The goal of this document is to have a single source of information which scenarios are supported by yast2-bootloader.
- only for UEFI boot
- only with GPT (see bug)
- software RAID
- /boot cannot be on RAID unless it is RAID1
- cannot have stage1 on MD RAID1, so when /boot is on RAID1, then boot from MBR have to be used
- Device mapper
- local hard disk (including USB/ieee1394)
- local (hardware) RAID array of any type
- BIOS-RAID (handled via DM-RAID or MD RAID)
- iSCSI server with persistent IP address / disk identification
- NFSv3,v4 share on server with fixed IP address
- ppc64(le and be)
- only GRUB2
- there must be at least one PReP partition which size must not exceed 8MB (see fate)
- there's no requirement on the partition number
- good PReP disk layout overview PowerLinux Boot howto
- boot code implemented in SLOF - Slimline Open Firmware - used e.g. by qemu
- full reference (quite ancient) CHRP
- /boot/zipl must be on ext fs ( unless upgraded from working zipl configuration )
- only GRUB2
- MBR of disk where is /boot
- MBR of identical disks in MD RAID if it contains /boot fate
- extended partition
- /boot has to be on a logical partition
As we've previously mentioned, we have 3 options for bootloaders: grub2, grub2-efi, and none. The bootloader option, the system configuration, and its architecture will define the required packages. Besides that, the system will always require the package kexec-tools unless the installation is happening through a live medium.
This is the most common option and requires grub2. There is also special cases that may require additional packages:
- Generic mbr binary files will require the package syslinux.
- If using trusted boot option, systems with x86_64 and i386 architectures will require the packages trustedgrub2 and trustedgrub2-i386-pc.
This option requires packages based on the architecture of the system:
- i386 architecture requires: grub2-i386-efi.
- x86_64 architecture requires: grub2-x86_64-efi. If secure boot is used, it also requires shim and mokutil.
- arm architecture requires: grub2-arm-efi.
- aarch64 architecture requires: grub2-arm64-efi.
This option has no additional package requirement.