标签：ppa -- 内核 && Ubuntu action fi eq 20.04
Ubuntu 20.04 升级最新内核、安装指定内核版本
https://cdmana.com/2021/12/202112290531351544.html
查看目前版本
uname -rs
#查看当前内核版本
uname -r
#查看软件库中可下载的内核
sudo apt list | grep linux-generic*
#下载最新的内核（不用和我一样，但我的这个版本可以支持，具体版本以你的软件库中为准）
sudo apt-get install linux-generic-hwe-20.04-edge/focal-updates
更新之后，打开电脑设置后可以发现显示出了第二个屏幕，并且可以手动选择功能。
下载ubuntu-mainline-kernel脚本
wget https://raw.githubusercontent.com/pimlie/ubuntu-mainline-kernel.sh/master/ubuntu-mainline-kernel.sh
下载不了看后面脚本
将脚本放在可执行路径中
sudo install ubuntu-mainline-kernel.sh /usr/local/bin/
检查最新的可用内核版本
ubuntu-mainline-kernel.sh -c
获得最新版本并确认这就是您想要安装在系统上的版本之后，运行
sudo ubuntu-mainline-kernel.sh -i
重新启动系统并检查内核版本
uname -rs
安装结束卸载最新的Linux Kernel
sudo ubuntu-mainline-kernel.sh -u
首先重启系统，然后运行以下命令:
uname -rs
参考安装脚本
ubuntu-mainline-kernel.sh
#!/usr/bin/env bash
# shellcheck disable=SC1117
# Ubuntu Kernel PPA info
ppa_host="kernel.ubuntu.com"
ppa_index="/~kernel-ppa/mainline/"
ppa_key="17C622B0"
# If quiet=1 then no log messages are printed (except errors)
quiet=0
# If check_signature=0 then the signature of the CHECKSUMS file will not be checked
check_signature=1
# If check_checksum=0 then the checksums of the .deb files will not be checked
check_checksum=1
# If doublecheckversion=1 then also check the version specific ppa page to make
# sure the kernel build was successful
doublecheckversion=1
# Connect over http or https to ppa (only https works)
use_https=1
# Path to sudo command, empty by default
sudo=""
#sudo=$(command -v sudo) # Uncomment this line if you dont want to sudo yourself
# Path to wget command
wget=$(command -v wget)
#####
## Below are internal variables of which most can be toggled by command options
## DON'T CHANGE THESE MANUALLY
#####
# (internal) If cleanup_files=1 then before exiting all downloaded/temporaryfiles
# are removed
cleanup_files=1
# (internal) If do_install=0 downloaded deb files will not be installed
do_install=1
# (internal) If use_lowlatency=1 then the lowlatency kernel will be installed
use_lowlatency=0
# (internal) If use_lpae=1 then the lpae kernel will be installed
use_lpae=0
# (internal) If use_snapdragon=1 then the snapdragon kernel will be installed
use_snapdragon=0
# (internal) If use_rc=1 then release candidate kernel versions are also checked
use_rc=0
# (internal) If assume_yes=1 assume yes on all prompts
assume_yes=0
# (internal) How many files we expect to retrieve from the ppa
# checksum, signature, header-all, header-arch, image(-unsigned), modules
expected_files_count=6
# (internal) Which action/command the script should run
run_action="help"
# (internal) The workdir where eg the .deb files are downloaded
workdir="/tmp/$(basename "$0")/"
# (internal) The stdio where all detail output should be sent
debug_target="/dev/null"
# (internal) Holds all version numbers of locally installed ppa kernels
LOCAL_VERSIONS=()
# (internal) Holds all version numbers of available ppa kernels
REMOTE_VERSIONS=()
# (internal) The architecture of the local system
arch=$(dpkg --print-architecture)
# (internal) The text to search for to check if the build was successfully
# NOTE: New succeed text since v5.6.18
build_succeeded_text="(Build for ${arch} succeeded|Test ${arch}/build succeeded)"
# (internal) The pid of the child process which checks download progress
monitor_pid=0
# (internal) The size of the file which is being downloaded
download_size=0
action_data=()
#####
## Check if we are running on an Ubuntu-like OS
#####
# shellcheck disable=SC1091,SC2015
[ -f "/etc/os-release" ] && {
source /etc/os-release
[[ "$ID" == "ubuntu" ]] || [[ "$ID_LIKE" =~ "ubuntu" ]]
} || {
OS=$(lsb_release -si 2>&-)
[[ "$OS" == "Ubuntu" ]] || [[ "$OS" == "LinuxMint" ]] || [[ "$OS" == "neon" ]] || {
echo "Abort, this script is only intended for Ubuntu-like distros"
exit 2
}
}
#####
## helper functions
#####
single_action () {
[ "$run_action" != "help" ] && {
err "Abort, only one argument can be supplied. See -h"
exit 2
}
}
log () {
[ $quiet -eq 0 ] && echo "$@"
}
logn () {
[ $quiet -eq 0 ] && echo -n "$@"
}
warn () {
[ $quiet -eq 0 ] && echo "$@" >&2
}
err () {
echo "$@" >&2
}
#####
## Simple command options parser
#####
while (( "$#" )); do
argarg_required=0
case $1 in
-c|--check)
single_action
run_action="check"
;;
-l|--local-list)
single_action
run_action="local-list"
argarg_required=1
;;
-r|--remote-list)
single_action
run_action="remote-list"
argarg_required=1
;;
-i|--install)
single_action
run_action="install"
argarg_required=1
;;
-u|--uninstall)
single_action
run_action="uninstall"
argarg_required=1
;;
-p|--path)
if [ -z "$2" ] || [ "${2##-}" != "$2" ]; then
err "Option $1 requires an argument."
