According to #13, we cannot mark this bug "Invalid" for GRUB. For information, other computers use the same 32-bit CPU (Atom Z2760) as the ACER W510: Samsung Smart PC, Asus VivoTab Smart, HP Envy x2, Lenovo Lynx...
Concerning #12, booting the Ubuntu CD/USB in Legacy mode does not imply that the firmware is setup to boot the HDD in Legacy mode. (see example here: https://help.ubuntu.com/community/UEFI#Set_up_the_BIOS_in_EFI_or_Legacy_mode ). Nor that the firmware allows to disable UEFI for the boot on HDD. ** Changed in: grub2 (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1025555 Title: Ubuntu32bits is incompatible with recent (UEFI) computers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1025555/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs