On 30/10/11 16:45, Andy Braben wrote:
I would also think it unlikely to be UEFI that is causing the problem.
it is UEFI causing the problem, or more strictly speaking it is Ubuntu's
imperfect support for UEFI on the 32bit desktop iso that is causing the
problem. It isn't secure boot, which is an optional feature of UEFI. It
isn't BIOS settings because this machine does not have a BIOS, it has
UEFI instead.
UEFI is not in itself evil stuff, it is the next generation of BIOS,
rather different to BIOS and that can cause issues with loading, but we
just have to support the standards properly to do that bit (and the OEM
has to be supporting the standards correctly too). The thing that has
the potential to scupper us is the Secure boot feature of UEFI, which
could be used to lock the hardware to only boot images signed with
pre-loaded keys. This could potentially be used to make a machine that
will only boot Windows 8 (or above). Such a machine would not boot any
unsigned bootloader, which could include Ubuntu, Windows XP and Windows
7, which is on the machine in question, so secure boot would not appear
to be involved in this problem.
Alan.
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