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

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Brian Murray (brian-murray):

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).

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: initramfs-tools (Ubuntu Jammy)
     Importance: Medium
         Status: Triaged


** Tags: foundations-todo
-- 
initrd lacks modules to mount boot image from http boot
https://bugs.launchpad.net/bugs/1981385
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