60 lines
2.2 KiB
Bash
Executable File
60 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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set -e
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if [ "${VERBOSE:-0}" -ge 2 ] || [ "${DEBUG:-0}" -eq 1 ]; then
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set -x
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fi
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localdir="$(dirname "$(readlink -f "$0")")"
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releasever="$1"
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kernelver="$(cat "$localdir/version")"
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kernelsrc="linux-$kernelver"
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key="$localdir/keys/RPM-GPG-KEY-fedora-$releasever-primary"
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[[ "x$releasever" == "x" ]] && { echo "Please provide Fedora release version as first argument, e.g. '29'."; exit 1; }
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# baseurl for latest kernel rpm
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url="https://dl.fedoraproject.org/pub/fedora/linux/updates/$releasever/Everything/x86_64/Packages/k"
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# get the latest kernel rpm
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content="$(curl "$url/")"
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latestrpm="$(echo "$content" | sed -e 's/<[^>]*>//g' | awk '{print $1}' | grep -E "kernel-core-[0-9]+.[0-9]+.[0-9]+-[0-9]+.fc29.x86_64.rpm")"
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latestver="$(echo "$latestrpm" | sed 's/kernel-core-//; s/\.rpm//')"
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if [ "x$latestrpm" != "x" ]; then
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tmpdir=$(mktemp -d)
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# download latest kernel rpm
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wget -q -O "$tmpdir/$latestrpm.untrusted" "$url/$latestrpm"
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# check signature
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mkdir -p "$tmpdir/rpmdb"
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rpmkeys --dbpath="$tmpdir/rpmdb" --import "$key"
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{ rpmkeys --dbpath="$tmpdir/rpmdb" --checksig "$tmpdir/$latestrpm.untrusted" | grep 'signatures OK' ; } || { echo "Failed to check signature"; exit 1; }
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mv "$tmpdir/$latestrpm.untrusted" "$tmpdir/$latestrpm"
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# extract kernel sources in qubes-linux-kernel
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tar xf "$localdir/$kernelsrc.tar.xz" -C "$tmpdir"
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# get latest config and put it in extracted sources
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rpm2cpio "$tmpdir/$latestrpm" | cpio -iv --to-stdout "./lib/modules/$latestver/config" > "$tmpdir/$kernelsrc/.config"
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# generate new config with: yes '' | make oldconfig
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cd "$tmpdir/$kernelsrc/"
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## drop config settings which depend on Fedora patches and adjust for the small version difference
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yes '' | make oldconfig
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## remove comments in header
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sed -i '1,4d' "$tmpdir/$kernelsrc/.config"
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# create final config
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cat - "$tmpdir/$kernelsrc/.config" > "$localdir/config-base-$latestver" << EOF
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# Base config based on Fedora's config ($latestrpm)
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# Only modification is \`yes '' | make oldconfig\` to drop config settings which
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# depend on Fedora patches and adjust for the small version difference.
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EOF
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rm -rf "$tmpdir"
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else
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echo "Unable to find the latest kernel rpm for Fedora $releasever"; exit 1
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fi
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