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linux, how to change back a package to old version

Posted on 2009-04-27
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Last Modified: 2013-12-16
i have updated bzip2 to a new version
how can i revert back to old version
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Question by:ammadeyy2020
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by:anvanster
ID: 24239522
Uninstall, manually download older version and install it.
What linux distribution you are using?
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by:ammadeyy2020
ID: 24239769
im using CentOS 5

scenario here is, i have a linux firewall and our company is a PCI certified company
according to PCI policies, when update patches we have to test the patch and update
we should also document, which patch version is installed, and how we can change back to old version when necessary.

our firewall vendor releases updates, and after installing im thinking how to change back to old version,
like in windows, we can remove updates seperately, is there anyway linux does that?
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anvanster earned 2000 total points
ID: 24239845
As far as I know there is no automatic update removing in linux.
When update is finished testing it is being placed in distribution's software repository and downloaded if you run update on linux machine.

You can switch to an older version in few ways:
1. Perform system backup and restore to previous state (can be done even with tar)
2. Manually uninstall program and manually download and install oldest version. May not work on every program if it has some irreversible dependencies lets say in a database...
3. Use a backup server for creating backups of you linux machine (Bacula - one of best open source backup systems) and revert to previous system state if you need.
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