Date: Wed, 07 Feb 2007 15:57:26 -0800 From: Nate Lawson <nate@root.org> To: John Baldwin <jhb@freebsd.org> Cc: Marcel Moolenaar <marcel@freebsd.org>, cvs-src@freebsd.org, cvs-all@freebsd.org, Poul-Henning Kamp <phk@phk.freebsd.dk>, src-committers@freebsd.org, Robert Watson <rwatson@freebsd.org> Subject: Re: cvs commit: src/sys/amd64/conf GENERIC src/sys/arm/conf EP80219 src/sys/conf NOTES files files.powerpc options src/sys/geom geom_apple.c geom_gpt.c src/sys/geom/part g_part.c g_part.h g_part_apm.c g_part_gpt.c g_part_if.m src/sys/i386/conf GENERIC ... Message-ID: <45CA6766.4010905@root.org> In-Reply-To: <200702071844.49532.jhb@freebsd.org> References: <2107.1170888121@critter.freebsd.dk> <20070207225651.T23167@fledge.watson.org> <45CA60F7.4000507@root.org> <200702071844.49532.jhb@freebsd.org>
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John Baldwin wrote: > On Wednesday 07 February 2007 18:29, Nate Lawson wrote: >> I assume phk@ is referring to the geom debug flags sysctl. The problem >> with that approach is that it disabled (and potentially left disabled if >> the flag wasn't cleared as the tool exits) all protection for the >> devnode behind the mounted drive. If something else was running at the >> same time, it could overwrite any data on the devnode. Or the fdisk >> tool could write anywhere in the device, not just the boot sector. > > No, fdisk and bsdlabel don't frob the sysctl, they talk directly to GEOM to > update the stuff as well using MBR-specific or BSD label-specific requests. Sorry, I was thinking of sysinstall. -- Nate
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