forked from Mirror/pmbootstrap
87dd071b32
asus-me176c has a Fastboot interface that can be used for flashing,
but in postmarketOS we do not use Android boot images for it.
This is because is it not very practical - the boot partition is
quite small and there is a (custom) EFI bootloader that can boot
directly from any other FAT32 partition.
At the moment the installation process is manual:
1. pmbootstrap install --split to have separated boot (FAT32)
and rootfs images
2. pmbootstrap export
3. Flash boot and rootfs images manually using Fastboot
The "fastboot-bootpart" flasher implements that process in a more
convenient way. When a device uses the "fastboot-bootpart" flasher:
- We generate --split images on "pmbootstrap install" by default.
(This can be disabled using --no-split instead.)
- pmbootstrap flasher flash_kernel flashes the raw boot partition
(not an Android boot image) using Fastboot, just like the rootfs.
There are some limitations that could be improved in the future:
- "fastboot-bootpart" is not offered in the device wizard.
I think it is special enough that no-one will be starting with it,
and the difference to normal "fastboot" might be confusing.
- Support "pmbootstrap flasher boot". asus-me176c does not support
"fastboot boot" properly, but theoretically we could still generate
Android boot images to use when booting an image directly.
- At the moment the boot partition image is not regenerated when
using "pmbootstrap flasher flash_kernel" (unlike when using Android
boot images). "pmbootstrap install" needs to be run manually first.
55 lines
2.4 KiB
Python
55 lines
2.4 KiB
Python
"""
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Copyright 2020 Oliver Smith
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This file is part of pmbootstrap.
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pmbootstrap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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pmbootstrap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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def variables(args, flavor, method):
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_cmdline = args.deviceinfo["kernel_cmdline"]
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if "cmdline" in args and args.cmdline:
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_cmdline = args.cmdline
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if method.startswith("fastboot"):
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_partition_kernel = args.deviceinfo["flash_fastboot_partition_kernel"] or "boot"
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_partition_system = args.deviceinfo["flash_fastboot_partition_system"] or "system"
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else:
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_partition_kernel = args.deviceinfo["flash_heimdall_partition_kernel"] or "KERNEL"
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_partition_system = args.deviceinfo["flash_heimdall_partition_system"] or "SYSTEM"
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if "partition" in args and args.partition:
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# Only one of two operations is done at same time so it doesn't matter sharing the arg
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_partition_kernel = args.partition
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_partition_system = args.partition
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vars = {
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"$BOOT": "/mnt/rootfs_" + args.device + "/boot",
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"$FLAVOR": flavor if flavor is not None else "",
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"$IMAGE_SPLIT_BOOT": "/home/pmos/rootfs/" + args.device + "-boot.img",
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"$IMAGE_SPLIT_ROOT": "/home/pmos/rootfs/" + args.device + "-root.img",
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"$IMAGE": "/home/pmos/rootfs/" + args.device + ".img",
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"$KERNEL_CMDLINE": _cmdline,
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"$PARTITION_KERNEL": _partition_kernel,
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"$PARTITION_INITFS": args.deviceinfo["flash_heimdall_partition_initfs"] or "RECOVERY",
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"$PARTITION_SYSTEM": _partition_system,
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"$RECOVERY_ZIP": "/mnt/buildroot_" + args.deviceinfo["arch"] +
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"/var/lib/postmarketos-android-recovery-installer"
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"/pmos-" + args.device + ".zip",
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"$UUU_SCRIPT": "/mnt/rootfs_" + args.deviceinfo["codename"] +
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"/usr/share/uuu/flash_script.lst"
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}
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return vars
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