Re: UI for partition editor (Create Custom Layout)

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On Wed, 2011-10-26 at 18:44 -0700, John Reiser wrote:
> On 10/26/2011 05:25 PM, David Lehman wrote:
> 
> > It sounds like the basic reason you have this problem of knowing which
> > filesystems are which stems from that fact that you create the
> > partitions outside of anaconda. Do you have some requirements for
> > partitioning that anaconda cannot satisfy?
> 
> Absolute control over where it goes (down to the sector).

If you just feel the need to have total control, have at it. I do just
about everything I can on the command line so I can control things, too.

> An option to label the filesystem.
> 
> I'll take suggestions, but I require the capability to override everything.
> Also, from time to time a new system will overwrite an old one.
> The last customer for the old partition finally upgraded, and
> new users of systems of that vintage are deemed unlikely.
> Locating the old filesystem+partition by label is the easiest method.
> I also take screenshots of gparted.
> 
> > This is certainly something we will consider. We do want to discourage
> > the use of labels as the primary (/etc/fstab, /etc/crypttab, &c) means
> > of identifying filesystems since they are not guaranteed to be unique,
> 
> Filesystem UUIDs are not guaranteed to be unique, either, and duplicates
> _do_ happen.  The obvious method of cloning a filesystem (/bin/dd)
> duplicates the "UUID", too.  I've done it once by accident, and a
> few times on purpose :-)

Sure, but the only way to do that is to do a dd or similar. With labels,
there are plenty of ways to end up with duplicates, many of which are
nowhere near as unreasonable as copying a filesystem without updating
the UUID of one of the copies.
> 
> 
> > but that does not necessarily preclude an interface for specifying
> > and/or viewing labels as a convenience.
> > 
> > FWIW kickstart already allows both arbitrary identifiers for existing
> > devices/filesystems (include LABEL=) and an option to specify a label
> > when creating a filesystem (--label=).
> 
> In general I don't understand why the graphical parts of the installer
> aren't just an app whose output is a kickstart file, and the actual
> install is just an execve() with the kickstart file as its only input.
> 

You are not the only one.


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