#!/bin/bash # Description: EL to AlmaLinux migration script. # License: GPLv3. # Environment variables: # ALMA_RELEASE_URL - almalinux-release package download URL. # ALMA_PUBKEY_URL - RPM-GPG-KEY-AlmaLinux download URL. set -euo pipefail BASE_TMP_DIR='/root' OS_RELEASE_PATH='/etc/os-release' REDHAT_RELEASE_PATH='/etc/redhat-release' STAGE_STATUSES_DIR='/var/run/almalinux-deploy-statuses' ALT_ADM_DIR="/var/lib/alternatives" BAK_DIR="/tmp/alternatives_backup" ALT_DIR="/etc/alternatives" # AlmaLinux OS 8.5 MINIMAL_SUPPORTED_VERSION='8.4' VERSION='0.1.13' DOWNGRADE='NO' BRANDING_PKGS=("centos-backgrounds" "centos-logos" "centos-indexhtml" \ "centos-logos-ipa" "centos-logos-httpd" \ "miraclelinux-backgrounds" "miraclelinux-logos" "miraclelinux-indexhtml" \ "miraclelinux-logos-ipa" "miraclelinux-logos-httpd" \ "oracle-backgrounds" "oracle-logos" "oracle-indexhtml" \ "oracle-logos-ipa" "oracle-logos-httpd" \ "oracle-epel-release-el8" "oracle-epel-release-el9" \ "redhat-backgrounds" "redhat-logos" "redhat-indexhtml" \ "redhat-logos-ipa" "redhat-logos-httpd" \ "rocky-backgrounds" "rocky-logos" "rocky-indexhtml" \ "rocky-logos-ipa" "rocky-logos-httpd" \ "vzlinux-backgrounds" "vzlinux-logos" "vzlinux-indexhtml" \ "vzlinux-logos-ipa" "vzlinux-logos-httpd") REMOVE_PKGS=("centos-linux-release" "centos-gpg-keys" "centos-linux-repos" \ "centos-stream-release" "centos-stream-repos" \ "kernel-uek" "kernel-uek-core" "kernel-uek-modules" \ "libreport-plugin-rhtsupport" "libreport-rhel" "insights-client" \ "libreport-rhel-anaconda-bugzilla" "libreport-rhel-bugzilla" \ "linux-firmware-core" "iwlax2xx-firmware" \ "miraclelinux-release" "miraclelinux-repos" "asianux-release" \ "axtsn-client-tools" "axtsn-setup" "dnf-axtu-plugin" \ "NetworkManager-config-connectivity-miraclelinux" \ "oraclelinux-release" "oraclelinux-release-el8" \ "oraclelinux-release-el9" "python3-gobject-base-noarch" \ "redhat-release" "redhat-release-eula" \ "rocky-release" "rocky-gpg-keys" "rocky-repos" \ "rocky-obsolete-packages" "libblockdev-btrfs" \ "vzlinux-release" "vzlinux-gpg-keys" "vzlinux-repos" "vzlinux-obsolete-packages" \ "evolution-data-server-ui" "epel-next-release" "openssl-fips-provider" "openssl-fips-provider-so") REDHAT_DNF_PLUGINS=("product-id" "subscription-manager" "upload-profile") REDHAT_REPO_FILES=("/etc/yum.repos.d/redhat.repo" "/etc/yum.repos.d/ubi.repo") REDHAT_RHSM_RPMS=("subscription-manager" "subscription-manager-cockpit" "cockpit" "rhc") module_list_enabled="" module_list_installed="" is_container=0 setup_log_files() { exec > >(tee /var/log/almalinux-deploy.log) exec 5> /var/log/almalinux-deploy.debug.log BASH_XTRACEFD=5 } # Save the successful status of a stage for future continue of it # $1 - name of a stage save_status_of_stage() { if [[ 0 != "$(id -u)" ]]; then # the function is called in tests and should be skipped return 0 fi local -r stage_name="${1}" if [[ ! -d "${STAGE_STATUSES_DIR}" ]]; then mkdir -p "${STAGE_STATUSES_DIR}" fi touch "${STAGE_STATUSES_DIR}/${stage_name}" } # Get a status of a stage for continue of it # $1 - name of a stage # The function returns 1 if stage isn't completed and 0 if it's completed get_status_of_stage() { if [[ 0 != "$(id -u)" ]]; then # the function is called in tests and should be skipped return 1 fi local -r stage_name="${1}" if [[ ! -d "${STAGE_STATUSES_DIR}" ]]; then return 1 fi if [[ ! -f "${STAGE_STATUSES_DIR}/${stage_name}" ]]; then return 1 fi return 0 } is_migration_completed() { if get_status_of_stage "completed"; then printf '\n\033[0;32mMigration to AlmaLinux was already completed\033[0m\n' exit 0 fi } # Reports a completed step using a green color. # # $1 - Message to print. report_step_done() { local -r message="${1}" printf '\033[0;32m%-70sOK\033[0m\n' "${message}" } # Reports a failed step using a red color. # # $1 - Message to print. # $2 - Additional information to show (optional). report_step_error() { local -r message="${1}" local -r trace="${2:-}" printf '\033[0;31m%-70sERROR\033[0m\n' "${message}" 1>&2 if [[ -n "${trace}" ]]; then echo "${trace}" | while read -r line; do printf ' %s\n' "${line}" 1>&2 done fi } # Prints program usage information. show_usage() { echo -e 'Migrates an EL system to AlmaLinux\n' echo -e 'Usage: almalinux-deploy.sh [OPTION]...