bootc-dev / bootc-dev/bootc

grub 2.14 (blsuki) breaks boot on installs without a separate /boot partition - BLS entries not found

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Rust
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Description

On systems using grub 2.14, a bootc install without a separate /boot partition boots into an empty GRUB menu (no kernel entry, only "UEFI Firmware Settings") and fails to boot. With grub ≤2.12 the same install boots fine.

Environment:
- bootc 1.15.2, ostree backend, UEFI
- grub 2.14 (ALT Linux grub-2.14)
- bootc install to-disk --generic-image (no LUKS, no separate /boot)

grub ≤2.12 blscfg searched /loader/entries, and on miss automatically retried /boot/loader/entries

Temporary fix bootupd:
cat /usr/lib/bootupd/grub2-static/configs.d/10_blscfg.cfg
blscfg --path /boot/loader/entries --enable-fallback

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