Meraki MS220-8P: Difference between revisions

From Leo's Notes
This page was last edited on 14 January 2019, at 01:05.
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[    7.112000] 0x000000fc0000-0x000001000000 : "syslog"
[    7.112000] 0x000000fc0000-0x000001000000 : "syslog"
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=== Dumping Flash Data ===


The 16-Pin SOP for the MX25L12845E chip is as follows:
The 16-Pin SOP for the MX25L12845E chip is as follows:
Line 118: Line 121:
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loader1 and loader2 contains the boot code that brings the board up. Both partitions contain identical data.
Things of note:
 
* loader1 and loader2 contains the boot code that brings the board up. Both partitions contain identical data.
boot1 and boot2 contains the linux kernel. Both partitions also contain identical data.
* boot1 and boot2 contains the linux kernel. Both partitions also contain identical data.
 
* bootubi is the largest partition but only contains UBI headers every 0x1000 bytes.
Perhaps loader1+boot1 and loader2+boot2 contain the same data in case they intend to do firmware+kernel updates that can be reverted if needed?
* conf contains just these values: {{highlight|lang=text|code=
 
bootubi is the largest partition but only contains UBI headers every 0x1000 bytes.
 
conf contains just these values:
{{highlight|lang=text|code=
#@(#)VtssConfig
#@(#)VtssConfig
MAC=00:18:0a:02:03:04
MAC=00:18:0a:02:03:04
BOARDID=123456
BOARDID=123456
}}
}}
* rsvd, stackconf, and syslog partitions are completely filled with 0xFFs (ie. zero filled)
Perhaps loader1+boot1 and loader2+boot2 contain the same data in case they intend to do firmware+kernel updates that can be reverted if needed?


rsvd, stackconf, and syslog partitions are completely filled with 0xFFs (ie. zero filled)
There is no reference to the 3.


== Boot ==
== Boot ==

Revision as of 01:05, 14 January 2019

Meraki MS220-8P is a gigabit PoE switch by Cisco Meraki. Meraki switches are managed through Meraki's dashboard that resides on their servers and requires a license for the switch to function. This switch was given for free as part of a promotion by Meraki with a 3 year license.

License

The switch appears to function as a normal switch when it cannot contact the cloud servers. I am unsure if this is the case because my license has not expired yet -- though it still routes traffic as a normal switch even after a factory reset.


Hardware

The MS220-8P switch has:

  • Vitesse VSC7424XJG-02 SOC, MIPS 24KEc family
  • 128MB DDR2-800 RAM
  • 16MB Flash - initial booting?
  • 128MB Flash - OS, configs?

It also features 2 PSUs, one outputs 12V for the main board, and another 56V 2.6A unit for PoE. The switch will still boot when the PoE power supply is disconnected from mains voltage.

CPU & Memory

As noted by iHell in the new forum post, the CPU is a Vitesse VSC7424XJG-02 (Not sure if mine is the same as I do not want to take the heatsink off). The SOC according to the running kernel uses the MIPS 24KEc processor.

Memory is provided by a single K4T1G084QJ-BCE7 DDR2-800 5-5-5 SDRAM chip which has a capacity of 128MB.


Storage

There is a 16MB flash and a 128MB NAND flash on board. Both are marked with an orange marker near pin 1.

The NAND flash shows up on the boot log with 9 MTD partitions. 

[    5.586000] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xf1
[    5.593000] nand: Micron MT29F1G08ABADAWP
[    5.597000] nand: 128MiB, SLC, page size: 2048, OOB size: 64
[    5.609000] Scanning device for bad blocks
[    6.483000] m25p80 spi0.1: found mx25l12805d, expected m25p80
[    6.489000] m25p80 spi0.1: mx25l12805d (16384 Kbytes)
[    6.494000] 9 cmdlinepart partitions found on MTD device m25p80
[    6.500000] Creating 9 MTD partitions on "m25p80":
[    6.505000] 0x000000000000-0x000000040000 : "loader1"
[    6.665000] 0x000000040000-0x000000400000 : "boot1"
[    6.675000] 0x000000400000-0x000000440000 : "loader2"
[    6.722000] 0x000000440000-0x000000800000 : "boot2"
[    6.740000] 0x000000800000-0x000000880000 : "rsvd"
[    6.818000] 0x000000880000-0x000000e80000 : "bootubi"
[    6.942000] 0x000000e80000-0x000000ec0000 : "conf"
[    6.950000] 0x000000ec0000-0x000000fc0000 : "stackconf"
[    7.112000] 0x000000fc0000-0x000001000000 : "syslog"


