关于Calamares安装器中pkgselect及pkgselect snap模块配置文件位置与额外模块工作机制的问询

Hey there, I totally get the frustration of hunting down Calamares module configs when customizing an ISO with Cubic—great work on setting this up for your university, by the way! Let’s break this down for you:

配置文件的可能位置 #

• First off, Calamares modules come in two flavors: built-in core modules, and custom/extra modules. The pkgselect and pkgselect snap modules you’re looking for are likely binary modules (the .so files you found, probably in /usr/lib/x86_64-linux-gnu/calamares/modules/—you had the path almost right).
• For binary modules, their configs aren’t always standalone text files. Sometimes the interface text and settings are hardcoded directly into the .so file, especially if they’re custom builds for Lubuntu. But there are a few places to check still:
  • Open up /etc/calamares/settings.conf (this is Calamares’ main config file) and search for entries related to pkgselect. You might see a line like config: modules/pkgselect.conf—if that’s there, check /etc/calamares/modules/ or /usr/share/calamares/modules/ for that .conf file.
  • Lubuntu’s custom branding often holds interface text too. Look in /usr/share/calamares/branding/lubuntu/—files like branding.desc or style.conf might have the UI strings you’re trying to modify.
  • When using Cubic, sometimes custom configs are tucked away in the project’s chroot custom script directory. If you still have the Cubic project open, check the custom scripts section for any files that might inject configs for these modules during ISO building.

额外模块的工作机制 #

Calamares loads extra modules (like your snap-enabled pkgselect) through a straightforward dynamic system:

1. Declaration in main config: All modules (core and extra) need to be listed in /etc/calamares/settings.conf under the modules array. Each entry specifies the module name, optional config path, and whether it’s required for installation.
2. Dynamic loading: When Calamares starts up, it reads the settings.conf list, then looks for the corresponding .so binary in the standard module path (the one you found with the .so files).
3. Config resolution: If a config path is specified, Calamares reads that file to get module-specific settings. If not, the module uses hardcoded defaults (which is probably what’s happening with your pkgselect modules).
4. Integration with install flow: Each module is tied to a specific stage of the installation (like "package selection" in your case) and runs its logic at that point—handling UI interactions, package selection, and passing data to other modules.

实用排查步骤 #

• Run find /usr/lib -name "pkgselect*.so" in a terminal to get the exact path of the binary modules.
• Launch Calamares in debug mode with calamares -d (you can do this in Cubic’s chroot environment) — the output will log exactly where it’s looking for configs and how it’s loading the modules, which is super helpful for tracking down hidden settings.
• If you want to add a custom config, try creating a pkgselect.conf file in /etc/calamares/modules/ with your desired settings, then update the corresponding entry in settings.conf to point to it. Many binary modules will pick up external configs even if they don’t ship with one by default.

备注：内容来源于stack exchange，提问作者Efeİsot KMR