How to list GRUB2's “menuentries” in command-line under Centos-8? The used workable method "fgrep menuentry /etc/grub2.conf" failed. Because at Centos-8/RHEL-8, they DO NOT store menuentry in /etc...

What I want to achieve I want to customize a GRUB EFI image, and debug it while running on QEMU. So I'm trying to debug a vanilla GRUB image before customizing it. What I have done so far I dow...

After upgrading my Ubuntu desktop from 17.10 to 18.04, everything went smooth until I restarted my PC. The first suspicious thing I noticed was that it has the same grub with 17.10 - it selec...

Is it filename wildcard expansion possible in GRUB scripts? Something like: for i in directory/*; do echo $i; done My intention is for GRUB to load different cfg files located in certain direct...

I want to see GRUB2 debug logs generated by grub_dprintf(), for example, at mmap.c: grub_dprintf ("mmap", "EFI memory region 0x%llx-0x%llx: %d\n", (unsigned long long) desc->physical_start, ...