rocky-tools/migrate2rocky/migrate2rocky.sh
Peter Ajamian fe473ae20b Add color back in
We previously removed color because (1) it was outputting the color codes to the
log file, which we do not want and (2) nobody could agree on what colors to use.
I've reintroduced color now fixing (1) by allowing for separate output to the
log file and the console and only sending the color codes to the console and (2)
well, I've changed the blue for info messages to cyan, hopefully everyone's
happy with that, but I'm open to suggestions on the info color.

There are now three more file descriptors for specialized output control, making a total of 5:

fd1 - This sends to stdout and to the log file.
fd2 - This sends to stderr and the log file.
fd3 - This just sends to stdout.
fd4 - This just sends to stderr.
fd5 - This just sends to the logfile.

There are also three additional functions:

msg_format - Intended to be used by infomsg and errmsg, this accepts a variable
name and one or more string args.  If there is just one string after the
variable name then it is copied to the variable verbatim.  If there is more than
one then it is taken to be a format specifier and additional args to be passed
to printf (output going to the variable).

infomsg - This will accept either a single arg which contains a verbatim string
or multiple format / args to be processed by printf.  The output of this will be
sent to the log file and also color coded and sent to stdout.

errmsg - Like infomsg but it uses the error color and sends output to stderr
instead of stdout.
2021-06-21 00:01:02 +12:00

768 lines
24 KiB
Bash

#!/bin/bash
#
# migrate2rocky - Migrate another EL8 distribution to RockyLinux 8.
# By: Peter Ajamian <peter@pajamian.dhs.org>
# Adapted from centos2rocky.sh by label <label@rockylinux.org>
#
# The latest version of this script can be found at:
# https://github.com/rocky-linux/rocky-tools
#
# Copyright (c) 2021 Rocky Enterprise Software Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
## Rocky is RC status. Using this script means you accept all risks of system
## instability.
# These checks need to be right at the top because we start with bash-isms right
# away in this script.
if [ -n "$POSIXLY_CORRECT" ] || [ -z "$BASH_VERSION" ]; then
printf '%s\n' "bash >= 4.0 is required for this script." >&2
exit 1
fi
# We need bash version >= 4 for associative arrays.
if (( BASH_VERSINFO < 4 )); then
printf '%s\n' "bash >= 4.0 is required for this script." >&2
exit 1
fi
# Make sure we're root.
if (( EUID != 0 )); then
printf '%s\n' "You must run this script as root. Either use sudo or 'su -c ${0}'" >&2
exit 1
fi
# Path to logfile
logfile=/var/log/migrate2rocky.log
# Send all output to the logfile as well as stdout.
# After the following we get:
# Output to 1 goes to stdout and the logfile.
# Output to 2 goes to stderr and the logfile.
# Output to 3 just goes to stdout.
# Output to 4 just goes to stderr.
# Output to 5 just goes to the logfile.
truncate -s0 "$logfile"
exec \
3>&1 \
4>&2 \
5>> "$logfile" \
> >(tee -a "$logfile") \
2> >(tee -a "$logfile" >&2)
# List nocolor last here so that -x doesn't bork the display.
errcolor=$(tput setaf 1)
infocolor=$(tput setaf 6)
nocolor=$(tput op)
