Add script to wrap filesystem image in DDI #24
Conversation
|
I think we should use systemd-repart^^ |
|
The examples don't cover it because one would also need a third partition with |
|
i know you do :) i'll try that next |
|
I'm not against having this script available, too |
with a dm-verity hash-tree and signed root hash. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
This uses systemd-repart for image generation, but requires the unreleased v255 due to bugs and missing features in earlier versions. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
|
@pothos: i've added systemd-repart for verity DDI creation to bake.sh |
|
|
||
| ### Verity | ||
|
|
||
| To generate sysext protected by dm-verity with a signed root hash pass `FORMAT=verity` before invoking any of the scripts. This requires `systemd-repart` with a version >= v255. This also requires passing a path to a private key and certificate through `KEY` and `CERT`. |
There was a problem hiding this comment.
A sentence on how these can be loaded would be good.
| To generate sysext protected by dm-verity with a signed root hash pass `FORMAT=verity` before invoking any of the scripts. This requires `systemd-repart` with a version >= v255. This also requires passing a path to a private key and certificate through `KEY` and `CERT`. | |
| To generate sysext protected by dm-verity with a signed root hash pass `FORMAT=verity` before invoking any of the scripts. This requires `systemd-repart` with a version >= v255. This also requires passing a path to a private key and certificate through `KEY` and `CERT`. To load the image, add the certificate file to `/etc/verity.d/`. |
| mksquashfs "${SYSEXTNAME}" "${SYSEXTNAME}".raw -all-root | ||
| elif [ "${FORMAT}" = "verity" ]; then | ||
| systemd-repart --private-key="${KEY}" --certificate="${CERT}" --root="${SYSEXTNAME}" --no-pager --empty=create --size=auto --definitions=repart.d "${SYSEXTNAME}.raw" |
There was a problem hiding this comment.
This assumes to be running in the script's folder, we need to add a cd or use an absolute path for --definitions=
Thanks! |
|
From the NEWS entries for 255: |
with a dm-verity hash-tree and signed root hash.
This is an example for how to do things for sysexts that will be built into flatcar.