63 lines
2.3 KiB
Markdown
63 lines
2.3 KiB
Markdown
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# Building a Mobian Image for the Pixel 3a
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## Prerequisites
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Cloning the repositories
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Kernel: https://salsa.debian.org/erebion/sdm-670-linux
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Mobian Recipes does not have the changes merged, as the kernel is not yet part of Mobian: https://salsa.debian.org/Mobian-team/mobian-recipes/-/merge_requests/113
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Take my temporary fork of Mobian Recipes instead, for now: https://salsa.debian.org/erebion/mobian-recipes/-/tree/erebion/sargo-build?ref_type=heads
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The fork will be maintained until there are official Mobian images for the Pixel 3a.
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## Compiling the Kernel
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First `cd` to the kernel repo.
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Then:
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```bash
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gbp pq import # import the patches to a patch-queue branch with the patches applied
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ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make defconfig sdm845.config sdm670.config usb-gadget.config # make kernel config, usb-gadget ist required for SSH via USB Cable
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ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make -j$(nproc) bindeb-pkg # make Kernel deb (one directory level up)
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```
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## Building the Image
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First `cd` to the Mobian repo.
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Copy the kernel deb to `devices/qcom/packages`, so that it gets installed onta the image we are about to build.
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Temporary workarounds:
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- Comment `loupe` in `include/packages-phosh.yaml` as that is currently not available in the repo. The image viewer can be installed later.
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- Comment `mobian-phosh` because of a broken dependency and insert `phosh-core`, the metapackage just installs things like an XMPP client and nothing important we couldn't install later.
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- Add your SSH authorized keys file to `overlays/ssh/authorized_keys`, important so you can log in later
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```bash
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./build.sh -t qcom -s -u mobian | tee mobian-build.log # -s for SSH, which we need later
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```
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(If you replace `mobian` with your own username, you will have to use that one for SSH later, of course)
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Wait. It takes a while. Make sure the internet connection is stable, as the build fails if it cannot download all packages successfully.
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Note: Your SSH Host Keys currently get generated while building the image, please don't give your image to anyone else.
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## Flash to device:
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```
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fastboot --set-active --slot a
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fastboot flash boot_a mobian-qcom-phosh-20240614.boot-bonito-sdc.img
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fastboot flash userdata mobian-qcom-phosh-20240614.rootfs.img
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fastboot erase dtbo
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```
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Boot up the device. Connect it via USB.
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## Temporary manual changes
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Documented in README.md in this repo.
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