On Tue, Jul 28, 2009 at 03:26:08PM +1000, leon zadorin wrote:
> That's all I am saying. Feel free to ignore or make "blah blah blah" noises
> :-)
>
> So now we can, perhaps, get back (if at all) to the man pages and what
> they are implying wrt original question.
>
> Leon.
I'm just back from vacation, so I'm late to jump in. The answer krw@
has given is right. We (and as a consequence the kernel) take the
liberty to change fields in disklabel, especially the entry for the
'c' partition.
Furthermore, there are partition specific entries used by fsck_ffs to
locate the alternate superblocks. These entries are NOT maintained for
the 'c' partition.
You might want to check the source of fsck_ffs. It contains code to
locate alternate superblocks, and that code will not work for the 'c'
partition.
As for the slighly off-topic part of the thread: if we write a
guideline into our manual page, it has a good reason to be there.
Consider the man page to be your much needed authorative source of
information.
-Otto