File system issues

[Dominic Fandrey]

On 26/10/2014 07:36, Ian Smith wrote:
> On Sat, 25 Oct 2014 12:11:16 -0700, Lyndon Nerenberg wrote:
>  > On Oct 25, 2014, at 11:36 AM, Kurt Jaeger <lists at opsec.eu> wrote:
>  > 
>  > > I always disable journaling, because I had many failures with that
>  > > in the past:
>  > > 
>  > > tunefs -j disable <partition>
>  > 
>  > I turn it off because you cannot snapshot a journaled filesystem, 
>  > which breaks live dumps.
>  > 
>  > It would be helpful if there was a way in the installer to toggle the 
>  > default setting for 'journaled' before carving out the filesystems.  
>  > It's moderately annoying to have to go through the option settings 
>  > for all the filesystems to turn this off.
> 
> And if you do go back into the options settings for a filesystem, the 
> options you have changed, like turning off journaling, have been (or at 
> least, appear to have been) reset to defaults, so you can't just check 
> what you've already set, but have to start again.
> 
> What I _really_ miss from sysinstall(8) is the ability to toggle the 
> newfs flag.  What you need to do now if you wish to preserve an existing 
> filesystem - quite commonly /home - is very deliberately NOT select that 
> filesystem from those detected, finish the install then manually, later, 
> readd that fs to /etc/fstab AND remove the created symlink from /home to 
> /usr/home, recreate /home as a directory, AFTER moving created dotfiles 
> if you forgot to NOT create a non-root user during install.  Relatively 
> new users wouldn't have the slightest clue about needing to do that.
> 
> But then, the general expectation that new users will want a linux-style 
> single / directory - sure, fine for VM use - cruels the potential to use 
> dump and restore anyway.  It's a bit sad that this is still outstanding.

You can use dump from anywhere in the file system by way of nullfs
mounts.

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