CM11 snapshot install aborted with "no space left"

Start Gingerbread 2.3.3
Root DONE (with Kingo)
CWM DONE

Boot message:
can`t access /system/csc/DBT/system (?)
Successfully applied multi CSC

wipe data/factory rest DONE
wipe cache DONE
update from SD card SELECTED
cm-11-20150626-snapshot ...... SELECTED
Errormessage:
E: short write of /tmp/sideload/package.zip (no space left on device)

Any suggestion ?
Thanks