On 13/04/18 15:32, Lange, Markus wrote:
> Hi,
>
> You can simply boot a live system to create your partition layout and copy it
> over the existing system with rsync. Once your system is copied, you will need
> to customize all hardware-dependent configuration files such as {crypt,fs}tab,
> network configurations, bootloader and so on depending on your setup.
>
> Don't forget to install the bootloader afterwards!
>
> You can also install a minimal system and use a live system to copy the files
> from the existing server to the new one (e.g. with rsync -a). This way you do
> not have to create the partition layout and bootloader manually.
>
> Using clonezilla would only replace the part of copying the files and installing
> the bootloader, all other settings still have to be made.
Actually, I don't believe that's quite true. I've "cloned" to dissimilar
hardware in the same manner before, and found that there was special
handling of various hardware dependent config files, so that I didn't
get set-up for the "wrong" type.
- Toralf
> Rsync should be much
> faster for data transfer.
>
> Best regards,
> - Markus
> On Fr, 2018-04-13 at 14:46 +0200, Toralf Lund wrote:
>> Hi,
>>
>> I just found myself having to set up a new CentOS 6 system with a nearly
>> identical configuration to an existing host, so I thought I would just
>>
>> 1. Do a minimal install to set up partitions etc. on the new system.
>> 2. Create an image of the existing system using Clonezilla
>> (https://urldefense.proofpoint.com/v2/url?u=http-3A__www.clonezilla.org&d=DwIGaQ&c=KV_I7O14pmwRcmAVyJ1eg4Jwb8Y2JAxuL5YgMGHpjcQ&r=Q0oqxzgUp3xCCIiJDwS-RbNDndQ-KZDhj8wwveNoqU4&m=LuCuhEh29vlP9l-Vakjf6lKeZVlmfp_AaqPakYDOV1c&s=7DzBbYmBU7fUsxgvVL-59HG_y2uuwR1jxcbXX5skfGM&e= )
>> 3. Run a Clonezilla restore on the new system.
>>
>> - as I though it would be a lot simpler than replicating the exact
>> package selection, installing the same users, doing the same manual
>> config edits (which are required) etc.
>>
>> It turns out that it wasn't quite as easy, though. The problem is that
>> the system use LVM2 volumes for the filesystems, and the new host has a
>> slightly smaller disk than the other, and Clonezilla seems unable to
>> restore to a volume that's smaller than the one that was cloned - even
>> if the actual data fits.
>>
>> I guess I could temporarily reduce the LVM volume sizes on the existing
>> units and clone again, but I'd rather not if I can avoid it. Just
>> copying file-by-file could be an option, too, but I somehow feel less
>> comfortable doing that than the above; there is something about the way
>> I could end up with a mixture of my "minimal install" and the "cloned"
>> data, I suppose.
>>
>> Does anyone have any other ideas about how I might achieve what I want?
>>
>> - Toralf
>>
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