Switch not booting
Posted: 14 Sep 2025 07:29
Hello,
I have a 6360 switch stuck in a boot loop. The Console output when booting is as follows:
The switch is unresponsive to keyboard input. I Thought the com settings are incorrect so I tryed with baud speed 115200 and the only change is that the switch outputs this instead (in a loop).
I created a rescue USB and iserteed it before and during rebooting and nothing happens. I also tryed to different USB drives, an old 1GB and a newer 32GB and none worked. I formated both in fat32 and put the rescue image file Narescue.img, 6360/certified/Nosa.img and 6360/certified/boot.cfg on them.
Is there a step I missed or something else I need to try? Could this be hardware problem that can't be fixed?
Thanks.
I have a 6360 switch stuck in a boot loop. The Console output when booting is as follows:
Code: Select all
General initialization - Version: 1.0.0
Serdes initialization - Version: 1.0.2
mvHwsSerdesTopologyGet: ac3s topology
PEX: pexIdx 0, detected no link
DDR3 Training Sequence - Ver TIP-1.55.0
DDR3 Training Sequence - Switching XBAR Window to FastPath Window
DDR3 Training Sequence - Ended Successfully
BootROM: Image checksum verification PASSED
__ __ _ _
| \/ | __ _ _ ____ _____| | |
| |\/| |/ _` | '__\ \ / / _ \ | |
| | | | (_| | | \ V / __/ | |
|_| |_|\__,_|_| \_/ \___|_|_|
_ _ ____ _
| | | | | __ ) ___ ___ | |_
| | | |___| _ \ / _ \ / _ \| __|
| |_| |___| |_) | (_) | (_) | |_
\___/ |____/ \___/ \___/ \__|
** LOADER **
U-Boot 2013.01 8.7.R02.149 |armv7_ac3| (Jan 27 2021 - 21:28:06) Marvell version: 2015_T1.0p18
Board: RD-XC3-BHX-24G-4XG
SoC: Alleycat3S Rev A1
running 3 CPUs
CPU: Marvell PJ4B (584) v7 (Rev 2) LE
CPU 0
CPU @ 667 [MHz]
L2 @ 200 [MHz]
TClock @ 200 [MHz]
DDR @ 667 [MHz]
DDR 16Bit Width, FastPath Memory Access, DLB Enabled
DDR ECC Disabled
DRAM: 1 GiB
U-Boot at: 3fe29000
Board ID d:3
CPLD REV: 11
OS6360_P24 out of reset
NAND: 1024 MiB
MMC: MRVL_MMC: 0
SF: Detected MX25L6405D with page size 64 KiB, total 8 MiB
PCI-e 0: Detected No Link.
FPU initialized to Run Fast Mode.
USB2.0 0: Host Mode
Map: Code: 0x3fe29000:0x3feebc40
BSS: 0x3ffefe0c
Stack: 0x3f918ee0
Heap: 0x3f919000:0x3fe29000
U-Boot Environment: 0x00100000:0x00110000 (SPI)
Net:
| port | Interface | PHY address |
|--------|-----------|--------------|
| egiga0 | SGMII | In-Band |
| egiga1 | SGMII | In-Band |
Reading Nvram:.. Done
Loading from NAND
incorrect device type in spi0=spi_flash
Creating 1 MTD partitions on "nand0":
0x000000000000-0x000040000000 : "mtd=0"
UBI: attaching mtd1 to ubi0
UBI: Force attach in read-only mode
UBI: physical eraseblock size: 262144 bytes (256 KiB)
UBI: logical eraseblock size: 253952 bytes
UBI: smallest flash I/O unit: 4096
UBI: VID header offset: 4096 (aligned 4096)
UBI: data offset: 8192
UBI: 18 bad PEB, 4078 good PEB
UBI: scan took 10700ms
UBI: attached mtd1 to ubi0
UBI: MTD device name: "mtd=0"
UBI: MTD device size: 1024 MiB
UBI: number of good PEBs: 4078
UBI: number of bad PEBs: 18
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: 23
UBI: total number of reserved PEBs: 4055
UBI: number of PEBs reserved for bad PEB handling: 40
UBI: max/mean erase counter: 4/1
UBIFS: read-only UBI device
LEB 0 mapped to PEB 1050
LEB 1 mapped to PEB 2372
LEB 2 mapped to PEB 2375
UBIFS error (pid 0): ubifs_scan: LEB 1445 scanning failed
UBIFS error (pid 0): ubifs_mount: Error reading superblock on volume 'ubi:flash' errno=-12!
Unable to mount UBI partition!
NVRAM:
Booting from certified/Nosa.img
Checking Nvram: No change!
Hit any key to stop autoboot: 0
UBIFS not mounted, use ubifs mount to mount volume first!
ubifsload_nosym - load file from an UBIFS filesystem, skipping symtbl entries
Usage:
ubifsload_nosym <addr> <filename> [bytes]
- load file 'filename' to address 'addr'
Wrong Image Format for bootm command
ERROR: can't get kernel image!
To use the switch rescue procedure first make sure of the following:
- The Narescue.img file is located in the root directory of the
USB flash device
- The 6360 directory contains all the system files required to
revive the switch.
i.e. 6360/certified/<*.img boot.cfg>
on the USB flash device
- USB flash device is inserted
Once the above requirements are met, issue the following command
at the prompt to start the rescue process:
=> run rescue
***** Using the rescue process WILL destroy all switch data *****
***** USE WITH EXTREME CAUTION *****
Marvell>>
Code: Select all
BootROM 1.41
Booting from SPI flash
Is there a step I missed or something else I need to try? Could this be hardware problem that can't be fixed?
Thanks.