8d6376e61e
Of note: upstream has made several improvements to memory management, and several fixes to file systems. User-friendly change to LUKS: if the passphrase input failed, the user is prompted again for the correct passphrase, instead of GRUB just failing. Similar to cryptsetup luksOpen behaviour under Linux. This pulls in the following changes from upstream (gnu.org): * b53ec06a1 util/grub-mkrescue: Check existence of option arguments * ab9fe8030 loader/efi/fdt: Add fdtdump command to access device tree * 0cfec355d osdep/devmapper/getroot: Unmark 2 strings for translation * f171122f0 loader/emu/linux: Fix determination of program name * 828717833 disk/cryptodisk: Fix translatable message * 9a2134a70 tests: Add test for ZFS zstd * f96df6fe9 fs/zfs/zfs: Add support for zstd compression * 55d35d628 kern/efi/mm: Detect calls to grub_efi_drop_alloc() with wrong page counts * 61f1d0a61 kern/efi/mm: Change grub_efi_allocate_pages_real() to call semantically correct free function * dc0a3a27d kern/efi/mm: Change grub_efi_mm_add_regions() to keep track of map allocation size * b990df0be tests/util/grub-fs-tester: Fix EROFS label tests in grub-fs-tester * d41c64811 tests: Switch to requiring exfatprogs from exfat-utils * c1ee4da6a tests/util/grub-shell-luks-tester: Fix detached header test getting wrong header path * c22e052fe tests/util/grub-shell: Add flexibility in QEMU firmware handling * d2fc9dfcd tests/util/grub-shell: Use pflash instead of -bios to load UEFI firmware * 88a7e64c2 tests/util/grub-shell: Print gdbinfo if on EFI platform * b8d29f114 configure: Add Debian/Ubuntu DejaVu font path * 13b315c0a term/ns8250-spcr: Add one more 16550 debug type * 8abec8e15 loader/i386/multiboot_mbi: Fix handling of errors in broken aout-kludge * d35ff2251 net/drivers/ieee1275/ofnet: Remove 200 ms timeout in get_card_packet() to reduce input latency * 86df79275 commands/efi/tpm: Re-enable measurements on confidential computing platforms * 0b4d01794 util/grub-mkpasswd-pbkdf2: Simplify the main function implementation * fa36f6376 kern/ieee1275/init: Add IEEE 1275 Radix support for KVM on Power * c464f1ec3 fs/zfs/zfs: Mark vdev_zaps_v2 and head_errlog as supported * 2ffc14ba9 types: Add missing casts in compile-time byteswaps * c6ac49120 font: Add Fedora-specific font paths * 5e8989e4e fs/bfs: Fix improper grub_free() on non-existing files * c806e4dc8 io/gzio: Properly init a table * 243682baa io/gzio: Abort early when get_byte() reads nothing * bb65d81fe cli_lock: Add build option to block command line interface * 56e58828c fs/erofs: Add tests for EROFS in grub-fs-tester * 9d603061a fs/erofs: Add support for the EROFS * 1ba39de62 safemath: Add ALIGN_UP_OVF() which checks for an overflow * d291449ba docs: Fix spelling mistakes * 6cc2e4481 util/grub.d/00_header.in: Quote background image pathname in output * f456add5f disk/lvm: GRUB fails to detect LVM volumes due to an incorrect computation of mda_end * 386b59ddb disk/cryptodisk: Allow user to retry failed passphrase * 99b4c0c38 disk/mdraid1x_linux: Prevent infinite recursion * b272ed230 efi: Fix stack protector issues * 6744840b1 build: Track explicit module dependencies in Makefile.core.def Signed-off-by: Leah Rowe <leah@libreboot.org> |
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README.md
Canoeboot
Find canoeboot documentation at https://canoeboot.org/
The canoeboot project provides
libre boot
firmware that initializes the hardware (e.g. memory controller, CPU,
peripherals) on specific Intel/AMD x86 and ARM targets, which
then starts a bootloader for your operating system. Linux/BSD are
well-supported. It replaces proprietary BIOS/UEFI firmware. Help is available
via #canoeboot IRC
on Libera IRC.
Canoeboot is maintained in parallel with Libreboot, by the same developer. Strictly speaking, it is a fork of Libreboot, but with a twist:
Canoeboot is provided for the purists who absolutely wish to have no proprietary software of any kind. Regardless of any other firmware that exists outside of it, the boot flash on your system will be entirely free software if you install Canoeboot on it. That includes a complete lack of CPU microcode updates, as per FSF policy.
More specifically: Canoeboot is engineered to comply with the GNU Free System Distribution Guidelines. It has, as of November 2023 releases, been strictly audited by FSF licensing staff (Craig Topham lead the audit), and it is listed on the FSF's own Free Software Directory.
Libreboot previously complied with that same policy, but changed to a different one permitting binary blobs in limited circumstances, so as to support more newer machines. Canoeboot is, then, a continuation of the traditional Libreboot project prior to that policy change. Some users still want it, so, Canoeboot releases are rigoriously maintained, re-basing on newer Libreboot releases over time, just like how, say, Trisquel, re-bases itself on each new Ubuntu release.
Project goals
- Obviously, support as much hardware as possible (within the limitations imposed by GNU FSDG, and using what coreboot happens to have in its source tree - Canoeboot also heavily patches coreboot, sometimes adding new mainboards out-of-tree).
- Make coreboot easy to use. Coreboot is notoriously difficult to install, due to an overall lack of user-focused documentation and support. Most people will simply give up before attempting to install coreboot. Canoeboot's automated build system and user-friendly installation instructions solves this problem.
Canoeboot attempts to bridge this divide by providing a build system automating much of the coreboot image creation and customization. Secondly, the project produces documentation aimed at non-technical users. Thirdly, the project attempts to provide excellent user support via IRC.
Canoeboot already comes with a payload (GRUB), flashprog and other needed parts. Everything is fully integrated, in a way where most of the complicated steps that are otherwise required, are instead done for the user in advance.
You can download ROM images for your canoeboot system and install them without having to build anything from source. If, however, you are interested in building your own image, the build system makes it relatively easy to do so.
Not a coreboot fork!
Canoeboot is not a fork of coreboot. Every so often, the project re-bases on the latest version of coreboot, by virtue of maintaining sync with Libreboot releases (minus un-GNU parts), with the number of custom patches in use minimized. Tested, stable (static) releases are then provided in Canoeboot, based on specific coreboot revisions.
LICENSE FOR THIS README
It's just a README file. This README file is released under the terms of the Creative Commons Zero license, version 1.0 of the license, which you can read here:
https://creativecommons.org/publicdomain/zero/1.0/legalcode.txt
The documentation in Canoeboot will use a mix of other licenses, so you should check that for more information.