Date: Tue, 5 Feb 2002 09:58:35 -0500 From: Alan Eldridge <alane@geeksrus.net> To: Mike Meyer <mwm-dated-1013331451.0dad58@mired.org> Cc: questions@freebsd.org Subject: Re: ATA_STATIC_IDS Message-ID: <20020205145835.GA52357@wwweasel.geeksrus.net> In-Reply-To: <15455.40571.628684.410211@guru.mired.org> References: <91010086@toto.iv> <15455.32686.88737.631037@guru.mired.org> <20020205070406.GA93914@wwweasel.geeksrus.net> <15455.40571.628684.410211@guru.mired.org>
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On Tue, Feb 05, 2002 at 02:57:31AM -0600, Mike Meyer wrote: >Alan Eldridge <alane@geeksrus.net> types: >> On Tue, Feb 05, 2002 at 12:46:06AM -0600, Mike Meyer wrote: >> >Alan Eldridge <alane@geeksrus.net> types: >> >> E.g., with static ids I have my / on ad4s1a. If I don't enable ATA_STATIC_IDS, >> >> when I go to reboot the system, do I get an unbootable system, or one that just >> >> can't fsck or mount anything once it boots? (I'd guess the answer is "yes"...) >> >The answer is "it depends". If ATA_STATIC_IDS is enabled, the drives >> >are numbered so that 0 is the primary master, 1 is the primary slave, >> >2 is the secondary master, 3 is the secondary slave, and so >> >on. Hmmm. Just how many IDE controllers do you have, anyway? >> Bottom line seems to be that disabling ATA_STATIC_IDS is a Bad Idea most >> of the time, from what you said (elided). Swapping on /usr? The horror ... >> >> So let me ask this: why would you want to use dynamic ids? With vinum, >> perhaps? > >You only get into problems if you change the disk configuration. If >you're not going to do that, wouldn't you prefer having ad0 and ad1 to >having ad4 and ad6? Certainly. If I'm doing a fresh install, can I get the CDROM boot to come up using dynamic numbers so I don't have the transitioning problem? -- Alan Eldridge "Dave's not here, man." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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