exit 2
else
workdir="$(realpath "$2")/"
shift
if [ ! -d "$workdir" ]; then
mkdir -p "$workdir";
fi
if [ ! -d "$workdir" ] || [ ! -w "$workdir" ]; then
err "$workdir is not writable"
exit 1
fi
cleanup_files=0
fi
;;
-ll|--lowlatency|--low-latency)
[[ "$arch" != "amd64" ]] && [[ "$arch" != "i386" ]] && {
err "Low-latency kernels are only available for amd64 or i386 architectures"
exit 3
}
use_lowlatency=1
;;
-lpae|--lpae)
[[ "$arch" != "armhf" ]] && {
err "Large Physical Address Extension (LPAE) kernels are only available for the armhf architecture"
exit 3
}
use_lpae=1
;;
--snapdragon)
[[ "$arch" != "arm64" ]] && {
err "Snapdragon kernels are only available for the arm64 architecture"
exit 3
}
use_snapdragon=1
;;
--rc)
use_rc=1
;;
-s|--signed)
log "The option '--signed' is not yet implemented"
;;
--yes)
assume_yes=1
;;
-q|--quiet)
[ "$debug_target" == "/dev/null" ] && { quiet=1; }
;;
-do|--download-only)
do_install=0
cleanup_files=0
;;
-ns|--no-signature)
check_signature=0
;;
-nc|--no-checksum)
check_checksum=0
;;
-d|--debug)
debug_target="/dev/stderr"
quiet=0
;;
-h|--help)
run_action="help"
;;
*)
run_action="help"
err "Unknown argument $1"
;;
esac
if [ $argarg_required -eq 1 ]; then
[ -n "$2" ] && [ "${2##-}" == "$2" ] && {
action_data+=("$2")
shift
}
elif [ $argarg_required -eq 2 ]; then
# shellcheck disable=SC2015
[ -n "$2" ] && [ "${2##-}" == "$2" ] && {
action_data+=("$2")
shift
} || {
err "Option $1 requires an argument"
exit 2
}
fi
shift
done
#####
## internal functions
#####
containsElement () {
local e
for e in "${@:2}"; do [[ "$e" == "$1" ]] || [[ "$e" =~ $1- ]] && return 0; done
return 1
}
download () {
host=$1
uri=$2
if [ $use_https -eq 1 ]; then
$wget -q --save-headers --output-document - "https://$host$uri"
else
exec 3<>/dev/tcp/"$host"/80
echo -e "GET $uri HTTP/1.0\r\nHost: $host\r\nConnection: close\r\n\r\n" >&3
cat <&3
fi
}
monitor_progress () {
local msg=$1
local file=$2
download_size=-1
printf "%s: " "$msg"
(while :; do for c in / - \\ \|; do
[[ -f "$file" ]] && {
# shellcheck disable=SC2015
[[ $download_size -le 0 ]] && {
download_size=$(($(head -n20 "$file" | grep -aoi -E "Content-Length: [0-9]+" | cut -d" " -f2) + 0))
printf ' %d%% %s' 0 "$c"
printf '\b%.0s' {1..5}
} || {
filesize=$(( $(du -b "$file" | cut -f1) + 0))
progress="$((200*filesize/download_size % 2 + 100*filesize/download_size))"
printf ' %s%% %s' "$progress" "$c"
length=$((4 + ${#progress}))
printf '\b%.0s' $(seq 1 $length)
}
}
sleep 1
done; done) &
monitor_pid=$!
