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Discussion in 'OS X El Capitan (10.11)' started by mrgreeneyes, Oct 25, 2015.
If I boot up into safe mode can I plug in an external drive and back up my data?
I have not tried it, but it might depend on the external drive and how you intend to back up your data. My best advice is to try it and see what happens. Here is a link to what Apple has to say about Safe mode:
One of the things the document mentions is, "Some USB, FireWire and Thunderbolt devices might not be available".
Here is a Apple forum discussing the issue that I found with Google: