Comment # 2 on bug 1206027 from Frederic Crozat

(In reply to Tseng from comment #1)
> (In reply to Frederic Crozat from comment #0)
> > While debugging https://bugzilla.opensuse.org/show_bug.cgi?id=1129466, I
> > found a problem with current fwupd, transactional update system (MicroOS)
> > and UEFI Capsule update.
> > 
> > To reproduce:
> > - edit /etc/fwupd/uefi_capsule.conf and uncomment in section [uefi_capsule]
> > EnableGrubChainLoad=true
> > 
> > - ensure you have an update requiring uefi capsule pending
> > - run fwupdmgr update
> > - check journal logs (journalctl -u fwupd.service):
> > 
> > fwupd[29391]: /usr/sbin/grub2-mkconfig: ligne 306: /boot/grub2/grub.cfg.new:
> > Read-only file-system
> > fwupd[29786]: /usr/bin/grub2-editenv���: error���: can't open ���
> > /boot/grub2/grubenv���������: Read-only file-system
> > 
> > 
> > fwupdmgr should be modified to call transactional-update grub.cfg instead of
> > grub2-mkconfig on transactional system.
> 
> To reproduce this issue, can I just simply install MicroOS in Virtual
> Machine(QEMU/KVM) of opensuse-15.3 ? Or maybe I need to purchase Lenovo Z13
> ? Many thanks.

Please check with Gary or Jo, they have more knowledge about that. Or ask
upstream.

There is probably some way to simulate a UEFI capsule for testing.