\n' echo ' -h, --help show this message and exit' echo ' -f, --full perform yum upgrade to 8.5 if necessary' echo ' -d, --downgrade option to allow downgrade from CentOS Stream' echo ' -v, --version print version information and exit' } # Terminates the program if it is not run with root privileges assert_run_as_root() { if [[ $(id -u) -ne 0 ]]; then report_step_error 'Check root privileges' \ 'Migration tool must be run as root' exit 2 fi report_step_done 'Check root privileges' } # Terminates the program if UEFI Secure Boot is enabled assert_secureboot_disabled() { local -r message='Check Secure Boot disabled' if LC_ALL='C' mokutil --sb-state 2>/dev/null | grep -P '^SecureBoot\s+enabled' 1>/dev/null; then report_step_error "${message}" 'Secure Boot is not supported yet' exit 1 fi report_step_done "${message}" } # Prints a system architecture. get_system_arch() { uname -i } # Reads a variable value from /etc/os-release. # # $1 - variable name. # # Returns the variable value. get_os_release_var() { local -r var="${1}" local val if ! val="$(grep -oP "^${var}=\"\K.*?(?=\")" "${OS_RELEASE_PATH}")"; then echo "Error: ${var} is not found in ${OS_RELEASE_PATH}" >&2 exit 1 fi echo "${val}" } # Detects an operational system version. # # $1 - operational system type. # # Prints OS version. get_os_version() { local -r os_type="${1}" local -a no_minor_os_types=("centos" "miraclelinux" "virtuozzo") local os_version if [[ " ${no_minor_os_types[*]} " =~ [[:space:]]${os_type}[[:space:]] ]]; then if [[ "$(get_os_release_var 'NAME')" == 'CentOS Stream' ]]; then if [[ ! "${DOWNGRADE}" == 'YES' ]]; then report_step_error "Use '-d or --downgrade' option to allow downgrade from CentOS Stream" exit 1 fi os_version="$(get_os_release_var 'VERSION_ID')" else if ! os_version="$(grep -oP '\s+release\s+\K(\d+\.\d+)' \ "${REDHAT_RELEASE_PATH}" 2>/dev/null)"; then report_step_error "Detect ${os_type} version" fi fi else os_version="$(get_os_release_var 'VERSION_ID')" fi echo "${os_version}" } # Prints control type and version. get_panel_info() { local panel_type='' local panel_version='' local -r cpanel_file='/usr/local/cpanel/cpanel' local -r plesk_file='/usr/local/psa/version' if [[ -x "${cpanel_file}" ]]; then panel_type='cpanel' panel_version=$("${cpanel_file}" -V 2>/dev/null | grep -oP '^[\d.]+') elif [[ -f "${plesk_file}" ]]; then panel_type='plesk' panel_version=$(grep -oP '^[\d.]+' "${plesk_file}" 2>/dev/null) fi echo "${panel_type} ${panel_version}" } # Terminates the program if a platform is not supported by AlmaLinux. # # $1 - Operational system id (ID). # $2 - Operational system version (e.g. 8 or 8.3). # $3 - System architecture (e.g. x86_64). assert_supported_system() { if get_status_of_stage "assert_supported_system"; then return 0 fi local -r os_type="${1}" local -r os_version="${2:0:1}" local -r arch="${3}" case "${arch}" in x86_64|aarch64|ppc64le|s390x) ;; *) report_step_error "Check ${arch} architecture is supported" exit 1 ;; esac if [[ ${os_version} -lt ${MINIMAL_SUPPORTED_VERSION:0:1} ]]; then report_step_error "Check EL${os_version} is supported" exit 1 fi os_types=("centos" "almalinux" "miraclelinux" "ol" "rhel" "rocky" "virtuozzo") if [[ ! " ${os_types[*]} " =~ ${os_type} ]]; then report_step_error "Check ${os_type} operating system is supported" exit 1 fi report_step_done "Check ${os_type}-${os_version}.${arch} is supported" save_status_of_stage "assert_supported_system" return 0 } # Terminates the program if a control panel is not supported by AlmaLinux. # # $1 - Control panel type. # $2 - Control panel version. assert_supported_panel() { if get_status_of_stage "assert_supported_panel"; then return 0 fi local -r panel_type="${1}" local -r panel_version="${2}" local plesk_min_major=18 local plesk_min_minor=0 local plesk_min_micro=35 local major local minor local micro local error_msg="${panel_type} version \"${panel_version}\" is not supported. Please update the control panel to version \"${plesk_min_major}.${plesk_min_minor}.${plesk_min_micro}\"." if [[ "${panel_type}" == 'plesk' ]]; then local IFS=. read -r major minor micro << EOF ${panel_version} EOF if [[ -z ${micro} ]]; then micro=0 fi if [[ -z ${minor} ]]; then minor=0 fi if [[ ${major} -lt ${plesk_min_major} ]]; then report_step_error "${error_msg}" exit 1 elif [[ ${major} -eq ${plesk_min_major} && ${minor} -lt ${plesk_min_minor} ]]; then report_step_error "${error_msg}" exit 1 elif [[ ${major} -eq ${plesk_min_major} && ${minor} -eq ${plesk_min_minor} && ${micro} -lt ${plesk_min_micro} ]]; then report_step_error "${error_msg}" exit 1 fi fi save_status_of_stage "assert_supported_panel" } assert_supported_filesystem() { if get_status_of_stage "assert_supported_filesystem"; then return 0 fi local result if result=$(df -Th | awk '{print $2}' | grep btrfs); then report_step_error "${result} is not supported filesystem" exit 1 fi save_status_of_stage "assert_supported_filesystem" } # Returns a latest almalinux-release RPM package download URL. # # $1 - AlmaLinux major version (e.g. 8). # $2 - System architecture (e.g. x86_64). # # Prints almalinux-release RPM package download URL. get_release_file_url() { local -r os_version="${1:0:1}" local -r arch="${2}" echo "${ALMA_RELEASE_URL:-https://repo.almalinux.org/almalinux/almalinux-release-latest-${os_version}.