Leah Rowe
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canoeboot20241207.md
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canoeboot20241102.md
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audit2.md
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canoeboot20240612.md
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% Canoeboot 20241207 released!
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% Leah Rowe in GNU Leah Mode™
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% 7 December 2024
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This release, Canoeboot 20241207, is based on and in sync with the recent
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stable release of Libreboot, namely Libreboot 20241206. Therefore, this can
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be considered a stable release of Canoeboot.
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Introduction
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============
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Canoeboot is a free/libre BIOS/UEFI replacement on x86 and ARM, providing
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boot firmware that initialises the hardware in your computer, to then load an
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operating system (e.g. GNU+Linux). It is specifically a *coreboot distribution*,
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like how Trisquel is a GNU+Linux distribution. It provides an automated
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build system to produce coreboot ROM images with a variety of payloads such as
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GNU GRUB or SeaBIOS, with regular well-tested releases to make coreboot as easy
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to use as possible for non-technical users. From a project management perspective,
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this works in *exactly* the same way as a Linux distro, providing a source-based
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package manager (called cbmk) which patches sources and compiles coreboot images.
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It makes use of [coreboot](https://www.coreboot.org/) for hardware initialisation,
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and then a payload such as [SeaBIOS](https://www.seabios.org/SeaBIOS)
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or [GNU GRUB](https://www.gnu.org/software/grub/) to boot your operating
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system; on ARM(chromebooks), we provide *U-Boot* (as a coreboot payload).
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For Canoeboot 20241207, today's release, U-Boot is *also* provided as an
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optional coreboot payload on x86 machines. This provides a sensible UEFI
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implementation, useful for booting GNU+Linux and BSD systems more easily. More
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information available on the [U-Boot x86 page](../docs/uboot/uboot-x86.md).
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Since this is based on a stable release, not much has changed; the focus has
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been on bug fixes. However, the U-Boot x86 payload is a notable new feature.
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Summarised list of changes
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==========================
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Changes are in order per category, from newest to oldest:
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Feature changes
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---------------
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* U-Boot support, for both x86 and x86\_64, provided as a coreboot payload.
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This complements the existing ARM64 U-Boot support present in Canoeboot.
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Several changes have been made, for example Canoeboot has added an auto-boot
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timeout for the first selected entry on the bootflow menu (upstream does
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not currently support this feature, at the time of this Canoeboot release).
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Configuration changes
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---------------------
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* Enabled the serial console by default, on these machines: Thinkpad X60, T60.
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* U-Boot x86 enabled on almost every x86 board, chainloaded from SeaBIOS.
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The `seauboot` images boot directly into U-Boot first, from SeaBIOS, but
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U-Boot can be bypassed by using the ESC menu in SeaBIOS.
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Bug fixes
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---------
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* `script/trees`: reset `PATH` per target, to avoid it being wrong in the next
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target, because we manipulate this when enabling cross compilation (by using
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the coreboot cross compiler).
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* Disabled using Microcode updates in U-Boot builds on x86, because we remove
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the microcode from U-Boot so enabling it would yield a build error.
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* `rom.sh`: Removed unnecessary shebang; this is not a main script, but only
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meant to be included from other scripts.
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* Added `openssl-devel-engine` to Fedora dependencies
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* Unset `displaymode` on normal `initmode` in the `rom.sh` script, otherwise
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images that use `normal` mode would have `normal_normal` in the image name;
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now it just has `normal` in the image name.
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* U-Boot: merged an x86 bug fix from Simon Glass, well, two fixes: one silently
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disables the serial console if a serial device is not present, to prevent a
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hanging bug, and a second fix avoids clearing the display when initialising
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with VESA, because VESA ROMs already do this (we do not currently use VESA
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setups in Canoeboot, so this is a preventative bugfix).
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* `script/trees`: unset `CROSS_COMPILE` per target, before setting it per
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target, so that the next target does not use the same configuration as the
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previous target, in cases where the next target does not enable a cross
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compiler. This was necessary to prevent build errors with the x86 U-Boot
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payload.
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* Added `arm-none-eabi-gcc-cs-c++` to Fedora dependencies.
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Revision updates
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================
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* Updated U-Boot to v2024.10, on both ARM64 and x86 boards.
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* Bumped coreboot/next to the latest coreboot revision, from several days
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prior to this Canoeboot release. This is currently used for the Dell
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OptiPlex 780 ports.
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Git log
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=======
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This git log covers all changes in this audit, relative to Canoeboot 20240612.
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```
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* 4088cc12eb remove the purple patch on arm64 u-boot
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* 4a50e5a3e9 u-boot: Use bootflow menu by default for ARM64 boards
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* 81a29cef73 i made u-boot turquoise
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* 421e73c04c Add bootflow/branding patches to arm64 U-Boot too
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* 773cd8b384 Add canoeboot branding/version to U-Boot bootflow
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* ce27bb0ea0 Add auto-boot timeout for U-Boot's bootflow menu
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* 2ccc9215d8 8-sec auto-boot timeout for U-Boot's bootflow menu
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* ea9e4765f4 add /dump/ to .gitignore
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* 2d40305a35 u-boot: Enable USB with a preboot command
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* 0cea72c1cc u-boot: Update ARM64 boards to v2024.10
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* 6069668153 trees: reset PATH per-target
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* f6a2af67d5 Disable including Microcode in U-Boot builds
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* 106904ed81 rom.sh: Add U-Boot before SeaBIOS and GRUB (x86)
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* 19bc40962a rom.sh: Remove unnecessary shebang
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* 9a22d10e47 config/deps/fedora41: Add openssl-devel-engine to dependency list
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* 38dd860431 rom.sh: unset displaymode on normal initmode
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* b179ef63ed rom.sh: Don't build U-Boot on normal initmode
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* c885a63dd5 rom.sh: Don't build txtmode U-Boot images
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* dea09b8bf5 rom.sh: Support SeaUBoot for 64-bit x86 U-Boot
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* eea06c9659 U-Boot x86: Avoid clearing the VESA display
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* 5dd6a4e978 enable the serial console on thinkpad x60
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* 112b761926 enable the serial console on thinkpad t60
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* 8ba8cf3e60 Only boot 32-bit u-boot from grub, 64 from seabios
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* 6ff2a65a7c make the u-boot grub menuentry more useful
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* 0a90386ddb Re-enable U-Boot x86 on real mainboards
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* f3d68fade3 u-boot x86 serial/ns16550: disable UART as needed
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* 8333930599 Disable U-Boot x86 except on Qemu
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* d6cf658624 fix U-Boot hotkey mention in grub.cfg
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* 5e27c14b05 Update x86 U-Boot to v2024.10 (was v2024.07)
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* 186e3c0a23 grub.cfg: mark U-Boot as experimental in the menu
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* 414ff6095c trees: unset CROSS_COMPILE per target
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* 739207021d Enable x86 U-Boot payload on every x86 board
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* ac5c87681f Add U-Boot x86_64 payload
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* a70a9813d7 add arm-none-eabi-gcc-cs-c++ to fedora dependency
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* 5a641b071d Bump coreboot/next in line with lbmk
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* 2d2cdd2368 data/coreboot: add missing variable
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* 966fc8c23f Experimental U-Boot payload (32-bit dtb, U-Boot)
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```
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This is 37 changes since Canoeboot 20231102.
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