<p dir="ltr">Assuming that you have NOTHING on the drive that you care about, I would remove the factory partitioning and create a new GPT table with parted. </p>
<p dir="ltr">Then, format that as ext4. </p>
<div class="gmail_quote">On Sep 3, 2015 3:17 PM, "Mike Miller" <<a href="mailto:mbmiller%2Bl@gmail.com">mbmiller+l@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">How to format?<br>
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I have a couple of Linux boxes that I would like to regularly backup to a 5 TB external drive. It seems like it would be a good idea to format that drive with ext4. Can I just do that with gparted? The drive comes with NTFS format. Are there any issues I should know about?<br>
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Which directories to back up?<br>
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What really needs to be backed up? I guess if the system totally failed I'd install Linux (Ubuntu) again. Of course /home is needed, but /usr/local and /opt often have programs I've installed and /etc will have a bunch of settings. I guess /var can have some important stuff. Are crontabs stored in /var?<br>
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Which software to use for backup?<br>
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I guess I want only to have in backup what is on the originating drive. So if I have deleted a file, I want it to be deleted on the backup drive, too. I assume rsync can do this. Would this be correct?:<br>
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rsync -av --update --delete /home /usr/local /etc /var /opt /media/me/back<br>
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TIA!<br>
<br>
Mike<br>
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