Date: Thu, 19 Feb 2004 15:28:23 -0500 (EST) From: "Aaron Peterson" <aaron@alpete.com> To: ticso@cicely.de Cc: Aaron Peterson <aaron@alpete.com> Subject: Re: bcwipe won't wipe a block device... Message-ID: <29352.162.114.211.143.1077222503.squirrel@mail.alpete.com> In-Reply-To: <20040219201520.GB44313@cicely12.cicely.de> References: <9615.162.114.211.143.1077213472.squirrel@mail.alpete.com> <20040219201520.GB44313@cicely12.cicely.de>
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> On Thu, Feb 19, 2004 at 12:57:52PM -0500, Aaron Peterson wrote: >> I don't know if this is a problem specific to CURRENT or not, but bcwipe >> seems to do the right thing when wiping files. however, when using the >> -b >> option to wipe an entire block device, there is an "Invalid Argument" >> error, and I don't understand exactly why... >> >> fbsd52# bcwipe -bvmd /dev/da0 >> Wipe /dev/da0 (y/[n]/a)?a >> Wiping device /dev/da0 >> Writing to /dev/da0: Invalid argument >> fbsd52# bcwipe -bvm3 /dev/fd0 >> Wipe /dev/fd0 (y/[n]/a)?a >> Wiping device /dev/fd0 >> Writing to /dev/fd0: Invalid argument >> fbsd52# > Why - if the device is there you have a node in /dev. > If you don't have the device then there is no node. > See devfs(8) I understand how devfs works, and i don't think that is the problem, although perhaps I'm misunderstanding what you mean. dd if=/dev/urandom of=/dev/da0 dd if=/dev/urandom of=/dev/fd0 these devices and nodes all exist, and these dd commands do as expected and take off writing random data to the raw device. However i get the errors mentioned previously when i try to use bcwipe on the same drives. I would like to find a way to make bcwipe work. any suggestions about what is causing this problem?
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