I will just throw a quick look into it , nothing more , as my setup is
a mess right now. I no kernel guru either, I just wrote the patch :-)
> > > I know a bit about LILO, so I should be able to get the
"root=LABEL=" to
> > > work there as well.
> >
> > There were no problems with the original patch with LILO.
> > You just must use append="root=xxxxx" instead of simply
> > root=xxx , because LILO tries to be "smart" .... at least the
> > version I used then did.
>
> Actually, there are 2 ways to go about this: LILO could do the UUID/LABEL
> resolution at the time lilo is run (to store root dev into kernel), and
> _also_ append "root=LABEL=X" to kernel options, so that if the kernel
> can't resolve the UUID/LABEL (i.e. no support for this option) we can fall
> back to the root dev from when LILO was run.
>
> > > One reason why this may NOT ever make it into the kernel is that I know
> > > "kernel poking at devices" is really frowned upon.
> >
> > This an ugly hack , if you ask me. The identificators ( be it labels ,
> > UUIDs or whatever ) should be outside the partitions. Otherwise cases with
> > swap partitions , <any FS that doesn't support labels/UUIDs> unformatted
> > partitions etc. can not be handled.
>
> LVM now has UUID-like identifiers for all "partitions" (Logical Volumes),
> although they are not really accessible by any tools right now. The "LABEL"
> is actually the LV name, so it is used directly all the time:
>
> /dev/vgroot/lvroot / ext3 defaults 1 1
> /dev/vgroot/lvswap none swap sw,pri=100 0 0
Is /dev/vgroot some kind of pseudo filesystem ?
With plain device files you have the same problems as with the "old"
partitions , I think. ( they have to be mapped to minors and nodes for
them must be created somehow ). I didn't try it yet and with devfs
it should work OK.
> This obviates most of the reason for the UUID/LABEL support, but not
> everyone runs LVM (yet ;-) and ext2 UUID/LABELs are still useful.
And LVM is not windows compatible , AFAIK, is it ?
-- David Balazic -------------- "Be excellent to each other." - Bill & Ted - - - - - - - - - - - - - - - - - - - - - - - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/