## Addresses #22702, #23713, #23756, #23746, #23747, and #23876
_-Note that much of this code as is will render as expected only once
integrated with the backend or if manipulated manually for testing
purposes_
**Frontend**:
- Update banners on my device page, tests
- Build new logic for calling endpoint to trigger linux key escrow on
clicking `Create key`
- Add `CreateLinuxKeyModal` to inform user of next steps after clicking
`Create key`
- Update banners on host details page, tests
- Update the Controls > OS settings section with new logic related to
linux disk encryption
- Expect and include counts of Linux hosts in aggregate disk encryption
stats UI
- Add "Linux" column to the disk encryption table
- Show disk encryption related UI for supported Linux platforms
- TODO: confirm platform string matching functionality in manual e2e
testing
- Expand capabilities of `SectionHeader` component, apply to new UI
- Flash "missing private key" error, with clickable link, when trying to
update disk encryption enabled while no server private key is present.
- TODO: QA this once other endpoints on Controls > Disk encryption are
enabled even when MDM not turned on
- Update Disk encryption key modal copy
-Other TODO:
- Confirm when integrated with API:
- Aggregate disk encryption counts
- Disk encryption table Linux column
- Show disk encryption key action on host details page when expected
- Opens Disk encryption key modal, displays key as expected
**Backend**:
- For "No team" and teams, error when trying to update disk encryption
enabled while no server private key is present.
- Remove requirement of mdm being enabled for use of various endpoints
related to Linux disk encryption
- Update tests
_________
**Host details and my device page banners**

**Create key modal**
<img width="1799" alt="create-key-modal"
src="https://github.com/user-attachments/assets/81a55ccb-b6b9-4eb6-b2ff-a463c60724c0">
**Enabling disk encryption**

**Disk encryption: Fleet free**
<img width="1912" alt="free"
src="https://github.com/user-attachments/assets/9f9cace3-8955-47c2-87d9-24ff9387ac1a">
**Custom settings: turn on MDM**
<img width="1912" alt="turn on mdm"
src="https://github.com/user-attachments/assets/4d3ad47b-4035-4d93-86f0-dc2691b38bb4">
**Device status indicators**

**Encryption key action and modal**

- [x] Changes file added for user-visible changes in `changes/`
- [x] Added/updated tests
- [x] Manual QA for all new/changed functionality
- [ ] Full e2e testing to do when integrated with backend
---------
Co-authored-by: Jacob Shandling <jacob@fleetdm.com>
Co-authored-by: Ian Littman <iansltx@gmail.com>