Subject: kern/14026: dd gets confused on cd-rom devices
To: None <gnats-bugs@gnats.netbsd.org>
From: seebs <seebs@ged.plethora.net>
List: netbsd-bugs
Date: 09/20/2001 14:44:29
>Number:         14026
>Category:       kern
>Synopsis:       dd is confused by cd devices
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Sep 20 12:48:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     seebs
>Release:        9/15 or so
>Organization:
	
>Environment:
System: NetBSD ged.plethora.net 1.5X NetBSD 1.5X (GED) #0: Sat Sep 15 20:51:52 CDT 2001 seebs@ged.plethora.net:/usr/src/sys/arch/i386/compile/GED i386
Architecture: i386
Machine: i386
>Description:
	dd if=/dev/cd0a of=temp.iso
	produces a file 4x the size of a CD-ROM image, which has oddly
	repetitive patterns.
>How-To-Repeat:
	See above.
>Fix:
	I am assuming the kernel is confused in some way by the raw device
	having a block size other than 512?
>Release-Note:
>Audit-Trail:
>Unformatted: