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

[Thomas Frauendorfer]

On Wed, Sep 22, 2010 at 6:14 PM, Lennart Sorensen
<address@hidden> wrote:

> Wouldn't that be a bug in the BIOS?  Don't go writing to a drive you
> don't know what contains.  It could be something other tahn fat16 after
> all (what if it was a linux kernel with a bootheader on it and not a
> filesystem at all?)
>
> Sounds like the BIOS needs fixing badly.  Nothing wrong with making
> grub more robust against corrupt filesystems, but it doesn't actually
> fix the bug in the BIOS.

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...