${arch}.rpm}" } # Returns a latest almalinux-repos RPM package download URL. # # $1 - AlmaLinux major version (e.g. 9). # $2 - System architecture (e.g. x86_64). # # Prints almalinux-release RPM package download URL. get_repos_file_url() { local -r os_version="${1:0:1}" local -r arch="${2}" echo "${ALMA_REPOS_URL:-https://repo.almalinux.org/almalinux/almalinux-repos-latest-${os_version}.${arch}.rpm}" } # Returns a latest almalinux-gpg-keys RPM package download URL. # # $1 - AlmaLinux major version (e.g. 9). # $2 - System architecture (e.g. x86_64). # # Prints almalinux-gpg-keys RPM package download URL. get_gpg_keys_file_url() { local -r os_version="${1:0:1}" local -r arch="${2}" echo "${ALMA_REPOS_URL:-https://repo.almalinux.org/almalinux/almalinux-gpg-keys-latest-${os_version}.${arch}.rpm}" } # Downloads and installs the AlmaLinux public PGP key. # # $1 - Temporary directory path. # $2 - AlmaLinux major version (e.g. 8). install_rpm_pubkey() { if get_status_of_stage "install_rpm_pubkey"; then return 0 fi local -r tmp_dir="${1}" local -r os_version="${2:0:1}" local -r ALMA_PUBKEY_URL="https://repo.almalinux.org/almalinux/RPM-GPG-KEY-AlmaLinux-${os_version}" local -r pubkey_url="${ALMA_PUBKEY_URL:-https://repo.almalinux.org/almalinux/RPM-GPG-KEY-AlmaLinux}" local -r pubkey_path="${tmp_dir}/RPM-GPG-KEY-AlmaLinux" local -r step='Download RPM-GPG-KEY-AlmaLinux' local output if ! output=$(curl -f -s -S -o "${pubkey_path}" "${pubkey_url}" 2>&1); then report_step_error "${step}" "${output}" exit 1 else report_step_done "${step}" fi rpm --import "${pubkey_path}" report_step_done 'Import RPM-GPG-KEY-AlmaLinux to RPM DB' rm -f "${pubkey_path}" save_status_of_stage "install_rpm_pubkey" } # Downloads almalinux-release package. # # $1 - Temporary directory path. # $2 - almalinux-release package download URL. # # Prints downloaded file path. download_release_files() { local -r tmp_dir="${1}" local -r release_url="${2}" local -r release_path="${tmp_dir}/almalinux-release-latest.rpm" local output if ! output=$(curl -f -s -S -o "${release_path}" "${release_url}" 2>&1); then report_step_error 'Download almalinux packages - release' "${output}" exit 1 fi echo "${release_path}" } # Downloads almalinux-repos package. # # $1 - Temporary directory path. # $2 - almalinux-repos package download URL. # # Prints downloaded file path. download_repos_files() { local -r tmp_dir="${1}" local -r repos_url="${2}" local -r repos_path="${tmp_dir}/almalinux-repos.rpm" local output if ! output=$(curl -f -s -S -o "${repos_path}" "${repos_url}" 2>&1); then report_step_error 'Download almalinux packages - repos' "${output}" exit 1 fi echo "${repos_path}" } # Downloads almalinux-gpg-keys package. # # $1 - Temporary directory path. # $2 - almalinux-gpg-keys package download URL. # # Prints downloaded file path. download_gpg_keys_files() { local -r tmp_dir="${1}" local -r gpg_keys_url="${2}" local -r gpg_keys_path="${tmp_dir}/almalinux-gpg-keys.rpm" local output if ! output=$(curl -f -s -S -o "${gpg_keys_path}" "${gpg_keys_url}" 2>&1); then report_step_error 'Download almalinux packages - gpg-keys' "${output}" exit 1 fi echo "${gpg_keys_path}" } # Terminates the program if a given RPM package checksum/signature is invalid. # # $1 - RPM package path. assert_valid_package() { local -r pkg_path="${1}" local output if ! output=$(rpm -K "${pkg_path}" 2>&1); then report_step_error "Verify $(basename "${pkg_path}") package" \ "${output}" exit 1 fi report_step_done 'Verify almalinux-release package' } # # Change repo file to point to last CentOS 8 release in vault # # $1 - Repo id. # $2 - Repo name. # $3 - Repo name for earlier releases if different from name. # $4 - Repo subdir if different from name. fix_repo_file() { local -r repo_id="${1}" local -r repo_name="${2}" local -r repo_name_alt="${3-$2}" local -r repo_subdir="${4:-$2}" if [ -f "/etc/yum.repos.d/CentOS-Linux-${repo_name}.repo" ]; then sed -i -e "/mirrorlist=http:\/\/mirrorlist.centos.org\/?release=\$releasever&arch=\$basearch&repo=/ s/^#*/#/" -e "/baseurl=http:\/\/mirror.centos.org\/\$contentdir\/\$releasever\// s/^#*/#/" -e "/^\[${repo_id}\]/a baseurl=https://mirror.rackspace.com/centos-vault/8.5.2111/${repo_subdir}/\$basearch/os" "/etc/yum.repos.d/CentOS-Linux-${repo_name}.repo" elif [ -f "/etc/yum.repos.d/CentOS-${repo_name_alt}.repo" ]; then sed -i -e "/mirrorlist=http:\/\/mirrorlist.centos.org\/?release=\$releasever&arch=\$basearch&repo=/ s/^#*/#/" -e "/baseurl=http:\/\/mirror.centos.org\/\$contentdir\/\$releasever\// s/^#*/#/" -e "/^\[\(${repo_id}\|${repo_name}\)\]/a baseurl=https://mirror.rackspace.com/centos-vault/8.5.2111/${repo_subdir}/\$basearch/os" "/etc/yum.repos.d/CentOS-${repo_name_alt}.repo" elif [ -n "${repo_name_alt}" ]; then echo "Error: No repo file found for ${repo_name}" >&2 return 1 fi } # # Perform dnf upgrade (and fix repos since CentOS mirrorlist is offline as of 2022-01-31) # dnf_upgrade() { local -r step='Fix DNF repositories to live mirror and run dnf upgrade -y' if [[ "$(get_os_release_var 'NAME')" != 'CentOS Stream' ]]; then fix_repo_file baseos BaseOS Base fix_repo_file appstream AppStream fix_repo_file cr ContinuousRelease CR fix_repo_file devel Devel '' fix_repo_file extras Extras Extras extras fix_repo_file fasttrack FastTrack fasttrack fasttrack fix_repo_file ha HighAvailability '' fix_repo_file plus Plus centosplus fix_repo_file powertools PowerTools fix_repo_file crb CRB fi dnf upgrade -y || { ret_code=${?} if [[ ${ret_code} -ne 0 ]]; then report_step_error "${step}. Exit code: ${ret_code}" exit ${ret_code} fi } # Make sure RPM DB is clean for gpg key installation in a subsequent step dnf clean dbcache report_step_done 'DNF upgrade' } # Terminates the program if OS version doesn't match AlmaLinux version. # # $1 - OS version. # $2 - almalinux-release package file path. assert_compatible_os_version() { if get_status_of_stage "assert_compatible_os_version"; then return 0 fi local -r os_version="${1}" local -r release_path="${2}" local alma_version alma_version=$(rpm -qp --queryformat '%{version}' "${release_path}") if [[ "$(get_os_release_var 'NAME')" != 'CentOS Stream' ]]; then if [[ "${os_version:0:1}" -lt "${MINIMAL_SUPPORTED_VERSION:0:1}" ]] && [[ "${os_version:2:3}" -lt "${MINIMAL_SUPPORTED_VERSION:2:3}" ]]; then report_step_error "Please upgrade your OS from ${os_version} to" \ "at least ${MINIMAL_SUPPORTED_VERSION} and try again" exit 1 fi fi if [[ "${os_version:0:1}" -lt "${alma_version:0:1}" ]] && [[ "${os_version:2:3}" -gt "${alma_version:2:3}" ]]; then report_step_error "Version of your OS ${os_version} is not supported yet" exit 1 fi report_step_done 'Your OS is supported' save_status_of_stage "assert_compatible_os_version" } # Backup /etc/issue* files backup_issue() { if get_status_of_stage "backup_issue"; then return 0 fi for file in $(rpm -Vf /etc/issue | cut -d' ' -f4); do if [[ ${file} =~ "/etc/issue" ]]; then cp "${file}" "${file}.bak" fi done save_status_of_stage "backup_issue" } # Restore /etc/issue* files restore_issue() { if get_status_of_stage "restore_issue"; then return 0 fi for file in /etc/issue /etc/issue.net; do [ ! -f "${file}.bak" ] || mv -f ${file}.bak ${file} done save_status_of_stage "restore_issue" } # Cleanup sssd(8) cache cleanup_sss_cache() { if get_status_of_stage "cleanup_sss_cache"; then return 0 fi if [[ "${DOWNGRADE}" == 'YES' ]]; then for file in /var/lib/sss/db/cache_*.ldb; do if [ -f "${file}" ]; then mv -f "${file}" "${file}.bak" fi done fi save_status_of_stage "cleanup_sss_cache" } # Recursively removes a given directory. # # $1 - Directory path. cleanup_tmp_dir() { rm -fr "${1:?}" } # Remove OS specific packages remove_os_specific_packages_before_migration() { if get_status_of_stage "remove_os_specific_packages_before_migration"; then return 0 fi for i in "${!REMOVE_PKGS[@]}"; do if ! rpm -q "${REMOVE_PKGS[i]}" &> /dev/null; then # remove an erased package from the list if it isn't installed unset "REMOVE_PKGS[i]" fi done if [[ "${#REMOVE_PKGS[@]}" -ne 0 ]]; then rpm -e --nodeps --allmatches "${REMOVE_PKGS[@]}" fi report_step_done 'Remove OS specific rpm packages' save_status_of_stage "remove_os_specific_packages_before_migration" } # Remove not needed Red Hat directories remove_not_needed_redhat_dirs() { if get_status_of_stage "remove_not_needed_redhat_dirs"; then return 0 fi [ -d /usr/share/doc/redhat-release ] && rm -r /usr/share/doc/redhat-release [ -d /usr/share/redhat-release ] && rm -r /usr/share/redhat-release