By default, bootc install and install-to-filesystem assumes that it runs in a podman container, and it takes the container image to install from the podman's container registry. If --source-imgref is given, bootc uses it as the installation source, instead of the behaviour explained in the previous paragraph. See skopeo(1) for accepted formats.

--target-transport=TARGET_TRANSPORT [default: registry]

The transport; e.g. oci, oci-archive. Defaults to `registry`

--target-imgref=TARGET_IMGREF

Specify the image to fetch for subsequent updates

--enforce-container-sigpolicy

This is the inverse of the previous `--target-no-signature-verification` (which is now a no-op). Enabling this option enforces that `/etc/containers/policy.json` includes a default policy which requires signatures

--target-ostree-remote=TARGET_OSTREE_REMOTE

Enable verification via an ostree remote

--skip-fetch-check

By default, the accessiblity of the target image will be verified (just the manifest will be fetched). Specifying this option suppresses the check; use this when you know the issues it might find are addressed.

A common reason this may fail is when one is using an image which requires registry authentication, but not embedding the pull secret in the image so that updates can be fetched by the installed OS "day 2".

--disable-selinux

Disable SELinux in the target (installed) system.

This is currently necessary to install *from* a system with SELinux disabled but where the target does have SELinux enabled.

--karg=KARG

Add a kernel argument. This option can be provided multiple times.

Example: --karg=nosmt --karg=console=ttyS0,114800n8

--root-ssh-authorized-keys=ROOT_SSH_AUTHORIZED_KEYS

The path to an `authorized_keys` that will be injected into the `root` account.

The implementation of this uses systemd `tmpfiles.d`, writing to a file named `/etc/tmpfiles.d/bootc-root-ssh.conf`. This will have the effect that by default, the SSH credentials will be set if not present. The intention behind this is to allow mounting the whole `/root` home directory as a `tmpfs`, while still getting the SSH key replaced on boot.

--generic-image