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pmb.config.init: Add warning for kernels supposedly not supported by systemd

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Display a warning for older kernel versions and new devices
with undefined kernel versions before prompt asking
if systemd has to be installed. Use a warning instead of hiding an option,
because systemd may work with older kernels if they have needed features
backported and to keep users and maintainers informed of necessity to update
mainline kernels.

Closes #2588

Part-of: https://gitlab.postmarketos.org/postmarketOS/pmbootstrap/-/merge_requests/2647
This commit is contained in:
Anri Dellal 2025-07-11 19:58:36 +03:00 • committed by Oliver Smith
parent fea1c95702
commit 97f8b0c0d3
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GPG key ID: 5AE7F5513E0885CB
1 changed files with 46 additions and 1 deletions
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47
pmb/config/init.py
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@ -20,7 +20,7 @@ import pmb.aportgen
import pmb.config
import pmb.config.pmaports
from pmb.core import Config
from pmb.types import PmbArgs
from pmb.types import Apkbuild, PmbArgs
import pmb.helpers.cli
import pmb.helpers.devices
import pmb.helpers.git
@ -782,6 +782,50 @@ def ask_for_locale(current_locale: str) -> str:
return f"{ret}.UTF-8"
def print_systemd_warning(device_exists: bool, apkbuild: Apkbuild, kernel: str) -> None:
kernel_version = None
if device_exists:
linuxdep = next((pkg for pkg in apkbuild["depends"] if pkg.startswith("linux-")), None)
if linuxdep is None:
kernel_subpkg = next(
subpkg for subpkg in apkbuild["subpackages"] if subpkg.endswith("-" + kernel)
)
linuxdep = next(
(
dep
for dep in apkbuild["subpackages"][kernel_subpkg]["depends"]
if dep.startswith("linux-")
),
None,
)
if linuxdep:
linux_apkbuild = pmb.helpers.pmaports.get(linuxdep, must_exist=False)
if linux_apkbuild:
kernel_version = linux_apkbuild["pkgver"]
systemd_req = pmb.config.pmaports.read_config().get("systemd_linux_min_version", "5.4")
systemd_warning = (
not device_exists
or kernel_version
and pmb.parse.version.compare(
kernel_version,
systemd_req,
)
== -1
)
if systemd_warning:
if kernel_version is None:
logging.warning(f"WARNING: systemd requires kernel version {systemd_req}.")
logging.warning(
"WARNING: Installing systemd with older kernel may result in non-bootable system."
)
else:
logging.warning(
f"WARNING: Kernel version {kernel_version} is lower than systemd's minimal requirement."
)
logging.warning("WARNING: Choosing systemd may result in non-bootable system.")
def frontend(args: PmbArgs) -> None:
# Work folder (needs to be first, so we can create chroots early)
config = get_context().config
@ -846,6 +890,7 @@ def frontend(args: PmbArgs) -> None:
config.ui_extras = ask_for_ui_extras(config, ui)
# systemd
print_systemd_warning(device_exists, apkbuild, config.kernel)
config.systemd = ask_for_systemd(config, ui)
ask_for_provider_select_pkg(f"postmarketos-ui-{ui}", config.providers)