topic Re: S.O.S !!! in Operating System - HP-UX

S.O.S !!!

Igor Sovin — Wed, 21 Apr 2004 23:13:31 GMT

Hi all !
Need help immediatly!
One of my workers had changed permissions and ownership to /usr on Hp-Ux 11.23, after installation of SAP R/3 instance, then everything goes down :(
I cant telnet that host (error : cant open /dev/tty for reading)
I cant su to any user
Cant sudo to any user
Cant passwd and much more
I can only connect as root from remote Xmanager by xterm or work as root in single mode.

What can I do to get the system up?

Thanx.

Re: S.O.S !!!

Radhakrishnan Venkatara — Wed, 21 Apr 2004 23:20:23 GMT

Difficult situation .... Backups can only solve the issue...
Boot in single user mode and restore the backup..
I don't see any other possible way getting back ur data..

Radhakrishnan

Re: S.O.S !!!

Shaikh Imran — Wed, 21 Apr 2004 23:21:52 GMT

Hi,
If you have other HP-System Just compare the permissions and ownerships and change it respectively.
If Not then :
Use your console and boot the system into single user mode.
Hope you know how to get into single user mode.
ISL>hpux -is
If you know what changes had been made revert back the changes for the /usr.
If not then :
You will have to boot from the recovery cd and mount /usr filesystem and change the permissions and ownerships.

Regards,

If at all you are not able to boot in single user mode

Re: S.O.S !!!

Michael Tully — Wed, 21 Apr 2004 23:26:30 GMT

If you have connection to the server you should be able to change the permissions back you should be okay as both chown/chmod are in /sbin

# chown bin:bin /usr
# chmod 555 /usr

Then bring the system up.

Re: S.O.S !!!

Radhakrishnan Venkatara — Wed, 21 Apr 2004 23:55:02 GMT

But onething ... if you any specific software and programs resides or any filesystems mounted under /usr .... those permissions also to be cross verified...

Re: S.O.S !!!

Igor Sovin — Thu, 22 Apr 2004 00:48:49 GMT

I've made changes to /usr
but I still cant su to any user.
That's what I get when try to do it:

# su igorps
setgroups: Not owner
setgroups: Not owner
su: Unable to initialize group access list

How to fix it?

Re: S.O.S !!!

Bharat Katkar — Thu, 22 Apr 2004 01:02:47 GMT

Check permissions of /usr/bin/su. They should be as follows:

-r-sr-xr-x 1 root bin 24576 Aug 6 1998 su

Re: S.O.S !!!

Igor Sovin — Thu, 22 Apr 2004 01:32:02 GMT

thanx everybody, the system seems to be up soon!
and the last question
When i try to connect to remote system server via telnet or ssh after entering username and password i get my screen filled with disorderable strings and the following message appears:

ttytype: couldn't open /dev/tty for reading
stty: : Not a typewriter

Not a terminal
stty: : Not a typewriter

What can i do to make my tty to work properly?

Re: S.O.S !!!

Bharat Katkar — Thu, 22 Apr 2004 02:10:10 GMT

May be ur terminfo on server side not correct. check terminfo, termcap files.

Use man terminfo for further clarification

Re: S.O.S !!!

Trond Haugen — Thu, 22 Apr 2004 07:36:12 GMT

You can also thank the guys by assigning points.
Regards,
Trond

Re: S.O.S !!!

Mike Stroyan — Fri, 23 Apr 2004 11:31:26 GMT

It sounds like you may have many permissions problems remaining. You can run 'swverify "*"' to check the permissions (and checksums) of all of the files and directories that are known to swinstall. That could give you a much quicker way to deal with these problems instead of tripping over them one symptom at a time.