[Bug 1981385] Re: initrd lacks modules to mount boot image from http boot

[Benjamin Drung]

** Also affects: initramfs-tools (Ubuntu Jammy)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to initramfs-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1981385

Title:
  initrd lacks modules to mount boot image from http boot

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Jammy:
  Triaged

Bug description:
  If you use UEFI http boot to boot an image (rather than an EFI
  executable) and get all the way to a normal userspace, you can access
  the boot image as /dev/pmem0. But this is not accessible in the
  initrd; presumably some modules are missing. Dimitri added some
  modules that are clearly going to be necessary (kernel/drivers/nvdimm)
  in 0.140ubuntu14 and I added kernel/drivers/dax too in local
  experiments but this appears not to be enough to get it to appear.

  This is desirable because then you can just feed an installer ISO to a
  machine via http boot and the installer just works as normal (the
  speed and, uh, quality, of the implementation of HTTP in a given
  machine's firmware may mean this isn't always the best option but it
  would be nice if it worked in case someone's machine actually does
  this well).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1981385/+subscriptions