1 | -- This script will clean up all kernels older than current version. |
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2 | -- |
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3 | -- This script must be plugged in the following slots: |
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4 | -- |
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5 | -- Scripts::AptGet::Upgrade |
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6 | -- Scripts::AptGet::DistUpgrade |
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7 | -- Scripts::Synaptic::Upgrade |
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8 | -- Scripts::Synaptic::DistUpgrade |
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9 | -- |
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10 | -- Author: Daisuke SUZUKI <daiuske@linux.or.jp> |
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11 | |
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12 | |
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13 | if confget("RPM::Remove-Old-Kernels/b", "true") == "false" then |
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14 | return |
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15 | end |
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16 | |
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17 | -- remove old kernel and kernel-devel |
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18 | knames = {'kernel', 'kernel%-pae', 'kernel%-smp', 'kernel%-devel', 'kernel%-pae%-devel', 'kernel%-smp%-devel'} |
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19 | |
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20 | -- get current running kernel version |
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21 | function get_running_kernel_ver() |
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22 | local inp = io.popen("uname -r") |
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23 | local currentver = nil |
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24 | for line in inp.lines(inp) do |
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25 | currentver = string.gsub(line,"pae$","") |
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26 | end |
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27 | if currentver then |
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28 | return currentver |
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29 | else |
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30 | return 0 |
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31 | end |
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32 | end |
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33 | |
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34 | -- get kernel version of vmlinuz. |
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35 | function get_current_kernel_ver() |
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36 | local inp = io.popen("readlink /boot/vmlinuz") |
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37 | local oldver = nil |
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38 | for line in inp.lines(inp) do |
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39 | oldver = string.gsub(string.gsub(line,"pae$",""),"^vmlinuz%-","") |
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40 | end |
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41 | if oldver then |
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42 | return oldver |
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43 | else |
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44 | return 0 |
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45 | end |
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46 | end |
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47 | |
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48 | -- get kernel version of vmlinuz.old |
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49 | function get_old_kernel_ver() |
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50 | local inp = io.popen("readlink /boot/vmlinuz.old") |
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51 | local oldver = nil |
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52 | for line in inp.lines(inp) do |
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53 | oldver = string.gsub(string.gsub(line,"pae$",""),"^vmlinuz%-","") |
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54 | end |
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55 | if oldver then |
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56 | return oldver |
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57 | else |
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58 | return 0 |
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59 | end |
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60 | end |
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61 | |
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62 | function get_latest(kname) |
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63 | pkgs = pkglist() |
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64 | latest = "0" |
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65 | for i, pkg in ipairs(pkgs) do |
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66 | if not pkgisvirtual(pkg) and string.find(pkgname(pkg), kname.."#") then |
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67 | ver = pkgvercur(pkg) |
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68 | if not ver then |
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69 | ver = pkgvercand(pkg) |
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70 | end |
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71 | if ver and verstrcmp(verstr(ver), latest) > 0 then |
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72 | latest = verstr(ver) |
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73 | latestpkg = pkg |
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74 | end |
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75 | end |
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76 | end |
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77 | return latestpkg |
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78 | end |
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79 | |
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80 | function get_latest_kernel_ver() |
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81 | latestver = nil |
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82 | latestver = verstr(pkgvercur(get_latest("kernel"))) |
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83 | if latestver then |
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84 | return latestver |
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85 | else |
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86 | return 0 |
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87 | end |
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88 | end |
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89 | |
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90 | -- remove all kernels older than current or vmlinuz.old |
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91 | function remove_old_kernels() |
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92 | rkver = get_running_kernel_ver() |
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93 | ckver = get_current_kernel_ver() |
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94 | lkver = get_latest_kernel_ver() |
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95 | okver = get_old_kernel_ver() |
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96 | pkgs = pkglist() |
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97 | for i, pkg in ipairs(pkgs) do |
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98 | ver = pkgvercur(pkg) |
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99 | if not pkgisvirtual(pkg) and ver then |
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100 | for j, kname in ipairs(knames) do |
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101 | if string.find(pkgname(pkg), kname..'#') then |
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102 | if ( verstrcmp(verstr(ver), rkver) < 0 and |
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103 | verstrcmp(verstr(ver), ckver) < 0 and |
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104 | verstrcmp(verstr(ver), lkver) < 0 and |
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105 | verstrcmp(verstr(ver), okver) < 0 ) then |
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106 | markremove(pkg) |
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107 | end |
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108 | end |
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109 | end |
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110 | end |
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111 | end |
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112 | end |
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113 | |
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114 | -- |
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115 | if script_slot == "Scripts::AptGet::DistUpgrade" or |
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116 | script_slot == "Scripts::AptGet::Upgrade" or |
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117 | script_slot == "Scripts::Synaptic::DistUpgrade" or |
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118 | script_slot == "Scripts::Synaptic::Upgrade" then |
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119 | remove_old_kernels() |
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120 | end |
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121 | |
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122 | -- vim:ts=4:sw=4:et |
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