ついに、RockyLinux がGAとなったので、VMware環境で移行を試してみた。
移行手順
以下に移行スクリプトがある。
GitHub - rocky-linux/rocky-tools
移行スクリプトを入手
# wget https://raw.githubusercontent.com/rocky-linux/rocky-tools/main/migrate2rocky/migrate2rocky.sh
実行権を与えて実行
# chmod +x migrate2rocky.sh # bash migrate2rocky.sh -r EFI Secure Boot is enabled but Rocky Linux doesn't provide a signed shim yet. Disable EFI Secure Boot and reboot. 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. A log of this installation can be found at /var/log/migrate2rocky.log
エラーが出た。
意訳すると、「EFIセキュアブートが有効になっているが、Rocky Linuxはまだsigned shimを提供していないので無効化して」とのこと。
表示されているが、/var/log/migrate2rocky.log には、上記と同じメッセージが記録されている。
なお、-r オプションを忘れると、上記のEFIの問題とは関係なく、Usageが表示される。
# bash migrate2rocky.sh Usage: migrate2rocky.sh [OPTIONS] Options: -h Display this help -r Convert to rocky -V Verify switch !! USE WITH CAUTION !!
仮想マシンを停止してから、
仮想マシン→設定の編集→仮想マシンオプション→起動オプション にて、「セキュアブート」を有効→無効へ変更する。（画像の真ん中あたりのチェックを外す）
なお、ここで勢い余ってEFI（推奨）→BIOS へ変更すると、
「ファームウェアを変更すると、インストールされているゲスト OS を
起動できなくなる場合があります。」
とVMwareで警告されるが、そのまま続行するとOSが起動しなくなるので注意。
（EFIに戻せば、起動するように戻った）
セキュアブートを無効化した後、仮想マシンを起動して、再び移行スクリプトを実行。
# bash migrate2rocky.sh -r Preparing to migrate CentOS Linux 8 to Rocky Linux 8. Determining repository names for CentOS Linux 8.Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Found the following repositories which map from CentOS Linux 8 to Rocky Linux 8: CentOS Linux 8 Rocky Linux 8 appstream appstream baseos baseos extras extras Getting system package names for CentOS Linux 8Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 .Failed to set locale, defaulting to C.UTF-8 Found the following system packages which map from CentOS Linux 8 to Rocky Linux 8: CentOS Linux 8 Rocky Linux 8 centos-backgrounds rocky-backgrounds centos-gpg-keys rocky-gpg-keys centos-logos rocky-logos centos-indexhtml rocky-indexhtml centos-linux-release rocky-release centos-logos-httpd rocky-logos-httpd centos-linux-repos rocky-repos Getting list of installed system packages. We will replace the following CentOS Linux 8 packages with their Rocky Linux 8 equivalents Packages to be Removed Packages to be Installed centos-gpg-keys rocky-gpg-keys centos-linux-release rocky-release centos-linux-repos rocky-repos Getting a list of enabled modules for the system repositories. In addition to the above the following system packages will be removed: centos-linux-release centos-linux-release Failed to set locale, defaulting to C.UTF-8 Excluding modules: libselinux-python:2.8 Found the following modules to re-enable at completion: Running dnf update before we attempt the migration. Last metadata expiration check: 1:53:41 ago on Fri Jul 2 08:23:50 2021. Dependencies resolved. Nothing to do. Complete! Failed to set locale, defaulting to C.UTF-8 Added rockyappstream repo from https://dl.rockylinux.org/pub/rocky/8/AppStream/x86_64/os/ Added rockybaseos repo from https://dl.rockylinux.org/pub/rocky/8/BaseOS/x86_64/os/ rockyappstream 4.2 MB/s | 7.1 MB 00:01 rockybaseos 3.8 MB/s | 2.5 MB 00:00 Failed to set locale, defaulting to C.UTF-8 > > > ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: rocky-gpg-keys noarch 8.4-26.el8 rockybaseos 11 k rocky-release noarch 8.4-26.el8 rockybaseos 19 k rocky-repos noarch 8.4-26.el8 rockybaseos 12 k Removing: centos-gpg-keys noarch 1:8-2.el8 @anaconda 3.3 k centos-linux-release noarch 8.4-1.2105.el8 @baseos 25 k centos-linux-repos noarch 8-2.el8 @anaconda 26 k Transaction Summary ================================================================================ Install 3 Packages Remove 3 Packages Total download size: 43 k Downloading Packages: (1/3): rocky-gpg-keys-8.4-26.el8.noarch.rpm 163 kB/s | 11 kB 00:00 (2/3): rocky-release-8.4-26.el8.noarch.rpm 242 kB/s | 19 kB 00:00 (3/3): rocky-repos-8.4-26.el8.noarch.rpm 149 kB/s | 12 kB 00:00 -------------------------------------------------------------------------------- Total 491 kB/s | 43 kB 00:00 warning: /var/cache/dnf/rockybaseos-56e41edc159a87c2/packages/rocky-gpg-keys-8.4-26.el8.noarch.rpm: Header V4 RSA/SHA256 Signature, key ID 6d745a60: NOKEY rockybaseos 1.6 MB/s | 1.6 kB 00:00 Importing GPG key 0x6D745A60: Userid : "Release Engineering <infrastructure@rockylinux.org>" Fingerprint: 7051 C470 A929 F454 CEBE 37B7 15AF 5DAC 6D74 5A60 From : /tmp/tmp.PoBnAwBzcP/gpg/RPM-GPG-KEY-rockyofficial Key imported successfully Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction Preparing : 1/1 Running scriptlet: rocky-gpg-keys-8.4-26.el8.noarch 1/1 Installing : rocky-gpg-keys-8.4-26.el8.noarch 1/6 ・・・省略 Complete! Failed to set locale, defaulting to C.UTF-8 Generating grub configuration file ... Adding boot menu entry for EFI firmware configuration done BootCurrent: 0003 BootOrder: 0004,0003,0000,0001,0002 Boot0000* EFI Virtual disk (0.0) Boot0001* EFI VMware Virtual SATA CDROM Drive (0.0) Boot0002* EFI Network Boot0003* CentOS Linux Boot0004* Rocky Linux Done, please reboot your system. A log of this installation can be found at /var/log/migrate2rocky.log
ログは、/var/log/migrate2rocky.log に保存される。
OSを再起動する
# reboot
OS起動時のカーネル選択画面にて、Rocky Linuxのものが選択されているか確認する。
見逃した場合、以下で確認
# grubby --info DEFAULT | grep title title="Rocky Linux (4.18.0-305.3.1.el8_4.x86_64) 8.4 (Green Obsidian)"
OS情報のファイルが、AlmaLinuxに変わっているか確認
# cat /etc/redhat-release Rocky Linux release 8.4 (Green Obsidian)
# ls /etc/yum.repos.d/
Rocky-AppStream.repo Rocky-Devel.repo Rocky-HighAvailability.repo
Rocky-Plus.repo Rocky-RT.repo Rocky-Sources.repo
Rocky-BaseOS.repo Rocky-Extras.repo Rocky-Media.repo
Rocky-PowerTools.repo Rocky-ResilientStorage.repo
CentOS→AlmaLinuxへの移行に関する記事はコチラ
shobon.hatenablog.com
