Bug#462218: Bug#461442: detection of other OSes in update-grub

[Fabian Greffrath]

Robert Millan schrieb:
> Why is that a problem?
>   

Because foobar is not a block device, but grub-probe claims that it will 
print a device if '--target=device' is given.

> I think this function could be called from the other part of this file which
> performs similar checks (if this functionality is to be kept, that is).
>   

Yes, I am fine with this.

> I know that the call to probe() is not supposed to be reentrant, but I'd
> prefer not to break reentrancy if it can be easily avoided;  it is possible
> that probe() needs to recurse onto itself in the future (because of RAID/LVM).
>   

OK, but should I keep it uninitialized?

> Please remember to fix that in later versions of the patch ;-)
>   

Sure, my copyright assignment paper is on it's way...

> Is it possible to share code with 10_linux.in here?
>   

Only if os-prober is installed. But then, os-prober does not check for 
kernels on / and /target.

> Maybe this can be simplified with "echo something | read a b c d" feature?
>   

For cosmetic reasons, yes. ;)

Cheers,
Fabian

-- 
Dipl.-Phys. Fabian Greffrath

Ruhr-Universität Bochum
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