On 1/20/2017 12:53 PM, Kirk Wolf wrote:
Is this issue not analogous to "I made changes on my z/OS system, and now
some critical software product is broken?"
In that case, you would use SMP/E or volume backups to go back. Isn't
linux essentially the same (only different)?
For my Linux desktop (Ubuntu), with the package manager (synaptic / apt) it
is pretty easy to roll back changes (like a kernel version). I also keep
an unmounted mirror disk for my OS disk and use a cron job to rsych to it
automatically on the weekend. Rolling back the entire OS volume takes
about 5 minutes using rsync (after booting from a thumb drive).
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Two words - Clonezilla. Run it before major Linux updates, restore if
zPDT gags.
Regards,
Tom Conley
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