diff options
| author | Philip J Freeman <elektron@halo.nu> | 2025-05-31 12:34:14 -0700 |
|---|---|---|
| committer | Philip J Freeman <elektron@halo.nu> | 2025-05-31 15:47:31 -0700 |
| commit | 34105077c777b0d2c5c69f39921f376b84ce1443 (patch) | |
| tree | 606152d6f739a0ee7fd8e5127e79b595f3fe8c85 /hooks/build-os-post/20-ostree-kernel-mangle | |
| parent | 5392080129b1093f36533e47c155f618c283ea57 (diff) | |
Deploying a demo amd64 debian-based OS via ostree
This is a prototype outline for building and deploying a debian based OS
with ostree. For purposes of demonstration, the OS runs from a bootable
USB device on a UEFI capable amd64 machine. Once a USB device is
created and booted, the OS can be updated using a simple shell script.
<https://ostreedev.github.io/ostree/>
<https://www.nin.wiki/Halo_numbers>
Diffstat (limited to 'hooks/build-os-post/20-ostree-kernel-mangle')
| -rwxr-xr-x | hooks/build-os-post/20-ostree-kernel-mangle | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hooks/build-os-post/20-ostree-kernel-mangle b/hooks/build-os-post/20-ostree-kernel-mangle new file mode 100755 index 0000000..1e51905 --- /dev/null +++ b/hooks/build-os-post/20-ostree-kernel-mangle @@ -0,0 +1,22 @@ +#!/bin/bash -xe +set -o pipefail + +# Kernel mangling + +kver=$(ls -1 "${root:?}"/usr/lib/modules) + +# move kernel out of /boot into /usr/lib/modules/ +mv "${root:?}"/boot/vmlinuz-"$kver" "${root:?}"/usr/lib/modules/"$kver"/vmlinuz +mv "${root:?}"/boot/initrd.img-"$kver" "${root:?}"/usr/lib/modules/"$kver"/initramfs.img +mv "${root:?}"/boot/config-"$kver" "${root:?}"/usr/lib/modules/"$kver"/config +mv "${root:?}"/boot/System.map-"$kver" "${root:?}"/usr/lib/modules/"$kver"/System.map + +# remove kernel symlinks from root +rm "${root:?}"/vmlinuz* "${root:?}"/initrd.* + +khash=$(sha256sum "${root:?}"/usr/lib/modules/"$kver"/vmlinuz | awk '{print $1}') + +# add ostree style kernel links from /usr/lib/ostree-boot +mkdir -p "${root:?}"/usr/lib/ostree-boot +ln -s /usr/lib/modules/"$kver"/vmlinuz "${root:?}"/usr/lib/ostree-boot/vmlinuz-"$khash" +ln -s /usr/lib/modules/"$kver"/initramfs.img "${root:?}"/usr/lib/ostree-boot/initramfs-"$khash" |