# Single arg just gets returned verbatim, multi arg gets formatted via printf.
# First arg is the name of a variable to store the results.
msg_format () {
local _var
_var="$1"
shift
if (( $# > 1 )); then
printf -v "$_var" "$@"
else
printf -v "$_var" "%s" "$1"
fi
}
# Send an info message to the log file and stdout (with color)
infomsg () {
local msg
msg_format msg "$@"
printf '%s' "$msg" >&5
printf '%s%s%s' "$infocolor" "$msg" "$nocolor" >&3
}
# Send an error message to the log file and stderr (with color)
errmsg () {
local msg
msg_format msg "$@"
printf '%s' "$msg" >&5
printf '%s%s%s' "$errcolor" "$msg" "$nocolor" >&4
}
export LANG=en_US.UTF-8
shopt -s nullglob
SUPPORTED_MAJOR="8"
SUPPORTED_PLATFORM="platform:el$SUPPORTED_MAJOR"
ARCH=$(arch)
gpg_key_url="https://dl.rockylinux.org/pub/rocky/RPM-GPG-KEY-rockyofficial"
gpg_key_sha512="88fe66cf0a68648c2371120d56eb509835266d9efdf7c8b9ac8fc101bdf1f0e0197030d3ea65f4b5be89dc9d1ef08581adb068815c88d7b1dc40aa1c32990f6a"
# all repos must be signed with the same key given in $gpg_key_url
declare -A repo_urls
repo_urls=(
[rockybaseos]="https://dl.rockylinux.org/pub/rocky/${SUPPORTED_MAJOR}/BaseOS/$ARCH/os/"
[rockyappstream]="https://dl.rockylinux.org/pub/rocky/${SUPPORTED_MAJOR}/AppStream/$ARCH/os/"
)
unset CDPATH
exit_message() {
errmsg $'\n'"$1"$'\n\n'
final_message
exit 1
}
final_message() {
errmsg '%s ' \
"An error occurred while we were attempting to convert your system to" \
"Rocky Linux. Your system may be unstable. Script will now exit to" \
"prevent possible damage."$'\n\n'
logmessage
}
logmessage(){
printf '%s%s%s\n' "$infocolor" \
"A log of this installation can be found at $logfile" \
"$nocolor" >&3
}
# This just grabs a field from os-release and returns it.
os-release () (
. /etc/os-release
if ! [[ ${!1} ]]; then
return 1
fi
printf '%s\n' "${!1}"
)
# Check the version of a package against a supplied version number. Note that
# this uses sort -V to compare the versions which isn't perfect for rpm package
# versions, but to do a proper comparison we would need to use rpmdev-vercmp in
# the rpmdevtools package which we don't want to force-install. sort -V should
# be adequate for our needs here.
pkg_ver() (
ver=$(rpm -q --qf '%{VERSION}\n' "$1") || return 2
if [[ $(sort -V <<<"$ver"$'\n'"$2" | head -1) != "$2" ]]; then
return 1
fi
return 0
)
pre_check () {
if [[ -e /etc/rhsm/ca/katello-server-ca.pem ]]; then
exit_message "Migration from Katello-modified systems is not supported by migrate2rocky."
fi
}
# All of the binaries used by this script are available in a EL8 minimal install
# and are in /bin, so we should not encounter a system where the script doesn't
# work unless it's severly broken. This is just a simple check that will cause
# the script to bail if any expected system utilities are missing.
bin_check() {
# Check the platform.
if [[ $(os-release PLATFORM_ID) != "$SUPPORTED_PLATFORM" ]]; then
exit_message "This script must be run on an EL8 distribution. Migration from other distributions is not supported."
fi
local -a missing bins
bins=(
rpm dnf awk column tee tput mkdir
cat arch sort uniq rmdir rm head
curl sha512sum mktemp
)
if [[ $update_efi ]]; then
bins+=(findmnt grub2-mkconfig efibootmgr grep mokutil)
fi
for bin in "${bins[@]}"; do
if ! type "$bin" >/dev/null 2>&1; then
missing+=("$bin")
fi
done
if ! pkg_ver dnf 4.2; then
exit_message 'dnf >= 4.2 is required for this script. Please run "dnf update" first.'
fi
if (( ${#missing[@]} )); then
exit_message "Commands not found: ${missing[*]}. Possible bad PATH setting or corrupt installation."
fi
}
# This function will overwrite the repoquery_results associative array with the
# info for the resulting package. Note that we explicitly disable the epel repo
# as a special-case below to avoid having the extras repository map to epel.
repoquery () {
local name val prev result
result=$(
dnf -q --setopt=epel.excludepkgs=epel-release repoquery -i "$1" ||
exit_message "Failed to fetch info for package $1."
