Add secondary-image to meta-updater

This required splitting the aktualizr package into several components, in order
to be able to either install the primary 'aktualzr' or the secondary
'aktualizr-secondary'.

1 files changed, 2 insertions, 2 deletions

diff --git a/README.adoc b/README.adoc
index 3562f52..980fa81 100644
--- a/README.adoc
+++ b/README.adoc
@@ -80,8 +80,8 @@ Although we have used U-Boot so far, other boot loaders can be configured work w
 * `OSTREE_INITRAMFS_IMAGE` - initramfs/initrd image that is used as a proxy while booting into OSTree deployment. Do not change this setting unless you are sure that your initramfs can serve as such a proxy.
 * `SOTA_PACKED_CREDENTIALS` - when set, your ostree commit will be pushed to a remote repo as a bitbake step. This should be the path to a zipped credentials file in https://github.com/advancedtelematic/aktualizr/blob/master/docs/credentials.adoc[the format accepted by garage-push].
 * `SOTA_CLIENT_PROV` - which provisioning method to use. Valid options are https://github.com/advancedtelematic/aktualizr/blob/master/docs/automatic-provisioning.adoc[`aktualizr-auto-prov`], https://github.com/advancedtelematic/aktualizr/blob/master/docs/implicit-provisioning.adoc[`aktualizr-implicit-prov`], and `aktualizr-hsm-prov`. The default is `aktualizr-auto-prov`. This can also be set to an empty string to avoid using a provisioning recipe.
-* `SOTA_CLIENT_FEATURES` - extensions to aktualizr. Multiple can be specified if separated by spaces. Valid options are `hsm` (to build with HSM support) and `secondary-example` (to install an example https://github.com/advancedtelematic/aktualizr/blob/master/docs/legacysecondary.adoc[legacy secondary interface] in the image).
-* `SOTA_LEGACY_SECONDARY_INTERFACE` - path to a legacy secondary interface installed on the device. To use the example interface from the Aktualizr repo, use `/usr/bin/example-interface` and make sure `SOTA_CLIENT_FEATURES = "secondary-example"`.
+* `SOTA_CLIENT_FEATURES` - extensions to aktualizr. The only valid option is `hsm` (to build with HSM support)
+* `SOTA_LEGACY_SECONDARY_INTERFACE` - path to a https://github.com/advancedtelematic/aktualizr/blob/master/docs/legacysecondary.adoc[legacy secondary interface] installed on the device. To use the example interface from the Aktualizr repo, use `/usr/bin/example-interface` and make sure `IMAGE_INSTALL_append` includes `aktualizr-examples`.
 * `SOTA_SECONDARY_ECUS` - a list of paths separated by spaces of JSON configuration files for virtual secondaries on the host. These will be installed into `/var/sota/ecus` on the device.
 * `SOTA_VIRTUAL_SECONDARIES` - a list of paths separated by spaces of JSON configuration files for virtual secondaries installed on the device. If `SOTA_SECONDARY_ECUS` is used to install them, then you can expect them to be installed in `/var/sota/ecus`.