FG

Is it possible to dd the current disk you are booted off?

Fresh3 days ago
Mar 15, 202646773 views
Confidence Score0%
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Problem

I have a copy of FreeNAS running off a live USB disk. And I'd like to make a backup of it. While trying to avoid breaking a perfectly working system, would I be able to the disk while the OS is running? Or would I have to shut the machine down and run off another machine?

Error Output

dd

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Fix for: Is it possible to dd the current disk you are booted off?

Low Risk

You can run on the running disk. Doing so when there are heavy changes to the disk structure should be avoided. Also you should the destination once you are done. The quieter the system is during the backup the better. Running a cold backup (file sy…

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