Date: Mon, 07 Feb 2000 14:15:43 -0500 From: Peter Schwenk <schwenk@math.udel.edu> To: Jerry Lei <tylei@hotmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: about dd Message-ID: <389F19DF.F61C025A@math.udel.edu> References: <20000207183828.21660.qmail@hotmail.com>
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This command was used to wipe the partition table so a new one could be made. The size of the disk doesn't impact the size of the partition table, so 100 is still fine. The table was wiped because an existing one can confuse the disklabel program (or at least confuse the person using the disklabel program) when you are using the 'auto' feature. Jerry Lei wrote: > Hi, I read the low level format of Hard Disk in the FreeBSD installation > guide. > The author use > dd if=/dev/zero of=/dev/da1 count=100 > > I have a question, why count=100? I use man dd, the manual says that count=n > means Copy only n input blocks. If I use HD whose size more than the example > one in the book. Do I still use count=100? > > Thanks, guys and gals > > Lei > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- PETER SCHWENK | UNIX System Administrator Department of Mathematical Sciences | University of Delaware schwenk@math.udel.edu | (302)831-0437 <-NEW!!! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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