03-13-2023 01:34 PM
I got from my university a Cisco 3750-x 48p switch, however its heavily edited and managed, they do not know the password.
This switch has no removable/modular flash.
Please if theres a way to fix this issue it be amazing!
- Log to show.
The password-recovery mechanism is enabled.
Initializing Flash...
mifs[2]: 10 files, 1 directories
mifs[2]: Total bytes : 2097152
mifs[2]: Bytes used : 689664
mifs[2]: Bytes available : 1407488
mifs[2]: mifs fsck took 2 seconds.
mifs[3]: 0 files, 1 directories
mifs[3]: Total bytes : 4194304
mifs[3]: Bytes used : 1024
mifs[3]: Bytes available : 4193280
mifs[3]: mifs fsck took 3 seconds.
mifs[4]: 5 files, 1 directories
mifs[4]: Total bytes : 524288
mifs[4]: Bytes used : 9216
mifs[4]: Bytes available : 515072
mifs[4]: mifs fsck took 0 seconds.
mifs[5]: 5 files, 1 directories
mifs[5]: Total bytes : 524288
mifs[5]: Bytes used : 9216
mifs[5]: Bytes available : 515072
mifs[5]: mifs fsck took 1 seconds.
mifs[6]: 521 files, 11 directories
mifs[6]: Total bytes : 57671680
mifs[6]: Bytes used : 47293440
mifs[6]: Bytes available : 10378240
mifs[6]: mifs fsck took 44 seconds.
...done Initializing Flash.
done.
Loading "flash:/c3750e-universalk9npe-mz.150-2.SE4/c3750e-universalk9npe-mz.150- 2.SE4.bin"...
03-13-2023 10:08 PM
hi,
make sure you press/hold the MODE (black protruding) button and observe closely the LED lights.
or using the correct "break" sequence depending your PC/laptop model.
if MODE button still doesn't work, probably it's loose/faulty so you'll need to focus more on the "break" sequence to go into ROMMON.
see helpful link:
https://wannabelab.blogspot.com/2021/01/cisco-3750-x-switch-password-recovery.html
03-13-2023 10:10 PM
You are suppose to hold down the Mode button and apply power. Count to 20 seconds and release the Mode button. If done right, the prompt should be "rommon1>".
03-14-2023 05:21 AM - edited 03-14-2023 05:39 AM
Thanks for posting, however
johnlloyd_13 - I have done every thing you just told me, It goes amber, then it blinks the SYS LED, it says password recovery is enabled, but does not interrupt the boot. - Tried PuTTY Break sequence, didn't work. Used a other Terminal application and same story.
Edited : I think the button is in fact broken because it doesn't switch to modes.
Leo Laohoo - Same as a above
To remind you, this switch is heavily edited, by meaning, i cant put any commands, since its been forced to show a MOTD banner with a password lock.
Theres a reset button on the switch, but i think thats a reboot, instead of a reset.
- Logs
Using driver version 1 for media type 2
Base ethernet MAC Address: 6c:41:6a:e3:b3:80
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
mifs[2]: 10 files, 1 directories
mifs[2]: Total bytes : 2097152
mifs[2]: Bytes used : 689664
mifs[2]: Bytes available : 1407488
mifs[2]: mifs fsck took 2 seconds.
mifs[3]: 0 files, 1 directories
mifs[3]: Total bytes : 4194304
mifs[3]: Bytes used : 1024
mifs[3]: Bytes available : 4193280
mifs[3]: mifs fsck took 3 seconds.
mifs[4]: 5 files, 1 directories
mifs[4]: Total bytes : 524288
mifs[4]: Bytes used : 9216
mifs[4]: Bytes available : 515072
mifs[4]: mifs fsck took 0 seconds.
mifs[5]: 5 files, 1 directories
mifs[5]: Total bytes : 524288
mifs[5]: Bytes used : 9216
mifs[5]: Bytes available : 515072
mifs[5]: mifs fsck took 1 seconds.
mifs[6]: 521 files, 11 directories
mifs[6]: Total bytes : 57671680
mifs[6]: Bytes used : 47293440
mifs[6]: Bytes available : 10378240
mifs[6]: mifs fsck took 44 seconds. <--- this is me still holding the button, no response what so ever. Even though i think the button is broken.
...done Initializing Flash.
done.
Loading "flash:/c3750e-universalk9npe-mz.150-2.SE4/c3750e-universalk9npe-mz.150-2.SE4.bin"...
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