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Old 04-26-2010, 07:38 AM   #1
meadow400
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Smile How to change to single user mode in a dump script


Hello,

I have this dump script that performs either full or incremental backups depending on the day of the week. From what I have read, when using dump you should drop to single user mode to help prevent the backups from being inconsistent before you issue the dump command. What I want is the script to drop to single user mode, perform the backups using dump, and then go back to runlevel 3 after the backups complete.

I know when you enter init 1 to drop to single user mode, but doing so within a script reboots the computer and drops it to single user mode and the rest of the script doesn't complete.

What would be a good method for me to be able to accomplish what I want to do? Do I need to run other scripts that would call mine?

I am running Centos 5.4

Any help would be greatly appreciated.

Thank you
 
Old 04-26-2010, 02:14 PM   #2
Tinkster
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Hi, welcome to LQ!

You could have a script kick off at runlevel 1 that checks for a flag
which you generate on runlevel 3 when you're about to run a dump.
A "flag" in this context being a file e.g. under /var/state


Cheers,
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