> -----Original Message----- > From: [email protected] <[email protected]> On Behalf Of > Tony Battersby > Sent: Tuesday, April 27, 2021 03:07 AM > To: [email protected] > Subject: [yocto] Hardknott: grub immediately reboots > > After upgrading from Dunfell (YP 3.1) to Hardknott (YP 3.3), our firmware was > unable to boot. Our target hardware is x86-64 booting in legacy BIOS mode > using > grub on a variety of motherboards and CPUs. The grub menu would never show > up; > instead it would reboot immediately, leading to an endless reboot loop. > > I have two different workarounds. Create a bbappend file for grub, and do > one of the > following two things: > > 1) Add the following line: > > CFLAGS_remove = "-O2"
I think we should probably remove this. That's what Fedora also seems to be doing so Os is used. https://src.fedoraproject.org/rpms/grub2/blob/rawhide/f/grub.macros#_19 and what grub configure expects: https://git.savannah.gnu.org/cgit/grub.git/tree/configure.ac#n41 Thanks, Anuj
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