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https://github.com/rocky-linux/rocky-tools.git
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Merge pull request #20 from pajamian/main
remove centos2rocky.sh and update README
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Louis Abel
GitHub
commit
2c95485314
2 changed files with 11 additions and 305 deletions
20
README.md
20
README.md
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@ -4,28 +4,30 @@ Rocky Tools
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Various scripts and tools that we find useful, whether we use them or they are
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made for public consumption. For example, conversion scripts or otherwise.
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## [Centos2Rocky] -- Conversion Script
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## [migrate2rocky] -- Conversion Script
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Running this script will convert an existing CentOS 8 system to Rocky Linux 8.
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### Usage
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```bash
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./centos2rocky.sh -h
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├── -h # --> Displays this help
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├── -r # --> Converts to Rocky
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├── -V # --> Verifies switch
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└── -R # --> Reinstalls all packages
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./migrate2rocky.sh -h
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├── -h # --> Display this help
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├── -r # --> Convert to Rocky
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└── -V # --> Verify switch
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[!! USE WITH CAUTION !!]
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```
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### Debugging
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The `centos2rocky` script pipes everything shown on `stdout` to `/var/log/centos2rocky.log`.
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The `migrate2rocky` script pipes everything shown on `stdout` and `stderr` to
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`/var/log/migrate2rocky.log`.
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If you run in to issues executing this script, please submit an issue [here](https://github.com/rocky-linux/rocky-tools/issues).
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If you run in to issues executing this script, please submit an issue
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[here](https://github.com/rocky-linux/rocky-tools/issues).
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Make sure to [include the output log](https://pastebin.com/), and remove any sensitive information. (if any)
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Make sure to include the output log, and remove any sensitive information. (if
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any)
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Feel free to create a pull request if you think you've got the fix.
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296
centos2rocky.sh
296
centos2rocky.sh
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@ -1,296 +0,0 @@
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#!/usr/bin/env bash
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# label <label@rockylinux.org>
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# Supports only CentOS 8.3
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## Rocky is RC status. Using this script means you accept all risks of system instability.
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# Path to logfile
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logfile=/var/log/centos2rocky.log
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# Send all output to the logfile as well as stdout.
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truncate -s0 "$logfile"
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exec > >(tee -a "$logfile") 2> >(tee -a "$logfile" >&2)
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errcolor=$(tput setaf 1)
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nocolor=$(tput op)
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blue=$(tput setaf 4)
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set -e
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unset CDPATH
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if [[ "$(id -u)" -ne 0 ]]; then
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printf '%s\n' "$errcolor" "You must run this script as root.$nocolor" \
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"${errcolor}Either use sudo or 'su -c ${0}'$nocolor"
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fi
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if ! type curl >/dev/null 2>&1; then
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printf '%s\n' "${blue}Curl is not installed! Installing it...$nocolor"
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dnf -y install curl libcurl
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fi
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export LANG=en_US.UTF-8
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SUPPORTED_RELEASE="8.3"
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SUPPORTED_MAJOR="8"
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ARCH=$(arch)
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current_url="https://dl.rockylinux.org/pub/rocky/${SUPPORTED_RELEASE}/BaseOS/${ARCH}/os/Packages"
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# These are packages that can be swapped safely over and will have more added over time.
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packages_to_swap=(
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centos-backgrounds \
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centos-indexhtml \
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centos-linux-repos \
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centos-logos \
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centos-gpg-keys \
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centos-linux-release)
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packages_that_exist=($(rpm -q --queryformat="%{NAME}\n" "${packages_to_swap[@]}" | grep -v "not installed"))
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release_to_install=($(curl -L -s ${current_url} | awk -F '"' '/rocky-repos|rocky-gpg-keys|rocky-release/ {print $2}'))
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# Release packages that are part of SIG's should be listed below when they are available.
