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Things look quiet here. But I've been doing a lot of blogging at
dan.langille.org because I prefer WordPress now.
Not all my posts there are FreeBSD related.
I am in the midst of migrating The FreeBSD Diary over to WordPress
(and you can read about that here).
Once the migration is completed, I'll move the FreeBSD posts into the
new FreeBSD Diary website.
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drive to drive backup
8 May 2000
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Right after I finished finishing adding a new
drive, I had to copy the contents of an existing drive to that new drive. This
was pretty easy. The more I learn about tar, the more I like it. |
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tar is your friend
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First, I mounted the destination drive as /backup:
# mount /dev/wd1c /backup
I wanted to backup all of wd0. This consists of /, /usr,
and /var.
xymix (someone on IRC) told me about these two methods:
So here's what I did for the three slices I wanted to backup:
(cd / ; tar -cvlf - .) | (cd /backup/ ; tar xpf -)
(cd /var ; tar -cvlf - .) | (cd /backup/var ; tar xpf -)
(cd /usr ; tar -cvlf - .) | (cd /backup/usr ; tar xpf -)
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So why did you use tar?
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| The reason I used tar is I like it. I could have used dump,
but didn't. I also think cp -Rp is an option here. As is dd.
You might also want to read Swapping boot drives around.
But with as something as important as backup, I'd prefer to stick to things like tar,
or dump which were made for backups. I'm sure the other tools would work
just fine, but I'm not as familiar with them. I wouldn't want to find out later that
"oooh so *that's* why I shouldn't use cp".... |
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