Linux Rules
Linux Rules
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42 comments
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You don't need a bootloader if you don't reboot
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on a serious note, is possible to never reboot?
like an high availability server that can't never go down, how do they manage kernel updates? *
- yes i know that now there is kube and docker etc and you can update the container with zero downtime. but how they did it 10 years ago?
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Kernel live patching, which basically rewires kernel functions at runtime, lets you update the kernel without rebooting. I don't remember how old that is though.
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there's also kexec
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That's still downtime, it just doesn't reboot firmware
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You can go without rebooting if you always have power, don't care about updates (security) and don't run into bugs.
It's done with multiple servers I guess. One updates/reboots while the other ones don't.
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every day we strive further from god
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42 comments