)
if ! [[ $result ]]; then
# We didn't match this package, the repo could be disabled.
return 1
fi
declare -gA repoquery_results=()
while IFS=" :" read -r name val; do
if [[ -z $name ]]; then
repoquery_results[$prev]+=" $val"
else
prev=$name
repoquery_results[$name]=$val
fi
done <<<"$result"
}
# This function will overwrite the repoinfo_results associative array with the
# info for the resulting repository.
repoinfo () {
local name val result
result=$(dnf -q repoinfo "$1") ||
exit_message "Failed to fetch info for repository $1."
if [[ $result == 'Total packages: 0' ]]; then
# We didn't match this repo.
return 1
fi
declare -gA repoinfo_results=()
while IFS=" :" read -r name val; do
if [[ -z $name ]]; then
repoinfo_results[$prev]+=" $val"
else
prev=$name
repoinfo_results[$name]=$val
fi
done <<<"$result"
# dnf repoinfo doesn't return the gpgkey, but we need that so we have to get
# it from the repo file itself.
# "end_of_file" is a hack here. Since it is not a valid dnf setting we know
# it won't appear in a .repo file on a line by itself, so it's safe to
# search for the string to make the awk parser look all the way to the end
# of the file.
repoinfo_results[Repo-gpgkey]=$(
awk '
$0=="['"${repoinfo_results[Repo-id]}"']",$0=="end_of_file" {
if (l++ < 1) {next}
else if (/^\[.*\]$/) {nextfile}
else if (sub(/^gpgkey\s*=\s*file:\/\//,"")) {print; nextfile}
else {next}
}
' < "${repoinfo_results[Repo-filename]}"
)
# Add an indicator of whether this is a subscription-manager managed
# repository.
repoinfo_results[Repo-managed]=$(
awk '
BEGIN {FS="[)(]"}
/^# Managed by \(.*\) subscription-manager$/ {print $2}
' < "${repoinfo_results[Repo-filename]}"
)
}
provides_pkg () (
if [[ ! $1 ]]; then
return 0
fi
set -o pipefail
provides=$(dnf -q provides "$1" | awk '{print $1; nextfile}') ||
return 1
set +o pipefail
pkg=$(rpm -q --queryformat '%{NAME}\n' "$provides") ||
pkg=$(dnf -q repoquery --queryformat '%{NAME}\n' "$provides") ||
exit_message "Can't get package name for $provides."
printf '%s\n' "$pkg"
)
# If you pass an empty arg as one of the package specs to rpm it will match
# every package on the system. This funtion simply strips out any empty args
# and passes the rest to rpm to avoid this side-effect.
saferpm () (
args=()
for a in "$@"; do
if [[ $a ]]; then
args+=("$a")
fi
done
rpm "${args[@]}"
)
# And a similar function for dnf
safednf () (
args=()
for a in "$@"; do
if [[ $a ]]; then
args+=("$a")
fi
done
dnf "${args[@]}"
)
collect_system_info () {
# Check the efi mount first, so we can bail before wasting time on all these
# other checks if it's not there.
if [[ $update_efi ]]; then
declare -g efi_mount
efi_mount=$(findmnt --mountpoint /boot/efi --output SOURCE \
--noheadings) ||
exit_message "Can't find EFI mount. No EFI boot detected."
fi
# check if EFI secure boot is enabled
if [[ $update_efi ]]; then
if mokutil --sb-state 2>&1 | grep -q "SecureBoot enabled"; then
exit_message "EFI Secure Boot is enabled but Rocky Linux doesn't provide a signed shim yet. Disable EFI Secure Boot and reboot."
