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Discussion Groups | Comp.Arch.Embedded | Recommendation for ext2 or ext3 with CompactFlash

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Recommendation for ext2 or ext3 with CompactFlash - 17:15 26-12-07



Hello,

We are developing a Linux based embedded system that will use
CompactFlash.

Should we prefer ext2 or ext3?  How should we think about the trade-
offs?

What is your experience using either in a fielded system?

Thanks.

Jim

Re: Recommendation for ext2 or ext3 with CompactFlash - Sven Geggus - 05:25 27-12-07

j...@yahoo.com wrote:

> We are developing a Linux based embedded system that will use
> CompactFlash.
> 
> Should we prefer ext2 or ext3?  How should we think about the trade-
> offs?

I tend to use ext2 or even minix filesystems for this purpose.

You could also consider loopback-mounting the filesystem on top of
fat which will enable customers to update the Software using M$
Operating Systems.

Linux _does_ have very a very good Journaling Flash Filesystem
(jffs2), but unfortunately the block device emulation of common flash
devices like CompactFlash or SD-cards does not allow us to use this
filesystem in conjunction with such devices.

Sven

-- 
"Every time you use Google, you're using a Linux machine"
                             (Chris DiBona, a programs manager for Google)

/me is giggls@ircnet, http://sven.gegg.us/ on the Web