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Brot der Bot 92b5e9c4a6 install.sh: fix four bugs found during live testing

Free-space start alignment
  parted reports free space starting at 0,02 MiB (before the GPT
  alignment boundary). The collect_free_space awk now rounds the start
  up to the next whole MiB (ceiling) and enforces a minimum of 1 MiB,
  then recomputes the usable size from the adjusted start. This prevents
  parted from being asked to create a partition at 0 MiB, which it
  cannot do.

Locale-independent partition creation
  The previous `printf 'Yes\n' | parted mkpart` relied on parted
  accepting an English answer to its alignment-confirmation prompt.
  On a German-locale system parted asks "Ist dies noch akzeptabel?"
  and ignores "Yes", causing mkpart to fail. Replaced with `parted -s`
  (script/non-interactive mode), consistent with every other parted
  call in the script.

Correct new-partition detection on disks with gaps
  The old heuristic took the highest partition number after partprobe.
  On a disk where existing partitions are numbered 2/3/4, a new
  partition in the gap before them receives number 1 — making the
  old heuristic point at partition 4 (the existing btrfs volume) and
  subsequently run mkfs.btrfs on it. The new awk matches by start
  position (OEMDRV_START ± 1 MiB) instead, which is unambiguous
  regardless of how numbers are assigned.

Infinite loop on EOF stdin
  When the selection while-loop's `read` hits EOF (e.g. stdin exhausted
  after sudo consumed a piped password), it returns exit code 1 with an
  empty INPUT, which falls through to "Invalid input." and spins
  forever. Added `|| { echo; echo "Aborted."; exit 0; }` to all three
  read calls in the loop.

install.md: drop stale install_from_repo.sh reference from title;
clarify that REPO_URL/REPO_BRANCH overrides are optional.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-01 13:56:34 +02:00

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OEMDRV Bootstrap — install.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

Lists all ext4 and btrfs partitions that have enough free space to be shrunk.
Asks you to select one and shrinks it by 4 GiB.
Creates a new 4 GiB BTRFS partition labeled OEMDRV in the freed space.
Mounts it to /opt/sys_config with compress=zstd:6.
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:

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

Run directly from another repository

If you are on another fork or branch and you want to test your changes, do:

export REPO_URL="https://yourgitserver.tld/.../fedora-OEMDRV.git"
export REPO_BRANCH="anotherbranch"
curl -fsSL ${REPO_URL%.git}/raw/branch/${REPO_BRANCH:-main}/system_setup/install.sh -o /tmp/install.sh
sudo -E bash /tmp/install.sh

Both are optional. That way, install.sh should know what to pull.

After the script completes

Configure your environment before running any installation:

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/:

# 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)

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