5 sec boot
dsaxena at laptop.org
Mon Oct 6 17:49:29 EDT 2008
On Oct 05 2008, at 10:50, Jim Gettys was caught saying:
> On Sat, 2008-10-04 at 16:32 -1000, Mitch Bradley wrote:
> > I have considered something like that off and on. It's sort of nice to
> > have a definite length for the images. There are ways around that, but
> > they are a bit ugly at some level. It's sort of a tossup at some level.
> > One difficultly with having a lot of partitions is that it makes it more
> > likely that you will encounter the resizing issue.
> Ubifs is built on the Ubi layer, which handles resizing (and does so in
> the face of flash errors).
UBI may handle resizeable volumes but I think for our use case, we
want static volume sizes.
> Then again, since ubifs mounts quickly, the largest reason for
> partitioning we've had (to reduce boot time) evaporates. There may be
> other reasons to want partitioning, given dynamic resizing a'la lvm,
> If we go to non-bare flash, of course, other solutions will have to be
We'll still need to support existing deployed laptops so I see the
what type of flash do we use in future updates problem as orthogonal
to replacing the filesystem on current HW.
Deepak Saxena - Kernel Developer - dsaxena at laptop.org
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