Wednesday, March 2, 2016

Unix_ Password Reset

1. Boot in single user mode at ok prompt
ok > boot cdrom -s

2. use format to identify hard drives

3. do a fsck check on disk
fsck -y /dev/rdsk/c0t0d0s0

4. mount disk and slice to mount a
mount /dev/dsk/c0t0d0s0 /a

5. cd /etc/ and vi shadow file

6 remove root::6445 all content between the 2 : : colans




umount: /a busy        


# umount /ar console l
a



# fsck -y /dev/rdsk/c0t1d0s0                          

** /dev/rdsk/c0t1d0s0        
ok boot cdr
** Last Mounted on /ting ...          
** Phase 1 - Check Blocks and Sizes 167MHz), No Keyboard            
** Phase 2 - Check Pathnames        
OpenBoot 3.1, 384
** Phase 3 - Check Connectivity87682.                        
** Phase 4 - Check Reference Countsnet address 8:0:20:7c:ef:22, Host I
** Phase 5 - Check Cy                  
# cd /a/etc/          
# vi shadow
"shadow" [Read only] 16 lines, 362 characters                            
WARNING: force






ow" [Read only] 16 lines, 362 characterseload of drv/atf failed                    
root::6445::::::RNING: forceload
daemon:NP:6445::::::                  
bin:NP:6445::::::ING: forceload of
sys:NP:6445::::::                
adm:NP:6445::::::ARNING: forceload
lp:NP:6445::::::d              
smtp:NP:6445::::::
WARNING: forcel
uucp:NP:6445::::::d                
nuucp:NP:6445::::::ARNING: forceload o
listen:*LK*:::::::                
nobody:NP:6445::::::NG: forceload of drv
noaccess:NP:6445:::                
oracle:GcLMiDjoPzzrQ:11155::::::0d0s1 as the dump device.      
~
~
~
~
~
~
~
"shadow" 16 lines, 349 characters    
VxVM starting special volum
# syncapvol
s# ync.    
# cd  
# umount /a          
# sync  
T
# syncle sys
# reboot/vx/rdsk
syncing file systems... done                          
rebooting...          
Resetting ...sk/rootvol: 1