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Flashing UBIFS file system to NAND

Mauro Bressan
Prodigy 90 points

Hi TI, 

I'm working with a am335X and a NAND flash of 1GB.
I'm try to flash an UBIFS root file system, using u-boot, from a SD card to the NAND flash but the kernel isn't able to detect the rootfs partition.
The UBI image file that I need to copy is in the boot(FAT) partition of the SD card, I hope this not cause the whole problem.

This is the error from the kernel:

[    1.988948] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:01 UTC (946684801)
[    2.001853] UBIFS error (pid 1): ubifs_mount: cannot open "ubi0:rootfs", error -19
[    2.009879] VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0): error -19
[    2.018391] Please append a correct "root=" boot option; here are the available partitions:
[    2.027268] b300         3694592 mmcblk0  driver: mmcblk
[    2.032910] b310           16384 mmcblk0boot1  (driver?)
[    2.038525] b308           16384 mmcblk0boot0  (driver?)
[    2.044163] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

MTD info:

device nand0 <omap2-nand.0>, # parts = 8
#: name                size            offset          mask_flags
 0: SPL                 0x00080000      0x00000000      0
 1: SPL.backup1         0x00080000      0x00080000      0
 2: SPL.backup2         0x00080000      0x00100000      0
 3: SPL.backup3         0x00080000      0x00180000      0
 4: u-boot              0x00180000      0x00200000      0
 5: u-boot-env          0x00080000      0x00380000      0
 6: kernel              0x00c00000      0x00400000      0
 7: rootfs              0x3f000000      0x01000000      0
active partition: nand0,0 - (SPL) 0x00080000 @ 0x00000000
defaults:mtdids  : nand0=omap2-nand.0
mtdparts: mtdparts=omap2-nand.0:512k(SPL),512k(SPL.backup1),512k(SPL.backup2),512k(SPL.backup3),1536k(u-boot),512k(u-boot-env),12288k(kernel),-(rootfs)

environment

nandroot=ubi0:rootfs rw ubi.mtd=7,4096
nandrootfstype=ubifs rootwait=1
nandargs=run bootargs_defaults;setenv bootargs ${bootargs} root=${nandroot} noinitrd rootfstype=${nandrootfstype} ip=${ip_method}

u-boot command for copy

nand erase 1000000 4000000
fatload mmc 0 81000000 ubi.img;
nand write 81000000 1000000 3A80000
saveenv

NAND INFO

Device 0: nand0, sector size 512 KiB
Page size      4096 b
OOB size        224 b
Erase size   524288 b

CREATE UBI IMG

sudo mkfs.ubifs -r filesystem/ -F -o ubifs.img -m 4096 -e 516096 -c 2000
ubinize -o ubi.img -m 4096 -p 512KiB -s 4096 -O 4096 ubinize.cfg

 

After a lot of test i'm still not able to figure out of this problem. Could anyone help me, please?

Regards,

Mauro

 

 

 

 


 

  • 0
    Guru 11260 points
    Hi,

    What is the NAND flash block size & the erase size ? Also can attach the ubinize.cfg file aswel ?
    try removing 'ubi.mtd=7,4096' from your environment.

    There is easier alternative way to flash ubi file system aswel you can refer this links (for this initially you want to have your filesystem on SD/NFS) and use the mtdutils.
    http://wiki.linpert.de/index.php?title=UBIFS
    http://processors.wiki.ti.com/index.php/UBIFS_Support

    Thanks,
    --Prabhakar Lad
  • 0 in reply to Prabhakar Lad
    Prodigy 90 points

    Hi, thank you for the reply.

    I've already tyied to follow the step of your second link but I've found the same results.
    Regarding your first link, is used a UBIFS partitioning from user space and i need to do all from u-boot.

    I'm thinking that the problem could come from some bad parameters used for the UBIFS image creation.
    Maybe, according with the size of the initial partition I have to resize some parameters, I try to calculate them again.

    NAND INFO

    Device 0: nand0, sector size 512 KiB
    Page size      4096 b
    OOB size        224 b
    Erase size   524288 b

    UBIFS.CFG

    [ubifs]
    mode=ubi
    image=ubifs.img
    vol_id=0
    vol_size=192MiB
    vol_type=dynamic
    vol_name=rootfs
    vol_flags=autoresize

    Thanks,

    Mauro

  • 0 in reply to Prabhakar Lad
    Prodigy 90 points
    The NAND flash block size and also the erase size are 512K.

