JFFs2 usage questions

[Vikram Mehta]

Hi,

Now I can mount  using  jffs2.
and my directory does show the contents.
I have a few questions on the usage of JFFs2

1.)  I cannot mkdir into the folder. I mount dev/mtdblock2 on  /mnt.
If I do mkdir ,  the message comes
no space left on device

2.) if I reboot the system /mnt is left as empty.

3.) How can I provide that 1or 2 of my partions are readonly. That is they
are not erased

4.) I want that after booting, one partition is created as Jffs2. ( I can
add the commands in rc) and I can write on it like on do on /var which is
mounted on RAM

Regards
Vikram