Dumping Flash Data

The 16-Pin SOP for the MX25L12845E chip is as follows:

  1. NC/SIO3
  2. VCC
  3. NC
  4. PO2 - parallel data out/in, can be NC in serial mode
  5. PO1
  6. PO0
  7. CS# - chip select
  8. SO/SIO1/PO7 - Serial data output for 1x IO
  9. WP#/SIO2 - Write protection, connect to GND
  10. GND
  11. PO3
  12. PO4
  13. PO5
  14. PO6
  15. SI/SIO0 - Serial data input for 1x IO
  16. SCLK - clock input

To read the chip using flashrom, we can use 1x serial IO by connecting Vcc = 3.3v, Gnd, CS#, SCLK, SI, SO, and WP# = Gnd. That is, we should only need to connect to pins 2, 7, 8, 9, 10, 15, 16. The PO0-PO6 pins can be NC.

The Raspberry Pi should have this in /boot/config.txt: 

device_tree_param=spi=on

The /dev/spidev0.0 device should exist, and flashrom should function with this command. 

[root@alarmpi alarm]# flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=1000
flashrom v1.0 on Linux 4.14.92-1-ARCH (armv7l)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found Macronix flash chip "MX25L12805D" (16384 kB, SPI) on linux_spi.
Found Macronix flash chip "MX25L12835F/MX25L12845E/MX25L12865E" (16384 kB, SPI) on linux_spi.
Multiple flash chip definitions match the detected chip(s): "MX25L12805D", "MX25L12835F/MX25L12845E/MX25L12865E"
Please specify which chip definition to use with the -c <chipname> option.

Dump the data using -r filename. 

[root@alarmpi alarm]# flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=1000 -c "MX25L12835F/MX25L12845E/MX25L12865E"
flashrom v1.0 on Linux 4.14.92-1-ARCH (armv7l)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found Macronix flash chip "MX25L12835F/MX25L12845E/MX25L12865E" (16384 kB, SPI) on linux_spi.
No operations were specified.
[root@alarmpi alarm]# flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=300 -c "MX25L12835F/MX25L12845E/MX25L12865E" -r dump7.dat
flashrom v1.0 on Linux 4.14.92-1-ARCH (armv7l)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found Macronix flash chip "MX25L12835F/MX25L12845E/MX25L12865E" (16384 kB, SPI) on linux_spi.
Reading flash... done.

If you left the chip on the board like I did, the process might fail until the lights on board go out. The lights only went out after a long period of time. When powering the chip with 3.3v, the total power consumption the chip and the board consumed is about 0.27 watts (3.3v at 0.082A). Perhaps a processor somewhere finally timed out?


The dumped 16MB flash content shares the same layout printed in the boot log by the kernel. 

# loader1          262144      256        0.25MB
# boot1            3932160     3840       3MB
# loader2          262144      256        0.25MB
# boot2            3932160     3840       3MB
# rsvd             524288      512        0.5MB
# bootubi          8912896     8704       8MB
# conf             262144      256        0.25MB
# stackconf        1048576     1024       1MB
# syslog           262144      256        0.25MB

Things of note:

  • loader1 and loader2 contains the boot code that brings the board up. Both partitions contain identical data.
  • boot1 and boot2 contains the linux kernel. Both partitions also contain identical data.
  • bootubi is the largest partition but only contains UBI headers every 0x1000 bytes.
  • conf contains just these values: 
    #@(#)VtssConfig
MAC=00:18:0a:02:03:04
BOARDID=123456
  • rsvd, stackconf, and syslog partitions are completely filled with 0xFFs (ie. zero filled)

Perhaps loader1+boot1 and loader2+boot2 contain the same data in case they intend to do firmware+kernel updates that can be reverted if needed?