}
end_monitor_progress () {
{ kill $monitor_pid && wait $monitor_pid; printf '100%% \n'; } 2>/dev/null
}
remove_http_headers () {
file="$1"
nr=0
while(true); do
nr=$((nr + 1))
line=$(head -n$nr "$file" | tail -n 1)
if [ -z "$(echo "$line" | tr -cd '\r\n')" ]; then
tail -n +$nr "$file" > "${file}.tmp"
mv "${file}.tmp" "${file}"
break
fi
[ $nr -gt 100 ] && {
err "Abort, could not remove http headers from file"
exit 3
}
done
}
load_local_versions() {
local version
if [ ${#LOCAL_VERSIONS[@]} -eq 0 ]; then
IFS=$'\n'
for pckg in $(dpkg -l linux-image-* | cut -d " " -f 3 | sort -V); do
# only match kernels from ppa
if [[ "$pckg" =~ linux-image-[0-9]+\.[0-9]+\.[0-9]+-[0-9]{6} ]]; then
version="v"$(echo "$pckg" | cut -d"-" -f 3,4)
LOCAL_VERSIONS+=("$version")
fi
done
unset IFS
fi
}
latest_local_version() {
load_local_versions 1
if [ ${#LOCAL_VERSIONS[@]} -gt 0 ]; then
local sorted
mapfile -t sorted < <(echo "${LOCAL_VERSIONS[*]}" | tr ' ' '\n' | sort -t"." -k1V,3)
lv="${sorted[${#sorted[@]}-1]}"
echo "${lv/-[0-9][0-9][0-9][0-9][0-9][0-9]rc/-rc}"
else
echo "none"
fi
}
remote_html_cache=""
parse_remote_versions() {
local line
while read -r line; do
if [[ $line =~ DIR.*href=\"(v[[:digit:]]+\.[[:digit:]]+(\.[[:digit:]]+)?)(-(rc[[:digit:]]+))?/\" ]]; then
line="${BASH_REMATCH[1]}"
if [[ -z "${BASH_REMATCH[2]}" ]]; then
line="$line.0"
fi
# temporarily substitute rc suffix join character for correct version sort
if [[ -n "${BASH_REMATCH[3]}" ]]; then
line="$line~${BASH_REMATCH[4]}"
fi
echo "$line"
fi
done <<<"$remote_html_cache"
}
load_remote_versions () {
local line
[[ -n "$2" ]] && {
REMOTE_VERSIONS=()
}
if [ ${#REMOTE_VERSIONS[@]} -eq 0 ]; then
if [ -z "$remote_html_cache" ]; then
[ -z "$1" ] && logn "Downloading index from $ppa_host"
remote_html_cache=$(download $ppa_host $ppa_index)
[ -z "$1" ] && log
fi
IFS=$'\n'
while read -r line; do
# reinstate original rc suffix join character
if [[ $line =~ ^([^~]+)~([^~]+)$ ]]; then
[[ $use_rc -eq 0 ]] && continue
line="${BASH_REMATCH[1]}-${BASH_REMATCH[2]}"
fi
[[ -n "$2" ]] && [[ ! "$line" =~ $2 ]] && continue
REMOTE_VERSIONS+=("$line")
done < <(parse_remote_versions | sort -V)
unset IFS
fi
}
latest_remote_version () {
load_remote_versions 1 "$1"
echo "${REMOTE_VERSIONS[${#REMOTE_VERSIONS[@]}-1]}"
}
check_environment () {
if [ $use_https -eq 1 ] && [ -z "$wget" ]; then
err "Abort, wget not found. Please apt install wget"
exit 3
fi
}
guard_run_as_root () {
if [ "$(id -u)" -ne 0 ]; then
echo "The '$run_action' command requires root privileges"
exit 2
fi
}
# execute requested action
case $run_action in
help)
echo "Usage: $0 -c|-l|-r|-u
Download & install the latest kernel available from $ppa_host$ppa_uri
Arguments:
-c Check if a newer kernel version is available
-i [VERSION] Install kernel VERSION, see -l for list. You don't have to prefix
with v. E.g. -i 4.9 is the same as -i v4.9. If version is
omitted the latest available version will be installed
-l [SEARCH] List locally installed kernel versions. If an argument to this
option is supplied it will search for that
-r [SEARCH] List available kernel versions. If an argument to this option
is supplied it will search for that
-u [VERSION] Uninstall the specified kernel version. If version is omitted,
a list of max 10 installed kernel versions is displayed
-h Show this message
Optional:
-s, --signed Only install signed kernel packages (not implemented)
-p, --path DIR The working directory, .deb files will be downloaded into
this folder. If omitted, the folder /tmp/$(basename "$0")/
is used. Path is relative from \$PWD
-ll, --low-latency Use the low-latency version of the kernel, only for amd64 & i386
-lpae, --lpae Use the Large Physical Address Extension kernel, only for armhf
--snapdragon Use the Snapdragon kernel, only for arm64
-do, --download-only Only download the deb files, do not install them
-ns, --no-signature Do not check the gpg signature of the checksums file
-nc, --no-checksum Do not check the sha checksums of the .deb files
-d, --debug Show debug information, all internal command's echo their output
--rc Also include release candidates
--yes Assume yes on all questions (use with caution!)