save_status_of_stage "remove_not_needed_redhat_dirs" } # Install package almalinux-release install_almalinux_release_package() { if get_status_of_stage "install_almalinux_release_package"; then return 0 fi local -r release_path="${1}" rpm -Uvh --nodeps "${release_path}" report_step_done 'Install almalinux-release package' save_status_of_stage "install_almalinux_release_package" } # Install package almalinux-repos install_almalinux_repos_package() { if get_status_of_stage "install_almalinux_repos_package"; then return 0 fi local -r repos_path="${1}" rpm -Uvh --nodeps "${repos_path}" report_step_done 'Install almalinux-repos package' save_status_of_stage "install_almalinux_repos_package" } # Install package almalinux-gpg-keys # # $1 - full path (including package filename) to the almalinux-gpg-keys package install_almalinux_gpg_keys_package() { if get_status_of_stage "install_almalinux_gpg_keys_package"; then return 0 fi local -r gpg_keys_path="${1}" rpm -Uvh --nodeps "${gpg_keys_path}" report_step_done 'Install almalinux-gpg-keys package' save_status_of_stage "install_almalinux_gpg_keys_package" } # Remove brand packages and install the same AlmaLinux packages replace_brand_packages() { if get_status_of_stage "replace_brand_packages"; then return 0 fi local alma_pkgs=() local alma_pkg local output local pkg_name # replace GUI packages for i in "${!BRANDING_PKGS[@]}"; do pkg_name="${BRANDING_PKGS[i]}" if rpm -q "${pkg_name}" &>/dev/null; then # shellcheck disable=SC2001 case "${pkg_name}" in oracle-epel-release-el*) alma_pkg="epel-release" ;; *) # shellcheck disable=SC2001 alma_pkg="$(echo "${pkg_name}" | sed 's#centos\|miraclelinux\|oracle\|redhat\|rocky\|vzlinux#almalinux#')" ;; esac alma_pkgs+=("${alma_pkg}") else unset "BRANDING_PKGS[i]" fi done if [[ "${#BRANDING_PKGS[@]}" -ne 0 ]]; then rpm -e --nodeps --allmatches "${BRANDING_PKGS[@]}" report_step_done "Remove ${BRANDING_PKGS[*]} packages" fi if [[ "${#alma_pkgs[@]}" -ne 0 ]]; then if ! output=$(dnf install -y "${alma_pkgs[@]}" 2>&1); then report_step_error "Install ${alma_pkgs[*]} packages" "${output}" fi report_step_done "Install ${alma_pkgs[*]} packages" fi save_status_of_stage "replace_brand_packages" } # Converts a CentOS like system to AlmaLinux # # $1 - almalinux-release RPM package path. # $2 - almalinux-repos RPM package path. # $3 - almalinux-gpg-keys RPM package path migrate_from_centos() { if get_status_of_stage "migrate_from_centos"; then return 0 fi local -r release_path="${1}" case "${os_version}" in 9*) local -r repos_path="${2}" local -r gpg_keys_path="${3}" ;; esac # replace OS packages with almalinux-release # and OS centos-specific packages remove_os_specific_packages_before_migration remove_not_needed_redhat_dirs install_almalinux_release_package "${release_path}" case "${os_version}" in 9*) install_almalinux_repos_package "${repos_path}" install_almalinux_gpg_keys_package "${gpg_keys_path}" ;; esac replace_brand_packages save_status_of_stage "migrate_from_centos" } # Reset modules stream ol8 for OracleLinux reset_wrong_module_streams() { module_list_enabled=$(dnf -e 1 module list --enabled | awk '$2 == "ol8" {printf $1" "}') module_list_installed=$(dnf -e 1 module list --installed | awk '$2 == "ol8" {printf $1" "}') if [ -n "${module_list_enabled}" ]; then # shellcheck disable=SC2086 dnf module reset -y ${module_list_enabled} echo "reset modules: ${module_list_enabled}" report_step_done "Reset modules" fi } # Executes the 'dnf distro-sync -y' command. # # $1 - operational system type. # distro_sync() { if get_status_of_stage "distro_sync"; then return 0 fi local -r step='Run dnf distro-sync -y' local ret_code=0 local -r os_version="${1}" case "${os_version}" in 8*) local dnf_repos="--enablerepo=powertools" ;; 9*) local dnf_repos="--enablerepo=crb" ;; esac local exclude_pkgs="--exclude=" # create needed repo if [ "${panel_type}" == "plesk" ]; then plesk installer --select-release-current --show-components --skip-cleanup dnf_repos+=",PLESK_*-dist" fi dnf check-update || { ret_code=${?} if [[ ${ret_code} -ne 0 ]] && [[ ${ret_code} -ne 100 ]]; then report_step_error "${step}. Exit code: ${ret_code}" exit ${ret_code} fi } # check if we inside lxc container if [ $is_container -eq 1 ]; then exclude_pkgs+="filesystem*,grub*" fi dnf distro-sync -y "${dnf_repos}" "${exclude_pkgs}" || { ret_code=${?} report_step_error "${step}. Exit code: ${ret_code}" exit ${ret_code} } # remove unnecessary repo if [ "${panel_type}" == "plesk" ]; then plesk installer --select-release-current --show-components fi report_step_done "${step}" save_status_of_stage "distro_sync" } # Enable reseted modules with new stream rhel8 restore_module_streams() { if [ -n "${module_list_enabled}" ]; then # shellcheck disable=SC2001,2086 module_enabled_rhel=$(echo ${module_list_enabled} | sed -e 's# #:rhel8 #g') # shellcheck disable=SC2086 dnf module enable -y ${module_enabled_rhel} echo "re-enabled modules: ${module_enabled_rhel}" report_step_done "Enable modules" fi if [ -n "${module_list_installed}" ]; then # shellcheck disable=SC2001,2086 module_installed_rhel=$(echo ${module_list_installed} | sed -e 's# #:rhel8 #g') # shellcheck disable=SC2086 dnf module install -y ${module_installed_rhel} echo "installed modules: ${module_installed_rhel}" report_step_done "Install modules" fi } install_kernel() { if get_status_of_stage "install_kernel"; then return 0 fi if ! output=$(rpm -q kernel 2>&1); then if output=$(dnf -y install kernel 2>&1); then report_step_done "Install AlmaLinux kernel" else report_step_error "Install AlmaLinux kernel" fi fi save_status_of_stage "install_kernel" } grub_update() { if get_status_of_stage "grub_update"; then return 0 fi if [ "$(which grub2-mkconfig)" ] ; then if [ -d /sys/firmware/efi ]; then grub2-mkconfig -o /etc/grub2-efi.cfg else grub2-mkconfig -o /etc/grub2.cfg fi fi save_status_of_stage "grub_update" } # Check do we have custom kernel (e.g. kernel-uek) and print warning check_custom_kernel() { if get_status_of_stage "check_custom_kernel"; then return 0 fi local output output=$(rpm -qa | grep kernel-uek) || : if [ -n "${output}" ]; then if [ -x /usr/bin/mokutil ] && /usr/bin/mokutil --sb-state 2>&1 | grep -q enabled; then echo -ne "\n!! There are kernels left from previous operating system that won't boot in Secure Boot mode anymore:\n" else echo "There are kernels left from previous operating system:" fi # shellcheck disable=SC2001,SC2086 echo "$output" | sed 's# #\n#' echo "" echo "If you don't need them, you can remove them by using the 'dnf remove" \ "${output}' command" fi save_status_of_stage "check_custom_kernel" } _backup_alternative() { local path="${1}" local bak_dir="${2}" local bak_prefix="current_point" local alt_name= local alt_dest= local alt_link= alt_name="$(basename "${path}")" alt_link="${ALT_DIR}/${alt_name}" alt_dest="$(readlink "${alt_link}")" mkdir -p "${bak_dir}" # backup the current state of an alternative echo "${alt_dest} ${alt_link}" > "${bak_dir}/${bak_prefix}.${alt_name}" } _restore_alternative() { local path="${1}" local bak_dir="${2}" local bak_point="${bak_dir}/current_point" local alt_name= local shift_begin=3 local shift_middle=2 local main_link= local alternatives=() local priorities=() local links=() local dests=() local names=() local line= local _alt_link= local _alt_dest= local alt_link= local alt_dest= local i= local empty_num= local len= local begin_index= local end_index= len="$(wc -l < "${path}")" # name of a backup alternatives, e.g. python or java alt_name="$(basename "${path}")" # system link which points to an alternative, e.g. # /usr/bin/unversioned-python -> /etc/alternatives/python main_link="$(sed -n -e 2p "${path}")" i=0 # this cycle saves info about slave's links # and slave's names of an alternative # e.g. # unversioned-python - name # /usr/bin/python - link # python2 - name # /usr/bin/python2 - link # unversioned-python-man - name # /usr/share/man/man1/python.1.gz - link while read -r line; do i=$(("${i}" + 1)) if [[ -z $line ]]; then empty_num=$(("${shift_begin}" + "${i}")) break fi if [[ $(( "${i}" % 2 )) -eq 0 ]]; then links+=("$line") else names+=("$line") fi done < <(tail -n +${shift_begin} "${path}") # this cycle saves info about available alternatives and them priorites # e.g. # /usr/libexec/no-python alternative with priority 404 # /usr/bin/python3 alternative with priority 300 while [[ "${len}" -gt $(("${#names[@]}" + "${empty_num}")) ]]; do alternatives+=("$(sed -n -e "${empty_num}"p "${path}")") priorities+=("$(sed -n -e $(("${empty_num}" + 1))p "${path}")") begin_index="$(("${empty_num}" + "${shift_middle}"))" end_index="$(("${#names[@]}" + "${shift_middle}" + "${empty_num}"))" # this cycle saves info about slave's dests for an each alternative, # e.g. # /usr/bin/python3 - dest for /usr/bin/python #/usr/share/man/man1/python3.1.gz - dest for /usr/share/man/man1/python.1.gz # destination can be empty and in this case we don't create symlink if [[ "${begin_index}" -ne "${end_index}" ]]; then while read -r line; do dests+=("$line") done < <(sed -n -e "${begin_index}","${end_index}"p "${path}") fi empty_num=$(("${empty_num}" + "${#names[@]}" + "${shift_middle}")) done # read and restore current state of an alternative # e.g. # /etc/alternatives/python -> /usr/libexec/no-python while read -r _alt_dest _alt_link; do alt_link="${_alt_link}" alt_dest="${_alt_dest}" if [[ ! -e "${alt_link}" ]]; then ln -sf "${alt_dest}" "${alt_link}" fi done < "${bak_point}.