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Groups > linux.debian.kernel > #53790

Bug#822730: initramfs-tools: Should we migrate to a "interest-noawait" trigger for update-initramfs -u?

Cross-posted to 3 groups.

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Package: initramfs-tools
Version: 0.125
Severity: wishlist
Usertags: declarative-packaging 

Hi,

The update-initramfs tool currently has a bit of magic for deferring
changes during upgrades (by exploiting dpkg-trigger).  This is fine,
but I was wondering if we could perhaps add a file-based interest
trigger (or simply migrate to a declarative activate-noawait trigger).

I got basically two reasons for this bug:

 * Request for support in debhelper #491027 and lintian #678962
 * Promotion of "declarative packaging"[1].


At first glance[2], I would recommend adding a file-based trigger for the
following reasons:

 * Packages would just need to install files in
   usr/share/initramfs-tools/{hooks,scripts} and initramfs-tools
   would take care of the rest.

 * There would be no need for lintian tags or changes to debhelper to
   improve support.  It would "just work"(tm).

This file-based trigger would be used in /addition/ to the existing
trigger.  AFAICT, some packages only conditionally need to trigger
update-initramfs (and these would still need to be able to call
"dpkg-trigger --no-await update-initramfs").

 * What do you think about this suggestion?

 * Alternatively, would the use of declarative triggers[3] be ok for
   the debhelper support?


Thanks,
~Niels

[1] https://wiki.debian.org/Teams/Dpkg/Spec/DeclarativePackaging

[2] I admit having very limited overview over the use-cases around
update-initramfs.

[3] Like we did with ldconfig.  Basically add

  activate-noawait update-initramfs

to the packages' triggers file.

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Thread

Bug#822730: initramfs-tools: Should we migrate to a "interest-noawait" trigger for update-initramfs -u? Niels Thykier <niels@thykier.net> - 2016-04-26 22:40 +0200
  Bug#822730: initramfs-tools: Should we migrate to a "interest-noawait" trigger for update-initramfs -u? Niels Thykier <niels@thykier.net> - 2017-07-09 15:00 +0200
    Bug#822730: initramfs-tools: Should we migrate to a "interest-noawait" trigger for update-initramfs -u? Niels Thykier <niels@thykier.net> - 2017-12-31 17:40 +0100
  Processed: Re: initramfs-tools: Should we migrate to a  "interest-noawait" trigger for update-initramfs -u? "Debian Bug Tracking System" <owner@bugs.debian.org> - 2017-12-31 17:50 +0100

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