On Fri, Mar 02, 2018 at 10:04:53AM +0100, donoban wrote:
> Hash: SHA256
> On 03/02/2018 08:38 AM, Robert Walz wrote:
> > [robert@dom0 ~]$ qvm-run --pass-io tempDebian 'cat 
> > "/home/user/meta.raw"' >
> > /var/lib/qubes/appvms/metasploitable/root.img I stopped the command
> > with Ctrl+C, because the root.img became bigger than the original
> > file's size. Then I got the following error messages.
> Could you post:
> [robert@dom0 ~]$ qvm-run --pass-io tempDebian 'ls -lsh
>  "/home/user/meta.raw"'
> Maybe your raw file is an sparse file. I'm not sure if cat would
> handle it fine.

I think you're right.
cat will churn the whole file, you need some alternative that is sparse
The best approach would be:
qvm-run --pass-io tempDebian 'tar -Scf - /home/user/meta.raw' > meta.tar
and then untar the resulting file
Almost anything else (dd, rsync etc) will have some overhead in my

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