sneaky dual-boot
sneaky dual-boot
Posted Apr 27, 2022 11:57 UTC (Wed) by plugwash (subscriber, #29694)In reply to: sneaky dual-boot by pabs
Parent article: Fedora considers deprecating legacy BIOS
Legacy HD-media
Legacy optical media
UEFI HD-media
UEFI CD
In principle it would be possible for an installed system to support both UEFI and Legacy. I do see a few issues though.
1. Operating systems using UEFI installed on fixed drives are supposed to register themselves with the firmware(which requires the installer to berunning in UEFImode) rather than relying on a fixed entry point on the drive. In practice it's possible to boot using the "removable media path" even on a fixed drive but it's not the official way to do things.
2. While the combination of BIOS boot and GPT is technically feasible it's notexactly standard, I'm not sure if grub supports it or if a hybrid partion table (which is it's own can of worms) is needed.
3. There is no gaurantee that what works in one mode will work in the other.
4. Multiboot becomes even more of a can of worms than usual.
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