Re: [uml-devel] Partitioning scheme for ubd's

[BlaisorBlade <blaisorblade_spam@yahoo.it>]

Alle 20:52, martedì 4 novembre 2003, Matt Zimmerman ha scritto:

> The command line, I think, accepts both for backward compatibility.
Backward compatibility is ok. If CLI accepts both, we are ok. Only docs don't 
seem up-to-date.
> The
> device file names, of course, are a userland concern.  Current versions of
> makedev, at least in Debian, use the new scheme.
>
> > > > The other possible solution(which would be
> > > > cleaner) would be to teach, if possible, to the host kernel Device
> > > > Manager to read a file as a bunch of partition with its table(I've
> > > > heard of DM about COW files these days), and then to mount the
> > > > partitions, but I don't know if it's possible.
> >
> > Would instead this one(or another way to do this) be interesting? So that
> > the kernel could guess by itself the offsets of partitions, rather than
> > requiring the user do more passages(i.e. use fdisk to read partition
> > table) to handle this.
>
> I suppose the solution to this would be partition support on loop devices.
> Is this any easier in 2.6?
I've not yet looked at the code, but anyway 2.6 is just cooler, and with 
better Makefiles... so if I **ever** do this, I'll do it in 2.6.

About 2.6, are you still interested in the mconsole_exec patch? I could port 
it to 2.6, and in that case, probably I could even add the managing of 
stdin/out/err to a console/serial line. in 2.4 exec_usermodehelper closes all 
open files(I didn't want to duplicate it, the patch was not meant as a toy), 
in 2.6 it's probably simpler.
-- 
cat <<EOSIGN
Paolo Giarrusso, aka Blaisorblade
Linux Kernel 2.4.21/2.6.0-test on an i686; Linux registered user n. 292729
EOSIGN



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