how to create cd iso image in linux
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How To Create CD ISO Image In Linux
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How To Create CD ISO Image In Linux
Copyright © Walker 22 Sep 2007 17:12
Unlike Windows Vista or XP, Linux doesn’t need to separately
install Nero Burning ROM or CD image writer if you plan to create
an ISO image to backup a CD-ROM.
The standard dd command available in UNIX and Linux
distributions is good enough to do this job!
The dd command used to be a tiny program, which is about 32KB
in Red Hat Enterprise Linux! However, it’s certainly able to create
or dump an ISO image of a CD-ROM that can be burnt into a blank
CD!
You can also mount the ISO image directly in Linux and access the
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How To Create CD ISO Image In Linux
content without installing a CD emulator!
How to create a CD ISO image in Linux using the dd
command?
The Linux dd command performs binary data transfer (byte-by-
byte or block-by-block) with adjustable block sizes, from the first
to the last byte of data.
Don’t be scared by a Linux command, it’s really simple to
understand (the dd command syntax) and memorize it (in case
you’ll be tested by your interviewer, boss, etc). For example,
dd if=/dev/cdrom of=/tmp/CDImage.iso
where the if= indicates input file (the CD-ROM content) and of=
parameter is to specify the output file (the ISO image, i.e.
CDImage.iso) that dd command going to write.
In order to improve I/O performance, un-mount the CD-ROM
before executing dd command by preventing random access to the
mounted file system.
To verify if the CD-ROM is mounted or not, execute
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How To Create CD ISO Image In Linux
mount
To un-mount the mounted CD-ROM, execute
umount /dev/cdrom
Once the dd command complete successfully, you can execute this
command
eject
to eject the CD-ROM from the drive. The Linux eject command will
automatically un-mount the CD-ROM (if it’s mounted) before
sending eject disc command to the CD-ROM driver.
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How To Create CD ISO Image In Linux
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How To Create CD ISO Image In Linux
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