    I've calculated the parameters again and used the follows:
    ./mkfs.ubifs -r rootfs/ -F -o ubifs.img -m 4096 -e 516096 -c 1991
    ./ubinize -o ubi.img -m 4096 -p 512KiB -s 4096 -O 4096 ubinize.cfg
    in the ubinize.cfg vol_size=980MiB

    anyway the result is the same.
    Should the vol_size fit al the partition size or could it be lower?
  • 0 in reply to Mauro Bressan
    Expert 2985 points

    Hi Mauro,

    I was facing similar issue,

    Check below link if that helps you,

    http://stackoverflow.com/questions/20917921/unable-to-attach-ubi-to-mtd-partition

    Thank you,

    Regards,

    Ankur

  • 0 in reply to Ankur Tank
    Prodigy 90 points

    Hi Ankur, 

    Thanks for you reply, 

    I've already seen your link but I still haven't any success in the rootfs flashing.

    Have you a working rootfs at now?

    I'm thinking that the problem is due to an old version of uboot that don't include the 16bit ECC. Which version do you have?

    Thanks,

    Mauro

  • 0 in reply to Mauro Bressan
    Expert 2985 points
    Hi Mauro,

    We were using u-boot from IPNC RDK version-5 and old bootload of that board prints versions as "U-Boot 1.3.4"
    Which version are you using ?

    Regards,
    Ankur
  • 0 in reply to Ankur Tank
    Expert 2985 points

    I don't have working RFS right now,

    have you tried defining peb and min_io size in your ubinize.cfg file ? Can you recheck the same?

    My ubinize content was as follows,

    [ubifs]
peb=0x40000
min_io_size=0x800
compress_type=zlib
mode=ubi
image=ubifs.img
vol_id=0
vol_size=124MiB
vol_type=dynamic
vol_name=rootfs
vol_flags=autoresize
  • 0 in reply to Ankur Tank
    Prodigy 90 points
    I didn't specify the peb and the min_io_size in ubifs.

    Anyway I'm using this NAND flash MT29F8G08ABABAWP. According with the datasheet my parameters should be these
    peb=0x80000 ==> page size 512K
    min_io_size=0x1000 ==> 4096

    Which is your nand?

    My u-boot version is 2012.10, I'm not sure if this code is refered to another version.
    Are you able to use the nanecc comamnd in your uboot? This command permit you to set the ECC used.
  • 0 in reply to Mauro Bressan
    Expert 2985 points

    Hi Mauro,

    Ours was also Micron NAND, it was MT29F8G08ABABA.

    If you see architecture diagram of my NAND in below link

    Page size was mentioned as 4096 but i had to use page size as 2048 to make it work,

    You too try it.

    It was my old project, i don't have that setup now :(

    I suggest you to compare your NAND architecture with mine,(refer stackoverflow link)

    You can also see my board's boot log, refer kernel parameter and check if you have to use the same or not.

