hello, did you recently install new hardware? try this: entered Standard CMOS Setup
set the Primary Master to: Type = User, Mode = LBA by scrolling through the options then set the Primary Slave to: Type = Auto, Mode = Auto -- After installing Ubuntu I get the message, "GRUB loading...error 21" https://bugs.launchpad.net/bugs/121485 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs