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After a security update on a ubuntu 12.04 server redmine 2.5 is broken (error 500). we recoginized that libapache2-mod-passenger was updated from 

libapache2-mod-passenger=2.2.11debian-2

to 

libapache2-mod-passenger=2.2.11debian-2+deb6u1ubuntu12.04.1

Downgrading this package again solved the problem. What can I do to not run into same problem with next security update?

Anatol
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1 Answers1

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Holding Packages

Holding a package basically means you're telling the package manager to keep the current version no matter what. This is useful if more recent version of a currently working program breaks after an update.

sudo apt-mark hold libapache2-mod-passenger

For additional information PinningHowto

stambata
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  • Instead of advising people to withhold security updates (which is an incredibly dangerous advise), a much better advise would be to find out what exactly broke and to fix this instead. – Holger Just Jun 04 '16 at 18:23