From: Stefan <stefan-guix@vodafonemail.de>
To: "Danny Milosavljevic" <dannym@scratchpost.org>,
"Ludovic Courtès" <ludo@gnu.org>,
41066@debbugs.gnu.org
Subject: [bug#41066] [PATCH] gnu: bootloader: Support for chain loading.
Date: Sun, 25 Oct 2020 17:58:07 +0100 [thread overview]
Message-ID: <4FACB9F5-2A1E-45B5-A53F-42F0E098CEAA@vodafonemail.de> (raw)
In-Reply-To: <20201025023345.73d515d2@scratchpost.org>
Hi Danny and Ludo!
I tried to consider your comments and modified the code as far as I could grasp the suggestions. Thanks!
Now the API looks like this:
(bootloader-chain
(list (file-append firmware "/boot/")
(file-append u-boot-my-scb "/libexec/u-boot.bin")
(plain-file "config.txt"
"kernel=u-boot.bin"))
grub-efi-netboot-bootloader
#:hook my-special-bootloader-profile-manipulator
#:installer (install-grub-efi-netboot "efi/boot"))
The suggestion to use file-append simplified a lot, also for the implementation of the bootloader-collection profile hook. I also added an optional hook function to do customised manipulations of the profile before invoking the installer.
Regarding this kind of chain-loading: The ARM world seems to consolidate onto an UEFI firmware, supporting either device-trees or ACPI. There are two main options for an UEFI firmware to chose from: TianoCore/EDK II and U-Boot.
Some platforms come with an EEPROM or NAND storage to install e.g. U-Boot with embedded device-tree information as an UEFI firmware. From a distribution’s point of view this can make using GRUB-EFI the default choice. And it becomes arguable if the distribution is responsible to install/update this firmware, if you compare to a BIOS.
Other platforms just boot from some FAT partition requiring some blobs and don’t offer an UEFI firmware. But copying e.g. U-Boot and some more files onto this FAT partition makes them appear like a system with an UEFI firmware, giving a kind of compatibility to the future.
Bye
Stefan
next prev parent reply other threads:[~2020-10-25 17:00 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-03 23:34 [bug#41066] [PATCH] gnu: grub: Support for chain loading Stefan
2020-05-24 11:13 ` Danny Milosavljevic
2020-05-24 13:21 ` Stefan
2020-10-04 16:31 ` [bug#41066] [PATCH] gnu: bootloader: " Stefan
2020-10-10 9:31 ` Stefan
2020-10-18 11:20 ` Stefan
2020-10-18 11:21 ` Stefan
2020-10-22 17:46 ` Danny Milosavljevic
2020-10-23 12:48 ` Ludovic Courtès
2020-10-24 1:30 ` Danny Milosavljevic
2020-10-24 16:22 ` Ludovic Courtès
2020-10-25 0:33 ` Danny Milosavljevic
2020-10-25 16:58 ` Stefan [this message]
2020-10-25 16:59 ` Stefan
2020-11-02 15:42 ` Danny Milosavljevic
2020-11-02 16:21 ` Mathieu Othacehe
2020-11-03 9:07 ` Ludovic Courtès
2020-11-03 9:32 ` Mathieu Othacehe
2020-11-07 21:14 ` Stefan
2020-11-07 21:15 ` Stefan
2020-10-26 10:37 ` Ludovic Courtès
2020-11-16 9:33 ` bug#41066: " Danny Milosavljevic
2020-11-17 14:26 ` [bug#41066] " Stefan
2020-11-17 15:47 ` Danny Milosavljevic
2020-11-17 16:17 ` Danny Milosavljevic
2020-11-17 20:27 ` Stefan
2020-11-18 18:05 ` Danny Milosavljevic
2020-11-18 18:20 ` Stefan
2020-11-28 22:14 ` [bug#41066] [PATCH] gnu: bootloader: Improve support " Stefan
2020-12-12 17:14 ` Stefan
2020-12-13 14:42 ` Danny Milosavljevic
2020-12-13 17:24 ` Stefan
2020-12-13 19:28 ` Stefan
2020-12-28 19:02 ` Stefan
2021-03-27 16:48 ` bug#41066: " Stefan
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