[CentOS-devel] Balancing the needs around the RHEL platform
Matthew Miller
mattdm at mattdm.orgFri Jan 1 22:01:27 UTC 2021
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On Fri, Jan 01, 2021 at 04:50:44PM -0500, Nico Kadel-Garcia wrote: > possible to set the boot loader to consider one kernel as the > "default", but to beet the next time with a designated kernel one time > only. It made testing kernels safer because a failed kernel > installation failed reboot only *once* and only needed a power cycle > to revert. I don't believe grub has ever been successfully patched to > support this: I'd welcome it if they did, though i'm not testing > hardware and kernels these days. Grub can do a number of fancy things, including "boot once" and (I think probably better) a "fallback" option. (You may want `kernel.panic = 10` or something in /etc/sysctl.conf to go along with this, depending on what kind of failure you're expecting.) -- Matthew Miller <mattdm at fedoraproject.org> Fedora Project Leader
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