[FS#35] mynet-n750 factory images don't find root partition - Task opened

Tue Jun 28 16:43:03 PDT 2016

A new Flyspray task has been opened.  Details are below. 

User who did this - Steven Haigh (CRCinAU) 

Attached to Project - LEDE Project
Summary - mynet-n750 factory images don't find root partition
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - The LEDE Project factory images do not boot when flashed from either the web interface or the emergency recovery web site.

Boot logs as of r813:
verify_seama: data=0x81000000, size=3406568
SEAMA ==========================================
  magic      : 5ea3a417
  meta size  : 24 bytes
  meta data  : signature=wrgnd13_wd_av
  image size : 0 bytes
================================================
SEAMA ==========================================
  magic      : 5ea3a417
  meta size  : 36 bytes
  meta data  : dev=/dev/mtdblock/1
  meta data  : type=firmware
  meta data  :
  meta data  :
  image size : 3406464 bytes
  checksum   : 8969D9077B2CAAF8CE87548FC252A30A
  digest     : 8969D9077B2CAAF8CE87548FC252A30A
  Selected !!!
================================================
(ENV) begin addr=0x9f070000,end=0x9ffeffff
Erase Flash from 0x9f070000 to 0x9ffeffff in Bank # 1
First 0x7 last 0xfe sector size 0x10000                                                                                                                                                                                                   254
Erased 248 sectors
write addr: 9f070000

Write runtime image into flash...OK,dest addr=0x9f070000
Upload file OK!

U-Boot 1.1.4 (Mar 26 2012 - 21:53:42)

SVN revision: 51
Target board: WRG-ND13

DRAM:
sri
Wasp 1.2
wasp_ddr_initial_config(255): (32bit) ddr2 init
128 MB
Top of RAM usable for U-Boot at: 88000000
Reserving 242k for U-Boot at: 87fc0000
Reserving 192k for malloc() at: 87f90000
Reserving 44 Bytes for Board Info at: 87f8ffd4
Reserving 36 Bytes for Global Data at: 87f8ffb0
Reserving 128k for boot params() at: 87f6ffb0
Stack Pointer at: 87f6ff98
Now running in RAM - U-Boot at: 87fc0000
id read 0x100000ff
flash size 16 MB, sector count = 256
Flash: 16 MB
pci_init_board: PCIe PLL not set for 40MHz refclk
In:    serial
Out:   serial
Err:   serial
Net:   ag934x_enet_initialize...
 wasp  reset mask:c03300
WASP  ----> S17 PHY *
: cfg1 0x7 cfg2 0x7114
eth0: 00:90:a9:ad:67:21
athrs17_reg_init: complete
eth0 up
GIGA: athrs17_link_down all port...
eth0
Hit any key to stop autoboot:  0
## Booting image at 9f070000 ...
Verifying Checksum ...
Uncompressing SEAMA linux.lzma ... OK
do_boot_linux entry = 80002000
## Transferring control to Linux (at address 00000000) ...
## Giving linux memsize in bytes, 134217728

Starting kernel ...

OpenWrt kernel loader for AR7XXX/AR9XXX
Copyright (C) 2011 Gabor Juhos 
Decompressing kernel... done!
Starting kernel at 80060000...

