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Re: want pinning with examples to prevent unwanted package(s) from being installed

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Dejan Jocic composed on 2017-08-31 08:51 (UTC+0200):

> Felix Miata wrote:

>> Over an hour I've been searching in vain, apparently using broken Google-fu, for
>> something using examples to explain how to prevent unwanted package(s) from
>> being installed via pinning when apt-mark's hold is being disregarded. Anyone
>> familiar with an URL that would do this?

>> In openSUSE, it's a simple process:

>> 	zypper al unwantedpackagename[version]

>> That's all there is to it, other than it also works with wildcards.

> Not sure that I understand, because man page gives enough examples.

To start with, the question "which man page" needed to be solved.

> Like:

>  P < 0
>       prevents the version from being installed

> So, for preventing some package to be installed:

> Package: somepackage
> Pin: origin ""
> Pin-Priority: -1

I never saw an example that wasn't part of a group that included multiple
release names, none with the null string for origin.

> That will prevent all packages with somepackage name to be installed, no
> matter of origin. In Pin section, you can use release instead, if you
> want to restrict just specific release, but that is all well explained
> in man page of apt_preferences with lots of examples.

Now that I see that apt_preferences is the relevant doc, I don't see it as
"well" explained. "The file" isn't given a name. There is no "file" that seems
applicable to locking anything in in /etc/apt/, though there is an empty
directory "/etc/apt/preferences.d/", which to me doesn't imply anything to do
with locking.

I gave it several stabs. I created /etc/apt/preferences.d/1grub.pref that
eventually reached the following state:

Package: grub
Pin: origin ""
Pin-Priority: -1

Package: grub2
Pin: origin ""
Pin-Priority: -1

Package: grub-common
Pin: origin ""
Pin-Priority: -1

Package: grub2-common
Pin: origin ""
Pin-Priority: -1

Package: os-prober
Pin: origin ""
Pin-Priority: -1

Package: grub-pc
Pin: origin ""
Pin-Priority: -1

Package: grub-pc-bin
Pin: origin ""
Pin-Priority: -1

Package: grub-gfxpayload-lists
Pin: origin ""
Pin-Priority: -1

I'm still getting told the following will be installed:
grub-common grub-gfxpayload-lists grub-pc grub-pc-bin grub2-common os-prober

This is a multiboot system, so no space-wasting, updates time-wasting bootloader
is needed or wanted on the installation making this insistence.

:-(
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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Thread

want pinning with examples to prevent unwanted package(s) from being  installed Felix Miata <mrmazda@earthlink.net> - 2017-08-31 08:10 +0200
  Re: want pinning with examples to prevent unwanted package(s) from  being installed Dejan Jocic <jodejka@gmail.com> - 2017-08-31 09:00 +0200
    Re: want pinning with examples to prevent unwanted package(s) from  being installed Felix Miata <mrmazda@earthlink.net> - 2017-08-31 09:30 +0200
      Re: want pinning with examples to prevent unwanted package(s) from  being installed Cindy-Sue Causey <butterflybytes@gmail.com> - 2017-08-31 16:30 +0200
        Re: want pinning with examples to prevent unwanted package(s) from  being installed Cindy-Sue Causey <butterflybytes@gmail.com> - 2017-09-01 00:40 +0200
    Re: want pinning with examples to prevent unwanted package(s) from  being installed Dejan Jocic <jodejka@gmail.com> - 2017-08-31 09:30 +0200
  Re: want pinning with examples to prevent unwanted package(s) from  being installed Jimmy Johnson <field.engineer@gmail.com> - 2017-09-01 07:10 +0200

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