There is no reference to the 3.

Boot

Jumper 4 (J4) has the pinouts from left to right (from the center of the board): Vcc, Tx, Rx, Gnd. It is a serial port at 115200 baud. Vcc from this pin is approximately 3.2v which is lower than the 3.3 from my USB serial adapter, so I only connected ground, Tx to Rx, and Rx to Tx on the board.

When power is applied to the board, the system boots. The output from it booting is given below. 

LinuxLoader built Nov 12 2014 18:01:50
init_pll ok
init_spi ok
init_memctl ok
wait_memctl ok
Training DRAM ok
init_irq ok
init_dram_uncached ok
init_icache ok
init_dcache ok
enable_caches ok
init_board ok
Low level initialization complete, exiting boot mode
[    0.000000] Linux version 3.18.102-meraki-elemental (ssegal@sf201.meraki.com) (gcc version 5.4.0 (GCC) ) #1 Fri Apr 13 11:18:08 PDT 2018
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 02019654 (MIPS 24KEc)
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 00317000 @ 00100000 (usable)
[    0.000000]  memory: 00079000 @ 00417000 (usable after init)
[    0.000000] User-defined physical RAM map:
[    0.000000]  memory: 07ff0000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00000000-0x07feffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00000000-0x07feffff]
[    0.000000] Initmem setup node 0 [mem 0x00000000-0x07feffff]
[    0.000000] Reserving 0MB of memory at 0MB for crashkernel
[    0.000000] Primary instruction cache 32kB, 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: 32496
[    0.000000] Kernel command line:  console=ttyS0,115200 mtdparts=m25p80:0x40000(loader1),0x3c0000(boot1),0x40000(loader2),0x3c0000(boot2),0x80000(rsvd),0x600000(bootubi),0x40000(conf),0x100000(stackconf),0x40000(syslog) ubi.mtd=bootubi ubi.mtd=gen_nand.0 mem=134152192
[    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=8005040c
[    0.000000] Readback ErrCtl register=8005040c
[    0.000000] Cache parity protection enabled
[    0.000000] Memory: 125064K/131008K available (2655K kernel code, 135K rwdata, 364K rodata, 484K init, 101K bss, 5944K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:66
[    0.000000] sched_clock: 32 bits at 1kHz, resolution 1000000ns, wraps every 2147483648000000ns
[    0.001000] Calibrating delay loop... 276.99 BogoMIPS (lpj=138496)
[    0.012000] pid_max: default: 32768 minimum: 301
[    0.013000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.014000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.020000] devtmpfs: initialized
[    0.023000] NET: Registered protocol family 16
[    0.049000] Switched to clocksource MIPS
[    0.059000] NET: Registered protocol family 2
[    0.066000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.073000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.079000] TCP: Hash tables configured (established 1024 bind 1024)
[    0.085000] TCP: reno registered
[    0.089000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.095000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.101000] NET: Registered protocol family 1
[    0.644000] VCORE-III Watchdog Timer enabled (30 seconds).  Prev boot was not caused by WDT reset.
[    0.654000] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.676000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.682000] msgmni has been set to 244
[    0.717000] io scheduler noop registered
[    0.721000] io scheduler deadline registered (default)
[    0.727000] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    0.735000] console [ttyS0] disabled
