Date: Wed, 7 Aug 2002 09:22:33 -0400 From: Rob Ellis <rob@web.ca> To: freebsd-questions@FreeBSD.ORG Subject: Re: Questions about vinum and failure of root partition Message-ID: <20020807132232.GA47309@web.ca> In-Reply-To: <005e01c23dcb$061acbb0$6602a8c0@swbell.net> References: <200208070101.g7711iU06306@clunix.cl.msu.edu> <005e01c23dcb$061acbb0$6602a8c0@swbell.net>
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one workaround for having to have a non-mirrored boot partition with 2 disks is to put 2 slices on each disk -- one for fbsd system partitions, and one for mirrored data... ad0s1, ad2s1 -> small bootable slices for os partitions ad0s2, ad2s2 -> rest of the disk for mirrored data partitions install fbsd on ad0s1, with partitions for / and swap and maybe tmp. partition ad2s1 the same way. create your vinum mirror using partitions on ad0s2 and ad2s2 and symlink /var and whatever else you want to directories on the mirror. then create a backup of the fbsd partitions on the first disk, copying everything from ad0s1 to ad2s1: dd if=/dev/ad0s1 of=/dev/ad2s1 bs=102400 fsck the newly copied filesystems: # a, e... are partitions for i in a e f g h ; do fsck -y /dev/ad2s1$i ; done install ad0's master boot record to ad2 fdisk -B /dev/ad2 and now the second disk is a bootable copy of the first; if the first disk fails, you swap the cables on the disks (make the secondary the primary) and reboot -- the os and vinum come back up. - rob To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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