Date: Thu, 11 Dec 2003 12:24:14 -0800 From: "Drew Tomlinson" <drew@mykitchentable.net> To: "Dru" <dlavigne6@sympatico.ca> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: dd of mounted filesystem Message-ID: <00ec01c3c024$bef6d930$6e2a6ba5@lc.ca.gov> References: <20031211145245.D637@genisis>
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----- Original Message ----- From: "Dru" <dlavigne6@sympatico.ca> Sent: Thursday, December 11, 2003 11:54 AM > Can anyone describe or point me to resources explaining why it is > dangerous to dd a filesystem while it is mounted? Is it still considered > to be dangerous if the system is first dropped down to single-user mode? I'm guessing between this thread and your "unmounting /" thread that you're attempting to duplicate your root drive? I just tried this in single user mode a few days ago with dd and it didn't work. The resulting file system was "dirty" so I used 'fsck' to clean it. The results were a complete unusable mess. I tried another method described in my thread "Trouble Adding New Boot Drive" but couldn't quite get it right. However I think I'm overlooking something quite simple. You might like to look over the steps I took and see if they make sense. Then if you get it to work, I'd be most appreciative if you'd let me know what I missed. I'll send the message to you if you want. Good Luck! Drew
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