    [    0.000000] Linux version 2.6.37_IPNC_DM368_5.1.0 (still-image@stillimage-VirtualBox) (gcc version 4.3.3 (GCC) ) #2 PREEMPT Wed Jan 8 12:23:10 IST 2014
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: DaVinci DM36x IPNC
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] DaVinci dm36x_rev1.2 variant 0x8
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 12192
[    0.000000] Kernel command line: mem=48M console=ttyS0,115200n8 noinitrd ip=off rw ubi.mtd=3,2048 rootfstype=ubifs root=ubi0:rootfs cmemk.phys_start=0x83000000 cmemk.phys_end=0x88000000 cmemk.phys_start_1=0x00001000 cmemk.phys_end_1=0x00008000 cmemk.pools_1=1x28672 cmemk.allowOverlap=1 cmemk.useHeapIfPoolUnavailable=1 nohz=off highres=off clocksource=acpi_pm lpj=1077248
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 48MB = 48MB total
[    0.000000] Memory: 44480k/44480k available, 4672k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     DMA     : 0xff000000 - 0xffe00000   (  14 MB)
[    0.000000]     vmalloc : 0xc3800000 - 0xfea00000   ( 946 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc3000000   (  48 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .init : 0xc0008000 - 0xc002c000   ( 144 kB)
[    0.000000]       .text : 0xc002c000 - 0xc03d6000   (3752 kB)
[    0.000000]       .data : 0xc03d6000 - 0xc03ff520   ( 166 kB)
[    0.000000] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptable hierarchical RCU implementation.
[    0.000000]  RCU-based detection of stalled CPUs is disabled.
[    0.000000]  Verbose stalled-CPUs detection is disabled.
[    0.000000] NR_IRQS:245
[    0.000000] Console: colour dummy device 80x30
[    0.000399] Calibrating delay loop (skipped) preset value.. 215.44 BogoMIPS (lpj=1077248)
[    0.000484] pid_max: default: 32768 minimum: 301
[    0.000792] Security Framework initialized
[    0.000999] Mount-cache hash table entries: 512
[    0.002201] CPU: Testing write buffer coherency: ok
[    0.004941] devtmpfs: initialized
[    0.010979] DaVinci: 8 gpio irqs
[    0.012017] NET: Registered protocol family 16
[    0.064671] dm365_rmd_cs_rdk_150_wl_init
[    0.064750] No entry for the specified index
[    0.067394] No entry for the specified index
[    0.192130] bio: create slab <bio-0> at 0
[    0.199416] SCSI subsystem initialized
[    0.205990] usbcore: registered new interface driver usbfs
[    0.208114] usbcore: registered new interface driver hub
[    0.209513] usbcore: registered new device driver usb
[    0.215131] vpss vpss: dm365_vpss vpss probed
[    0.215226] vpss vpss: dm365_vpss vpss probe success
[    0.221974] Advanced Linux Sound Architecture Driver Version 1.0.23.
[    0.227559] Switching to clocksource timer0_1
[    0.354570] NET: Registered protocol family 2
[    0.355054] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.356313] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[    0.356521] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.356653] TCP: Hash tables configured (established 2048 bind 2048)
[    0.356699] TCP reno registered
[    0.356759] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.356855] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.357705] NET: Registered protocol family 1
[    0.469332] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.472687] JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.481434] JFS: nTxBlock = 347, nTxLock = 2780
[    0.483434] msgmni has been set to 86
[    0.489764] io scheduler noop registered (default)
[    0.492754] CSL: Module install successful, device major num = 254
[    0.492824] CSL: Module version 0.10.00, built on Jan  6 2014 10:30:29
[    0.492898] I2C: Module install successful, device major num = 253
[    0.492956] DMA: Module install successful, device major num = 252
[    0.492999] DRV: Module install successful
[    0.493037] DRV: Module built on Jan  6 2014 10:30:41
[    0.493077] DRV: EDMACC.QUEPRI  = 00002777
[    0.493112] DRV: SYSTEM.MSTPRI0 = 00440011
[    0.493147] DRV: SYSTEM.MSTPRI1 = 00000444
[    0.493180] DRV: ISP.BCR        = 00000002
[    0.493215] DRV: SYSTEM.MISC    = 00000399
[    0.493249] EDMAK module: built on Jan  6 2014 at 10:28:58
[    0.493293]   Reference Linux version 2.6.37
[    0.493332]   File /home/still-image/Ipnc_rdk_v5_128Mnand/OV9715_Ver5_0/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/edma/src/module/edmak.c
[    0.495908] IRQK module: built on Jan  6 2014 at 10:12:21
[    0.495983]   Reference Linux version 2.6.37
[    0.496024]   File /home/still-image/Ipnc_rdk_v5_128Mnand/OV9715_Ver5_0/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/irq/src/module/irqk.c
