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>> > >> I need to test a kernel config change on a remote system. Is there a |
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>> > >> safe way to do this? The fallback thing in grub has never worked for |
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>> > >> me. When does that ever work? |
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>> > > |
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>> > > You can press ESC in the Grub screen and it will take you to text-only |
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>> |
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>> mode. |
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>> |
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>> > > There, you select an entry, press "e" and edit it. Press ENTER when |
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>> |
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>> you're |
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>> |
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>> > > finished, and then press "b" to boot your modified entry. |
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>> > > |
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>> > > That way, you can boot whatever kernel you want if the current one |
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>> |
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>> doesn't |
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>> |
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>> > > work. |
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>> > |
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>> > I can't do that remotely though. I'm probably asking for something |
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>> > that doesn't exist. |
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>> > |
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>> > - Grant |
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>> |
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>> Situations like these that made me decide with great conviction to always |
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>> deploy my servers virtualized, even if the box in question will only host a |
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>> single VM. |
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>> |
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>> Now, if I lost my intelligence for a couple of seconds and somehow ended up |
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>> with a VM that's no longer accessible remotely, I just connect to the |
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>> virtual console. |
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>> |
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>> The flip side? Now I'm getting too daring/careless, and the uptime now |
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>> drops below my (self-imposed) target of 99.99% :-P |
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> |
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> What do you do when you need to upgrade the host, rather than the guest? |
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> |
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> -- |
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> Regards, |
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> Mick |
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|
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Exactly. |
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|
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- Grant |
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