[PATCH 13/17] defaultenv: handle disk partitions

[Sascha Hauer]

On Mon, Oct 11, 2010 at 02:59:35PM +0200, Juergen Beisert wrote:
> Sascha Hauer wrote:
> > On Mon, Oct 11, 2010 at 02:26:12PM +0200, Juergen Beisert wrote:
> > > Sascha Hauer wrote:
> > > > Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> > > > ---
> > > >  defaultenv/bin/init |    4 ++++
> > > >  1 files changed, 4 insertions(+), 0 deletions(-)
> > > >
> > > > diff --git a/defaultenv/bin/init b/defaultenv/bin/init
> > > > index a55e8e6..526e3db 100644
> > > > --- a/defaultenv/bin/init
> > > > +++ b/defaultenv/bin/init
> > > > @@ -8,6 +8,10 @@ if [ -e /dev/nor0 ]; then
> > > >  	addpart /dev/nor0 $nor_parts
> > > >  fi
> > > >
> > > > +if [ -e /dev/disk0 ]; then
> > > > +	addpart /dev/disk0 $disk_parts
> > > > +fi
> > > > +
> > >
> > > Are you sure you want/need additional partitions on a disk without a
> > > persistant partition table?
> >
> > No ;)
> >
> > It is not completely clear to me how we handle this best. On i.MX51 I
> > have some problems with the partition table. When booting from SD card
> > we just dump barebox.bin to the raw card. The partition table is then
> > part of barebox.bin. Unfortunately we do not know (or at least we don't
> > want to specifiy) the size of the card during compile time.
> >
> > How should a bootable SD card should be partitioned anyway? We could add
> > partitions for barebox/env/kernel/root like usual, but this does not
> > look very standard for SD cards (and we even need extended partitions
> > if we want to add a data partition). We could also add just a single
> > partition for root and maintain the rest outside of any partition.
> 
> If you want your kernel to work with this card you will need a partition 
> table. Its more like a hard disk, not like a flash memory of NAND or NOR 
> type. So, IMHO you will need a full blown partition table when you want use 
> the SD card outside barebox.

Yes I know. Do we need a fdisk command for barebox?

Sascha

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