Date: Mon, 8 Sep 2003 14:54:37 -0700 (PDT) From: Jason Stone <freebsd-current@dfmm.org> To: freebsd-current@freebsd.org Subject: Re: re-fdisk'ing a partition - permission denied? Message-ID: <20030908143810.V55021@walter> In-Reply-To: <20030908203049.5FF375D04@ptavv.es.net> References: <20030908203049.5FF375D04@ptavv.es.net>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > You have hit one of the main issues still to be resolved in GEOM. (I > don't know that phk thinks it's a problem to be resolved or a feature to > be documented.) > > In any case, since GEOM was added you can no longer slice or label an > active device. Ah - is that to say that, in general, you can't mess with the disk's MBR? I was also running into this. The situation that I have is that I have a bunch of colocated machines that are set in the bios to try booting a hard disk, and then, failing that, pxe netboot. I keep a pxeboot server there in the colo with an up-to-date binary release, and when I want to upgrade a machine, I just overwrite the mbr with zeros and reboot. The bios will then netboot, and the release is scripted to be noninteractive, to wipe the disks and re-install and then reboot the system when it's done. If I can't touch the mbr on the running system, then I won't be able to work this way anymore. Is there some other alternative? If I were running linux, I could write to /dev/nvram to update the bios cmos settings from the running system - does freebsd have a similar way to access the bios cmos settings? -Jason -------------------------------------------------------------------------- Freud himself was a bit of a cold fish, and one cannot avoid the suspicion that he was insufficiently fondled when he was an infant. -- Ashley Montagu -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) Comment: See https://private.idealab.com/public/jason/jason.gpg iD8DBQE/XPqeswXMWWtptckRAiZPAJwLRGlbcIPCEJGgnJzeCG2sZtXvxACfWMhz tBO8PAjJu6OOZrNP4S3zIps= =9wdb -----END PGP SIGNATURE-----
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