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Soft-reboot in systemd 254 sounds a lot like Windows' Fast Startup
(www.theregister.com)
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... I feel like loading the boot sector of a disk and jumping into the boot loader would be a more useful feature than whatever this is. I usually reboot to switch os or upgrade the kernel. Userspace cleanup is already pretty easy. How do zombie processes or open files fare with this scheme? Crashed drivers? Why replace the root fs?
Yeah, I'm wondering the same. Maybe it's helpful for containerized apps or something?
Anyone else have any insight on this?