topic Re: make_sys_image causing problems, possible to kill process? in Operating System - HP-UX

make_sys_image causing problems, possible to kill process?

dictum9 — Tue, 05 Jan 2010 17:01:37 GMT

Running make_sys_image and it's causing all kinds of problems - first, / bin disappeared.

Now some printers are not working.

Can I kill the make_sys_image process?

Re: make_sys_image causing problems, possible to kill process?

Pete Randall — Tue, 05 Jan 2010 17:17:22 GMT

While I can't begin to imagine how make_sys_image could cause /bin to disappear, it should be safe, although not necessarily possible, to kill it.

If make_sys_image happens to be waiting on I/O, it won't be killed until the I/O complete (if ever).

Pete

Re: make_sys_image causing problems, possible to kill process?

dictum9 — Tue, 05 Jan 2010 17:54:11 GMT

that's what happened, /bin is a link and it just wasn't there, had to recreate it.

Re: make_sys_image causing problems, possible to kill process?

Dennis Handly — Tue, 05 Jan 2010 18:03:51 GMT

>/bin is a link and it just wasn't there, had to recreate it.

Your applications really shouldn't depend on tlinks being there.

If you think there are more tlinks missing, there is a tool to restore them.

Re: make_sys_image causing problems, possible to kill process?

Pete Randall — Tue, 05 Jan 2010 19:08:48 GMT

>there is a tool to restore them.

Indeed there is: tlinstall. Man tlinstall for details.

Pete

Re: make_sys_image causing problems, possible to kill process?

dictum9 — Tue, 05 Jan 2010 19:40:14 GMT

It restored everything. Still not sure why /bin was missing at the time. Broke a script that depended on /bin/sh

Re: make_sys_image causing problems, possible to kill process?

dictum9 — Tue, 05 Jan 2010 19:40:41 GMT

By "it" I mean the make_sys_image script, it put everything back.

Re: make_sys_image causing problems, possible to kill process?

Scot Bean — Tue, 05 Jan 2010 20:12:13 GMT

Since the 'make_sys_image' command is a shell script, you can see exactly what is does, and even customize it (at your own risk).

I see:
...
# Remove transition links
...
eval /opt/upgrade/bin/tlremove ${ERROROUT}

in there, so yes, before a 'level 2' image is created, transition links are removed.

Then, they are restored again after image is taken.

The command should warn you that
'the system should be as quiet as possible.', since a 'level 2' image can be interruptive. That means, try not to be running applications during this time.

Maybe 'level 2' images are overkill for your needs? This is used to create a 'golden image'. Regular 'make_net_recovery' images are less interruptive and are not 'level 2'. You may like that approach better.

Re: make_sys_image causing problems, possible to kill process?

dictum9 — Tue, 05 Jan 2010 21:36:58 GMT

Thanks.
It was a production machine with apps and Oracle and stuff. Had issues with some scripts not finding /bin/sh.

Had to renice it as the gzip was rather intense.

Finally finished running.