Public bug reported:
Development versions of snappy Ubuntu Core leverage grub's squashfs
support to load kernels and initramfs directly from the kernel snap
(which is a squashfs-format archive). This requires the loopback and
the squash4 grub modules to be loaded.
Currently, neither of these modules is included in the signed EFI
binaries, therefore this boot strategy is not compatible with
SecureBoot.
We should verify that the loopback and squash4 modules are suitable for
inclusion in the signed binary, and include them.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1604499
Title:
include loopback and squash4 modules in EFI binary
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