UBIFS was Re: Compressed file system for SD?
blumph at gmail.com
Mon Oct 13 01:00:25 CEST 2008
I haven't sorry. Coincidentaly, the new kernel which was released the
other day (.27) includes a new filesystem designed for flash drives -
UBIFS . I wonder if this could be relevant to this project. It looks
like it has full write-back support, meaning it doesn't need to write to
the SD card all the time, although I guess we don't have that much
memory to play with.
<http://kernelnewbies.org/Linux_2_6_27>Stefan Monnier wrote:
> The jffs filesystem used on the NAND is compressing, which is great for
> our use case. For the SD that would also be very desirable (especially
> with the provided 512MB µSD), but it seems that ext3 is the filesystem
> of choice there. Has someone tried to use a compressing filesystem
> PS: I've used jffs2 on a USB drive (through block2mtd) and it works, but
> it's inefficient (because of block2mtd) and it's not clear how/if it
> would work here (it went through an initrd); but a basic x86 Debian
> install (for rescue, but including gcc to compile extra packages) fits
> just fine in 256MB this way, so 512MB would be plenty.
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