# OEMDRV Bootstrap — install.sh + install_from_repo.sh

the script `./system_setup/install.sh` prepares a target machine for automated Fedora deployment. It shrinks an existing partition to carve out a dedicated **OEMDRV** partition, which Anaconda/Kickstart will detect automatically during installation.

## What it does

1. Lists all ext4 and btrfs partitions that have enough free space to be shrunk.
2. Asks you to select one and shrinks it by **4 GiB**.
3. Creates a new 4 GiB BTRFS partition labeled `OEMDRV` in the freed space.
4. Mounts it to `/opt/sys_config` with `compress=zstd:6`.
5. Clones this repository (depth 1) into `/opt/sys_config`.

## Prerequisites

- Run as **root** on the target machine (live system or installed OS).
- The following tools must be present: `parted`, `e2fsck`, `resize2fs` or `btrfs-progs`, `mkfs.btrfs`, `git`, `curl`.
- The partition you want to shrink must **not** be the root filesystem (`/`) and must have at least **4.5 GiB free**.
- Network access to `gitea.dtext.online`.

## Run directly from the repository

Download the script first, then run it as root:

```bash
curl -fsSL https://gitea.dtext.online/obel1x/fedora-OEMDRV/raw/branch/main/system_setup/install.sh -o /tmp/install.sh
sudo bash /tmp/install.sh
```

## After the script completes

Configure your environment before running any installation:

```sh
cp /opt/sys_config/config/setup_system.conf.dist /opt/sys_config/config/setup_system.conf
# Edit setup_system.conf — set TLDOMAIN, SERVERFQDN_IPA, SERVERFQDN_NC, and paths.
```

Optionally add local per-machine overrides in `config.d/`:

```sh
# Example: use the devel branch on this machine
echo 'export UPGRADEBRANCH="devel"' > /opt/sys_config/config.d/system_defines.conf
```

Once configured, boot the Fedora installer from USB — Anaconda will detect the `OEMDRV` partition and run the Kickstart automatically.

## Supported filesystems for shrinking

| Filesystem | Method |
|---|---|
| ext4 | `e2fsck` + `resize2fs` (offline) |
| btrfs | `btrfs filesystem resize` (temporary mount) |