Don't be afraid, there is no problem, this is the official procedure but not only... you can use some steps of this procedure if you want re-stablish a password than can not be set by ciclic problems...
The steps to reactivate the root account:
1. Boot the system in to single user mode.
2. Mount /usr file systems.
# mount /usr
Note: The file system might need file system check (fsck) before mounting.
3. Systems that are not using Trusted System security skip to step #4.
For Trusted Systems (presence of a /tcb directory), follow these additional
steps:
a) Use the following command to reactivate the 'root' account:
# /usr/lbin/modprpw -k root
b) Use the 'modprpw' command to null the password, so that the passwd command
does not prompt for the old password.
10.x
# /usr/lbin/modprpw -w "" root
11.x
# /usr/sam/lbin/usermod.sam -F -p "" root
NOTE: To untrust the system, use: tsconvert -r
4. Change the root account password.
# passwd root
5. Boot the system in to multi user mode.
The steps to reactivate the root account:
1. Boot the system in to single user mode.
2. Mount /usr file systems.
# mount /usr
Note: The file system might need file system check (fsck) before mounting.
3. Systems that are not using Trusted System security skip to step #4.
For Trusted Systems (presence of a /tcb directory), follow these additional
steps:
a) Use the following command to reactivate the 'root' account:
# /usr/lbin/modprpw -k root
b) Use the 'modprpw' command to null the password, so that the passwd command
does not prompt for the old password.
10.x
# /usr/lbin/modprpw -w "" root
11.x
# /usr/sam/lbin/usermod.sam -F -p "" root
NOTE: To untrust the system, use: tsconvert -r
4. Change the root account password.
# passwd root
5. Boot the system in to multi user mode.
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