On 12/13/22 16:10, ToddAndMargo via users wrote:
On 12/13/22 15:28, Todd Zullinger wrote:
> Patrick O'Callaghan wrote:
>> However qcow also allows compression, sparse files,
>> encryption and copy-on-write snapshots (COW, hence the
>> name) [...]
>
> This is not meant to detract from your well-made point that
> the qcow2 format provides many benefits over raw filesystem
> images. :)
>
> Tangentially, the qemu-img(1) man page says of the
> encryption support:
>
> The use of encryption in qcow and qcow2 images is
> considered to be flawed by modern cryptography
> standards, suffering from a number of design problems:
>
> [...]
>
> Use of qcow / qcow2 encryption is thus strongly
> discouraged. Users are recommended to use an alternative
> encryption technology such as the Linux dm-crypt / LUKS
> system.
And if you can't back it up, it is ...
There are many ways to back it up. Just not "dump" without some extra
setup. I don't really see dump being a particularly good option for
backups though.