[    0.498643] irqk initialized
[    0.498757] CMEMK module: built on Jan  6 2014 at 10:28:43
[    0.498815]   Reference Linux version 2.6.37
[    0.498856]   File /home/still-image/Ipnc_rdk_v5_128Mnand/OV9715_Ver5_0/dvsdk_ipnctools/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
[    0.506569] allocated heap buffer 0xc4000000 of size 0x5000000
[    0.506635] heap fallback enabled - will try heap if pool buffer is not available
[    0.506694] CMEM Range Overlaps Kernel Physical - allowing overlap
[    0.506745] CMEM phys_start (0x1000) overlaps kernel (0x80000000 -> 0x83000000)
[    0.506961] cmemk initialized
[    0.507042] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[    0.621316] serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A
[    1.158314] console [ttyS0] enabled
[    1.231109] serial8250.0: ttyS1 at MMIO 0x1d06000 (irq = 41) is a 16550A
[    1.274647] brd: module loaded
[    1.290667] NAND device: Manufacturer ID: 0x2c, Chip ID: 0x38 (Micron )
[    1.299266] Bad block table not found for chip 0
[    1.305859] Bad block table not found for chip 0
[    1.310666] Scanning device for bad blocks
[    1.759866] Creating 7 MTD partitions on "davinci_nand.0":
[    1.765556] 0x000000000000-0x000000600000 : "bootloader"
[    1.778535] 0x000000600000-0x000000a00000 : "params"
[    1.791595] 0x000000a00000-0x000000e00000 : "kernel"
[    1.804407] 0x000000e00000-0x000003600000 : "filesystem1"
[    1.817920] 0x000003600000-0x000003e00000 : "data1"
[    1.830859] 0x000003e00000-0x00000be00000 : "filesystem2"
[    1.844099] 0x00000be00000-0x000040000000 : "data2"
[    1.858381] davinci_nand davinci_nand.0: controller rev. 2.3
[    1.869169] UBI: attaching mtd3 to ubi0
[    1.873516] UBI: physical eraseblock size:   262144 bytes (256 KiB)
[    1.879836] UBI: logical eraseblock size:    258048 bytes
[    1.885512] UBI: smallest flash I/O unit:    2048
[    1.890407] UBI: sub-page size:              512
[    1.895067] UBI: VID header offset:          2048 (aligned 2048)
[    1.901212] UBI: data offset:                4096
[    2.041789] UBI: max. sequence number:       0
[    2.078440] UBI: volume 0 ("rootfs") re-sized from 151 to 154 LEBs
[    2.088659] UBI: attached mtd3 to ubi0
[    2.092613] UBI: MTD device name:            "filesystem1"
[    2.098149] UBI: MTD device size:            40 MiB
[    2.103212] UBI: number of good PEBs:        160
[    2.107866] UBI: number of bad PEBs:         0
[    2.112415] UBI: number of corrupted PEBs:   0
[    2.116890] UBI: max. allowed volumes:       128
[    2.121621] UBI: wear-leveling threshold:    4096
[    2.126360] UBI: number of internal volumes: 1
[    2.130894] UBI: number of user volumes:     1
[    2.135364] UBI: available PEBs:             0
[    2.139827] UBI: total number of reserved PEBs: 160
[    2.144799] UBI: number of PEBs reserved for bad PEB handling: 2
[    2.150900] UBI: max/mean erase counter: 1/0
[    2.155200] UBI: image sequence number:  1048529566
[    2.160215] UBI: background thread "ubi_bgt0d" started, PID 431
[    2.173580] spi_davinci spi_davinci.0: Controller at 0xfec66000
[    2.240164] davinci_mdio davinci_mdio.0: davinci mdio revision 1.4
[    2.246407] davinci_mdio davinci_mdio.0: no live phy, scanning all
[    2.253804] davinci_mdio: probe of davinci_mdio.0 failed with error -5
[    2.261610] Initializing USB Mass Storage driver...
[    2.267788] usbcore: registered new interface driver usb-storage
[    2.273971] USB Mass Storage support registered.
[    2.280293] i2c /dev entries driver
[    2.287335] Linux media interface: v0.10
[    2.292561] Linux video capture interface: v2.00
[    2.300802] vpbe-osd vpbe-osd: OSD sub device probe success
[    2.307763] vpbe-venc vpbe-venc: VENC sub device probe success
[    2.315217] vpbe-v4l2 vpbe-v4l2: vpbe v4l2 device registered
[    2.321728] Setting default output to Composite
[    2.326314] Setting default mode to ntsc
[    2.330566] vpbe-v4l2 vpbe-v4l2: Trying to register VPBE display device.
[    2.337313] vpbe-v4l2 vpbe-v4l2: layer=c2a1c800,layer->video_dev=c2a1c8e8
[    2.345895] vpbe-v4l2 vpbe-v4l2: Trying to register VPBE display device.
[    2.352951] vpbe-v4l2 vpbe-v4l2: layer=c2a1c600,layer->video_dev=c2a1c6e8
[    2.362960] watchdog watchdog: heartbeat 60 sec
[    2.376772] Error: Driver 'davinci-mcbsp' is already registered, aborting...
[    2.387615] ALSA device list:
[    2.391078]   No soundcards found.
[    2.396287] nf_conntrack version 0.5.0 (695 buckets, 2780 max)
[    2.405542] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.411693] TCP cubic registered
[    2.414988] NET: Registered protocol family 17



