How to apply udev rules to boot device after (not during) boot?

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Goal is to have the Linux OS running in a minimal/bare way: strip everything that is not essential to boot the OS, from the boot process. The machine won't be a desktop, not a typical flexible server, more like an appliance.



  1. Non essential modules are not loading during boot.


  2. Udev was removed from initramfs.


  3. A custom hook was created to be able to boot into a btrfs file system without udev.

Udev is started after the initramfs phase. As a result my (custom) udev ACTION="add,change" rule is not applied to the boot device.



Which approach to take to apply udev rules to the boot device after — not during — boot? Is there something like ACTION="udev_init"?




udev




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    favorite












    Goal is to have the Linux OS running in a minimal/bare way: strip everything that is not essential to boot the OS, from the boot process. The machine won't be a desktop, not a typical flexible server, more like an appliance.



    1. Non essential modules are not loading during boot.


    2. Udev was removed from initramfs.


    3. A custom hook was created to be able to boot into a btrfs file system without udev.

    Udev is started after the initramfs phase. As a result my (custom) udev ACTION="add,change" rule is not applied to the boot device.



    Which approach to take to apply udev rules to the boot device after — not during — boot? Is there something like ACTION="udev_init"?




    udev




    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Goal is to have the Linux OS running in a minimal/bare way: strip everything that is not essential to boot the OS, from the boot process. The machine won't be a desktop, not a typical flexible server, more like an appliance.



      1. Non essential modules are not loading during boot.


      2. Udev was removed from initramfs.


      3. A custom hook was created to be able to boot into a btrfs file system without udev.

      Udev is started after the initramfs phase. As a result my (custom) udev ACTION="add,change" rule is not applied to the boot device.



      Which approach to take to apply udev rules to the boot device after — not during — boot? Is there something like ACTION="udev_init"?




      udev




      share|improve this question














      Goal is to have the Linux OS running in a minimal/bare way: strip everything that is not essential to boot the OS, from the boot process. The machine won't be a desktop, not a typical flexible server, more like an appliance.



      1. Non essential modules are not loading during boot.


      2. Udev was removed from initramfs.


      3. A custom hook was created to be able to boot into a btrfs file system without udev.

      Udev is started after the initramfs phase. As a result my (custom) udev ACTION="add,change" rule is not applied to the boot device.



      Which approach to take to apply udev rules to the boot device after — not during — boot? Is there something like ACTION="udev_init"?





      udev





      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 18 '17 at 18:18









      jasonwryan

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      asked Nov 18 '17 at 9:47









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