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On 19/04/2020 18:27, The Wanderer
wrote:
I don't think apt and dpkg are linked in this respect, they didn't used to be. i.e. holding through apt had no affect on dpkg.On 2020-04-19 at 13:08, Michael Lange wrote:Hi, On Sun, 19 Apr 2020 12:57:12 -0400 The Wanderer <wanderer@fastmail.fm> wrote:Does holding a package to not-installed even work? I thought I'd tried that in the past, and had the result be ignored.not sure about that, man apt-mark says " hold is used to mark a package as held back, which will prevent the package from being automatically installed, upgraded or removed."I think my memory has been jogged now. I think the problem is that this hold doesn't propagate through the dependency-resolution system, but only serves to prevent the change from being made, with the result that if the dependency resolver thinks the change is necessary then an install / upgrade/ whatever operation will fail with "you have held broken packages". IIRC and in my experience, this produces breakages in situations which would otherwise work often enough that I've just given up on trying it. And just as I finish that first paragraph, I remember the thing that didn't work with "not-installed" state: 'dpkg --set-selections'. 'apt-mark hold' definately prevents a package being selected for install, say as a depend, but you obviously could end up with broken packages if you forced the matter somehow. To my mind, it should maintain the status quo and mutually exclusive packages should be suitable for 'marking'. -- Michael Howard |