get control of the console

[ssuresh_1]

Hi
this is a superdome. has vmhost. in it we have vmguest. Need to recover the root password of the vmguest. from vmhost, i reset the vmguest by RS or hpvmstop.
I see the system booting up. but when i try to interrup the boot process..

Ctrl E cf to get the console


When I do that


[Already attached to OS_Console.]

Please help me by telling me how to interrupt the boot process here....

p.s. i have normal user privileged login into this vmguest

[ssuresh_1]

when the system boots to interrupt..when i press 'enter' it shows

[Read only - use Ctrl-Ecf for console write access.]

when I do this
I get

Already attached to OS_Console

[rariasn]

Hi:

ENTER

CTRL-B

CO

rgs,

[Torsten.]

Be careful when using the console, you can easily switch the guests, but also to the real hardware console.


However, get the guests console (hpvmconsole) and start the guest in single user mode from there.

[ssuresh_1]

I go back to the superdome console when i press ctrl B

reln-c00-res001:/ # hpvmstatus | grep reln-c83-cie001

reln-c83-cie001 63 HPUX On (OS) 1 2 2 4 GB 1

reln-c00-res001:/ # hpvmstop -P reln-c83-cie001

hpvmstop: Stop the virtual machine 'reln-c83-cie001'? [n/y]: y

reln-c00-res001:/ # hpvmstart -p 63







(C) Copyright 2000 - 2007 Hewlett-Packard Development Company, L.P.

Opening minor device and creating guest machine container

Creation of VM, minor device 2

Allocating guest memory: 4096MB

allocating low RAM (0-80000000, 2048MB)

/opt/hpvm/lbin/hpvmapp (/var/opt/hpvm/uuids/2574ed42-95e4-11dd-870c-0016357382b6/vmm_config.current): Allocated 2147483648 bytes at 0x6000000100000000

allocating firmware RAM (ffaa0000-ffab5000, 84KB)

/opt/hpvm/lbin/hpvmapp (/var/opt/hpvm/uuids/2574ed42-95e4-11dd-870c-0016357382b6/vmm_config.current): Allocated 86016 bytes at 0x6000000180000000

allocating high RAM (100000000-180000000, 2048MB)

/opt/hpvm/lbin/hpvmapp (/var/opt/hpvm/uuids/2574ed42-95e4-11dd-870c-0016357382b6/vmm_config.current): Allocated 2147483648 bytes at 0x60000001c0000000

Loading boot image

Image initial IP=102000 GP=62E000

Initialize guest memory mapping tables

Starting event polling thread

Starting thread initialization

Daemonizing....

hpvmstart: Successful start initiation of guest 'reln-c83-cie001'

reln-c00-res001:/ #

reln-c00-res001:/ #

reln-c00-res001:/ #

reln-c00-res001:/ # hpvmconsole -P reln-c83-cie001





vMP MAIN MENU



CO: Console

CM: Command Menu

CL: Console Log

SL: Show Event Logs

VM: Virtual Machine Menu

HE: Main Help Menu

X: Exit Connection



[reln-c83-cie001] vMP> co







(Use Ctrl-X to return to vMP main menu.)







- - - - - - - - - - Prior Console Output - - - - - - - - - -

Scsi(Pun1,Lun0) HP Virtual LvDisk 0.04 ( 80 MBytes/sec)

EFI Boot Manager ver 1.10 [14.62] [Build: Mon Jan 22 11:13:36 2007]



Loading device drivers

EFI Boot Manager ver 1.10 [14.62] [Build: Mon Jan 22 11:13:36 2007]



Please select a boot option



HP-UX Primary Boot: 0/0/0/0.0.0

Lan Boot

EFI Shell [Built-in]

Boot option maintenance menu





Use ^ and v to change option(s). Use Enter to select an option

Default boot selection will be booted in 2 seconds

[Read only - use Ctrl-Ecf for console write access.] - - - -

MP MAIN MENU:



CO: Consoles

VFP: Virtual Front Panel

CM: Command Menu

CL: Console Logs

SL: Show Event Logs

FW: Firmware Update

HE: Help

X: Exit Connection



[reln-c00-sdm001] MP> co



Partitions available:



# Name

--- ----

0) reln-c00-res001

2) reln-c00-rac001

3) reln-c00-rac002

4) reln-c00-res002

Q) Quit



Please select partition number: 0



Connecting to OS Console: reln-c00-res001



(Use to return to main menu.)





- - - - - - - - - - Prior Console Output - - - - - - - - - -



(C) Copyright 1999-2006 Hewlett-Packard Development Company, L.P.

All rights reserved



HP-UX Boot Loader for IPF -- Revision 2.029



Press Any Key to interrupt Autoboot

\EFI\HPUX\AUTO ==> boot vmunix

Seconds left till autoboot - 9



- - - - - - - - - - - - Live Console - - - - - - - - - - - - 7

[Read-only - use cf to attach to OS_Console.] 3

[Bumped user - Admin.] 2



MP MAIN MENU:



CO: Consoles

VFP: Virtual Front Panel

CM: Command Menu

CL: Console Logs

SL: Show Event Logs

FW: Firmware Update

HE: Help

X: Exit Connection



[reln-c00-sdm001] MP> co



Partitions available:



# Name

--- ----

0) reln-c00-res001

2) reln-c00-rac001

3) reln-c00-rac002

4) reln-c00-res002

Q) Quit



Please select partition number: 0



Connecting to OS Console: reln-c00-res001



(Use to return to main menu.)





- - - - - - - - - - Prior Console Output - - - - - - - - - -



HP-UX Boot Loader for IPF -- Revision 2.029



Press Any Key to interrupt Autoboot

\EFI\HPUX\AUTO ==> boot vmunix

Seconds left till autoboot - 0

AUTOBOOTING...> System Memory = 4087 MB

loading section 0

..........................



- - - - - - - - - - - - Live Console - - - - - - - - - - - -

........................................... (complete)

loading section 1

............... (complete)

loading symbol table

loading System Directory (boot.sys) to MFS

....

loading MFSFILES directory (bootfs) to MFS

.......

[Read-only - use cf to attach to OS_Console.]

..............

Launching /stand/vmunix

SIZE: Text:35298K + Data:7490K + BSS:7244K = Total:50033K

Console is on Serial COM1

Booting kernel...





[Read-only - use cf to attach to OS_Console.]

Disabling 8259s

[Torsten.]

As said, be careful with the console!!!


>> [Read only - use Ctrl-Ecf for console write access.] - - - -


Press

CTRL and e

release CTRL

press c

press f

to get write access.

Use

CTRL x to leave the vMP!


Once you see the guest booting, stop before the kernel loads and boot into single user mode.

[ssuresh_1]

hi..i successfully managed to get the access to the console .... i jumped intot he HPUX prompt. I executed boot -is
I got the # prompt.
looks like the system is trusted.

I can see this in /tcb/files/auth/r but cannot edit using vi.

i mounted /usr.

# cat root
root:u_name=root:u_id#0:\
:u_pwd=UFVPdWqrVyXas:\
:u_bootauth:u_auditid#0:\
:u_auditflag#1:\
:u_exp#0:u_succhg#1233052069:u_unsucchg#1291889764:u_pswduser=root:\
:u_suclog#1291889515:u_suctty=console:u_unsuclog#1291889540:u_unsuctty=console:\
:u_numunsuclog#1:u_lock@:chkent:
# cd /


how to reset the passwd without being asked for old password?

[ssuresh_1]

hello
i did mountall

somehow vi worked. and i was able to edit that file root. password reset done successfully.

heartful thanks to all of you