Comment 10 for bug 1298894

Revision history for this message
Chris Bainbridge (chris-bainbridge) wrote :

> ----------
> 1.
>
> 2.
>
> Select CD-ROM Boot Type :
> -----------

This is mentioned in http://mjg59.dreamwidth.org/4957.html copy/paste follows..:

[4] Obviously if you want your media to be bootable via both BIOS and EFI you need to produce a CD with two El Torito images. BIOS systems should ignore the image that says it's for EFI, and EFI systems should ignore the BIOS one. Some especially creative BIOS authors[5] have decided that users shouldn't have their choices limited in such a way, and so pop up a screen that says:

1.

2.

Select CD-ROM boot type:

and wait for the user to press a key. The lack of labels after the numbers is not a typographical error on my part.

[5] Older (pre-2009, and some 2009 models) Apple hardware has this bug if a dual-El Torito CD is booted via the BIOS compatibility layer. This is especially unfortunate because said machines often fail to provide a working keyboard emulation at this stage, resulting in you being stuck forever at an impressively unhelpful screen. This isn't a Linux bug, since it's happening before we've run any of our code at all. It's not even limited to Linux. 64-bit install media for Vista SP1, Windows 7 and Server 2008 all have similar El Torito layout and all trigger the same bug on Apple hardware. Apple's aware of this, and has resolved the issue by declaring that these machines don't support 64 bit Windows.