[    0.739000] serial8250.0: ttyS0 at MMIO 0x70100000 (irq = 14, base_baud = 13020833) is a 16550A
[    0.747000] console [ttyS0] enabled
[    0.747000] console [ttyS0] enabled
[    0.754000] bootconsole [early0] disabled
[    0.754000] bootconsole [early0] disabled
[    0.765000] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xf1
[    0.772000] nand: Micron MT29F1G08ABADAWP
[    0.776000] nand: 128MiB, SLC, page size: 2048, OOB size: 64
[    0.787000] Scanning device for bad blocks
[    0.904000] m25p80 spi0.1: found mx25l12805d, expected m25p80
[    0.910000] m25p80 spi0.1: mx25l12805d (16384 Kbytes)
[    0.915000] 9 cmdlinepart partitions found on MTD device m25p80
[    0.921000] Creating 9 MTD partitions on "m25p80":
[    0.926000] 0x000000000000-0x000000040000 : "loader1"
[    0.935000] 0x000000040000-0x000000400000 : "boot1"
[    0.943000] 0x000000400000-0x000000440000 : "loader2"
[    0.955000] 0x000000440000-0x000000800000 : "boot2"
[    0.962000] 0x000000800000-0x000000880000 : "rsvd"
[    0.974000] 0x000000880000-0x000000e80000 : "bootubi"
[    0.981000] 0x000000e80000-0x000000ec0000 : "conf"
[    0.992000] 0x000000ec0000-0x000000fc0000 : "stackconf"
[    1.001000] 0x000000fc0000-0x000001000000 : "syslog"
[    1.012000] i2c /dev entries driver
[    1.017000] TCP: cubic registered
[    1.020000] NET: Registered protocol family 17
[    1.025000] 8021q: 802.1Q VLAN Support v1.8
[    1.029000] Meraki MS220-8 board detected
[    1.034000] i2c-gpio i2c-gpio.1: using pins 6 (SDA) and 5 (SCL)
[    1.054000] UBI: attaching mtd6 to ubi0
[    2.061000] UBI: scanning is finished
[    2.102000] UBI: attached mtd6 (name "bootubi", size 6 MiB) to ubi0
[    2.109000] UBI: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes
[    2.115000] UBI: min./max. I/O unit sizes: 1/256, sub-page size 1
[    2.121000] UBI: VID header offset: 64 (aligned 64), data offset: 128
[    2.128000] UBI: good PEBs: 1536, bad PEBs: 0, corrupted PEBs: 0
[    2.134000] UBI: user volume: 0, internal volumes: 1, max. volumes count: 23
[    2.141000] UBI: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 4249467862
[    2.150000] UBI: available PEBs: 1532, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0
[    2.159000] UBI: background thread "ubi_bgt0d" started, PID 222
[    2.165000] UBI: attaching mtd0 to ubi1
[    2.895000] UBI: scanning is finished
[    2.932000] UBI: attached mtd0 (name "gen_nand.0", size 128 MiB) to ubi1
[    2.939000] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 129024 bytes
[    2.946000] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 512
[    2.952000] UBI: VID header offset: 512 (aligned 512), data offset: 2048
[    2.959000] UBI: good PEBs: 1024, bad PEBs: 0, corrupted PEBs: 0
[    2.965000] UBI: user volume: 12, internal volumes: 1, max. volumes count: 128
[    2.972000] UBI: max/mean erase counter: 1536/683, WL threshold: 4096, image sequence number: 1363641321
[    2.982000] UBI: available PEBs: 462, total reserved PEBs: 562, PEBs reserved for bad PEB handling: 20
[    2.991000] UBI: background thread "ubi_bgt1d" started, PID 228
[    3.062000] devtmpfs: mounted
[    3.075000] Freeing unused kernel memory: 484K
[    3.083000] random: init urandom read with 43 bits of entropy available
[    3.091000] Made it into bootsh: Apr 13 2018 11:17:18
[    3.096000] bootsh build T-201804131017-Gcbd29c59-ssegal
[    3.248000] UBIFS: background thread "ubifs_bgt1_4" started, PID 313
[    3.302000] UBIFS: recovery needed
