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Root Password Recovery Solaris 10

root@Base-Machine:~# ldm list

NAME             STATE     FLAGS   CONS    VCPU  MEMORY   UTIL   UPTIME
primary            active     -n-cv-     UART     8          82432M     0.3%     95d
solaris-LD01    active     -n----      5000      62         62G           0.0%     6m
solaris-LD02    active     -n----      5001      62         62G           0.0%     1m


root@IBase-Machine::~# ldm set-variable auto-boot?=False solaris-LD02
root@Base-Machine::~# ldm list-variable  solaris-LD02
auto-boot?=False
keyboard-layout=US-English
pm_boot_policy=disabled=0;ttfc=2000;ttmr=0;

root@Base-Machine:~# telnet 0 5001
Trying 0.0.0.0...
Connected to 0.
Escape character is '^]'.

Connecting to console "Solaris-LD02" 
Solaris: console login:
telnet> send break
Debugging requested; hardware watchdog suspended.
c)ontinue, s)ync, r)eset? Choose r
Resetting...
NOTICE: Entering OpenBoot.
NOTICE: Fetching Guest MD from HV.
NOTICE: Starting additional cpus.
NOTICE: Initializing LDC services.
NOTICE: Probing PCI devices.
NOTICE: Finished PCI probing.


{0} ok
{0} ok devalias
disk01      /virtual-devices@100/channel-devices@200/disk@8
Disk02     /virtual-devices@100/channel-devices@200/disk@7
Disk03     /virtual-devices@100/channel-devices@200/disk@6
Disk04     /virtual-devices@100/channel-devices@200/disk@5
disk          /virtual-devices@100/channel-devices@200/disk@0
virtual-console          /virtual-devices/console@1
name                     aliases

Booting the system in Failsafe mode

{0} ok boot -F failsafe
Boot device: /virtual-devices@100/channel-devices@200/disk@0  File and args: -F failsafe

ROOT/s10s_update11 was found on rpool.
Do you wish to have it mounted read-write on /a? [y,n,?] y
mounting rpool on /a

Starting shell.
#
# df -h
Filesystem             size   used  avail capacity  Mounted on
/ramdisk-root:a        212M   187M   3.6M    99%    /
/devices                 0K     0K     0K     0%    /devices
ctfs                     0K     0K     0K     0%    /system/contract
proc                     0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
swap                    59G   320K    59G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
sharefs                  0K     0K     0K     0%    /etc/dfs/sharetab
swap                    59G   576K    59G     1%    /tmp
/tmp/dev                59G   576K    59G     1%    /dev
fd                       0K     0K     0K     0%    /dev/fd
rpool/ROOT/s10s_update11
                        98G    14G    78G    15%    /a
rpool/export            98G    32K    78G     1%    /a/export
rpool/export/home       98G    31K    78G     1%    /a/export/home
rpool                   98G   106K    78G     1%    /a/rpool
#
# TERM=vt100
# EDITOR=vi
# export TERM
#vi /etc/shadow

Switch to the directory

cd /a/etc
vi shadow
<Carefully remove or change the  unknown password of root >

Update the boot archive
bootadm update-archive -R /a


Reboot the system
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