Author Topic: JFFS2 tools HOWTO (Read 7895 times)

lede1 · « **Reply #15 on:** May 18, 2004, 06:07:42 pm »

Me again...

Finally, I did it! Got the pdaXrom kernel source plus patches and config file from a link posted in another thread, build it with my kegel.com gcc-2.95.3/glibc2.2.5 cross chain, copied the blkmtd.o module on my Z, and voila! everything worked as decribed by DrWowe in the first post. Cool! Now I can go ahead and start putting some stuff on my SD card.....

/Levent

DrWowe · « **Reply #16 on:** May 18, 2004, 06:15:05 pm »

Glad it worked! It might be useful if you upload your version of blkmtd.o to the files area.

lede1 · « **Reply #17 on:** May 20, 2004, 04:52:58 am »

Hi!

I just uploaded the module, hope it\'ll show up soon.

/Levent

Ethereal · « **Reply #18 on:** May 22, 2004, 03:40:50 pm »

Quote

Actually, you could probably take care of it by filling your partition with a gibberish and then deleting it. Run df to see how much free space you have, then do:

$ dd if=/dev/urandom of=gibberish bs=1024 count=(free space in KB)
followed by:
$ rm gibberish

On a 512MB SD card, each of these is taking hours to complete. :shock: Is this consistent with everyone else\'s experience?

(Once rm finishes--tomorrow?--I\'m going to run some jffs2 vs ext2 benchmarks...)

Ethereal · « **Reply #19 on:** May 22, 2004, 09:35:38 pm »

As measured by timing the copying of a 10MB gibberish file from internal flash to SD and back again, I\'m getting about 65 KB/sec to write to the SD and 237 KB/sec to read from it.

By comparison, I\'m getting 1078 KB/sec to write to an SD card formatted ext2, and 336 KB/sec to read back from it...

What\'s everybody else\'s experience?

News:

Author Topic: JFFS2 tools HOWTO (Read 7895 times)