Simply mount /dev/disk2s1 /foo
Where /foo
is an empty directory where you want to access the card. The normal mount point for disks on a mac is within /Volumes
but since it isn't auto-mounting, you will need to create a directory somewhere. Don't mount it directly to /Volumes
or you won't be able to access your HD, including your OS. You could mount it to your home directory even, below /mnt represents a directory that you've created, in this example, it's in your home directory:
$ sudo mkdir ~/mnt
$ sudo mount -t msdos /dev/disk2s1 ~/mnt
$ cd ~/mnt
(of course if you are in your home directory you can leave out the ~/
if you want.)
You can also use the diskutil
command. man diskutil
to learn more about it. Are you running the same version of OS X on both machines? There are reported issues with FAT32 on Yosemite.