Date: Fri, 23 May 2008 08:25:04 -0400 From: Tom Rhodes <trhodes@FreeBSD.org> To: freebsd-doc@FreeBSD.org Subject: Re: Mistake in the FreeBSD Handbook on geom Message-ID: <20080523082504.587e2b07.trhodes@FreeBSD.org> In-Reply-To: <48369F96.6010601@otenet.gr> References: <d93d02080805230123h7f65d224w2b90e5d06840c94b@mail.gmail.com> <48369F96.6010601@otenet.gr>
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On Fri, 23 May 2008 13:42:30 +0300 Manolis Kiagias <sonicy@otenet.gr> wrote: > Lasse Brandt wrote: > > Hi there, > > > > I think I might have found a mistake in the handbook - first off this > > is the first time I try to setup geom, so there is a good chance that > > I might miss something :) > > > > I was following instructions on this page: > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html > > > > About half-way down it says: > > "Now edit the replicated /mnt/etc/fstab file and remove or comment out > > the swap file [1]. Change the other file system information to use the > > new disk as shown in the following example:" > > > > A little later you should reboot into single user mode and "At the > > console, ensure that the system booted from the gm0s1a." > > > > But I doubt that will ever happen - the handbook only tells me to > > change /mnt/etc/fstab (which is the secondary disk) so when booting, > > it will still use /etc/fstab (which hasn't changed). > > > > After I changed /etc/fstab as well - everything worked fine :) > > > > > > I have not read this part of the handbook carefully (yet) but it seems > to suggest a way of using two disks, where you transfer everything to > the second disk (after you create a gm device on it) and then you reboot > from this second disk. In this case, the instructions are correct: > /mnt/etc/fstab will become /etc/fstab when you effectively boot from the > second disk. One possible caveat is that you would have to possibly > adjust your BIOS (or disk jumpers) so it actually boots from the second > disk the second time. It seems your rebooted using the first disk. > > If what you are actually looking for is a simple way to create a RAID1 > for a new installation, this is an absolutely excellent and quite simple > article: > > http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html?page=1 > > I have used this concept on several installs, and was always successful. I need to re-write this section anyway. Actually, it's been on my TODO list for some time to add more sections here too. -- Tom Rhodes
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