[    3.681000] UBIFS: recovery completed
[    3.685000] UBIFS: mounted UBI device 1, volume 4, name "storage"
[    3.691000] UBIFS: LEB size: 129024 bytes (126 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    3.700000] UBIFS: FS size: 7354368 bytes (7 MiB, 57 LEBs), journal size 1032193 bytes (0 MiB, 6 LEBs)
[    3.710000] UBIFS: reserved for root: 347364 bytes (339 KiB)
[    3.715000] UBIFS: media format: w4/r0 (latest is w4/r0), UUID 2EA2ACA1-07FA-472B-BC2D-F0F2DB4314D3, small LPT model
In manufacturing: FALSE
In rma mode: FALSE
[    8.624000] random: nonblocking pool is initialized
[   12.126000] kexec: Starting new kernel
[   12.130000] Will call new kernel at 0047a4f0
[   12.130000] Bye ...
[    0.000000] Linux version 3.18.57-meraki-elemental (jenkins@dal247.meraki.com) (gcc version 5.4.0 (GCC) ) #2 Fri Aug 24 13:22:04 PDT 2018
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 02019654 (MIPS 24KEc)
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 0046d000 @ 00100000 (usable)
[    0.000000]  memory: 00cb3000 @ 0056d000 (usable after init)
[    0.000000] User-defined physical RAM map:
[    0.000000]  memory: 07ff0000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00000000-0x07feffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00000000-0x07feffff]
[    0.000000] Initmem setup node 0 [mem 0x00000000-0x07feffff]
[    0.000000] Reserving 0MB of memory at 0MB for crashkernel
[    0.000000] Primary instruction cache 32kB, 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: 32496
[    0.000000] Kernel command line:  console=ttyS0,115200 mtdparts=m25p80:0x40000(loader1),0x3c0000(boot1),0x40000(loader2),0x3c0000(boot2),0x80000(rsvd),0x600000(bootubi),0x40000(conf),0x100000(stackconf),0x40000(syslog) ubi.mtd=bootubi ubi.mtd=gen_nand.0 mem=0x7FF0000 ramoops.mem_address=0x7FF0000 ramoops.mem_size=0x10000 ramoops.block_size=0x10000
[    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=8005040c
[    0.000000] Readback ErrCtl register=8005040c
[    0.000000] Cache parity protection enabled
[    0.000000] Memory: 111160K/131008K available (3592K kernel code, 195K rwdata, 736K rodata, 13004K init, 119K bss, 19848K reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:66
[    0.000000] sched_clock: 32 bits at 1kHz, resolution 1000000ns, wraps every 2147483648000000ns
[    0.002000] Calibrating delay loop... 276.99 BogoMIPS (lpj=138496)
[    0.013000] pid_max: default: 32768 minimum: 301
[    0.014000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.015000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.018000] ftrace: allocating 12018 entries in 24 pages
[    0.045000] Performance counters: mips/24K PMU enabled, 2 32-bit counters available to each CPU, irq -1 (share with timer interrupt)
[    0.052000] devtmpfs: initialized
[    0.058000] NET: Registered protocol family 16
[    0.059000] ramoops: using module parameters
[    0.060000] pstore: Registered ramoops as persistent store backend
[    0.061000] ramoops: attached 0x10000@0x7ff0000, ecc: 0/0
[    0.123000] Switched to clocksource MIPS
[    0.163000] NET: Registered protocol family 2
[    0.170000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.177000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.183000] TCP: Hash tables configured (established 1024 bind 1024)
[    0.190000] TCP: reno registered
[    0.193000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.199000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.206000] NET: Registered protocol family 1
