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Special Forums Hardware Filesystems, Disks and Memory How to duplicate a drive in Unix? Post 302137146 by HMIBarryLSalter on Sunday 23rd of September 2007 12:08:38 AM
Old 09-23-2007
Drive Letters

This should have been answered 3 years ago by an expert.. shame shame

I'm fresh off the truck but I understand the importance of this question!

First, you are probably use to DOS designations like C: and D: etc., however, in FreeBSD your floppy drive is always FD0 and your hard drives (not the CD) are labeled ad0 ad1 ad4 ad6 (or higher or in between) depending on how they are attached to the system. Attached? like on the IDE controller, on a SATA controller, SCSI and the position they are assigned in bios. For me, finding out that a RAID is usually ar0 was helpful.

So where are your drives??? Simple, do this! at the prompt, type in

ls /dev <enter>

This is going to list all the devices attached to your system and their partitions (? I think).. On my server, I find an ad4 and an ad6 so I would use (hopefully, I'm going to try it here soon):

dd if=/dev/ad4 of=/dev/ad6

This because I want to copy the drive attached to the first controller to the second controller and I DO NOT care if it copies blocks marked as bad so long as the second drive doesn't "really" have bad sectors, it should be a perfect backup for what i want and easier than all the config and slicing ect.

Barry L. Salter
 

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BURN(1) 							       Burn								   BURN(1)

NAME
burn - record from various sources to optical media (CD, DVD) SYNOPSIS
burn MAIN_MODE [OPTIONS]... [FILE/S]... burn --help DESCRIPTION
CD-writing program/script. Features Data-CD, Audio-CD, Copy on the fly, Iso-CD. CONFIGURATION
Configuration files for burn are: ~/.burnrc or /etc/burn.conf. You can edit them to change values. If you don't have these files you can: 1. use burn-configure utility 2. take the configuration template, edit and copy it as ~/.burnrc or /etc/burn.conf MAIN MODES
-D, --data-cd To create Data-CD -I, --iso-cd To create ISO-CD -C, --copy-cd To copy CDs -A, --audio-cd To create an audio CD from WAV, MP3 and ogg files EXAMPLES
# burn -D -p /etc/ Creates a CD with /etc/ contents. (you will find files and directories contained in /etc in CD's root.) # burn -D -p /home/bigpaul/video/summer_2003/spain.tar.gz Creates a CD with spain.tar.gz in CD's root # burn -D -r /etc/ Creates a CD containing the whole /etc/ directory. (-r preserves path) # burn -D -c /mail_2003 /home/bigpaul/Mail -p /boot/vmli* Creates a CD containing the whole /home/bigpaul/Mail renamed into /mail_2003. (-c changes path name). This command also adds in CD's root every vmli* file in /boot/ directory # burn -I -n image.iso Burns image.iso # burn -C Copy CDs (disk at once). # burn -A -a *.wav Creates an Audio CD. Tracks come from wav files # burn -A -a *.mp3 Creates an Audio CD. Tracks come from mp3 files # burn -A -a *.ogg Creates an Audio CD. Tracks come from Ogg Vorbis files # burn -A -a *.mp3 file.ogg track01.wav Creates an Audio CD preserving input order. In this example the first audio tracks will come from mp3 files, than we will find the one from file.ogg and finally the one from track01.wav GENERAL OPTIONS
-s, --simulate to perform a burn simulation DATA-CD OPTIONS -p, --path add file/s or path's content to CD-ROM's root. e.g.: -p /cvs/myproj/. In this example we will find CD-ROM's root filled with /cvs/myproj/ contents, but no /cvs/myproj/ will be created -r, --preserve-path add file/s or path's content to CD-ROM preserving original path. e.g.: -r /cvs/myproj/. In this example we will find /cvs/myproj/ in CD-ROM's root -x, --exclude-path every file or directory matching this string will not be included -c, --change-path old_path will be named new_path in CD-ROM. e.g.: -c /my_home/2004_Jan/ /home/bigpaul/. Thus /home/bigpaul/ will be named /my_home/2004_Jan/ in CD-ROM. -l, --follow-symlink this option allows burn to follow symbolic link directories -m, --multisession this option allows multisession CDs ISO-CD OPTIONS -n, --name image name AUDIO-CD OPTIONS -a, --audio-file mp3, ogg or wav file/s AUTHOR
Ben Finney <ben+python@benfinney.id.au>, Gaetano Paolone <bigpaul@hacknight.org> COPYRIGHT
This is free software: you may copy, modify, and/or distribute this work under the terms of the GNU General Public License, version 2 or later as published by the Free Software Foundation. No warranty expressed or implied. See the source for details. 2009-07-22 BURN(1)
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