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#sigs_to_swap=()
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# Defaults
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list_enabled=("$(dnf repolist enabled | awk '!/repo/ {print $1}')")
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enabled_modules=("$(dnf module list --enabled | grep rhel | awk '{print $1}')")
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convert_info_dir=/root/convert
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reinstall_all_rpms=false
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verify_all_rpms=false
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usage() {
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printf '%s\n' \
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"Usage: ${0##*/} [OPTIONS]" \
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'' \
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'Options:' \
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'-h displays this help' \
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'-r Converts to rocky' \
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'-V Verifies switch' \
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'-R Reinstall all packages' \
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' !! USE WITH CAUTION !!'
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exit 1
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} >&2
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exit_message() {
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printf '%s\n' "$1"
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final_message
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exit 1
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} >&2
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final_message() {
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printf '%s\n' "${errcolor}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.$nocolor"
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logmessage
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}
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logmessage(){
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printf '%s\n' "${blue}A log of this installation can be found at $logfile$nocolor"
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}
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## The actual work
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bin_hash() {
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hash "$1" >/dev/null 2>&1
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}
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bin_check() {
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if ! bin_hash "$1"; then
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exit_message "'${1}' command not found. Please ensure you are running bash or that your PATH is set correctly."
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logmessage
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fi
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}
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generate_rpm_info() {
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mkdir /root/convert
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printf '%s\n' "${blue}Creating a list of RPMs installed: $1$nocolor"
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rpm -qa --qf "%{NAME}|%{VERSION}|%{RELEASE}|%{INSTALLTIME}|%{VENDOR}|%{BUILDTIME}|%{BUILDHOST}|%{SOURCERPM}|%{LICENSE}|%{PACKAGER}\n" | sort > "${convert_info_dir}/$(hostname)-rpm-list-$1.log"
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printf '%s\n' "${blue}Verifying RPMs installed against RPM database: $1$nocolor" ''
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rpm -Va | sort -k3 > "${convert_info_dir}/$(hostname)-rpm-list-verified-$1.log"
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}
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package_swaps() {
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mkdir /root/release
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pushd /root/release
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for x in "${release_to_install[@]}"; do
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curl -s "${current_url}/${x}" > "$x" || {
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printf '%s\n' "${errcolor}failed to download ${x}$nocolor" '' &&
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logmessage
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exit 20
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}
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done
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# Remove packages we need to swap
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rpm -e --nodeps "${packages_that_exist[@]}"
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# Install our release
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rpm -ihv "${release_to_install[@]}"
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# Distrosync if the above succeeded
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if [[ $? -eq 0 ]]; then
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printf '%s\n' "${blue}Removing dnf cache$nocolor"
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rm -rf /var/cache/{yum,dnf}
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printf '%s\n' "${blue}Ensuring repos are enabled before the package swap$nocolor"
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dnf config-manager --set-enabled ${list_enabled[@]} || {
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printf '%s\n' 'Repo name missing?'
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exit 25
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}
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dnf distro-sync -y
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else
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exit_message "We failed to install the release package."
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logmessage
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fi
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popd
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}
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sig_swaps() {
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exit_message "Not Available"
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}
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grub_swap() {
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if [ -d /sys/firmware/efi ]; then
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grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cfg
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else
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grub2-mkconfig -o /boot/grub2/grub.cfg
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fi
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}
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module_check() {
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printf '%s\n' "${blue}Finding our modules that are enabled$nocolor"
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for module in "${enabled_modules[@]}"; do
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case ${module} in
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container-tools|go-toolset|jmc|llvm-toolset|rust-toolset|virt)
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;;
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*)
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unknown_modules+=("${module}")
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;;
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esac
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done
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if [[ ${#unknown_modules[@]} -gt 0 ]]; then
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printf '%s\n' "${unknown_modules[@]}" \
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"${blue}There are some modules that are unsure of how to handle. This normally shouldn't happen. Do you want to resolve this yourself (Yes) or continue (No)?$nocolor"
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select yn in "Yes" "No"; do
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case $yn in
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Yes)
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printf '%s\n' "${errcolor}Unsure how to switch modules, so we are leaving.$nocolor"
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logmessage
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exit 1
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;;
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No)
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break
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;;
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esac
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done
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fi
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}
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# This is just in case. There is a likelihood this will have to be done.