fi
fi
# Don't enable these module streams, even if they are enabled in the source
# distro.
declare -g -a module_excludes
module_excludes=(
libselinux-python:2.8
)
# We need to map rockylinux repository names to the equivalent repositories
# in the source distro. To do that we look for known packages in each
# repository and see what repo they came from. We need to use repoquery for
# this which requires downloading the package, so we pick relatively small
# packages for this.
declare -g -A repo_map pkg_repo_map
declare -g -a managed_repos
pkg_repo_map=(
[baseos]=rootfiles.noarch
[appstream]=apr-util-ldap.$ARCH
[ha]=pacemaker-doc.noarch
[powertools]=libaec-devel.$ARCH
[extras]=epel-release.noarch
)
# [devel]=quota-devel.$ARCH
PRETTY_NAME=$(os-release PRETTY_NAME)
infomsg '%s' \
"Preparing to migrate $PRETTY_NAME to Rocky Linux 8."$'\n\n' \
"Determining repository names for $PRETTY_NAME"
for r in "${!pkg_repo_map[@]}"; do
printf '.'
p=${pkg_repo_map[$r]}
repoquery "$p" || continue
repo_map[$r]=${repoquery_results[Repository]}
done
printf '%s\n' '' '' "Found the following repositories which map from $PRETTY_NAME to Rocky Linux 8:"
column -t -s $'\t' -N "$PRETTY_NAME,Rocky Linux 8" < <(for r in "${!repo_map[@]}"; do
printf '%s\t%s\n' "${repo_map[$r]}" "$r"
done)
infomsg $'\n'"Getting system package names for $PRETTY_NAME"
# We don't know what the names of these packages are, we have to discover
# them via various means. The most common means is to look for either a
# distro-agnostic provides or a filename. In a couple of cases we need to
# jump through hoops to get a filename that is provided specifically by the
# source distro.
# Get info for each repository to determine which ones are subscription
# managed.
# system-release here is a bit of a hack, but it ensures that the
# rocky-repos package will get installed.
for r in "${!repo_map[@]}"; do
repoinfo "${repo_map[$r]}"
if [[ $r == "baseos" ]]; then
local baseos_filename=system-release
if [[ ! ${repoinfo_results[Repo-managed]} ]]; then
baseos_filename="${repoinfo_results[Repo-filename]}"
fi
local baseos_gpgkey="${repoinfo_results[Repo-gpgkey]}"
fi
if [[ ${repoinfo_results[Repo-managed]} ]]; then
managed_repos+=("${repo_map[$r]}")
fi
done
# First get info for the baseos repo
repoinfo "${repo_map[baseos]}"
declare -g -A pkg_map provides_pkg_map
declare -g -a addl_provide_removes addl_pkg_removes
provides_pkg_map=(
[rocky-backgrounds]=system-backgrounds
[rocky-indexhtml]=redhat-indexhtml
[rocky-repos]="$baseos_filename"
[rocky-logos]=system-logos
[rocky-gpg-keys]="$baseos_gpgkey"
[rocky-release]=system-release
)
addl_provide_removes=(
redhat-release-eula
)
for pkg in "${!provides_pkg_map[@]}"; do
printf '.'
prov=${provides_pkg_map[$pkg]}
pkg_map[$pkg]=$(provides_pkg "$prov") ||
exit_message "Can't get package that provides $prov."
done
for prov in "${addl_provide_removes[@]}"; do
printf '.'
