Sharing files between two Linux partitions

[Paul Smith]

Dear All

I have two Linux partitions on my computer (but in different hard
disks) and I would like to transfer some files from my Mandriva
partition to my Fedora Core 4 partition. I have tried

mount /dev/hdb1 /mandriva

and I can access to the Mandriva partition, but my files in my home
directory (in Mandriva) do not show up. I guess this problem is
related with my permissions. Is there a different way of achieving my
goal?

Thanks in advance,

Paul