UBIFS 8.2 image
wad at laptop.org
Fri Oct 10 16:26:50 EDT 2008
Still trying to reproduce the first weirdness I saw, but I've already
run into pretty much the same problem with my standard test.
I installed UbiFS as indicated.
I installed 16 files of size 32 MB in the root partition.
df indicated around 50 MB free.
I started a loop of reading two files and comparing them,
then writing two 10MB files, reading them back (and
comparing them), then deleting them. Repeat ad-infinitum.
After 11 cycles, writing files to the file system started failing.
(Read-only file system)
df indicates that 45 MB are still available!
On Oct 10, 2008, at 6:41 AM, Deepak Saxena wrote:
> I have created an initial UBIFS 8.2 image that can be used for testing
> and playing with.
> See http://wiki.laptop.org/go/UBIFS_initial_experiments
> for information on how this was created and some of my intial notes.
> If you just want to download and run:
> * Make sure your XO has security disabled
> * Make sure your XO is running the latest OFW. The best way to do
> is to update it to 8.2.0.
> * Download the following files to a USB stick:
> * Boot the laptop with USB stick and escape into the OFW prompt.
> * Run:
> ok dev nand : write-blocks write-pages ; dend
> write-blocks isn't unique # You can ignore this
> ok update-nand u:\data.img
> * At this point OFW will erase the flash and copy the contents of the
> nand.img file to flash. When complete you can simply reboot the
> If you want to know a bit more about UBIFS, why we're looking at it,
> and the overall impact a switch over would have, see the following
> page that is still under development:
> Thanks to Mitch Bradley for his help with OFW and Erik Garrison for
> his OFW image builder script.
> Deepak Saxena - Kernel Developer - dsaxena at laptop.org
> Devel mailing list
> Devel at lists.laptop.org
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