Date: Mon, 08 Sep 2003 09:26:37 GMT From: Mark <admin@asarian-host.net> To: "Vincent Poy" <vince@oahu.WURLDLINK.NET> Cc: Joshua Oreman <oremanj@www.get-linux.org> Subject: Re: Ghost for FreeBSD Message-ID: <200309080926.H889QZQM051659@asarian-host.net> References: <20030903221005.A64375-100000@oahu.WURLDLINK.NET>
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----- Original Message ----- From: "Vincent Poy" <vince@oahu.WURLDLINK.NET> To: "Mark" <admin@asarian-host.net> Cc: "Ruben de Groot" <mail23@bzerk.org>; <questions@freebsd.org>; "Joshua Oreman" <oremanj@www.get-linux.org> Sent: Thursday, September 04, 2003 10:16 AM Subject: Re: Ghost for FreeBSD Sorry for the tardiness of my reply (see below); I was otherwise engaged. > > But what if I just made a boo-boo on the root partition? My quandary has > > always been that I know of no way to restore the / slice on the existing > > disk-set (RAID-1). I can boot off the CD, but then I am still stuck on > > the same / slice. Although I have not yet messed up / to the point of > > having to do a full restore, this might well be needed at some point (an > > extended power-outage, for instance, ruining the file-system). > > Well, if you made a error on the root partition, this assumes you > did not mirror your errors to the backup drive... Then all you have to do > is boot using the backup drive from the Boot Manager. > > > Would it work if I mounted a "spare" partition, on the same array, > > restore the root partition therein, and then edited /etc/fstab > > accordingly? It seems to me, though, that the kernel cannot possibly use > > /etc/fstab to determine what device the root partition will be, as > > /etc/fstab is itself on that root-partition. So, I then take it the MBR > > supplies the entry-point for FreeBSD to boot from (which will be > > considered the root partition), so that booting of a "spare" slice would > > require an edit in the MBR (which I am not too keen on doing, btw). > > No, you would not have to mount it. Assuming you had the FreeBSD > Boot Manager on the drives... Ok. But this still means that, in order to restore the root partition, I will need to boot from a different drive, right? And I have no other, bootable drive in the machine: just the array. I had hoped that booting from the FreeBSD boot CD would have the same effect as booting from a different hard disk; but alas, the FreeBSD boot CD mounts the existing array, which brings me back to square one. Which, of course, prompts the question: is there not a way to boot from the FreeBSD boot CD that does not use the existing array? Thanks, - Mark
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