Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!husc6!faulkner From: faulkner@jmullins.harvard.edu (Don Faulkner) Newsgroups: comp.unix.microport Subject: Re: Backups of Distibution Floppies Message-ID: Date: 24 May 89 15:54:55 GMT References: <752@mccc.UUCP> <241@vector.Dallas.TX.US> <478@loft386.UUCP> Sender: news@husc6.harvard.edu Distribution: usa Organization: Harvard University Lines: 25 In-reply-to: dpi@loft386.UUCP's message of 21 May 89 20:05:16 GMT In article <478@loft386.UUCP> dpi@loft386.UUCP (Doug Ingraham) writes: ... Doug> dd if=/dev/rfd0 of=disk1 bs=30k Doug> Put preformatted destination diskette in drive. Doug> dd if=disk1 of=/dev/rfd0 bs=30k Doug> remove destination diskette. ... Doug> This is not as fast as it would be under DOS because the UN*X vendors Doug> don't seem to care how fast the floppy driver operates. dd's default block size is 512; might get an order of magnitude increase in speed by using "bs=100b" or something sane... -- Don Faulkner Building 1, Room 803 Harvard University, School of Public Health 665 Huntington Avenue Boston, MA 02115 ARPA: faulkner%jmullins@harvard.harvard.edu BITNET: faulkner@harvard Telephone: (617) 732-2297