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update GC pill to not mention gcroots/profiles

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This was removed in 2013 from nix v1.6. Don't point readers of the
pills towards a link that no longer is there.

fixes #105
This commit is contained in:
Romanos Skiadas 2021-07-15 19:13:48 +03:00
parent f1acd7ed9f
commit 8e69e5e771
1 changed files with 5 additions and 4 deletions
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9
pills/11-garbage-collector.xml
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@ -147,10 +147,11 @@
<para>
However we removed the link from
<filename>/nix/var/nix/profiles</filename>, not from
<filename>/nix/var/nix/gcroots</filename>. Turns out, that
<filename>/nix/var/nix/gcroots/profiles</filename> is a symlink to
<filename>/nix/var/nix/profiles</filename>. That is very handy. It means
any profile and its generations are GC roots.
<filename>/nix/var/nix/gcroots</filename>. Turns out, Nix
also treats <filename>/nix/var/nix/profiles</filename> as a GC root.
That is very handy. It means any profile and its generations are GC roots.
There are other paths that are taken into account as well, for example <filename>/run/booted-system</filename> on NixOS.
The command <command>nix-store --gc --print-roots</command> prints all the paths considered before performing a GC.
</para>
<para>