On 01/02/2014 03:42 PM, Patrick O'Callaghan wrote:
That would imply that someone actually took the decision to *remove* the protections against leaving the system with no installed kernel. Was this discussed? What were the proposers smoking?
It's always been a principle that *nix won't stop you from doing something stupid if it prevents me from doing something clever. I can't see how removing the installed kernel could be clever, but that might have been behind their thinking.
Actually, AIUI, the file isn't removed until the last program that's using it closes the file. Now, I can't swear to it, but it's reasonable to think that the kernel keeps its file open so that parts of it can come in and out of memory as needed, although that may not be true any more because of how much RAM most machines have. Even so, uninstalling the running kernel won't do anything about the copy that's actually doing the work, because that's in RAM so as long as you remember to install at least one kernel before rebooting, you should be safe. What happens if your system crashes, or there's a power failure before that happens is best left as an exercise for the reader.
I'm not saying that I think this is the way dnf should work, but it's possible that this is how the devs were thinking.
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