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Thread: Re: faster booting




Re: faster booting
country flaguser name
United States
2008-03-05 15:53:31
	I second the statement about BIOS checks taking a long
time. After working with many FreeBSD boxes, mostly Dells
and a
few IBM servers, they can take forever (2 to 3 minutes)
which
seems like forever when one is trying to get back on line
quickly.
	If one is using a serial console, the |/-|/- of the
kernel loading doesn't start until most of that time is
gone. I
am guessing the actual FreeBSD kernel bootup is maybe 30
seconds
or so. If you have a SCSI bus, be sure the settling time
built
in to the boot process is as short as will still work
correctly.
Earlier versions of FreeBSD waited 15 seconds default. I
safely
got it down to 1.5 seconds and might have even gotten it
shorter
if I really knew how long it took the bus to settle.

Martin McCormick WB5AGZ  Stillwater, OK 
Systems Engineer
OSU Information Technology Department Network Operations
Group
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Re: faster booting
user name
2008-03-05 16:02:14

Martin McCormick skrev:
> 	I second the statement about BIOS checks taking a
long
> time. After working with many FreeBSD boxes, mostly
Dells and a
> few IBM servers, they can take forever (2 to 3 minutes)
which
> seems like forever when one is trying to get back on
line quickly.
> 	If one is using a serial console, the |/-|/- of the
> kernel loading doesn't start until most of that time is
gone. I
> am guessing the actual FreeBSD kernel bootup is maybe
30 seconds
> or so. If you have a SCSI bus, be sure the settling
time built
> in to the boot process is as short as will still work
correctly.
> Earlier versions of FreeBSD waited 15 seconds default.
I safely
> got it down to 1.5 seconds and might have even gotten
it shorter
> if I really knew how long it took the bus to settle.
> 
> Martin McCormick WB5AGZ  Stillwater, OK 
> Systems Engineer
> OSU Information Technology Department Network
Operations Group
> _______________________________________________
> freebsd-questionsfreebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-que
stions
> To unsubscribe, send any mail to
"freebsd-questions-unsubscribefreebsd.org"
> 
> 

I tend to not reboot machines...FreeBSD somehow makes that
possible. But 
If I do a shutdown there's the CTRL-D to get it back up
fast....

Just my nickels worth.

/R

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