make release failed

One more time I request for the help:

When I try to *make release* I'm getting this error:

sh -e /usr/src/release/scripts/doFS.sh bsdlabel "" /R/stage/floppies/mfsroot.flp  /R/stage /mnt 1440 /R/stage/mfsroot/mfsroot.gz  80000 fd1440
+ export BLOCKSIZE=512
+ DISKLABEL=bsdlabel
+ shift
+ MACHINE=
+ shift
+ FSIMG=/R/stage/floppies/mfsroot.flp
+ shift
+ RD=/R/stage
+ shift
+ MNT=/mnt
+ shift
+ FSSIZE=1440
+ shift
+ FSPROTO=/R/stage/mfsroot/mfsroot.gz
+ shift
+ FSINODE=80000
+ shift
+ FSLABEL=fd1440
+ shift
+ [ 1440 -eq 0 -a fd1440 = auto ]
+ deadlock=20
+ uname -r
+ [ -f /R/stage/trees/base/boot/boot ]
+ BOOT=-B -b /R/stage/trees/base/boot/boot
+ dofs_md
+ true
+ rm -f /R/stage/floppies/mfsroot.flp
+ [ x != x ]
+ dd of=/R/stage/floppies/mfsroot.flp if=/dev/zero count=1440 bs=1k
+ mdconfig -a -t vnode -f /R/stage/floppies/mfsroot.flp
+ MDDEVICE=md0
+ [ ! -c /dev/md0 ]
+ trap umount /mnt; mdconfig -d -u md0 EXIT
+ bsdlabel -w -B -b /R/stage/trees/base/boot/boot md0 fd1440
+ newfs -O1 -i 80000 -o space -m 0 /dev/md0c
fstab: /etc/fstab:0: No such file or directory
/dev/md0c: 1.4MB (2880 sectors) block size 4096, fragment size 512
	using 1 cylinder groups of 1.41MB, 360 blks, 32 inodes.
super-block backups (for fsck -b #) at:
 32
+ mount /dev/md0c /mnt
+ [ -d /R/stage/mfsroot/mfsroot.gz ]
+ cp -p /R/stage/mfsroot/mfsroot.gz /mnt
/mnt: write failed, filesystem is full
cp: /mnt/mfsroot.gz: No space left on device
+ umount /mnt
+ mdconfig -d -u md0
*** Error code 1

Stop in /usr/src/release.
*** Error code 1

Stop in /usr/src/release.
+ umount /dev
*** Error code 1

Stop in /usr/src/release.