Linux image solution

Corey Edwards tensai at zmonkey.org
Wed Feb 2 14:02:06 MST 2011


On 02/02/2011 01:59 PM, Stuart Jansen wrote:
> On Wed, 2011-02-02 at 13:42 -0700, Michael Peterson wrote:
>> On Wed, Feb 2, 2011 at 1:38 PM, Derek Cox <dcox at aquaveo.com> wrote:
>>> Does anyone know of a
>>> free imaging software that can backup a Linux machine without requiring a
>>> reboot?
>>
>> You can use dd to copy the contents of a device. Syntax is:
>>
>> dd if=/dev/sda1 of=~/image
>>
>> Where /dev/sd** where /dev/sd** is the drive and partition you want to
>> copy and ~/image is the place where you want to put the image.
> 
> Dude! Very bad idea!

Agreed.

> Only safe for a cold backup after booting off DVD.

Or if you freeze the filesystem with LVM or XFS.

To the OP, it would be useful to have more details about what you're
trying to accomplish. There are a myriad of ways to backup a system
depending on what your goal is.

Corey

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