It is accustomed point out that one bundle can be much more of good use that have one or more anybody else. With this specific community tells the fresh new packaging program in addition to member you to definitely the fresh noted bundles is about this 1 and certainly will perhaps augment its convenience, however, you to setting-up this with out them are well reasonable.
This field is like Implies however, functions about reverse guidelines. It’s used to declare that a package can enhance the newest effectiveness of some other package.
In such a case, the in past times-designed and you will currently “Unpacked” otherwise “Half-Configured” items must see any type term on the Pre-Would depend community
It occupation feels like Depends , except that in addition it forces dpkg to complete installation of the packages named prior to actually starting installing the container and therefore announces new pre-dependence, the following:
Whenever a deal saying an excellent pre-reliance is best Dating by age dating site about to be unpacked the new pre-dependency will be met when your depended-toward plan is possibly fully set up, if not in the event the depended-towards the plan(s) are merely on the “Unpacked” or perhaps the “Half-Configured” condition, provided that these are typically set up precisely at some point in during the last (rather than got rid of otherwise partly eliminated just like the).
Such a great deal would be to record using Depends the box(s) that are required by more important elements
In the event that plan saying an effective pre-dependence is going to getting designed, brand new pre-dependence might be treated as a regular Is based . It might be thought found on condition that the fresh relied-into plan could have been accurately configured. But not, rather than that have Is based , Pre-Is based does not permit circular dependencies as busted. In the event the a curved reliance try came across if you’re attempting to honor Pre-Depends , installing the device could be aborted.
Pre-Is based are needed if for example the preinst script depends on the fresh named package. It’s always best to prevent this example preferably.
Pre-Would depend shall be utilized sparingly, ideally simply by bundles whoever untimely update or installment create hinder the ability of the system to continue with any up-date you to definitely might possibly be beginning.
You shouldn’t establish an effective Pre-Is based entryway getting a great deal before this might have been talked about on the this new debian-devel subscriber list and you will a consensus on starting which was attained. Pick Dependencies .
When choosing and this quantity of reliance to use you must know how important new depended-on the bundle would be to the new functionality of one’s you to definitely saying the reliance. Certain packages are comprised out of elements of varying degrees of strengths. Additional components’ conditions can be stated since the Guidance otherwise Information, since compatible toward components’ relative pros.
Whenever one binary package announces that it breaks several other, dpkg will refuse to allow package which declares Breaks so you’re able to end up being unpacked unless the busted bundle try deconfigured basic, and it surely will will not let the damaged bundle to be reconfigured.
A package are not thought to be ultimately causing breakage merely because the the configuration data are still hung; it must be at the very least “Half-Installed”.
A special different is perfect for bundles and this e otherwise a great digital plan which they promote (come across below): this won’t number as the a genuine breakage.
Normally a splits admission are certain to get a keen “prior to when” adaptation term; such as for example a splits is lead regarding the type of an enthusiastic (implicit or specific) dependence and that violates a presumption or shows a bug for the before products of the broken package, or which takes over a document regarding earlier incarnations of your own plan titled during the Holidays . This usage of Vacation trips will state highest-height package government gadgets that broken package should be updated up until the brand new one.
When your cracking package together with overwrites specific documents from the elderly plan, it should play with Substitute to ensure this goes efficiently. Get a hold of Overwriting files and you will replacing bundles – Changes having a full dialogue of overtaking data files from other bundles, in addition to making use of Trips in those instances.