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module_fix() {
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for module in "${enabled_modules[@]}"; do
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dnf module reset -y "${module}"
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case ${module} in
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container-tools|go-toolset|jmc|llvm-toolset|rust-toolset|virt)
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dnf module install "${module}" -y
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;;
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*)
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printf '%s\n' "${errcolor}Unsure how to deal with the module presented.$nocolor"
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logmessage
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;;
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esac
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# Final update
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dnf update -y
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done
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}
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## End actual work
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while getopts "hrVR" option; do
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case "$option" in
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h)
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usage
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;;
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r)
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reinstall_all_rpms=true
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;;
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V)
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verify_all_rpms=true
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;;
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*)
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printf '%s\n' "${errcolor}Invalid switch.$nocolor"
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usage
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;;
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esac
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done
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printf '%s\n' "${blue}Ensuring rpm and yum are here.$nocolor"
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for pkg in rpm yum curl; do
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bin_check "${pkg}"
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done
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printf '%s\n' "${blue}Ensuring your version of CentOS is supported$nocolor"
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if ! old_release=$(rpm -q --whatprovides /etc/redhat-release); then
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exit_message "You are not running a supported distribution."
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logmessage
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fi
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if [ "$(echo "${old_release}" | wc -l)" -ne 1 ]; then
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exit_message "You seem to have package issues. More than one package provides redhat-release."
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logmessage
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fi
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if ! grep ${SUPPORTED_RELEASE} -q /etc/redhat-release; then
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exit_message "${SUPPORTED_RELEASE} is only supported for conversion at this time. Stream is not supported."
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logmessage
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fi
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if "${verify_all_rpms}"; then
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generate_rpm_info begin
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fi
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case "${old_release}" in
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centos-linux-release*);;
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rocky-release*)
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exit_message "You are already running Rocky."
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logmessage
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;;
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*)
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exit_message "You are running an unsupported distribution. Good bye."
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logmessage
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esac
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# Check our modules before a swap
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module_check
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# Actually do the swap and distro-sync
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package_swaps
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# Reconfigure grub
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grub_swap
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# Fix up modules
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module_fix
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# Warning, this is potentially dangerous.
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if "${reinstall_all_rpms}"; then
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printf '%s\n' "${errcolor}!! THIS MAY CAUSE ISSUES WITH YOUR SYSTEM !!$nocolor"
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rpm_list=("$(rpm -qa --qf "%{NAME}-%{VERSION}-%{RELEASE} %{VENDOR}\n" | grep CentOS | awk '{print $1}')")
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if [[ -n "${rpm_list[*]}" ]]; then
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printf '%s ' 'Reinstalling rpms:' "${rpm_list[@]}"
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dnf reinstall "${rpm_list[@]}" -y
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fi
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non_rocky_rpm=("$(rpm -qa --qf "%{NAME}-%{VERSION}-%{RELEASE}|%{VENDOR}|%{PACKAGER}\n" |grep -iv Rocky)")
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if [[ -n ${non_rocky_rpm[*]} ]]; then
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printf '%s\n' "${blue}Non-Rocky packages are installed. This is generally not an issue. If you see centos packages, you may need to address them and file a bug report at https://bugs.rockylinux.org$nocolor"
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printf '\t%s\n' "${non_rocky_rpm[@]}"
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fi
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fi
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if "${verify_all_rpms}"; then
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generate_rpm_info finish
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printf '%s\n' "${blue}You may review the following files:$nocolor"
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find /root/convert -type f -name "$(hostname)-rpms-*.log"
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fi
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printf '\n\n\n'
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cat /etc/issue | awk 'NR<=15'
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printf '%s\n' "$blue" "Done, please reboot your system.$nocolor"
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logmessage
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