Error boot switch

[thait01]

File "flash:c2960x-universalk9-mz.152-7.E12.bin" uncompressed and installed, ent ry point: 0x3000 executing... Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 170 West Tasman Drive San Jose, California 95134-1706 Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.2(7)E12, RELEASE SOFTWARE (fc5) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2025 by Cisco Systems, Inc. Compiled Wed 02-Apr-25 10:42 by mcpre Initializing flashfs... Using driver version 4 for media type 1 mifs[7]: 10 files, 1 directories mifs[7]: Total bytes : 1806336 mifs[7]: Bytes used : 690688 mifs[7]: Bytes available : 1115648 mifs[7]: mifs fsck took 0 seconds. mifs[7]: Initialization complete. mifs[8]: 2 files, 2 directories mifs[8]: Total bytes : 3870720 mifs[8]: Bytes used : 1213952 mifs[8]: Bytes available : 2656768 mifs[8]: mifs fsck took 1 seconds. mifs[8]: Initialization complete. mifs[9]: 5 files, 1 directories mifs[9]: Total bytes : 258048 mifs[9]: Bytes used : 8192 mifs[9]: Bytes available : 249856 mifs[9]: mifs fsck took 0 seconds. mifs[9]: Initialization complete. mifs[10]: 5 files, 1 directories mifs[10]: Total bytes : 258048 mifs[10]: Bytes used : 8192 mifs[10]: Bytes available : 249856 mifs[10]: mifs fsck took 0 seconds. mifs[10]: Initialization complete. mifs[11]: 654 files, 20 directories mifs[11]: Total bytes : 56125440 mifs[11]: Bytes used : 54149632 mifs[11]: Bytes available : 1975808 mifs[11]: mifs fsck took 1 seconds. mifs[11]: Initialization complete. ...done Initializing flashfs. Checking for Bootloader upgrade.. Boot Loader upgrade not needed(v) FIPS: Flash Key Check : Begin FIPS: Flash Key Check : End, Not Found, FIPS Mode Not Enabled extracting front_end/front_end_ucode_info (43 bytes) POST: MA BIST : Begin POST: MA BIST : End, Status Passed POST: TCAM BIST : Begin POST: TCAM BIST : End, Status Passed POST: ACT2 Authentication : Begin POST: ACT2 Authentication : End, Status Passed POST: Thermal, Fan Tests : Begin POST: Thermal, Fan Tests : End, Status Passed POST: PortASIC Port Loopback Tests : Begin

[Mark Elsen]

  - @thait01                         I can't see a specific error ; it seems that this is not the complete boot process :
                                           provide the rest too ,

  M.

[dat1]

My Cisco 2960-X-24TS-LL device gets stuck at the POST stage showing “PortASIC Port Loopback Tests: Begin” and does not continue. I have waited for 20 minutes, but there has been no further progress. Could this be a hardware issue?

[Mark Elsen]

  - @dat1              Execute a full power cycle on the switch ; if the issue remains try a factory reset. If nothing helps
                             then it is a hardware issue and the device needs to be replaced    (RMA)

  M.

[Blue_Bird]

There is no error shown in the log you provided. Your switch is actually performing a healthy Power-On Self-Test (POST).

Give it another 4-5 minutes, Look for a line that says POST, PortASIC Port Loopback Tests : End, Status Passed.

If it stops moving for more than 10 minutes at this specific line, you likely have a hardware failure on the ASIC

Best regards
******* If This Helps, Please Rate ******

[gtstech]

It stops completely at the line “ POST: PortASIC Port Loopback Tests : Begin” and does not continue. Is this a hardware issue?

[Blue_Bird]

Yes, it is hardware failure, As a last resort, It is recommended to try power cycle and Mode button reset: 

The Power Cycle: Unplug it for 30 seconds and plug it back in. If it sticks at the same spot, the chip is fried.

Mode Button Reset: Hold the Mode button while powering on to enter switch: prompt. If you can get there, you might try to initialize the flash, but this rarely fixes an ASIC loopback hang.

If both didn't help, Yes, that indicates hardwaer failure. Since the 2960X series is largely End-of-Life, this usually indicates a permanent component failure on the motherboard and device needs to be replaced.

Best regards
******* If This Helps, Please Rate ******

[gtstech]

I followed your instructions by unplugging the power and plugging it back in, but the device still stops at “PortASIC Port Loopback Tests: Begin.” I also pressed and held the MODE button, but the system did not enter “switch:” and remained stuck at “PortASIC Port Loopback Tests: Begin.” This is a hardware issue, right? Could you please help confirm?

[Blue_Bird]

Yes, Hardware issue/Failure..!

[gtstech]

Thank you for confirming. Have a nice day.

[Leo Laohoo]

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@thait01 wrote:
POST: PortASIC Port Loopback Tests : Begin

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Remove the lid.  

Remove the motherboard and look under the motherboard.  Is there a tiny "daughterboard" hanging from the motherboard?