Makin' backups -- questions
dpchrist at holgerdanske.com
Fri Jun 12 19:23:54 UTC 2020
On 2020-06-12 03:37, Ronald F. Guilmette wrote:
> In message <ef3ebee8-a3f1-8caf-040d-d9483afc5c15 at holgerdanske.com>,
> David Christensen <dpchrist at holgerdanske.com> wrote:
>> The simplest, but least efficient, backup method I have found for system
>> drives is to copy the device raw sectors to a file with dd(1)
> Too slow.
Fast enough for me:
# time dev2img ...
> rsync allows me to just update my backup drives incrementally, which is
> WAY faster. (My server has 3TB live. DD'ing all of that would take all
>> 3. I keep my system images "small" ...
>> 2. I use MBR partitioning, to avoid problems with the GPT backup
>> partition table when the source and target device sizes differ.
> You're going to have to explain that one to me. What are these "problems"
> of what you speak?
See "Secondary GPT":
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