04-03-2021 08:10 AM
Hi, I restarted Catalyst 2960L-8PS switch today, but the switch never came back up. I consoled in and found that the switch was constantly restarting. The error messages are:
1.) Verifying MCU firmware... Fail
2.) MCU firmware Upgrade Fail - failed to get MCU data
3.) Invalid parameter block. Using Mac address of 0:0:0:0:0:0
4.) POST: ACT2 Authentication: End, Status Failed driver class subsystem initialization failed.
5.) Cloud not get Msemi to gracefully enter recovery state.
6.) nand bad command - shows bad blocks
Here are the screenshots
Is there a way to recover the switch?
Solved! Go to Solution.
04-04-2021 12:26 AM
- The device has a fatal hardware problem and needs to be RMA-ed
M.
04-03-2021 09:01 AM
- Which options are available under that nand command = nand ?
M.
04-03-2021 09:05 AM
Only nand bad shows as available command.
nand ?
nand bad
04-03-2021 09:47 AM
- Try fsck flash:
M.
04-03-2021 10:18 AM - edited 04-03-2021 11:10 AM
Received unknown command
"Unknown cmd: fsck"
Switch is in a limited ROMMON.
04-04-2021 12:26 AM
- The device has a fatal hardware problem and needs to be RMA-ed
M.
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