Re: [microblaze-uclinux] writeble filesystem - whitout flash

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Arthur,

A. Arthur Mohr wrote:

> I was thinking about doing that, but I thought maybe one of those
> filesystems could work on RAM only ...

Just about any filesystem (except JFFS2) will work on RAM - you create
an MTD partition backed by RAM, then mount the FS onto it.

The tricky part is initialising and populating that filesystem.  The
MicroBlaze kernel (and MTD mappings) have default handling for romfs and
cramfs, since they are very commonly used.

If you wanted to use something like ext2/3, then you can follow the cues
in the kernel to do so.  Or, try something like initrd.

The reason I suggest the approach of romfs + ext2 ramdisk on /etc/config
is that it's already supported and meets your needs as you have
described them.

Cheers,

John
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