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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| #! /usr/bin/env ruby | ||
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| # This script removes not needed multimedia drivers (sound cards, TV cards,...). | ||
| # | ||
| # By default the script runs in safe mode and only lists the drivers to delete, | ||
| # use the "--delete" argument to really delete the drivers. | ||
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| require "find" | ||
| require "shellwords" | ||
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| # class holding the kernel driver data | ||
| class Driver | ||
| # the driver name, full file path, dependencies | ||
| attr_reader :name, :path, :deps | ||
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| def initialize(name, path, deps) | ||
| @name = name | ||
| @path = path | ||
| @deps = deps | ||
| end | ||
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| # load the kernel driver data from the given path recursively | ||
| def self.find(dir) | ||
| drivers = [] | ||
| puts "Scanning kernel modules in #{dir}..." | ||
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| return drivers unless File.directory?(dir) | ||
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| Find.find(dir) do |path| | ||
| if File.file?(path) && path.end_with?(".ko", ".ko.xz", ".ko.zst") | ||
| name = File.basename(path).sub(/\.ko(\.xz|\.zst|)\z/, "") | ||
| deps = `/usr/sbin/modinfo -F depends #{path.shellescape}`.chomp.split(",") | ||
| drivers << Driver.new(name, path, deps) | ||
| end | ||
| end | ||
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| return drivers | ||
| end | ||
| end | ||
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| # delete the kernel drivers in these subdirectories, but keep the drivers used by | ||
| # dependencies from other drivers | ||
| delete = [ | ||
| "kernel/sound", | ||
| "kernel/drivers/media", | ||
| "kernel/drivers/staging/media" | ||
| ] | ||
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| # in the Live ISO there should be just one kernel installed | ||
| dir = Dir["/lib/modules/*"].first | ||
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| # drivers to delete | ||
| delete_drivers = [] | ||
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| # scan the drivers in the delete subdirectories | ||
| delete.each do |d| | ||
| delete_drivers += Driver.find(File.join(dir, d)) | ||
| end | ||
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| all_drivers = Driver.find(dir) | ||
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| # remove the possibly deleted drivers | ||
| all_drivers.reject!{|a| delete_drivers.any?{|d| d.name == a.name}} | ||
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| puts "Skipping dependent drivers:" | ||
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| # iteratively find the dependant drivers (dependencies of dependencies...) | ||
| loop do | ||
| referenced = delete_drivers.select do |dd| | ||
| all_drivers.any?{|ad| ad.deps.include?(dd.name)} | ||
| end | ||
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| # no more new dependencies, end of the dependency chain reached | ||
| break if referenced.empty? | ||
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| puts referenced.map(&:path).sort.join("\n") | ||
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| # move the referenced drivers from the "delete" list to the "keep" list | ||
| all_drivers += referenced | ||
| delete_drivers.reject!{|a| referenced.any?{|d| d.name == a.name}} | ||
| end | ||
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| puts "Drivers to delete:" | ||
| delete = ARGV[0] == "--delete" | ||
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| delete_drivers.each do |d| | ||
| if (delete) | ||
| puts "Deleting #{d.path}" | ||
| File.delete(d.path) | ||
| else | ||
| puts d.path | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,10 @@ | ||
| ------------------------------------------------------------------- | ||
| Thu Nov 28 08:58:21 UTC 2024 - Ladislav Slezák <[email protected]> | ||
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| - Less aggressive kernel driver cleanup, keep the multimedia | ||
| drivers which are needed as dependencies of other drivers | ||
| (usually graphic card drivers) (gh#agama-project/agama#1665) | ||
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| ------------------------------------------------------------------- | ||
| Wed Nov 13 12:20:23 UTC 2024 - Lubos Kocman <[email protected]> | ||
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