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password recovery mds9148

jason.dewith
Level 1
Level 1

Hello,

 

I am trying to follow the instructions here http://www.cisco.com/c/en/us/support/docs/storage-networking/mds-9000-series-multilayer-switches/29441-8.html

 

I reboot the switch, and before it extracts the boot image, I perform a ctrl - c (ctrl - j does nothing) which interrupts the and takes me to the  loader> prompt.  for the life of me I cannot get to the switch(boot)#  prompt  and perform the rest of the steps to reset the admin password.

 

I am using a serial connection with putty on windows 7 64.

 

Thanks for any insight

3 Replies 3

Charles Hill
VIP Alumni
VIP Alumni

Try Fn+F6 or Ctrl+Fn and F6.

 

If that doesn't work, you can try Alt-b, which has always worked for me, however I haven't done a break sequence on a windows 7 machine.

 

Here is a link that points to a discussion on break sequences for a Windows 7 machine.

http://www.lammle.com/discussion/archive/index.php/t-5420.html

 

Below is a list of break key sequences, but I don't see Windows 7 listed.

Standard Break Key Combinations

SoftwarePlatformOperating SystemTry This
HyperterminalIBM CompatibleWindows XPCtrl-Break
HyperterminalIBM CompatibleWindows 2000Ctrl-Break
HyperterminalIBM CompatibleWindows 98Ctrl-Break
Hyperterminal (version 595160)IBM CompatibleWindows 95Ctrl-F6-Break
KermitSun WorkstationUNIXCtrl-\l
Ctrl-\b
MicroPhone ProIBM CompatibleWindowsCtrl-Break
MinicomIBM CompatibleLinuxCtrl-a f
ProComm PlusIBM CompatibleDOS or WindowsAlt-b
SecureCRTIBM CompatibleWindowsCtrl-Break
TelixIBM CompatibleDOSCtrl-End
TelnetN/AN/ACtrl-], then type send brk
Telnet to CiscoIBM CompatibleN/ACtrl-]
TeratermIBM CompatibleWindowsAlt-b
TerminalIBM CompatibleWindowsBreak
Ctrl-Break
TipSun WorkstationUNIXCtrl-], then Break or Ctrl-c
~#
VT 100 EmulationData GeneralN/AF16
Windows NTIBM CompatibleWindowsBreak-F5
Shift-F5
Shift-6 Shift-4 Shift-b (^$B)
Z-TERMINALMacAppleCommand-b
N/ABreak-Out BoxN/AConnect pin 2 (X-mit) to +V for half a second
Cisco to aux portN/AControl-Shft-6, then b
IBM CompatibleN/ACtrl-Break

Hi,

 

One option is ctrl-], (which didn't work for you) to get to the switch(boot)# prompt.

Another option is use ctrl-C to get to the loader> prompt, then run the kickstart to get to the switch(boot)# prompt.

 

Here is a video.

https://supportforums.cisco.com/video/11929111/resetting-lost-admin-password-mds-running-nx-os

 

Regards,

David

That's the secret sauce not listed in Cisco's documention!

 

To make it more specific:

1) CTRL-C immediately while it is booting, NOTE that CTRL-C is NOT the BREAK sequence. You should get a "loader" prompt:

  loader> 

 

2) run "dir" form loader> prompt and get the kickstart filename:

  loader> dir

    bootflash:

    16384 lost+found/
    4096 scripts/
    492 license_AMS15510216_9.lic
    6188 mts.log
    19983872 m9100-s3ek9-kickstart-mz.6.2.9a.bin
    73401580 m9100-s3ek9-mz.6.2.9a.bin

 

3) Boot the kickstart file, which should leave you in the switch(boot)#. If not, try sending a BREAK while the kickstart is booting.

  loader> boot m9100-s3ek9-kickstart-mz.6.2.9a.bin

    Booting bootflash:m9100-s3ek9-kickstart-mz.6.2.9a.bin ...

    ...

  switch(boot)#

 

4) Now you can run "conf t" and "admin-password xxxxxxx" to reset the admin password.

 

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