"
exit 2
;;
check)
check_environment
logn "Finding latest version available on $ppa_host"
latest_version=$(latest_remote_version)
log ": $latest_version"
logn "Finding latest installed version"
installed_version=$(latest_local_version)
installed_version=${installed_version%-*}
log ": $installed_version"
# Check if build was successful
if [ $doublecheckversion -gt 0 ]; then
ppa_uri=$ppa_index${latest_version%\.0}"/"
ppa_uri=${ppa_uri/\.0-rc/-rc}
index=$(download $ppa_host "$ppa_uri")
if [[ ! $index =~ $build_succeeded_text ]]; then
log "A newer kernel version ($latest_version) was found but the build was not successful"
[ -n "$DISPLAY" ] && [ -x "$(command -v notify-send)" ] && notify-send --icon=info -t 12000 \
"Kernel $latest_version available" \
"A newer kernel version ($latest_version) is\navailable but the build was not successful"
exit 1
fi
fi
# Check installed minor branch
latest_minor_text=""
latest_minor_notify=""
latest_minor_version=""
if [ -n "${installed_version}" ] && [ "${installed_version}" != "none" ] && [ "${latest_version%.*}" != "${installed_version%.*}" ]; then
latest_minor_version=$(latest_remote_version "${installed_version%.*}")
if [ "$installed_version" != "$latest_minor_version" ]; then
latest_minor_text=", latest in current branch is ${latest_minor_version}"
latest_minor_notify="Version ${latest_minor_version} is available in the current ${installed_version%.*} branch\n\n"
fi
fi
if [ "$installed_version" != "$latest_version" ] && [ "$installed_version" = "$(echo -e "$latest_version\n$installed_version" | sort -V | head -n1)" ]; then
log "A newer kernel version ($latest_version) is available${latest_minor_text}"
[ -n "$DISPLAY" ] && [ -x "$(command -v notify-send)" ] && notify-send --icon=info -t 12000 \
"Kernel $latest_version available" \
"A newer kernel version ($latest_version) is available\n\n${latest_minor_notify}Run '$(basename "$0") -i' to update\nor visit $ppa_host$ppa_uri"
exit 1
fi
;;
local-list)
load_local_versions
# shellcheck disable=SC2015
[[ -n "$(command -v column)" ]] && { column="column -x"; } || { column="cat"; }
(for version in "${LOCAL_VERSIONS[@]}"; do
if [ -z "${action_data[0]}" ] || [[ "$version" =~ ${action_data[0]} ]]; then
echo "$version"
fi
done) | $column
;;
remote-list)
check_environment
load_remote_versions
# shellcheck disable=SC2015
[[ -n "$(command -v column)" ]] && { column="column -x"; } || { column="cat"; }
(for version in "${REMOTE_VERSIONS[@]}"; do
if [ -z "${action_data[0]}" ] || [[ "$version" =~ ${action_data[0]} ]]; then
echo "$version"
fi
done) | $column
;;
install)
# only ensure running if the kernel files should be installed
[ $do_install -eq 1 ] && guard_run_as_root
check_environment
load_local_versions
if [ -z "${action_data[0]}" ]; then
logn "Finding latest version available on $ppa_host"
version=$(latest_remote_version)
log
if containsElement "$version" "${LOCAL_VERSIONS[@]}"; then
logn "Latest version is $version but seems its already installed"
else
logn "Latest version is: $version"
fi
if [ $do_install -gt 0 ] && [ $assume_yes -eq 0 ];then
logn ", continue? (y/N) "
[ $quiet -eq 0 ] && read -rsn1 continue
log
[ "$continue" != "y" ] && [ "$continue" != "Y" ] && { exit 0; }
else
log
fi
else
