Date: Sat, 17 Jun 2000 19:51:33 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.ORG> To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: questions@FreeBSD.ORG, Shawn Ramsey <shawn@megadeth.org> Subject: Re: reinstalling boot blocks... Message-ID: <200006180251.TAA04361@john.baldwin.cx> In-Reply-To: <20000618041447.A631@hades.hell.gr>
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On 18-Jun-00 Giorgos Keramidas wrote: > On Fri, Jun 16, 2000 at 05:41:16PM -0700, Shawn Ramsey wrote: >> What is the easiest/safest way to re install the boot blocks on a >> 3.4-RELEASE machine? Can I just use the boot disks, and write out the >> changes in fdisk? (being sure the newfs flag is N! ) ? > > What you want is boot0cfg. Just run on the disks you want to install > the boot loader the command 'boot0cfg -B' and according to the manpage > of boot0cfg the MBR will be replaced by a new boot block, without > affecting the existing slice table. That just updates the MBR. FreeBSD's actual boot blocks are boot1, boot2, and the loader. The loader is loaded from /boot/loader, so a simple make world updates it. The other boot blocks (boot1 and boot2) have to be installed using 'disklabel -B'. -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.cslab.vt.edu/~jobaldwi/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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