Hello,
I am running some experiments with UBIFS support in U-BOOT. Here is my setup:
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AM335X Custom hardware based on BeagleBoneBlack, but with NAND instead of eMMC.
Spansion SCL NAND S34ML01G2
u-boot-2013.10-ti2013.12.01 taken from TI SDK ti-sdk-am335x-evm-07.00.00.00
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Following instructions found on:
http://processors.wiki.ti.com/index.php/UBIFS_Support#How_to_enable_UBI.2FUBIFS_support_in_u-boot_.3F
I have added the following to u-boot-2013.10-ti2013.12.01/include/configs/am335x_evm.h
#define CONFIG_CMD_NAND
#define CONFIG_CMD_UBI
#define CONFIG_CMD_UBIFS
#define CONFIG_RBTREE
#define CONFIG_MTD_DEVICE
#define CONFIG_MTD_PARTITIONS
#define CONFIG_CMD_MTDPARTS
#define CONFIG_LZO
After running U-Boot, I followed the examples in u-boot-2013.10-ti2013.12.01/doc/README.ubi. I am unable to mount the ubi partition with ubifsmount. I suspect it may have something to do with the pagesize/subpagesize/vid-header-offset not matching, but not sure how to get these all to match. Please see the following output, and help or ideas will be greatly appreciated thank you! - Anthony
U-Boot# nand erase.chip
NAND erase.chip: device 0 whole chip
Erasing at 0x7fe0000 -- 100% complete.
OK
U-Boot# mtdparts
device nand0 <nand.0>, # parts = 10
#: name size offset mask_flags
0: SPL 0x00020000 0x00000000 0
1: SPL.backup1 0x00020000 0x00020000 0
2: SPL.backup2 0x00020000 0x00040000 0
3: SPL.backup3 0x00020000 0x00060000 0
4: u-boot-spl-os 0x00040000 0x00080000 0
5: u-boot 0x00100000 0x000c0000 0
6: u-boot-env 0x00020000 0x001c0000 0
7: u-boot-env.backup1 0x00020000 0x001e0000 0
8: kernel 0x00800000 0x00200000 0
9: rootfs 0x07600000 0x00a00000 0
active partition: nand0,0 - (SPL) 0x00020000 @ 0x00000000
defaults:
mtdids : nand0=nand.0
mtdparts: mtdparts=nand.0:128k(SPL),128k(SPL.backup1),128k(SPL.backup2),128k(SPL.backup3),256k(u-boot-spl-os),1m(u-boot),128k(u-boot-env),128k(u-boot-env.backup1),8m(kernel),-(rootfs)
U-Boot# ubi part rootfs
UBI: mtd1 is detached from ubi0
UBI: attaching mtd1 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 129024 bytes
UBI: smallest flash I/O unit: 2048
UBI: sub-page size: 512
UBI: VID header offset: 512 (aligned 512)
UBI: data offset: 2048
UBI: empty MTD device detected
UBI: create volume table (copy #1)
UBI: create volume table (copy #2)
UBI: attached mtd1 to ubi0
UBI: MTD device name: "mtd=9"
UBI: MTD device size: 118 MiB
UBI: number of good PEBs: 944
UBI: number of bad PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 0
UBI: available PEBs: 931
UBI: total number of reserved PEBs: 13
UBI: number of PEBs reserved for bad PEB handling: 9
UBI: max/mean erase counter: 1/0
U-Boot# ubi create testvol
No size specified -> Using max size (120121344)
Creating dynamic volume testvol of size 120121344
U-Boot# ubi info l
UBI: volume information dump:
UBI: vol_id 0
UBI: reserved_pebs 931
UBI: alignment 1
UBI: data_pad 0
UBI: vol_type 3
UBI: name_len 7
UBI: usable_leb_size 129024
UBI: used_ebs 931
UBI: used_bytes 120121344
UBI: last_eb_bytes 129024
UBI: corrupted 0
UBI: upd_marker 0
UBI: name testvol
UBI: volume information dump:
UBI: vol_id 2147479551
UBI: reserved_pebs 2
UBI: alignment 1
UBI: data_pad 0
UBI: vol_type 3
UBI: name_len 13
UBI: usable_leb_size 129024
UBI: used_ebs 2
UBI: used_bytes 258048
UBI: last_eb_bytes 2
UBI: corrupted 0
UBI: upd_marker 0
UBI: name layout volume
U-Boot# ubi info
UBI: MTD device name: "mtd=9"
UBI: MTD device size: 118 MiB
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 129024 bytes
UBI: number of good PEBs: 944
UBI: number of bad PEBs: 0
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 512 (aligned 512)
UBI: data offset: 2048
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 944
UBI: number of PEBs reserved for bad PEB handling: 9
UBI: max/mean erase counter: 2/0
U-Boot# ubi write 90000000 testvol 80000
524288 bytes written to volume testvol
U-Boot# ubi read A0000000 testvol 80000
Read 524288 bytes from volume testvol to a0000000
U-Boot# cmp.b 90000000 A0000000 80000
Total of 524288 byte(s) were the same
U-Boot# ubifsmount ubi0:testvol
UBIFS error (pid 0): ubifs_read_node: bad node type (255 but expected 6)
UBIFS error (pid 0): ubifs_read_node: bad node at LEB 0:0
UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume 'ubi0:testvol' errno=-22!
ubifsmount - mount UBIFS volume
Usage:
ubifsmount <volume-name>
- mount 'volume-name' volume
U-Boot# ubifsmount ubi0:rootfs
UBIFS error (pid 0): ubifs_get_sb: cannot open "ubi0:rootfs", error -19
UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume 'ubi0:rootfs' errno=-19!
ubifsmount - mount UBIFS volume
Usage:
ubifsmount <volume-name>
- mount 'volume-name' volume
U-Boot# ubifsmount rootfs
UBIFS error (pid 0): ubifs_get_sb: cannot open "rootfs", error -22
UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume 'rootfs' errno=-22!
ubifsmount - mount UBIFS volume
Usage:
ubifsmount <volume-name>
- mount 'volume-name' volume
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