November 2017
Intermediate to advanced
162 pages
4h 8m
English
book
Embedded Linux Development using Yocto Projects - Second Edition
by Otavio Salvador, Daiane Angolini
Content preview from Embedded Linux Development using Yocto Projects - Second Edition
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Running code during package installation
Packages can use scripts as part of their installation and removal process. The included scripts are defined as follows:
- preinst: This executes before the package is unpacked. Services should be stopped during the execution of preinst to permit installation or upgrading.
- postinst: This typically completes any required configuration of the package after it has been unpacked. Many postinst scripts then execute any command necessary to start or restart a service once a new package has been installed or upgraded.
- prerm: This usually stops any daemon that is associated with a package. It is executed before the removal of files associated with the package.
- postrm: This commonly modifies links or other files ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.