load_remote_versions
version=""
if containsElement "v${action_data[0]#v}" "${REMOTE_VERSIONS[@]}"; then
version="v"${action_data[0]#v}
fi
[[ -z "$version" ]] && {
err "Version '${action_data[0]}' not found"
exit 2
}
shift
if [ $do_install -gt 0 ] && containsElement "$version" "${LOCAL_VERSIONS[@]}" && [ $assume_yes -eq 0 ]; then
logn "It seems version $version is already installed, continue? (y/N) "
[ $quiet -eq 0 ] && read -rsn1 continue
log
[ "$continue" != "y" ] && [ "$continue" != "Y" ] && { exit 0; }
fi
fi
[ ! -d "$workdir" ] && {
mkdir -p "$workdir" 2>/dev/null
}
[ ! -x "$workdir" ] && {
err "$workdir is not writable"
exit 1
}
cd "$workdir" || exit 1
[ $check_signature -eq 1 ] && [ -z "$(command -v gpg)" ] && {
check_signature=0
warn "Disable signature check, gpg not available"
}
IFS=$'\n'
ppa_uri=$ppa_index${version%\.0}"/"
ppa_uri=${ppa_uri/\.0-rc/-rc}
index=$(download $ppa_host "$ppa_uri")
if [[ ! $index =~ $build_succeeded_text ]]; then
err "Abort, the ${arch} build has not succeeded"
exit 1
fi
index=${index%%*<table}
FILES=()
found_arch=0
uses_subfolders=0
section_end="^[[:space:]]*<br>[[:space:]]*$"
for line in $index; do
if [[ $line =~ $build_succeeded_text ]]; then
found_arch=1
continue
elif [ $found_arch -eq 0 ]; then
continue
elif [[ $line =~ $section_end ]]; then
break
fi
[[ "$line" =~ linux-(image(-(un)?signed)?|headers|modules)-[0-9]+\.[0-9]+\.[0-9]+-[0-9]{6}.*?_(${arch}|all).deb ]] || continue
[ $use_lowlatency -eq 0 ] && [[ "$line" =~ "-lowlatency" ]] && continue
[ $use_lowlatency -eq 1 ] && [[ ! "$line" =~ "-lowlatency" ]] && [[ ! "$line" =~ "_all" ]] && continue
[ $use_lpae -eq 0 ] && [[ "$line" =~ "-lpae" ]] && continue
[ $use_lpae -eq 1 ] && [[ ! "$line" =~ "-lpae" ]] && [[ ! "$line" =~ "_all" ]] && continue
[ $use_snapdragon -eq 0 ] && [[ "$line" =~ "-snapdragon" ]] && continue
[ $use_snapdragon -eq 1 ] && [[ ! "$line" =~ "-snapdragon" ]] && [[ ! "$line" =~ "_all" ]] && continue
line=${line##*href=\"}
line=${line%%\">*}
if [ $uses_subfolders -eq 0 ] && [[ $line =~ ${arch}/linux ]]; then
uses_subfolders=1
fi
FILES+=("$line")
done
unset IFS
if [ $check_signature -eq 1 ]; then
if [ $uses_subfolders -eq 0 ]; then
FILES+=("CHECKSUMS" "CHECKSUMS.gpg")
else
FILES+=("${arch}/CHECKSUMS" "${arch}/CHECKSUMS.gpg")
fi
fi
if [ ${#FILES[@]} -ne $expected_files_count ]; then
if [ $assume_yes -eq 0 ]; then
logn "Expected to need to download $expected_files_count files but found ${#FILES[@]}, continue? (y/N)"
read -rsn1 continue
echo ""
else
continue="y"
fi
[ "$continue" != "y" ] && [ "$continue" != "Y" ] && { exit 0; }
fi
debs=()
log "Will download ${#FILES[@]} files from $ppa_host:"
for file in "${FILES[@]}"; do
workfile=${file##*/}
monitor_progress "Downloading $file" "$workdir$workfile"
download $ppa_host "$ppa_uri$file" > "$workdir$workfile"
remove_http_headers "$workdir$workfile"
end_monitor_progress
if [[ "$workfile" =~ \.deb ]]; then
debs+=("$workfile")
fi
done
if [ $check_signature -eq 1 ]; then
if ! gpg --list-keys ${ppa_key} >$debug_target 2>&1; then
logn "Importing kernel-ppa gpg key "
if gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv ${ppa_key} >$debug_target 2>&1; then
log "ok"
else
logn "failed"
warn "Unable to check signature"
check_signature=0
fi
fi
if [ $check_signature -eq 1 ]; then
if gpg --verify CHECKSUMS.gpg CHECKSUMS >$debug_target 2>&1; then
log "Signature of checksum file has been successfully verified"
else
err "Abort, signature of checksum file is NOT OK"
exit 4
fi
fi
fi
if [ $check_checksum -eq 1 ]; then
shasums=( "sha256sum" "sha1sum" )
for shasum in "${shasums[@]}"; do
xshasum=$(command -v "$shasum")
if [ -n "$xshasum" ] && [ -x "$xshasum" ]; then
# shellcheck disable=SC2094
shasum_result=$($xshasum --ignore-missing -c CHECKSUMS 2>>$debug_target | tee -a $debug_target | wc -l)
if [ "$shasum_result" -eq 0 ] || [ "$shasum_result" -ne ${#debs[@]} ]; then
err "Abort, $shasum returned an error $shasum_result"
exit 4
else
log "Checksums of deb files have been successfully verified with $shasum"
fi
break
fi
done
fi
if [ $do_install -eq 1 ]; then
if [ ${#debs[@]} -gt 0 ]; then
log "Installing ${#debs[@]} packages"
$sudo dpkg -i "${debs[@]}" >$debug_target 2>&1
else
warn "Did not find any .deb files to install"
fi
else
log "deb files have been saved to $workdir"
fi
if [ $cleanup_files -eq 1 ]; then
log "Cleaning up work folder"
rm -f "$workdir"*.deb
rm -f "$workdir"CHECKSUM*
rmdir "$workdir"
fi
;;
uninstall)
guard_run_as_root
load_local_versions
if [ ${#LOCAL_VERSIONS[@]} -eq 0 ]; then
echo "No installed mainline kernels found"
exit 1
elif [ -z "${action_data[0]}" ]; then
echo "Which kernel version do you wish to uninstall?"
nr=0
for version in "${LOCAL_VERSIONS[@]}"; do
echo "[$nr]: $version"
nr=$((nr + 1))
[ $nr -gt 9 ] && break
done
echo -n "type the number between []: "
read -rn1 index
echo ""
uninstall_version=${LOCAL_VERSIONS[$index]}
elif containsElement "v${action_data[0]#v}" "${LOCAL_VERSIONS[@]}"; then
uninstall_version="v"${action_data[0]#v}
else
err "Kernel version ${action_data[0]} not installed locally"
exit 2
fi
if [ $assume_yes -eq 0 ]; then
echo -n "Are you sure you wish to remove kernel version $uninstall_version? (y/N)"
read -rsn1 continue
echo ""
else
continue="y"
fi
if [ "$continue" == "y" ] || [ "$continue" == "Y" ]; then
IFS=$'\n'
pckgs=()
for pckg in $(dpkg -l linux-{image,image-[un]?signed,headers,modules}-"${uninstall_version#v}"* 2>$debug_target | cut -d " " -f 3); do
# only match kernels from ppa, they have 6 characters as second version string
if [[ "$pckg" =~ linux-headers-[0-9]+\.[0-9]+\.[0-9]+-[0-9]{6} ]]; then
pckgs+=("$pckg:$arch")
pckgs+=("$pckg:all")
elif [[ "$pckg" =~ linux-(image(-(un)?signed)?|modules)-[0-9]+\.[0-9]+\.[0-9]+-[0-9]{6} ]]; then
pckgs+=("$pckg:$arch")
fi
done
if [ ${#pckgs[@]} -eq 0 ]; then
warn "Did not find any packages to remove"
else
echo "The following packages will be removed: "
echo "${pckgs[@]}"
if [ $assume_yes -eq 0 ]; then
echo -n "Are you really sure? Do you still have another kernel installed? (y/N)"
read -rsn1 continue
echo ""
else
continue="y"
fi
if [ "$continue" == "y" ] || [ "$continue" == "Y" ]; then
if $sudo env DEBIAN_FRONTEND=noninteractive dpkg --purge "${pckgs[@]}" 2>$debug_target >&2; then
log "Kernel $uninstall_version successfully purged"
exit 0
fi
fi
fi
fi
;;
esac
exit 0
标签：ppa,--,内核,&&,Ubuntu,action,fi,eq,20.04 来源： https://www.cnblogs.com/gooutlook/p/16306803.html
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