topic Re: Help me... in Operating System - HP-UX

Help me...

Thomas Spence_1 — Fri, 11 Apr 2003 15:33:50 GMT

I have to update on HP 9000/877 10.20 from

http://www2.itrc.hp.com/service/cki/docDisplay.do?admit=-1335382922+1050077314807+28353475&docId=HPSBUX0303-252

But one line that I wasn't sure what it means?

'Go to init state 2'

Thank you for your help me.

Re: Help me...

John Poff — Fri, 11 Apr 2003 15:41:11 GMT

Hi,

They probably mean to login as root and do:

init 2

which will take you to run level 2. I'd make sure all your applications are stopped before doing this, and also make sure you have a good Ignite backup before you do it.

JP

Re: Help me...

John Dvorchak — Fri, 11 Apr 2003 15:49:03 GMT

I just read your attached url and it means to go to run level 2. You do this by:

> init 2

Make sure all of your user's are logged off and your applications and databases are shutdown first.

Good luck

Re: Help me...

Kelli Ward — Fri, 11 Apr 2003 16:23:35 GMT

Hi,
For future use-
Another method to go to run level 2 is to boot up to it.
stop the boot sequence to get to main menu
type: bo or bo pri and y (yes) at the Interact with IPL?> line.
When the system boots to ISL>
type: hpux -i2 /stand/vmunix
(you can boot to almost any run-level this by simply exchanging the 2 for whatever level you want (it is the cleanest way to go to maintenance mode, as booting up to a higher run-level and then using init to drop down to a lower level won't always stop all of the higher level processes, by booting up to them, they never start in the first place.)
Good luck,
Kel

Re: Help me...

Thomas Spence_1 — Mon, 14 Apr 2003 09:32:46 GMT

Great, Also can I use telnet or must console before I type 'init 2'?

Tom

Re: Help me...

Pete Randall — Mon, 14 Apr 2003 09:50:25 GMT

Since run level 2 should have networking started up, you could probably manage via telnet, but I would prefer to be at the console.

Pete

Re: Help me...

Yogeeraj_1 — Mon, 14 Apr 2003 09:56:03 GMT

hi,

if you do it from a telnet session, this command will disconnect you!

You need to be on the server console or if your have LAN console...

regards
Yogeeraj

Re: Help me...

Jon Mattatall — Mon, 14 Apr 2003 10:06:04 GMT

Check with

# find /sbin/ | grep inetd

You should see...

/sbin/init.d/inetd
/sbin/rc1.d/K500inetd
/sbin/rc2.d/S500inetd

If so, then you can use telnet or the console.
The above "/sbin/rc1.d/K500inetd" indicates that if you were to "init 1", or go to run-level 1, the inetd, and hence, telnet, would not run. You would lose your session. The start script S500inetd is in run-level 2, so if you "init 2", telnet should be available.

Console is the better choice in case something unfortunate happens.

Re: Help me...

Tim Sanko — Mon, 14 Apr 2003 14:34:15 GMT

Here is a very short simplistic primer on run level.

Init 2 refers to the run level 2

level 0 is a shutdown state.

level s or 1 is single user maintenance mode

level two has the basic subsystems, filesystems and daemons active, called multi-user level. Has tcpip active.

level three exports filesystems for NFS etc.

level four starts the CDE and X windows system

level 5-6 are user defined.

This is a synopsis, not a treatise try "man init " on your box.

TJS