[   32.418933] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[   32.425125] UBIFS: file system size:   37158912 bytes (36288 KiB, 35 MiB, 144 LEBs)
[   32.432913] UBIFS: journal size:       5677056 bytes (5544 KiB, 5 MiB, 22 LEBs)
[   32.440339] UBIFS: media format:       w4/r0 (latest is w4/r0)
[   32.446204] UBIFS: default compressor: lzo
[   32.450398] UBIFS: reserved for root:  0 bytes (0 KiB)
[   32.472659] VFS: Mounted root (ubifs filesystem) on device 0:13.
[   32.483433] devtmpfs: mounted
[   32.486771] Freeing init memory: 144K
INIT: version 2.86 booting
[  160.367962] UBI: attaching mtd4 to ubi1
[  160.380915] UBI: physical eraseblock size:   262144 bytes (256 KiB)
[  160.387238] UBI: logical eraseblock size:    258048 bytes
[  160.410857] UBI: smallest flash I/O unit:    2048
[  160.415613] UBI: sub-page size:              512
[  160.420260] UBI: VID header offset:          2048 (aligned 2048)
[  160.440811] UBI: data offset:                4096
[  160.480694] UBI error: ubi_io_read: error -74 (ECC error) while reading 64 bytes from PEB 0:0, read 64 bytes
[  160.500951] UBI error: validate_ec_hdr: bad VID header offset 512, expected 2048
[  160.508403] UBI error: validate_ec_hdr: bad EC header
[  160.530879] UBI error: ubi_io_read_ec_hdr: validation failed for PEB 0
ubiattach: error!: cannot attach mtd4
           error 22 (Invalid argument)
libubi: error!: cannot get information about "/dev/ubi1"
        error 2 (No such file or directory)
ubimkvol: error!: error while probing "/dev/ubi1"
          error 2 (No such file or directory)
[  161.837608] UBIFS error (pid 499): ubifs_mount: cannot open "ubi1:ubifs_volume", error -19
mount: mounting ubi1:ubifs_volume on /mnt/nand failed: No such device
ubidetach: error!: cannot remove ubi1
           error 22 (Invalid argument)
ubiformat: mtd4 (nand), size 8388608 bytes (8.0 MiB), 32 eraseblocks of 262144 bytes (256.0 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 31 -- 100 % complete
ubiformat: 31 eraseblocks have valid erase counter, mean value is 0
ubiformat: 1 eraseblocks are supposedly empty
ubiformat: warning!: VID header and data offsets on flash are 512 and 2048, which is different to requested offsets 2048 and 4096
ubiformat: use new offsets 2048 and 4096? (yes/no)  yes
ubiformat: use offsets 2048 and 4096
ubiformat: formatting eraseblock 31 -- 100 % complete
[   42.480596] UBI: attaching mtd4 to ubi1
[   42.494179] UBI: physical eraseblock size:   262144 bytes (256 KiB)
[   42.500500] UBI: logical eraseblock size:    258048 bytes
[   42.514144] UBI: smallest flash I/O unit:    2048
[   42.518899] UBI: sub-page size:              512
[   42.523549] UBI: VID header offset:          2048 (aligned 2048)
[   42.544139] UBI: data offset:                4096
[   42.607706] UBI: max. sequence number:       0
[   43.414272] UBI: attached mtd4 to ubi1
[   43.418071] UBI: MTD device name:            "data1"
[   43.423070] UBI: MTD device size:            8 MiB
[   43.444234] UBI: number of good PEBs:        32
[   43.448815] UBI: number of bad PEBs:         0
[   43.453287] UBI: number of corrupted PEBs:   0
[   43.464165] UBI: max. allowed volumes:       128
[   43.468832] UBI: wear-leveling threshold:    4096
[   43.473565] UBI: number of internal volumes: 1
[   43.494179] UBI: number of user volumes:     0
[   43.498678] UBI: available PEBs:             26
[   43.503233] UBI: total number of reserved PEBs: 6
[   43.524142] UBI: number of PEBs reserved for bad PEB handling: 2
[   43.530205] UBI: max/mean erase counter: 1/0
[   43.544186] UBI: image sequence number:  891980687
[   43.549098] UBI: background thread "ubi_bgt1d" started, PID 508
UBI device number 1, total 32 LEBs (8257536 bytes, 7.9 MiB), available 26 LEBs (6709248 bytes, 6.4 MiB), LEB size 258048 bytes (252.0 KiB)
Set volume size to 6709248
Volume ID 0, size 26 LEBs (6709248 bytes, 6.4 MiB), LEB size 258048 bytes (252.0 KiB), dynamic, name "ubifs_volume", alignment 1
[   44.946890] UBIFS: default file-system created
[   45.841681] UBIFS: mounted UBI device 1, volume 0, name "ubifs_volume"
[   45.864164] UBIFS: file system size:   4128768 bytes (4032 KiB, 3 MiB, 16 LEBs)
[   45.871538] UBIFS: journal size:       2064385 bytes (2016 KiB, 1 MiB, 6 LEBs)
[   45.894108] UBIFS: media format:       w4/r0 (latest is w4/r0)
[   45.899994] UBIFS: default compressor: lzo
[   45.914165] UBIFS: reserved for root:  195011 bytes (190 KiB)
mknod: /dev/spidev0.0: File exists
Starting mounting local filesystems: mount mount: mounting /dev/root on / failed: No such file or directory
mount: mounting none on /dev/shm failed: No such file or directory
 failed (2: ).
Creat queue id:0
queue id:0
FileMngThread created
Creat queue id:32769
queue id:32769
AlramThread created
Share memory init success
queue id:32769
Creat queue id:65538
queue id:65538
Creat queue id:98307
queue id:98307
IPNC_DM368_5.1.0 (still-image@stillimage-VirtualBox) (gcc version 4.3.3 (GCC)
queue id:65538
[   48.166236] PHY 0:01 not found
[   48.169357] net eth0: could not connect to phy 0:01
net_search_gateway:eth0, 1A8C0, 0, 1
Check_device_version : DEVICE VER = 0 !!
Starting internet superserver: inetd
CPU is DM368

