Wow after further reading: dd is just not suitable for

it takes too much time on huge disks. This looks like a non-sensical strategy to me. You pay with I/O and time. There must be a better way. Maybe there is a way to create an img file from cloned partitions.

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19.04.2022

Muflone

Misan
it takes too much time on huge disks. This looks l...

To know if the space is needed requires knowing the file system in them, hence clone the file systems

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19.04.2022

Martin Rys

Misan
it takes too much time on huge disks. This looks l...

Guess the filesize, create an image, create btrfs fs with compression (for smaller file size) and rsync the data to it

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19.04.2022

Misan Автор вопроса

Martin Rys
Guess the filesize, create an image, create btrfs ...

Sounds similar to this solution: https://serverfault.com/a/785995

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19.04.2022

Arun Bahl

What about clonezilla? I think it can do that

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19.04.2022

Alexander Gnatyuk

Misan
it takes too much time on huge disks. This looks l...

Lots of options - zero the unused space and use dd conv=sparse - mount the partition and copy the files some place else (e.g. a loop device formatted with some FS) - tell the file system on your partition to shrink itself as much as it can and copy the first N bytes of that partition

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20.04.2022

#!/usr/bin/env h@x #YachaGang 🦊

Clonezilla?

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20.04.2022

Muflone · Accepted Answer

Muflone

Copying a disk means copying the data, regardless the file system in them There are a lot of tools to do disk images. Your request is not valid, you don't want to copy the unused/free space

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19.04.2022

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Wow after further reading: dd is just not suitable for

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