[    4.456000] VCORE-III Watchdog Timer enabled (30 seconds).  Prev boot was not caused by WDT reset.
[    4.467000] futex hash table entries: 256 (order: -1, 3072 bytes)
[    4.499000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    4.505000] msgmni has been set to 217
[    5.276000] io scheduler noop registered
[    5.280000] io scheduler deadline registered (default)
[    5.433000] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    5.466000] console [ttyS0] disabled
[    5.470000] serial8250.0: ttyS0 at MMIO 0x70100000 (irq = 14, base_baud = 13020833) is a 16550A
[    5.479000] console [ttyS0] enabled
[    5.479000] console [ttyS0] enabled
[    5.486000] bootconsole [early0] disabled
[    5.486000] bootconsole [early0] disabled
[    5.586000] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xf1
[    5.593000] nand: Micron MT29F1G08ABADAWP
[    5.597000] nand: 128MiB, SLC, page size: 2048, OOB size: 64
[    5.609000] Scanning device for bad blocks
[    6.483000] m25p80 spi0.1: found mx25l12805d, expected m25p80
[    6.489000] m25p80 spi0.1: mx25l12805d (16384 Kbytes)
[    6.494000] 9 cmdlinepart partitions found on MTD device m25p80
[    6.500000] Creating 9 MTD partitions on "m25p80":
[    6.505000] 0x000000000000-0x000000040000 : "loader1"
[    6.665000] 0x000000040000-0x000000400000 : "boot1"
[    6.675000] 0x000000400000-0x000000440000 : "loader2"
[    6.722000] 0x000000440000-0x000000800000 : "boot2"
[    6.740000] 0x000000800000-0x000000880000 : "rsvd"
[    6.818000] 0x000000880000-0x000000e80000 : "bootubi"
[    6.942000] 0x000000e80000-0x000000ec0000 : "conf"
[    6.950000] 0x000000ec0000-0x000000fc0000 : "stackconf"
[    7.112000] 0x000000fc0000-0x000001000000 : "syslog"
[    7.143000] tun: Universal TUN/TAP device driver, 1.6
[    7.148000] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[    7.392000] i2c /dev entries driver
[    7.398000] TCP: cubic registered
[    7.402000] Initializing XFRM netlink socket
[    7.409000] NET: Registered protocol family 10
[    7.429000] NET: Registered protocol family 17
[    7.434000] NET: Registered protocol family 15
[    7.438000] 8021q: 802.1Q VLAN Support v1.8
[    7.443000] Meraki MS220-8 board detected
[    7.506000] i2c-gpio i2c-gpio.1: using pins 6 (SDA) and 5 (SCL)
[    7.614000] UBI: attaching mtd6 to ubi0
[    8.462000] random: nonblocking pool is initialized
[    9.373000] UBI: scanning is finished
[    9.418000] UBI: attached mtd6 (name "bootubi", size 6 MiB) to ubi0
[    9.424000] UBI: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes
[    9.431000] UBI: min./max. I/O unit sizes: 1/256, sub-page size 1
[    9.437000] UBI: VID header offset: 64 (aligned 64), data offset: 128
[    9.443000] UBI: good PEBs: 1536, bad PEBs: 0, corrupted PEBs: 0
[    9.450000] UBI: user volume: 0, internal volumes: 1, max. volumes count: 23
[    9.457000] UBI: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 4249467862
[    9.466000] UBI: available PEBs: 1532, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0
[    9.477000] UBI: background thread "ubi_bgt0d" started, PID 414
[    9.500000] UBI: attaching mtd0 to ubi1
[   10.247000] UBI: scanning is finished
[   10.291000] UBI: attached mtd0 (name "gen_nand.0", size 128 MiB) to ubi1
[   10.298000] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 129024 bytes
[   10.304000] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 512
[   10.311000] UBI: VID header offset: 512 (aligned 512), data offset: 2048
