Re: [PATCH] Workaround for usb boot failure on some mainboards

[Thomas Frauendorfer]

On Wed, Sep 22, 2010 at 7:45 PM, Lennart Sorensen
<address@hidden> wrote:
> On Wed, Sep 22, 2010 at 06:52:46PM +0200, Thomas Frauendorfer wrote:
>> Well, I think I didn't state the problem clearly enough:
>> The bios doesn't write to the disk, it just changes the value on the
>> fly when the bootloader is reading the bpb through a bios method.
>> The workaroud also doesn't change the disk, it only reads the
>> necessary information from a region the bios doesn't mess up on the
>> fly...
>
> Still a bug.  It can NOT assume things about what is being booted.
> Don't assume FAT16 unless you checked explicitly that it is FAT16.

I know, that a bios must not assume anything about a file system it
hasn't checked. But it does and I can't change that and because of
that bug booting from an usb-stick fails on that mainboard (and most
likely a few others at well).