i am looking for some help on an issue with jffs2: i can create jffs2 fs, mount, store edit/write some files, unmount,
but in a next mount i find no more files/dirs.
MTD probe detect correctly my flash, the chip have erase sectors of 4KB, or blocks of 64KB. MTD shows correctly a 0x1000 erase size.
/ # / # cat /proc/mtd
dev: size erasesize name
mtd0: 00010000 00001000 "Colilo (64K)"
mtd1: 002f0000 00001000 "Kernel+ROMfs (3008K)"
mtd2: 00100000 00001000 "JFFS2 (1024K)" <--- want to use this partition only as jffs2 to store non volatile data
mtd3: 0009d000 00001000 "ROMfs"
So from uClinux, i try to prepare the jffs2 fs:
# eraseall /dev/mtd2
erased 1024 Kibyte @ 0 -- 100% complete.
cat /dev/mtd2 i see the flash has been cleared
then i create a folder "backup" in /var with some files and try to crete the jffs2 fs:
mkfs.jffs2 -d backup -o jffs2.img
cp /dev/mtd2 jffs2.img
Then i just mount/umount the device, but i get often the issue described, remounting, no files.
Writing files is also notice some MTD debug trace, maybe an error:
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000074)
Any help is really appreciated.
Last edited by _spectrum_; 05-01-2011 at 04:36 PM.