With unpacked kernel.efi boot to rdinit=/bin/sh res usage is 456756 so it feels as if (loop) device is not freed by grub / shim / firmware.
Next up is to try to play with things interactively in grub shell, to try to figure out which commands cause memory to baloon. Or like see if it can be freed after loading things from squashfs. UC18 loads kernels from squashfs in under 512MB => compare if grub in uc18 is better. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878541 Title: Grub fails to load kernel from squashfs if mem < 1500mb To manage notifications about this bug go to: https://bugs.launchpad.net/snapd/+bug/1878541/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