local pkg;
pkg=$(provides_pkg "$prov") || continue
addl_pkg_removes+=("$pkg")
done
printf '%s\n' '' '' "Found the following system packages which map from $PRETTY_NAME to Rocky Linux 8:"
column -t -s $'\t' -N "$PRETTY_NAME,Rocky Linux 8" < <(for p in "${!pkg_map[@]}"; do
printf '%s\t%s\n' "${pkg_map[$p]}" "$p"
done)
infomsg $'\n'"Getting list of installed system packages."$'\n'
readarray -t installed_packages < <(saferpm -qa --queryformat="%{NAME}\n" "${pkg_map[@]}")
declare -g -A installed_pkg_check installed_pkg_map
for p in "${installed_packages[@]}"; do
installed_pkg_check[$p]=1
done
for p in "${!pkg_map[@]}"; do
if [[ ${pkg_map[$p]} && ${installed_pkg_check[${pkg_map[$p]}]} ]]; then
installed_pkg_map[$p]=${pkg_map[$p]}
fi
done;
printf '%s\n' '' "We will replace the following $PRETTY_NAME packages with their Rocky Linux 8 equivalents"
column -t -s $'\t' -N "Packages to be Removed,Packages to be Installed" < <(
for p in "${!installed_pkg_map[@]}"; do
printf '%s\t%s\n' "${installed_pkg_map[$p]}" "$p"
done
)
if (( ${#addl_pkg_removes[@]} )); then
printf '%s\n' '' "In addition to the above the following system packages will be removed:" \
"${addl_pkg_removes[@]}"
fi
# Release packages that are part of SIG's should be listed below when they
# are available.
# UPDATE: We may or may not do something with SIG's here, it could just be
# left as a separate excersize to swap out the sig repos.
#sigs_to_swap=()
infomsg '%s' $'\n' \
$'Getting a list of enabled modules for the system repositories.\n'
# Get a list of system enabled modules.
readarray -t enabled_modules < <(
set -e -o pipefail
safednf -q "${repo_map[@]/#/--repo=}" module list --enabled |
awk '
$1 == "@modulefailsafe", /^$/ {next}
$1 == "Name", /^$/ {if ($1!="Name" && !/^$/) print $1":"$2}
' | sort -u
set +e +o pipefail
)
# Remove entries matching any excluded modules.
if (( ${#module_excludes[@]} )); then
printf '%s\n' '' "Excluding modules:" "${module_excludes[@]}"
local -A module_check='()'
local -a tmparr='()'
for m in "${module_excludes[@]}"; do
module_check[$m]=1
done
for m in "${enabled_modules[@]}"; do
if [[ ! ${module_check[$m]} ]]; then
tmparr+=("$m")
fi
done
enabled_modules=("${tmparr[@]}")
fi
printf '%s\n' '' "Found the following modules to re-enable at completion:" \
"${enabled_modules[@]}" ''
if (( ${#managed_repos[@]} )); then
printf '%s\n' '' "In addition, since this system uses subscription-manger the following managed repos will be disabled:" \
"${managed_repos[@]}"
fi
}
convert_info_dir=/root/convert
unset convert_to_rocky reinstall_all_rpms verify_all_rpms update_efi
usage() {
printf '%s\n' \
"Usage: ${0##*/} [OPTIONS]" \
'' \
'Options:' \
'-h Display this help' \
'-r Convert to rocky' \
'-V Verify switch' \
' !! USE WITH CAUTION !!'
exit 1
} >&2
generate_rpm_info() {
mkdir /root/convert
infomsg "Creating a list of RPMs installed: $1"$'\n'
rpm -qa --qf "%{NAME}|%{VERSION}|%{RELEASE}|%{INSTALLTIME}|%{VENDOR}|%{BUILDTIME}|%{BUILDHOST}|%{SOURCERPM}|%{LICENSE}|%{PACKAGER}\n" | sort > "${convert_info_dir}/$HOSTNAME-rpm-list-$1.log"
infomsg "Verifying RPMs installed against RPM database: $1"$'\n\n'
rpm -Va | sort -k3 > "${convert_info_dir}/$HOSTNAME-rpm-list-verified-$1.log"
}
package_swaps() {
# prepare repo parameters
local -a dnfparameters
for repo in "${!repo_urls[@]}"; do
dnfparameters+=( "--repofrompath=${repo},${repo_urls[${repo}]}" )
dnfparameters+=( "--setopt=${repo}.gpgcheck=1" )
dnfparameters+=( "--setopt=${repo}.gpgkey=file://${gpg_key_file}" )
