Hello, I am reaching out here to see if anybody has advice on how to wipe my Mellanox switch back to default credentials/configuration.
For context: I bought this switch second-hand from a seller who takes goods that would normally go to salvage, so they do not have any passwords or information on this switch either.
I have tried the classic push the RST button for 15+ seconds to no avail. I tried it when it was booting up, when it was booted up, when it was completely off with no power, with cords and without, and every combination thereof and it booted straight into the same config each time with a hostname and nondefault credentials.
I went to go the CTRL+B while booting method so I could use the console to wipe it and was hit with this fun message:
Mellanox MLNX-OS Boot Menu:
1: SX_PPC_M460EX SX_3.3.4402 2014-02-28 14:29:47 ppc
* 2: SX_PPC_M460EX SX_3.4.0010 2014-11-20 18:47:19 ppc
u: USB menu (if USB device connected) (password required)
c: Command prompt (password required)
Choice:
I tried all default passwords I could find again here with no luck. Both firmware images installed went to the same “mnemosyne-ibsw login:”
Attached here is the entire boot process without any funky CTRL+B stuff. Desperate for any way to go about this.
U-Boot 2009.01 SX_PPC_M460EX SX_3.2.0330-82 ppc (Dec 20 2012 - 17:53:54)
CPU: AMCC PowerPC 460EX Rev. B at 1000 MHz (PLB=166, OPB=83, EBC=83 MHz)
Security/Kasumi support
Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
Internal PCI arbiter disabled
32 kB I-Cache 32 kB D-Cache
Board: Mellanox PPC460EX Board
FDEF: No
I2C: ready
DRAM: 2 GB (ECC enabled, 333 MHz, CL3)
FLASH: 16 MB
NAND: 1024 MiB
PCI: Bus Dev VenId DevId Class Int
PCIE0: link is not up.
PCIE1: successfully set as root-complex
01 00 15b3 c738 0c06 00
Net: ppc_4xx_eth0, ppc_4xx_eth1
Reading image settings from EEPROM
Mellanox MLNX-OS
Default image: 'SX_PPC_M460EX SX_3.4.0010 2014-11-20 18:47:19 ppc'
Press Enter to boot this image, or 'Ctrl B' for boot menu
Booting default image in: 0
Booting location 2: 'SX_PPC_M460EX SX_3.4.0010 2014-11-20 18:47:19 ppc'
INIT: version 2.86 booting
Starting: SX_PPC_M460EX SX_3.4.0010 2014-11-20 18:47:19 ppc
Starting udev: [ OK ]
Setting clock (utc): Tue Feb 25 23:58:28 UTC 2025 [ OK ]
Setting hostname localhost: [ OK ]
Checking filesystems
Checking all file systems.
[ OK ]
Remounting root filesystem in read-write mode: [ OK ]
Mounting local filesystems: [ OK ]
Running vpart script: [ OK ]
Applying file system skeletons: base_var base_config .
Enabling /etc/fstab swaps: [ OK ]
INIT: Entering runlevel: 3
Starting system services
Starting sx_low_level_if: Starting sx_low_level_if:
Loading i2c_mux_pca954x driver - Success
Loading glue logic low level - Success
Loading watchdog - Success
Loading cpld handler - Success
Loading mellaggra module - Success
Loading sx i2c module - Success
[ OK ]
Starting openibd: IPoIB configuration for embedded system
Loading SX driver:[ OK ]
Loading HCA driver and Access Layer:[ OK ]
Setting up InfiniBand network interfaces:
Setting up service network . . .[ done ]
Reloading udev:
[ OK ]
Starting system logger: [ OK ]
Starting kernel logger: [ OK ]
Running renaming interfaces
Renaming: MAC: F4:52:14:99:46:30 ifindex: 2 name: mgmt0
Renaming: MAC: F4:52:14:99:46:31 ifindex: 3 name: mgmt1
Checking for unexpected shutdown
Detected unexpected shutdown!
Probing for HRNG module
Starting rngd: [ OK ]
Running system image: SX_PPC_M460EX SX_3.4.0010 2014-11-20 18:47:19 ppc
Applying initial configuration: Feb 25 18:59:29 INFO LOG: Initializing SX log with STDOUT as output file.
Starting internal_startup: [ OK ]
Starting tc_ingress_policy: mDNS policing rate=4000kbit burst=400k
Ingress policing enable on interface mgmt0 rate=9000kbit burst=900k
Ingress policing enable on interface mgmt1 rate=9000kbit burst=900k
[ OK ]
Starting clean_issnvram: Deleting issnvram.txt
[ OK ]
Starting intr_hndl: Starting :
Loading int handler module - Success
[ OK ]
Starting iss-nvram-mac: [ OK ]
Starting copy_rh_files_to_vtmp: [ OK ]
Starting sx_pra: Starting proxy arp management:
Loading proxy arp management module - Success
[ OK ]
Starting udevd: Reloading udev...
[ OK ]
Starting pm: [ OK ]
Starting oops_dump_reg: Starting kernel reg dump:
Loading kernel reg dump module - Success
[ OK ]
Starting lnpuppetvar.sh: [ OK ]
Starting mst: Starting MST (Mellanox Software Tools) driver set
Loading MST PCI module - Success
Loading MST PCI configuration module - Success
Create devices
[ OK ]
Mellanox MLNX-OS Switch Management
mnemosyne-ibsw login: