ramips: mt7621: mikrotik: initram use lzma loader#8
Draft
Conversation
Use OpenWrt's lzma loader for initramfs image Due to mips kernel self extractor inability to relocate, and RouterBoot on 760igs refusing to netboot an ELF with: Entry point address: 0x80b91000 or greater: 0x80b81000 and below okay. Note that this is only a bootloader ELF entry point limitation, a 50MiB Linux + initramfs vmlinux will boot fine on 760igs. With this lzma loader, netboot will occasionally freeze after decompressing the kernel, but before starting vmlinux. It was considered that an occasional netboot freeze was simpler to workaround than an image that refuses to boot unless minimized. Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Use OpenWrt's lzma loader for initramfs image
Due to mips kernel self extractor inability to relocate, and RouterBoot on 760igs refusing to netboot an ELF with:
Entry point address: 0x80b91000
or greater: 0x80b81000 and below okay.
Note that this is only a bootloader ELF entry point limitation, a 50MiB Linux + initramfs vmlinux will boot fine on 760igs.
With this lzma loader, netboot will occasionally freeze after decompressing the kernel, but before starting vmlinux. It was considered that an occasional netboot freeze was simpler to workaround than an image that refuses to boot unless minimized.