It is very interesting to create two partitions, I have 85 MB out of a total of 128. I’ve read the manual a little bit but it doesn’t explain in detail how to do it and I would surely mess up, I’ll open a post to get some advice.
Simply repartition and set 2 partitions (it reboots) then copy part0 to part1
CAPsMAN in ROS 6.49.2 (and even 7.X.X is not usable) is a catastrophy. Regardless if I use 6.49.2, 7.0.5, 7.1.1, 7.1.2 or 7.2RCX, in every ROS version I found a full hand of bugs.
I´ve configured all from scratch (no config update from ROS 6.X), but nothing worked.
The errors are:
- no DHCP leases
- no traffic from or to the CAPs after a few minutes
- no traffic from or to the CAPsMAN after a few minutes
- unregulary disconnects from the WLAN every 10-60 sec. (with a bunch of devices)
The config was not really complicate, only 2 vLANS and 5 CAPs with auto-Provisioning. DHCP for LAN is served from a Windows Server, the GUEST DHCP comes from the MT router.
After netinstall 6.48.6 and recreate the config from scratch everything is working again without problems.
(The config within ROS 6 and 7 was exactly the same.)
It was a really nightmare weekend… 
New version 6.49.3 has been released in stable RouterOS channel:
http://forum.mikrotik.com/t/v6-49-3-stable-is-released/155840/1