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https://github.com/archlinux-jerry/pkgbuilds
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add package: kernel-modules-hook-hardlinks
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10
kernel-modules-hook-hardlinks/10-linux-modules-post.hook
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kernel-modules-hook-hardlinks/10-linux-modules-post.hook
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[Trigger]
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Operation = Remove
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Type = Path
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Target = usr/lib/modules/*/vmlinuz
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[Action]
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Description = Restoring Linux kernel modules...
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When = PostTransaction
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Exec = /usr/share/libalpm/scripts/linux-modules-restore
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NeedsTargets
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11
kernel-modules-hook-hardlinks/10-linux-modules-pre.hook
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kernel-modules-hook-hardlinks/10-linux-modules-pre.hook
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[Trigger]
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Operation = Install
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Operation = Remove
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Type = Path
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Target = usr/lib/modules/*/vmlinuz
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[Action]
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Description = Saving Linux kernel modules directory (hardlinks)...
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When = PreTransaction
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Exec = /usr/share/libalpm/scripts/linux-modules-save
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NeedsTargets
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28
kernel-modules-hook-hardlinks/PKGBUILD
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kernel-modules-hook-hardlinks/PKGBUILD
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# Maintainer: Max Gautier <mg+archlinux@max.gautier.name>
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# Contributor: Artoria Pendragon <saber-nyan@ya.ru>
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_pkgname=kernel-modules-hook
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pkgname=${_pkgname}-hardlinks
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pkgver=0.2.3
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pkgrel=1
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pkgdesc="Keeps your system fully functional after a kernel upgrade"
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arch=('any')
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provides=("$_pkgname")
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url="https://github.com/VannTen/$_pkgname"
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license=('GPL3')
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source=("linux-modules-cleanup.conf"
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"10-linux-modules-post.hook"
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"10-linux-modules-pre.hook"
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"linux-modules-restore"
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"linux-modules-save"
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)
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sha256sums=('950f851eba08dac4d0b93ff62b3fb16ddacd4f8ebb98a2435f80bf05f2ea5a29'
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'fc4d53dec520c80fe97dfda65b238c7d678e7ef26aaebffc5b43f924477ea4f4'
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'087e5ed70b2fc512d814fbded9e873955b1da5b6bf1e31975174d704ad143156'
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'28b995f6ea62899620d43d71e542bfc3432ad3ce90a6582f4ded1173fe8c0837'
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'5d9092689d9baa3d8e5ac65ae92d1c201e23c4ef42c99d131f9465c99d6505ef')
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package() {
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install -Dm644 'linux-modules-cleanup.conf' "${pkgdir}/usr/lib/tmpfiles.d/linux-modules-cleanup.conf"
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install -Dm644 10-linux-modules-{pre,post}.hook -t "${pkgdir}/usr/share/libalpm/hooks/"
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install -Dm755 linux-modules-{save,restore} -t "${pkgdir}/usr/share/libalpm/scripts/"
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}
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12
kernel-modules-hook-hardlinks/README.md
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kernel-modules-hook-hardlinks/README.md
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# kernel-modules-hook
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This is an alpm hook for Archlinux (or other pacman-based distribution) to keep the kernel modules of the running kernel available during a kernel upgrade.
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It relies on hardlinks and bind mount for saving and restoring, and systemd-tmpfiles for cleanup.
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## Installation
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### Archlinux
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[AUR](https://aur.archlinux.org/packages/kernel-modules-hook-hardlinks/)
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Use your AUR helper of choise, or use makepkg.
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2
kernel-modules-hook-hardlinks/linux-modules-cleanup.conf
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kernel-modules-hook-hardlinks/linux-modules-cleanup.conf
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R! /usr/lib/modules/running-kernel
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r /usr/lib/modules/*
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kernel-modules-hook-hardlinks/linux-modules-restore
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kernel-modules-hook-hardlinks/linux-modules-restore
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#!/bin/bash -e
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kver=$(uname -r)
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while read -r line; do
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# We only care about the running kernel
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if [[ "$line" == usr/lib/modules/$kver/vmlinuz && -d "${line/$kver/running-kernel}" ]];then
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mount --mkdir --bind --options ro /usr/lib/modules/{running-kernel,$kver}
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# Mounting read-only since the only modification here should be unmounting
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# when rebooting or reinstalling the running kernel
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fi
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done
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24
kernel-modules-hook-hardlinks/linux-modules-save
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kernel-modules-hook-hardlinks/linux-modules-save
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#!/bin/bash -e
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kver=$(uname -r)
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while read -r line; do
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# We only care about the running kernel
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if [[ "$line" == "usr/lib/modules/$kver/vmlinuz" ]];then
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if mountpoint --nofollow --quiet ${line%vmlinuz};then
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# Mount point is already present
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# This means we already ran that hook during 'remove case'
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#
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# Remove the mount so we can reinstall the kernel
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umount ${line%vmlinuz}
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elif [[ -f "$line" && ! -d "/usr/lib/modules/running-kernel/" ]];then
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# Kernel install is present and we do not have a copy
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#
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# This is the removal case, so we save the kernel
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mkdir /usr/lib/modules/running-kernel
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cp --archive --link /usr/lib/modules/{$kver}/{kernel,modules*} \
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/usr/lib/modules/running-kernel/
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fi
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# If we are re-removing the running kernel, (after removing + reinstalling),
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# we already have a backup and this hook is a no-op
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fi
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done
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