[    0.000000] Linux version 4.4.14 (openwrt at openwrt.crc.id.au) (gcc version 5.3.0 (LEDE GCC 5.3.0 r418) ) #2 Tue Jun 28 14:07:32 UTC 2016
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 0001974c (MIPS 74Kc)
[    0.000000] SoC: Atheros AR9344 rev 2
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 08000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] No valid device tree found, continuing without
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
[    0.000000] Kernel command line: board=MYNET-N750 console=ttyS0,115200 mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,64k(devdata)ro,64k(devconf)ro,15872k(firmware),64k(radiocfg)ro rootfstype=squashfs,jffs2 noinitrd
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 125008K/131072K available (3058K kernel code, 162K rwdata, 768K rodata, 292K init, 205K bss, 6064K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:51
[    0.000000] Clocks: CPU:560.000MHz, DDR:480.000MHz, AHB:240.000MHz, Ref:40.000MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6825930166 ns
[    0.000010] sched_clock: 32 bits at 280MHz, resolution 3ns, wraps every 7669584382ns
[    0.008295] Calibrating delay loop... 278.93 BogoMIPS (lpj=1394688)
[    0.081138] pid_max: default: 32768 minimum: 301
[    0.086170] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.093222] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.103130] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.114813] NET: Registered protocol family 16
[    0.120895] MIPS: machine is WD My Net N750
[    0.152462] registering PCI controller with io_map_base unset
[    0.401712] PCI host bridge to bus 0000:00
[    0.406082] pci_bus 0000:00: root bus resource [mem 0x10000000-0x13ffffff]
[    0.413443] pci_bus 0000:00: root bus resource [io  0x0000]
[    0.419372] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    0.426607] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.435105] pci 0000:00:00.0: invalid calibration data
[    0.441018] pci 0000:00:00.0: BAR 0: assigned [mem 0x10000000-0x1001ffff 64bit]
[    0.448817] pci 0000:00:00.0: BAR 6: assigned [mem 0x10020000-0x1002ffff pref]
[    0.456533] pci 0000:00:00.0: using irq 40 for pin 1
[    0.462678] clocksource: Switched to clocksource MIPS
[    0.469411] NET: Registered protocol family 2
[    0.474938] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.482368] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.489178] TCP: Hash tables configured (established 1024 bind 1024)
[    0.496027] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.502253] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.509216] NET: Registered protocol family 1
[    0.514876] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.538034] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.544301] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.557084] io scheduler noop registered
[    0.561270] io scheduler deadline registered (default)
[    0.567034] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.576566] console [ttyS0] disabled
[    0.600439] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 2500000) is a 16550A
[    0.609633] console [ttyS0] enabled
[    0.609633] console [ttyS0] enabled
[    0.617055] bootconsole [early0] disabled
[    0.617055] bootconsole [early0] disabled
[    0.630332] m25p80 spi0.0: found mx25l12805d, expected m25p80
[    0.636239] m25p80 spi0.0: mx25l12805d (16384 Kbytes)
[    0.641394] 6 cmdlinepart partitions found on MTD device spi0.0
[    0.647415] Creating 6 MTD partitions on "spi0.0":
[    0.652285] 0x000000000000-0x000000040000 : "u-boot"
[    0.659357] 0x000000040000-0x000000050000 : "u-boot-env"
[    0.666314] 0x000000050000-0x000000060000 : "devdata"
[    0.673008] 0x000000060000-0x000000070000 : "devconf"
[    0.679646] 0x000000070000-0x000000ff0000 : "firmware"
[    0.719345] 0x000000ff0000-0x000001000000 : "radiocfg"
[    1.732792] switch0: Atheros AR8327 rev. 2 switch registered on ag71xx-mdio.0
[    1.799647] libphy: ag71xx_mdio: probed
[    3.391236] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:00 [uid=004dd033, driver=Atheros AR8216/AR8236/AR8316]
[    3.402671] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:RGMII
[    3.411028] NET: Registered protocol family 10
[    3.419183] NET: Registered protocol family 17
[    3.423820] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[    3.436672] Bridge firewalling registered
[    3.440862] 8021q: 802.1Q VLAN Support v1.8
[    3.447760] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[    3.455394] Please append a correct "root=" boot option; here are the available partitions:
[    3.463882] 1f00             256 mtdblock0  (driver?)
[    3.469016] 1f01              64 mtdblock1  (driver?)
[    3.474154] 1f02              64 mtdblock2  (driver?)
[    3.479284] 1f03              64 mtdblock3  (driver?)
[    3.484424] 1f04           15872 mtdblock4  (driver?)
[    3.489554] 1f05              64 mtdblock5  (driver?)
[    3.494692] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    3.503948] Rebooting in 1 seconds..

The missing magic line seems to be:
[    0.715565] 2 seama-fw partitions found on MTD device firmware

I *CAN* install openwrt-15.05.1-ar71xx-generic-mynet-n750-squashfs-factory.bin, then sysupgrade to r813 sysupgrade image without a problem.

I built r813 with a test patch from jow: http://openwrt.crc.id.au/r813/EXTRA_PATCHES/00-try-to-fix-factory-images.patch

This did not fix the factory images. I tested as far back as r555 - which also did not boot correctly when flashed via the emergency httpsvr in uboot.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=35