Yet another test and verification: I subsequently inserted the DVD disk into two other PCs (desktop ones). The first one (an old PC with Intel Core Quad) failed to boot completely, just showing some I/O errors. The other PC (Intel i7 3930K Extreme) booted only to text console. Both use NVidia adapters.
I started to be suspicious about the quality of the DVD+RW medium. Therefore I burned the iso image onto a brand new medium (DVD+R). Of course, I performed md5sum check before the burning and the burning procedure was now accomplished on the ZBook. The result is the same: the boot process fails on HP ZBook 15 precisely in the same way as with the former DVD disk. (And I expect that it would fail also with the two desktop machines.) Because this boot issue was found also in the previous development release (see my report from 19th January) and because the md5sum check was always successful, I can not suspect that the images were broken during network transfers. My conclusion is that there is some severe issue in the present development release (and was also in the previous one). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1255104 Title: HP ZBook 15 Try Ubuntu via Live environment freezes system after a while To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1255104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
