[issue1839] Segfault, NULL pointer dereference in mount_mfs from LiveCD.

[elekktretterr at exemail.com.au]

>
> Alex Hornung <ahornung at gmail.com> added the comment:
>
> I suggest we actually move away from mfs and use tmpfs instead. This would
> involve (at least) the following steps:
> - Change the fstab for the nrelease magic to use tmpfs, but keeping the
> same
> options in use (i.e. size [note that mfs' size is in sectors, iirc])
> - Probably expand mount_tmpfs to use FSCopy & FSPaste with an optional
> parameter
> '-C', as with mount_mfs, as long as we don't have a working unionfs.
> FSCopy and
> FSPaste can be found in newfs/fscopy.c. An alternative to this would be
> finally
> fixing unionfs, but that's a more complicated issue.
> - Test a few installations to see if everything still works as expected
> with the
> new tmpfs magic. This would ideally include both x86 and x86_64.
>
> Cheers,
> Alex Hornung

This might be slightly inaccurate, but is it possible currently, when
using LiveCD, to write to the memory filesystem? (either mfs or tmpfs). It
would be great. I often had a need in the past to create temporary files.

Petr