Constants and IDs
This document contains well-known constants and IDs used by Flatcar Container Linux.
Omaha application ID
This UUID is used to identify Container Linux to the update service, i.e. as an appid over the
Omaha protocol
.
| Label | Value | Notes |
|---|---|---|
| Container Linux | e96281a6-d1af-4bde-9a0a-97b76e56dc57 |
- |
GPT partition types
These GUIDs are dedicated GPT partition types for specific Container Linux usages.
| Label | Value | Notes |
|---|---|---|
coreos-usr |
5dfbf5f4-2848-4bac-aa5e-0d9a20b745a6 |
Alias for historical coreos-rootfs, currently used for /usr only |
coreos-resize |
3884dd41-8582-4404-b9a8-e9b84f2df50e |
Support for auto-resizing via extend-filesystems, current default type for / |
coreos-reserved |
c95dc21a-df0e-4340-8d7b-26cbfa9a03e0 |
Reserved for OEM usage, support for customizations via OEM-CONFIG partition |
coreos-root-raid |
be9067b9-ea49-4f15-b4f6-f36f8c9e1818 |
RAID partition containing a rootfs, see notes for details and limitations |
For more information on the partitioning scheme used by Flatcar Container Linux, read the disk layout documentation.