<html><head></head><body>Rhel 6. They like living on the bleeding edge<br><br><br>of no security updates. <br><br><div class="gmail_quote">On July 17, 2021 9:53:37 AM EDT, Raj Wurttemberg via Ale <ale@ale.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr"><br><div>Now that COVID is slowly going away, some of our customers are now looking to do some OS upgrades, mostly RHEL 6 to RHEL 8 and SuSE 12 to SuSE 15. We have been using Relax and Recover (ReaR) (<a href="https://access.redhat.com/solutions/2115051">https://access.redhat.com/solutions/2115051</a>) which dumps the live system to a bootable ISO. No outage is required.</div><div><br></div><div>We take the ISO, boot it on a temp server, upgrade the OS there and on upgrade day, reverse the process on the day that we get an outage from the customer. The ReaR process works ok, but if any of the file systems are separated like /usr, or, /var, etc... like you would normally find on a system, ReaR runs into difficulties. </div><div><br></div><div>I did some Google-ing for other tools that can create a live clone of a server. I did find two tools that look promising... <br><br>- doClone : <a href="http://doclone.nongnu.org/">http://doclone.nongnu.org/</a></div><div>- MondoRescue : <a href="http://www.mondorescue.org/">http://www.mondorescue.org/</a></div><div><br></div><div>Besides 'dd' I was curious what live cloning software you all have tried.</div><div><br></div><div>/Raj W.</div></div>
</blockquote></div><br>-- <br>Computers amplify human error<br>Super computers are really cool</body></html>