[   10.318000] UBI: good PEBs: 1024, bad PEBs: 0, corrupted PEBs: 0
[   10.324000] UBI: user volume: 12, internal volumes: 1, max. volumes count: 128
[   10.331000] UBI: max/mean erase counter: 1536/683, WL threshold: 4096, image sequence number: 1363641321
[   10.341000] UBI: available PEBs: 462, total reserved PEBs: 562, PEBs reserved for bad PEB handling: 20
[   10.350000] UBI: background thread "ubi_bgt1d" started, PID 418
[   11.514000] devtmpfs: mounted
[   11.736000] Freeing unused kernel memory: 13004K (8056d000 - 81220000)
[   12.041000] Made it into bootsh: Aug 24 2018 13:15:33
[   12.047000] bootsh build switch-10-201808241214-G0a4ba17b-rel-owner
[   12.203000] UBIFS: background thread "ubifs_bgt1_4" started, PID 564
[   12.296000] UBIFS: recovery needed
[   12.599000] UBIFS: recovery completed
[   12.603000] UBIFS: mounted UBI device 1, volume 4, name "storage"
[   12.610000] UBIFS: LEB size: 129024 bytes (126 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[   12.619000] UBIFS: FS size: 7354368 bytes (7 MiB, 57 LEBs), journal size 1032193 bytes (0 MiB, 6 LEBs)
[   12.628000] UBIFS: reserved for root: 347364 bytes (339 KiB)
[   12.634000] UBIFS: media format: w4/r0 (latest is w4/r0), UUID 2EA2ACA1-07FA-472B-BC2D-F0F2DB4314D3, small LPT model
In manufacturing: FALSE
In rma mode: FALSE
init started: BusyBox v1.25.1 (2018-08-24 12:51:28 PDT)
WARNING! THIS CONSOLE IS LOGGED! UNAUTHORIZED ACCESS FORBIDDEN!
<Meraki> [   13.674000] sysctl: error: 'kernel.softlockup_panic' is an unknown key
[   13.682000] sysctl: error: 'kernel.watchdog_thresh' is an unknown key
[   13.926000] sh: write error: Device or resource busy
[   14.039000] vtss_core: module license '(c) Vitesse Semiconductor Inc.' taints kernel.
[   14.047000] Disabling lock debugging due to kernel taint
[   14.647000] switch: 'Meraki MS220-8' board detected
[   15.621000] sysctl -w vm.panic_on_oom=2
[   15.648000] vm.panic_on_oom = 2
[   16.204000] click: starting router thread pid 744 (8081d000)
[   17.055000] Single synchronous check for reset
[   17.363000]
[   17.400000] boot 32 build switch-10-201808241214-G0a4ba17b-rel-owner board elemental mac 0C:8D:DB:7E:D7:76
[   17.436000] Module: vtss_core  .text=0xc1411000 .data=0xc14a90b0 .bss=0xc14a9320
[   17.436000] Module: proclikefs  .text=0xc007c000 .data= .bss=0xc007d040
[   17.436000] Module: merakiclick  .text=0xc182c000 .data=0xc197c800 .bss=0xc197ca80
[   17.436000] Module: elts_meraki  .text=0xc1f59000 .data=0xc224faa0 .bss=0xc22513d0
[   17.436000] Module: vc_click  .text=0xc23ba000 .data=0xc23ebfa0 .bss=0xc23ec130
[   17.598000] ls -1 /sys/fs/pstore/dmesg-ramoops-* 2>/dev/null
[   17.630000] /usr/bin/check_bootreason: reading file : No such file or directory
[   20.435000] !!!!! {/usr/bin/switch_brain} opening /click/switch_port_table/dump_stack_info_and_reset_stack_change failed: No such file or directory
[   22.515000] chatter: from_sw0 :: FromVitesse: initializing fdma
[   23.743000] chatter: dhcp_tracker :: DHCPTracker: skipping undersized restore buffer (buf size: 0)
[   25.112000] !!!!! {/usr/bin/switch_brain} failed writing /click/switch_port_table/set_port_storm_control  errno 2 len 211 data: "PORT 1, ENABLED true\nPORT 2, ENABLED ..."
[   26.079000] chatter: big_acl :: BigACL: skipping undersized restore buffer (buf size: 0)
<Meraki> ^CWARNING! THIS CONSOLE IS LOGGED! UNAUTHORIZED ACCESS FORBIDDEN!

Hitting Ctrl+c will show the <Meraki> prompt but the prompt does not accept any commands.


See Also

Source

Open source code can be found at: