Messages in this thread |  | | Subject | Re: Linux should not set the "PnP OS" boot flag | Date | Sun, 7 Oct 2001 11:02:53 +0100 (BST) | From | Alan Cox <> |
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> This change has to be permanent. Linux should never automatically > set the boot flag, no matter how PnP-competent we make it. > The reason is that setting the flag affects what the BIOS will > do on the _subsequent_ boot. But Linux can't possibly know > which operating system will be booted _next time_. This is > something that has to be left up to the user to control.
When it cuts your reboot time right down then its a very useful thing to set. Also remember that this is entirely configurable. In fact the last stage of a pnp aware bootup requires that user space sets the "booted ok" flag.
> a "quick boot" flag, but the time savings involved must be on the > order of milliseconds. All that we seem to achieve by booting
On some boxes they are much higher
> If I'm right, then bootflag.c should be modified (see my patch) > to remove the bit that sets the flag. It would be nice, > however, if the flag could be controlled via a /proc entry.
No need. It's all already handled
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