Re: [gentoo-user] Fun with mdadm (Software RAID)

[Frank Steinmetzger <Warp_7@gmx.de>]

Am Fri, Dec 20, 2024 at 11:02:55PM +0100 schrieb karl@aspodata.se:
> Alan Mackenzie:
> ...
> > By the way, do you know an easy way for copying an entire filesystem,
> > such as the root system, but without copying other systems mounted in
> > it?  I tried for some while with rsync and various combinations of
> > find's and xargs's, and in the end booted up into the rescue disc to do
> > it.  I shouldn't have to do that.
> 
> rsync as other people have suggested.
> There is also
>  cp -x
>  dump/restore
>  find -xdev
> etc.
> 
> You can also do it by accessing the /dev/-file like
> dd if=source of=dest (cp works here also but dd is more the norm).
> 
> ///
> 
> When something is mounted on a mount point, the files below the
> mount point is hidden and the mounted filessystem will be available
> instead. Do you want to copy thoose hidden files also ?

To circumnavigate this, I usually bind-mount the filesystem to another 
directory first. I usually only do this when I’m dealing with /, as my FS 
structure is not complex:

mount --bind / /mnt/bind
rsync -axAHX /mnt/bind/ /path/to/destination/
(-x is not needed then, but it’s part of muscle memory)

-- 
Grüße | Greetings | Salut | Qapla’
Please do not share anything from, with or about me on any social network.

Keyboard not connected, press F1 to continue.