*****************************************************************

  IPNC BUILD VERSION: DM368 IPNC RDK V5.10.00.00

*****************************************************************

    Regards,

    Ankur

  • 0 in reply to Ankur Tank
    Expert 2985 points

    Forgot to put the link

    http://stackoverflow.com/questions/20917921/unable-to-attach-ubi-to-mtd-partition

    Regards,

    Ankur

  • 0 in reply to Ankur Tank
    Prodigy 90 points
    Why are you saying that you need page size of 2048 instead 4096? Shouldn't if fit the same pagesize of the nand?

    My kernel version is 3.12, and I have UBI kernel messages deactivated, so my output is no so informative as your. I've seen that il older kernel is simple to set them by adding "UBI debug" in menuconfig, but is not the same for my kernel version. So, I'm also trying to find the right way to enable them.

    I'll try with your parameters and rebuild the UBI image.
  • 0 in reply to Mauro Bressan
    Expert 2985 points
    I too didn't find any reply for that, NAND architecture is confusing thing, :(
    I had put question to different forums about it but didn't reply for that. Even block size i had tried was 256k instead of 512k.
  • 0 in reply to Ankur Tank
    Prodigy 90 points
    Here are two links where using page size og 4096
    https://support.criticallink.com/redmine/projects/armc8-platforms/wiki/UBIFS_Nand_Boot#Saving-uImage-on-ubifs-partition
    http://e2e.ti.com/support/arm/sitara_arm/f/791/p/214942/952527#pi239031349=5
  • 0 in reply to Mauro Bressan
    Guru 11260 points
    Hi Mauro,

    To get to the rootcause, I would suggest you to flash the filesystem from the kernel using mtd-utils as mentioned earlier in the post and
    test it. later what you can do is try writing some known data to NAND flash from uboot and try dumping the same from the kernel see that it matches If every thing is fine then it should be some issue with you ubifs command.

    Thanks,
    --Prabhakar Lad
  • 0 in reply to Prabhakar Lad
    Prodigy 90 points
    Hi Prabhakar,
    thanks for the reply.
    I was thinking on your suggest as well. After installing all the needed utilities I've done also this test.
    Of course something get wrong, but I'm supposing that this problem has a simple solution.
    Anyway i'm blocked at the first step of the proces to copy the UBI image on flash from userspace.
    So, there's no MTD device mounted: I can see all the mtd partition from u-boot, but the "mtdinfo" command says there's 0 MTD devices.
    Probably I forget to ass some device drivers from menuconfig.
    Could you show me a working config file?

    Hi Ankur, have you solved your problem?

    Mauro
  • 0 in reply to Mauro Bressan
    Prodigy 90 points

    Of course my problem had a stupid and an unuseful solution.

    The problem is that my custom board provide to deactivate the NAND flash  before the kernel booting, and this is why I was'nt able to mount the MTD devices.

    Thanks everybody.

    Mauro