<div dir="auto">Boot any Linux distro, Fedora or Ubuntu from USB, and dd should work fine. <br><br><div data-smartmail="gmail_signature"><br>Sent from Galaxy S9+<br><br>Jerry Feldman <<a href="mailto:gaf.linux@gmail.com">gaf.linux@gmail.com</a>><br>Boston Linux and Unix<br><a href="http://www.blu.org">http://www.blu.org</a><br>PGP key id: 6F6BB6E7<br>PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6B B6E7<br> </div></div><br><div class="gmail_quote"><div dir="ltr">On Sat, Dec 1, 2018, 12:53 PM Bruce Labitt <<a href="mailto:bruce.labitt@myfairpoint.net">bruce.labitt@myfairpoint.net</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">It' apparent that one uses a variant of dd. What isn't apparent is how <br>
one goes about cloning one's primary disk (active). From searching it <br>
appears it is not recommended to use dd when the disk is active, either <br>
the source or the destination.<br>
<br>
I'm trying to clone my nearly full SSD with the OS (Ubuntu 18.04) to a <br>
new larger SSD.<br>
<br>
Is there a tiny linux I can boot into that I can run dd from? Or can I <br>
make the main disk ro? What do you suggest?<br>
<br>
I have backed up home. I really don't want to re-install the OS, since <br>
I have had troubles with gdm3 screwing up (different topic). (Black <br>
screen, no consoles)<br>
<br>
Recommendations/recipes on the cloning process sought.<br>
<br>
I was simply going to use<br>
<br>
# dd if=/dev/sda of=/dev/sdc bs=4096 conv=sync,noerror<br>
<br>
I've seen lots of comments about block size and optimal setting, but I'm <br>
not sure what is optimal if there are unknown (but few) source drive errors.<br>
<br>
Thanks,<br>
<br>
Bruce<br>
<br>
<br>
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