done
# Use dnf shell to swap the system packages out.
safednf -y shell --disablerepo=\* --noautoremove \
--setopt=protected_packages= --setopt=keepcache=True \
"${dnfparameters[@]}" \
<<EOF
remove ${installed_pkg_map[@]} ${addl_pkg_removes[@]}
install ${!installed_pkg_map[@]}
run
exit
EOF
# rocky-repos and rocky-gpg-keys are now installed, so we don't need the key file anymore
rm -rf "$gpg_tmp_dir"
# We need to check to make sure that all of the original system packages
# have been removed and all of the new ones have been added. If a package
# was supposed to be removed and one with the same name added back then
# we're kind of screwed for this check, as we can't be certain, but all the
# packages we're adding start with "rocky-*" so this really shouldn't happen
# and we can safely not check for it. The worst that will happen is a rocky
# linux package will be removed and then installed again.
local -a check_removed check_installed
readarray -t check_removed < <(
saferpm -qa --qf '%{NAME}\n' "${installed_pkg_map[@]}" \
"${addl_pkg_removes[@]}" | sort -u
)
if (( ${#check_removed[@]} )); then
infomsg '%s' $'\n' \
"Packages found on system that should still be removed. Forcibly" \
" removing them with rpm:"$'\n'
# Removed packages still found on the system. Forcibly remove them.
for pkg in "${check_removed[@]}"; do
# Extra safety measure, skip if empty string
if [[ -z $pkg ]]; then
continue
fi
printf '%s\n' "$pkg"
saferpm -e --allmatches --nodeps "$pkg" ||
saferpm -e --allmatches --nodeps --noscripts --notriggers "$pkg"
done
fi
# Check to make sure we installed everything we were supposed to.
readarray -t check_installed < <(
{
printf '%s\n' "${!installed_pkg_map[@]}" | sort -u
saferpm -qa --qf '%{NAME}\n' "${!installed_pkg_map[@]}" | sort -u
} | sort | uniq -u
)
if (( ${#check_installed[@]} )); then
infomsg '%s' $'\n' \
"Some required packages were not installed by dnf. Attempting to" \
" force with rpm:"$'\n'
# Get a list of rpm packages to package names
local -A rpm_map
local -a file_list
for rpm in /var/cache/dnf/{rockybaseos,rockyappstream}-*/packages/*.rpm
do
rpm_map[$(
rpm -q --qf '%{NAME}\n' --nodigest "$rpm" 2>/dev/null
)]=$rpm
done
# Attempt to install.
for pkg in "${check_installed[@]}"; do
printf '%s\n' "$pkg"
if ! rpm -i --force --nodeps --nodigest "${rpm_map[$pkg]}" \
2>/dev/null; then
# Try to install the package in just the db, then clean it up.
rpm -i --force --justdb --nodeps --nodigest "${rpm_map[$pkg]}" \
2>/dev/null
# Get list of files that are still causing problems and donk
# them.
readarray -t file_list < <(
rpm -V "$pkg" 2>/dev/null | awk '$1!="missing" {print $2}'
)
for file in "${file_list[@]}"; do
rmdir "$file" ||
rm -f "$file" ||
rm -rf "$file"
done
# Now try re-installing the package to replace the missing
# files. Regardless of the outcome here we just accept it and
# move on and hope for the best.
rpm -i --reinstall --force --nodeps --nodigest \
"${rpm_map[$pkg]}" 2>/dev/null
fi
done
fi
# Distrosync
infomsg $'\nRemoving dnf cache\n'
rm -rf /var/cache/{yum,dnf}
infomsg $'Ensuring repos are enabled before the package swap\n'
safednf -y config-manager --set-enabled "${!repo_map[@]}" || {
printf '%s\n' 'Repo name missing?'
