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/600728 Title: gave up waiting for root device (temporary, intermittent) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/600728/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs