103 lines
2.5 KiB
ReStructuredText
103 lines
2.5 KiB
ReStructuredText
.. highlight:: sh
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Bootloader
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======================
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.. contents:: Table of Contents
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:local:
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#. If using virtio disk, add driver to initrd::
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echo 'filesystems+=" virtio_blk "' >> /etc/dracut.conf.d/fs.conf
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#. Create empty cache file and generate initrd::
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rm -f /etc/zfs/zpool.cache
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touch /etc/zfs/zpool.cache
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chmod a-w /etc/zfs/zpool.cache
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chattr +i /etc/zfs/zpool.cache
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for directory in /lib/modules/*; do
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kernel_version=$(basename $directory)
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dracut --force --kver $kernel_version
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done
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#. Load ZFS modules and disable BLS::
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echo 'GRUB_ENABLE_BLSCFG=false' >> /etc/default/grub
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#. Apply GRUB workaround::
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echo 'export ZPOOL_VDEV_NAME_PATH=YES' >> /etc/profile.d/zpool_vdev_name_path.sh
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source /etc/profile.d/zpool_vdev_name_path.sh
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# GRUB fails to detect rpool name, hard code as "rpool"
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sed -i "s|rpool=.*|rpool=rpool|" /etc/grub.d/10_linux
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This workaround needs to be applied for every GRUB update, as the
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update will overwrite the changes.
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#. Install GRUB::
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export ZPOOL_VDEV_NAME_PATH=YES
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mkdir -p /boot/efi/almalinux/grub-bootdir/i386-pc/
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mkdir -p /boot/efi/almalinux/grub-bootdir/x86_64-efi/
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for i in ${DISK}; do
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grub2-install --target=i386-pc --boot-directory \
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/boot/efi/almalinux/grub-bootdir/i386-pc/ $i
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done
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cp -r /usr/lib/grub/x86_64-efi/ /boot/efi/EFI/almalinux/
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#. Generate GRUB menu::
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grub2-mkconfig -o /boot/efi/EFI/almalinux/grub.cfg
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grub2-mkconfig -o /boot/efi/almalinux/grub-bootdir/i386-pc/grub2/grub.cfg
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#. For both legacy and EFI booting: mirror ESP content::
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ESP_MIRROR=$(mktemp -d)
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unalias -a
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cp -r /boot/efi/EFI $ESP_MIRROR
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for i in /boot/efis/*; do
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cp -r $ESP_MIRROR/EFI $i
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done
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rm -rf $ESP_MIRROR
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#. Notes for GRUB on RHEL
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As bls is disabled, you will need to regenerate GRUB menu after each kernel upgrade.
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Or else the new kernel will not be recognized and system will boot the old kernel
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on reboot.
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Finish Installation
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~~~~~~~~~~~~~~~~~~~~
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#. Exit chroot::
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exit
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#. Export pools::
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umount -Rl /mnt
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zpool export -a
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#. Reboot::
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reboot
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#. On first reboot, the boot process will fail, with failure messages such
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as "You are in Emergency Mode...Press Ctrl-D to continue".
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Wait for the computer to automatically reboot and the problem will be resolved.
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Post installaion
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~~~~~~~~~~~~~~~~
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#. Install package groups::
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dnf group list --hidden -v # query package groups
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dnf group install @gnome-desktop
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#. Add new user, configure swap.
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