UEFI support/uefi-rs crate implementation #1172
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Hey. I am planning to run the OS on my UEFI laptop so I was wondering how can I add support for UEFI. As I understood, in the released version of the blog_os the whole kernel work only on BIOS. Although, I saw the uefi-rs crate on the monthly update and the name of uefi-rs crate appears from time to time in the blog_os "ecosystem", I didn’t found any specific posts about this crate implementation. Can somebody explain to me how can I implement this crate to my fork of the blog_os? P.S. Thanks for your blog, I really appreciate what u guys are doing |
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Replies: 1 comment 5 replies
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A third edition is in the works which uses a new version of bootloader that supports both bios and uefi. Note that the bootloader crate calls ExitBootServices before passing control to the OS, so you won't be able to interact with UEFI from the OS, but it does allow booting using UEFI. |
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You can find the documentation at https://docs.rs/bootloader/latest/bootloader/
Most UEFI systems come with support for booting BIOS OSes. If not you could use something like SeaBIOS which emulate a BIOS. I think https://www.seabios.org/downloads/bios.bin.elf-1.16.0.gz is the right file for starting SeaBIOS using UEFI. |
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Got it. Is that correct that in order to boot the OS from BIOS/UEFI I should place the kernel image located at |
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I believe you have to write it as raw image to the USB using for example dd (unix) or etcher (windows) not just place it as a file. |
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Okay, thanks |
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A third edition is in the works which uses a new version of bootloader that supports both bios and uefi. Note that the bootloader crate calls ExitBootServices before passing control to the OS, so you won't be able to interact with UEFI from the OS, but it does allow booting using UEFI.