exit 25
}
if (( ${#managed_repos[@]} )); then
# Filter the managed repos for ones still in the system.
readarray -t managed_repos < <(
safednf -q repolist "${managed_repos[@]}" | awk '$1!="repo" {print $1}'
)
if (( ${#managed_repos[@]} )); then
infomsg $'\nDisabling subscription managed repos\n'
safednf -y config-manager --disable "${managed_repos[@]}"
fi
fi
if (( ${#enabled_modules[@]} )); then
infomsg $'Enabling modules\n\n'
safednf -y module enable "${enabled_modules[@]}" ||
exit_message "Can't enable modules ${enabled_modules[*]}"
fi
# Make sure that excluded repos are disabled.
infomsg $'Disabling excluded modules\n\n'
safednf -y module disable "${module_excludes[@]}" ||
exit_message "Can't disable modules ${module_excludes[*]}"
infomsg $'\nSyncing packages\n\n'
dnf -y distro-sync || exit_message "Error during distro-sync."
}
# Check if this system is running on EFI
# If yes, we'll need to run fix_efi() at the end of the conversion
efi_check () {
# Check if we have /sys mounted and it is looking sane
if ! [[ -d /sys/class/block ]]; then
exit_message "/sys is not accessible."
fi
# Now that we know /sys is reliable, use it to check if we are running on EFI or not
if [[ -d /sys/firmware/efi/ ]]; then
declare -g update_efi
update_efi=true
fi
}
# Called to update the EFI boot.
fix_efi () (
grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cfg ||
exit_message "Error updating the grub config."
efibootmgr -c -d "$efi_mount" -L "Rocky Linux" -l /EFI/rocky/grubx64.efi ||
exit_message "Error updating uEFI firmware."
)
# Download and verify the Rocky Linux package signing key
establish_gpg_trust () {
# create temp dir and verify it is really created and empty, so we are sure deleting it afterwards won't cause any harm
declare -g gpg_tmp_dir
if ! gpg_tmp_dir=$(mktemp -d) || [[ ! -d "$gpg_tmp_dir" ]]; then
exit_message "Error creating temp dir"
fi
# failglob makes pathname expansion fail if empty, dotglob adds files starting with . to pathname expansion
if ( shopt -s failglob dotglob; : "$gpg_tmp_dir"/* ) 2>/dev/null ; then
exit_message "Temp dir not empty"
fi
# extract the filename from the url, use the temp dir just created
declare -g gpg_key_file="$gpg_tmp_dir/${gpg_key_url##*/}"
if ! curl -o "$gpg_key_file" --silent --show-error "$gpg_key_url"; then
rm -rf "$gpg_tmp_dir"
exit_message "Error downloading the Rocky Linux signing key."
fi
if ! sha512sum --quiet -c <<<"$gpg_key_sha512 $gpg_key_file"; then
rm -rf "$gpg_tmp_dir"
exit_message "Error validating the signing key."
fi
}
## End actual work
noopts=0
while getopts "hrVR" option; do
(( noopts++ ))
case "$option" in
h)
usage
;;
r)
convert_to_rocky=true
;;
V)
verify_all_rpms=true
;;
*)
errmsg $'Invalid switch\n'
usage
;;
esac
done
if (( ! noopts )); then
usage
fi
pre_check
efi_check
bin_check
if [[ $verify_all_rpms ]]; then
generate_rpm_info begin
fi
if [[ $convert_to_rocky ]]; then
collect_system_info
establish_gpg_trust
package_swaps
fi
if [[ $verify_all_rpms && $convert_to_rocky ]]; then
generate_rpm_info finish
infomsg $'You may review the following files:\n'
find /root/convert -type f -name "$HOSTNAME-rpms-*.log"
fi
if [[ $update_efi && $convert_to_rocky ]]; then
fix_efi
fi
printf '\n\n\n'
if [[ $convert_to_rocky ]]; then
infomsg $'\nDone, please reboot your system.\n'
fi
logmessage