Editing N9's rootfs.jffs2
[QUOTE=x86;403015]Here one solution to mount N900 root.jffs2 with UBIfs written by X86
Code:
# modprobe mtdblock
# modprobe ubi
# modprobe nandsim first_id_byte=0x20 second_id_byte=0xaa third_id_byte=0x00 fourth_id_byte=0x15
# cat /proc/mtd
dev: size erasesize name
mtd0: 10000000 00020000 "NAND simulator partition 0"
# ls -la /dev/mtd*
brw-r--r-- 1 root root 31, 0 2009-12-01 18:50 /dev/mtd0
brw-rw---- 1 root disk 31, 0 2009-12-01 19:06 /dev/mtdblock0
# dd if=rootfs.jffs2 of=/dev/mtdblock0 bs=2048
74688+0 records in
74688+0 records out
152961024 bytes (153 MB) copied, 5.87334 s, 26.0 MB/s
# ubiattach /dev/ubi_ctrl -m 0
UBI device number 0, total 2048 LEBs (264241152 bytes, 252.0 MiB), available 0 LEBs (0 bytes), LEB size 129024 bytes (126.0 KiB)
# ls -la /dev/ubi*
crw-rw---- 1 root root 252, 0 2009-12-01 19:06 /dev/ubi0
crw-rw---- 1 root root 252, 1 2009-12-01 19:06 /dev/ubi0_0
crw-rw---- 1 root root 10, 58 2009-12-01 19:05 /dev/ubi_ctrl
# mount -t ubifs ubi0_0 /mnt/n900/
# ls -la /mnt/n900 | head
total 4
drwxr-xr-x 22 root root 1504 2009-10-30 14:36 .
drwxr-xr-x 9 root root 4096 2009-10-25 20:02 ..
drwxr-xr-x 2 root root 3920 2009-10-30 14:31 bin
drwxr-xr-x 2 root root 232 2009-10-30 14:48 boot
drwxr-xr-x 2 root root 160 2009-10-30 14:28 cdrom
drwxr-xr-x 3 root root 3808 2009-10-30 14:37 dev
drwxr-xr-x 2 root root 160 2009-10-30 14:28 .dev
drwxr-xr-x 72 root root 7488 2009-10-30 14:48 etc
drwxr-xr-x 2 root root 160 2009-10-30 14:28 floppy
#
Hi, working perfect with a N900, thanks man.
But I make the same procedure to open N9 root.jffs2, a <FIASCO image> of about 846 Mb so i had unpack it with flasher 3.5 and now I can work with a root.jffs2 of about 826Mb:
Code:
apt-get update && apt-get install mtd-tools
modprobe mtdblock
modprobe ubi
modprobe nandsim cache_file=my_image first_id_byte=0xec second_id_byte=0xd3 third_id_byte=0x51 fourth_id_byte=0x95
# i use a NAND 1GB putting all datas to a cache file , not to RAM
# cat /proc/mtd
dev: size erasesize name
mtd0: 40000000 00020000 "NAND simulator partition 0"
ls -la /dev/mtd*
dd if=rootfs.jffs2 of=/dev/mtdblock0 bs=2048
ubiattach /dev/ubi_ctrl -m 0
# ubiattach: error!: cannot attach mtd0 error 22 (Invalid argument)
on dmesg I have many errors on UBI creation phase
PS : i try also with nandwrite -p /dev/mtd0 rootfs.jffs2 in replacing to dd method but with the same errors.
Can anyone do it? |
