Thanks for the advices. To solve the problem, I ran a live CD session with a desktop ubuntu 12.10 and installed the Boot-Repair tool. During the repair it told me something in the sense that my computer required EFI grub (or boot?) configuration and that it had found only non-EFI one. Then, if I remember well, the Boot-Repair tool deleted the non-EFI grub configuration and installed the EFI one.
It asked me to install either to /dev/sda or /dev/sda1 . Since I did not know which of the two options are correct, I installed the new grub to both /dev/sda and /dev/sda1 . The machine now works correctly, no problems with booting it. I guess that the ubuntu 12.10 server installer failed to determine that my BIOS was of the EFI (or UEFI or how it is called) kind and that led to the reported boot failure. I also tried to determine how to turn off the ``secure boot'' in BIOS (it is the origin of the problem, isn't it ?) but could not find any switch to do it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1096845 Title: grub: can not boot after installation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1096845/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