${alt_name}" for i in "${!alternatives[@]}"; do if [[ ! -e "${main_link}" ]]; then # restore system symlink for alternative, e.g. # /usr/bin/unversioned-python -> /etc/alternatives/python ln -sf "${alt_link}" "${main_link}" fi for j in "${!names[@]}"; do if [[ "${alt_dest}" == "${alternatives[$i]}" ]]; then if [[ -e "${dests[$(( "${j}" + "${#links[@]}" * "${i}"))]}" && ! -e "${ALT_DIR}/${names[$j]}" ]]; then # restore system slave link to an alternative, e.g. # /etc/alternatives/unversioned-python-man -> /usr/share/man/man1/unversioned-python.1.gz ln -sf "${dests[$(( "${j}" + "${#links[@]}" * "${i}"))]}" "${ALT_DIR}/${names[$j]}" fi if [[ -e "${ALT_DIR}/${names[$j]}" && ! -e "${links[$j]}" ]]; then # restore slave link for an alternative # e.g. /usr/share/man/man1/python.1.gz -> /etc/alternatives/unversioned-python-man ln -sf "${ALT_DIR}/${names[$j]}" "${links[$j]}" fi fi done done } # backup existing alternatives, including the current states of alternatives backup_alternatives() { if get_status_of_stage "backup_alternatives"; then return 0 fi for alt_file in "${ALT_ADM_DIR}"/*; do _backup_alternative "${alt_file}" "${BAK_DIR}" done /usr/bin/cp -rf "${ALT_ADM_DIR}" "${BAK_DIR}"/. report_step_done "Backup of alternatives is done" save_status_of_stage "backup_alternatives" } # restore existing alternatives, including the current states of alternatives restore_alternatives() { if get_status_of_stage "restore_alternatives"; then return 0 fi for alt_file in "${BAK_DIR}/alternatives/"*; do _restore_alternative "${alt_file}" "${BAK_DIR}" done /usr/bin/cp -rn "${BAK_DIR}/alternatives/"* "${ALT_ADM_DIR}/" report_step_done "Restoring of alternatives is done" save_status_of_stage "restore_alternatives" } add_efi_boot_record() { if get_status_of_stage "add_efi_boot_record"; then return 0 fi if [[ ! -d /sys/firmware/efi ]]; then return fi local device local disk_name local disk_num local soft_dev1 local soft_dev2 local disk_name1 local disk_name2 local disk_num1 local disk_num2 local arch arch="$(get_system_arch)" device="$(df -T /boot/efi | sed -n 2p | awk '{ print $1}')" if [[ $device == *"/dev/md"* ]]; then echo "ESP Partition on software raid detected:" soft_dev1="$(lsblk -f -l -p | grep boot_efi |sed -n 1p | awk '{ print $1}')" soft_dev2="$(lsblk -f -l -p | grep boot_efi |sed -n 2p | awk '{ print $1}')" echo "$soft_dev1" echo "$soft_dev2" disk_name1="$(echo "${soft_dev1}" | sed -re 's/(p|)[0-9]$//g')" disk_name2="$(echo "${soft_dev2}" | sed -re 's/(p|)[0-9]$//g')" disk_num1="$(echo "${soft_dev1}" | tail -c 2|sed 's|[^0-9]||g')" disk_num2="$(echo "${soft_dev2}" | tail -c 2|sed 's|[^0-9]||g')" else disk_name="$(echo "${device}" | sed -re 's/(p|)[0-9]$//g')" disk_num="$(echo "${device}" | tail -c 2|sed 's|[^0-9]||g')" fi if [[ ${arch} == "x86_64" && $device == *"/dev/md"* ]]; then efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimx64.efi" -d "${disk_name1}" -p "${disk_num1}" efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimx64.efi" -d "${disk_name2}" -p "${disk_num2}" elif [[ ${arch} == "aarch64" && $device == *"/dev/md"* ]]; then efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimaa64.efi" -d "${disk_name1}" -p "${disk_num1}" efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimaa64.efi" -d "${disk_name2}" -p "${disk_num2}" elif [[ ${arch} == "x86_64" ]]; then efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimx64.efi" -d "${disk_name}" -p "${disk_num}" elif [[ ${arch} == "aarch64" ]]; then efibootmgr -c -L "AlmaLinux" -l "\EFI\almalinux\shimaa64.efi" -d "${disk_name}" -p "${disk_num}" fi report_step_done "The new EFI boot record for AlmaLinux is added" save_status_of_stage "add_efi_boot_record" } reinstall_secure_boot_packages() { if get_status_of_stage "reinstall_secure_boot_packages"; then return 0 fi if [ "$(which grubby)" ] ; then #if this happens on a system with GRUB and related tools, rather than on RPi local kernel_package for pkg in $(rpm -qa | grep -E 'shim|fwupd|grub2'); do if [[ "AlmaLinux" != "$(rpm -q --queryformat '%{vendor}' "$pkg")" ]]; then yum reinstall "${pkg}" -y