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Re: Adding Pre-Depends from linux-image packages to linux-base

Cross-posted to 2 groups.

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Hi Ben,

On Sat, May 03, 2025 at 04:08:55PM +0200, Ben Hutchings wrote:
> I'm proposing to add a linux-run-hooks command to the linux-base package
> [1] that will then be used in all maintainer scripts of linux-image
> packages [2].  This requires upgrading the current Depends on linux-base
> to Pre-Depends.

I've looked into the relevant MRs with two questions on my mind.
1. Would the relevant packages be part of larger dependency chains where 
   those Pre-Depends could add undue complexity to an upgrade?
2. How do you handle postrm?

> Both packages are under kernel team maintenance, and linux-base has
> minimal dependencies (debconf | debconf-2.0).  So I don't anticipate
> this causing any problems with upgrades.

Regarding the first question, I concur. Dependencies of linux-base are 
sufficiently trivial to have a low chance of being late and reverse 
dependencies are practically kernel images only. We expect to be able to 
install and uninstall kernel images frequently, so there typically are 
not that much reverse dependencies. From that point of view, I have no 
concern.

Judging from the code, you are aware that presence of linux-base is not 
a given during postrm. In the absence of linux-base, hook execution is 
skipped with a message rather than having things fail. Arguably, 
uninstalling linux-base is an unusual thing to do. Can you give some 
argument why that skipping of postrm hooks (that didn't happen earlier) 
is a good compromise?

Helmut

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Thread

Adding Pre-Depends from linux-image packages to linux-base Ben Hutchings <ben@decadent.org.uk> - 2025-05-03 16:10 +0200
  Re: Adding Pre-Depends from linux-image packages to linux-base Bill Allombert <ballombe@debian.org> - 2025-05-04 18:00 +0200
    Re: Adding Pre-Depends from linux-image packages to linux-base Ben Hutchings <ben@decadent.org.uk> - 2025-05-04 18:50 +0200
    Re: Adding Pre-Depends from linux-image packages to linux-base Simon McVittie <smcv@debian.org> - 2025-05-04 19:20 +0200
  Re: Adding Pre-Depends from linux-image packages to linux-base Helmut Grohne <helmut@subdivi.de> - 2025-05-06 17:40 +0200
    Re: Adding Pre-Depends from linux-image packages to linux-base Ben Hutchings <ben@decadent.org.uk> - 2025-05-13 22:50 +0200

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