On 06/30/2018 10:11 AM, Lennart Poettering wrote: > On Fr, 29.06.18 17:26, Kyle Marek (pspps...@gmail.com) wrote: > >> Kernel updates are different. You *have* to reboot in order to run the >> new kernel (except for security updates applied with kpatch) and a >> broken kernel has the potential to simply lock up without even launching >> /sbin/init, for example. In these situations, administrators have to >> manually reboot the machine. > That's not true. UEFI provides interfaces to configure the system > watchdog. This means the boot loader can set up the watchdog right > before starting the kernel, and if userspace doesn't take possesion of > the watchdog in time the system will reboot automatically, triggered > by hardware. > >> No amount of unattended failed-boot-check logic in the bootloader can >> run without user intervention when a broken kernel is still running/just >> sitting there. > That's simply not true. UEFI provides everything to make kernel > updates mostly safe.
And when either of these things themselves have bugs, or aren't on an EFI system...? Or kernel does take possession of the watchdog but something important crashes immediately afterwards (initrd drops to shell)? _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/WCJGHCBJQMREG2RH667GNVDPUBYBBBCT/