fi done kernel_package="$(rpm -qf "$(grubby --default-kernel)")" if [[ "AlmaLinux" != "$(rpm -q --queryformat '%{vendor}' "${kernel_package}")" ]]; then yum reinstall "${kernel_package}" -y fi fi report_step_done "All Secure Boot related packages which were not released by AlmaLinux are reinstalled" save_status_of_stage "reinstall_secure_boot_packages" } disable_dnf_plugin() { local plugin="$1" local conf conf="/etc/dnf/plugins/${plugin}.conf" if [ -f "${conf}" ]; then sed -i -e 's/^enabled\s*=\s*1/enabled=0/g' "${conf}" else printf '[main]\nenabled=0\n' > "${conf}" fi } disable_redhat_dnf_plugins() { local plugin for plugin in "${REDHAT_DNF_PLUGINS[@]}"; do disable_dnf_plugin "${plugin}" done } subscription_manager_unregister() { if get_status_of_stage "subscription_manager_unregister"; then return 0 fi if subscription-manager status >/dev/null 2>&1; then subscription-manager remove --all subscription-manager unregister subscription-manager clean fi report_step_done "Red Hat Subscription Manager deactivated" save_status_of_stage "subscription_manager_unregister" } remove_redhat_rhsm_rpms() { if get_status_of_stage "remove_redhat_rhsm_rpms"; then return 0 fi rpm -e --nodeps "${REDHAT_RHSM_RPMS[@]}" >/dev/null 2>&1 || true report_step_done "Red Hat Subscription Manager packages are removed (with rpm --nodeps)" save_status_of_stage "remove_redhat_rhsm_rpms" } remove_redhat_repo_files() { if get_status_of_stage "remove_redhat_repo_files"; then return 0 fi local repo for repo in "${REDHAT_REPO_FILES[@]}"; do if [ -e "${repo}" ]; then mv -f "${repo}" "${repo}.$(date -u '+%s')" fi done report_step_done "Remove RHEL repositories' files if any" save_status_of_stage "remove_redhat_repo_files" } main() { is_migration_completed local arch local os_version local os_type local release_url local tmp_dir local release_path local panel_type local panel_version assert_run_as_root arch="$(get_system_arch)" os_type="$(get_os_release_var 'ID')" os_version="$(get_os_version "${os_type}")" #os_version="$(get_os_release_var 'VERSION_ID')" #os_version="${os_version:0:1}" assert_supported_system "${os_type}" "${os_version}" "${arch}" assert_supported_filesystem read -r panel_type panel_version < <(get_panel_info) assert_supported_panel "${panel_type}" "${panel_version}" release_url=$(get_release_file_url "${os_version}" "${arch}") tmp_dir=$(mktemp -d --tmpdir="${BASE_TMP_DIR}" .alma.XXXXXX) # shellcheck disable=SC2064 trap "cleanup_tmp_dir ${tmp_dir}" EXIT install_rpm_pubkey "${tmp_dir}" "${os_version}" release_path=$(download_release_files "${tmp_dir}" "${release_url}") report_step_done 'Download almalinux-release package' if mount 2>/dev/null | grep -q fuse.lxcfs || env | grep -q 'container=lxc' || awk '{print $1}' /proc/vz/veinfo 2>/dev/null || grep docker '/proc/1/cgroup' >/dev/null || test -e /.dockerenv; then printf '\033[0;32mDeploying inside container\033[0m\n' is_container=1 fi assert_valid_package "${release_path}" assert_compatible_os_version "${os_version}" "${release_path}" case "${os_type}" in almalinux|centos|miraclelinux|ol|rhel|rocky|virtuozzo) backup_issue if [[ "${os_type}" == "rhel" ]]; then subscription_manager_unregister remove_redhat_rhsm_rpms remove_redhat_repo_files fi case "${os_version}" in 8*) migrate_from_centos "${release_path}" ;; 9*) repos_url=$(get_repos_file_url "${os_version}" "${arch}") repos_path=$(download_repos_files "${tmp_dir}" "${repos_url}") gpg_keys_url=$(get_gpg_keys_file_url "${os_version}" "${arch}") gpg_keys_path=$(download_gpg_keys_files "${tmp_dir}" "${gpg_keys_url}") migrate_from_centos "${release_path}" "${repos_path}" "${gpg_keys_path}" ;; esac ;; *) report_step_error "Migrate ${os_type}: not supported" exit 1 ;; esac backup_alternatives reset_wrong_module_streams distro_sync "${os_version}" restore_module_streams restore_alternatives restore_issue cleanup_sss_cache # don't do this steps if we inside the lxc container if [ $is_container -eq 0 ]; then install_kernel grub_update reinstall_secure_boot_packages add_efi_boot_record fi check_custom_kernel save_status_of_stage "completed" printf '\n\033[0;32mMigration to AlmaLinux is completed\033[0m\n' } if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then for opt in "$@"; do case ${opt} in -h | --help) show_usage exit 0 ;; -f | --full) dnf_upgrade ;; -v | --version) echo "${VERSION}" exit 0 ;; -d | --downgrade) DOWNGRADE='YES' ;; -t | --tests) exit 0 ;; *) echo "Error: unknown option ${opt}" >&2 exit 2 ;; esac done setup_log_files set -x main set +x fi