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SubjectRe: [PATCH] Add commandline partitions for block devices v2
On Tue, Jun 22, 2010 Andrew Morton wrote:
> On Tue, 8 Jun 2010 Linus Walleij wrote:
> > From: Ulf Hansson <>
> >
> > This adds an option to pass in block device partitions from the kernel
> > cmdline.
> >
> > The rationale is that in embedded systems we sometimes have no standard
> > partition table available: often due to the fact that raw binary data is
> > read out from the first sectors of the device by ROM code in ASICs. We
> > have for a long time supplied custom partition information to embedded
> > flash memories through the MTDparts interface which has similar
> > semantics, and with the advent of embedded MMC block devices this now
> > comes to standard block devices.

allow one to add or remove partitions at run time, without having
a partition table, or without having a partition table in a format
understood by the kernel. Things can be done in user space.

In general there are many things one would like the kernel to do at
init time, and it is a bad idea to do all of this from the kernel
command line. So adding options like these should be done only
if it would be really awkward to do the same from an initial


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