Re: [RFC 0/7] [RFC] cramfs: fake write support

[David Newall]

Arnd Bergmann wrote:
> On Saturday 31 May 2008, David Newall wrote:
>   
>> I prefer the technique of union of a tmpfs over some other fs
>>     
>
> You're right in principle, but unfortunately there is to date no working
> implementation of union mounts. Giving users the option of using an
> existing file system with a few tweaks can only be better than than
> forcing them to use hacks like unionfs.

I've not used unionfs (nor aufs) so I'm not aware of its foibles, but I
can say that it's the right kind of solution.  Rather than spend effort
implementing write support for read-only filesystems, why not put your
time into fixing whatever you see wrong with one or both of those?
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