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Opened 5 years ago

Last modified 2 years ago

#12110 reopened defect

ramips VFS: Cannot open root device "(null)" or unknown-block(0,0)

Reported by: anonymous Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: kernel Version: Trunk
Keywords: Cc:

Description

[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU revision is: 0001974c (MIPS 74Kc)
[ 0.000000] Ralink RT3883 ver:1 eco:5 running at 500.00 MHz
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 02000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone PFN ranges:
[ 0.000000] Normal 0x00000000 -> 0x00002000
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] Early memory PFN ranges
[ 0.000000] 0: 0x00000000 -> 0x00002000
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
[ 0.000000] Kernel command line: board=RT-N56U console=ttyS1,57600 mtdparts=physmap-flash.0:192k(u-boot)ro,64k(u-boot-env)ro,64k(factory)ro,896k(kernel),6976k(rootfs),7872k@0x50000(firmware) rootfstype=squashfs,jffs2
[ 0.000000] MIPS: no machine found for id 'RT-N56U', supported machines:
[ 0.000000] id name
[ 0.000000] Generic Generic Ralink board
[ 0.000000] PID hash table entries: 128 (order: -3, 512 bytes)
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 29912k/32768k available (1941k kernel code, 2856k reserved, 332k data, 164k init, 0k highmem)
[ 0.000000] SLUB: Genslabs=9, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:140
[ 0.000000] console [ttyS1] enabled, bootconsole disabled
[ 0.000000] console [ttyS1] enabled, bootconsole disabled
[ 0.010000] Calibrating delay loop... 249.44 BogoMIPS (lpj=1247232)
[ 0.080000] pid_max: default: 32768 minimum: 301
[ 0.080000] Mount-cache hash table entries: 512
[ 0.090000] NET: Registered protocol family 16
[ 0.100000] MIPS: machine is Generic Ralink board
[ 0.110000] bio: create slab <bio-0> at 0
[ 0.120000] Switching to clocksource MIPS
[ 0.130000] NET: Registered protocol family 2
[ 0.140000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.150000] TCP established hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.170000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.180000] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.190000] TCP reno registered
[ 0.200000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.210000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.220000] NET: Registered protocol family 1
[ 0.250000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.260000] JFFS2 version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.280000] msgmni has been set to 58
[ 0.290000] io scheduler noop registered
[ 0.300000] io scheduler deadline registered (default)
[ 0.310000] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 0.320000] serial8250: ttyS0 at MMIO 0x10000500 (irq = 13) is a 16550A
[ 0.330000] serial8250: ttyS1 at MMIO 0x10000c00 (irq = 20) is a 16550A
[ 0.350000] physmap-flash.0: failed to claim resource 0
[ 0.360000] Generic platform RAM MTD, (c) 2004 Simtec Electronics
[ 0.370000] TCP cubic registered
[ 0.380000] NET: Registered protocol family 17
[ 0.390000] 8021q: 802.1Q VLAN Support v1.8
[ 0.400000] VFS: Cannot open root device "(null)" or unknown-block(0,0)
[ 0.410000] Please append a correct "root=" boot option; here are the available partitions:
[ 0.430000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Attachments (3)

flash-CC_15_05.log (19.6 KB) - added by bernie 2 years ago.
ChaosCalmer-15.05
moonman-flash-r46006.log (19.7 KB) - added by bernie 2 years ago.
Moonman - r46006
moonman-flash-r44627.log (19.8 KB) - added by bernie 2 years ago.
Moonman - r44627

Download all attachments as: .zip

Change History (11)

comment:1 Changed 5 years ago by anonymous

[ 0.350000] physmap-flash.0: failed to claim resource 0
[ 0.360000] Generic platform RAM MTD, (c) 2004 Simtec Electronics
[ 0.370000] TCP cubic registered
[ 0.380000] NET: Registered protocol family 17
[ 0.390000] 8021q: 802.1Q VLAN Support v1.8
[ 0.400000] VFS: Cannot open root device "(null)" or unknown-block(0,0)
[ 0.410000] Please append a correct "root=" boot option; here are the available partitions:
[ 0.430000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

comment:1 Changed 5 years ago by anonymous

[ 0.350000] physmap-flash.0: failed to claim resource 0
[ 0.360000] Generic platform RAM MTD, (c) 2004 Simtec Electronics
[ 0.370000] TCP cubic registered
[ 0.380000] NET: Registered protocol family 17
[ 0.390000] 8021q: 802.1Q VLAN Support v1.8
[ 0.400000] VFS: Cannot open root device "(null)" or unknown-block(0,0)
[ 0.410000] Please append a correct "root=" boot option; here are the available partitions:
[ 0.430000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

comment:3 Changed 5 years ago by nbd

  • Resolution set to too_vague
  • Status changed from new to closed

seems like a wrong kernel config change or something else wrong with the build. can't really tell because a lot of information is missing, e.g. what openwrt version was used.

comment:4 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

Changed 2 years ago by bernie

ChaosCalmer-15.05

Changed 2 years ago by bernie

Moonman - r46006

Changed 2 years ago by bernie

Moonman - r44627

comment:5 Changed 2 years ago by bernie

I was trying to install some of the latest firmware packages for the ASUS RT-N56U (not B1!) router and ended up with the same kernel panic as described above.

At least following versions are concerned:

  • ChaosCalmer 15.05 (squashfs-package from openwrt-website)
  • Moonman build - v46006
  • Moonman build - v44627

I then decided to give BarrierBreaker 14.07 a try and was somewhat surprised that the sytstem started up without any problems.
Can anyone tell from the bootlogs what the problem may be?
Also I wonder why nobody else seems to have made similar observation with ChaosCalmer and the RT-N56U... .

Find the bootlogs above...
-bernie

comment:6 Changed 2 years ago by bernie

  • Resolution too_vague deleted
  • Status changed from closed to reopened

comment:7 Changed 2 years ago by bernie

Workaround
I sucessfully upgraded from Barrier Breaker 14.07 to Chaos Calmer 15.05 r46006 using the sysupgrade-image by Moonman. Yet, the inital flash files don't work... .

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