It failed again

.
Do you think / is too small ?
Before I started.
df
Filesystem Size Used Avail Use% Mounted on
/dev/sdb1 11G 4.0G 6.5G 38% /
/dev/sdb6 51G 22G 30G 42% /home
After I did the mylivecd.
df
Filesystem Size Used Avail Use% Mounted on
/dev/sdb1 11G 8.3G 2.2G 80% /
/dev/sdb6 51G 22G 30G 42% /home
If it is I will try with GParted to move a bit more over from /home.
This is the output.
Creating initrd: [100.00% 00:00:13/00:00:13]
Setting filesystem parameters: [100.00% 00:01:07/00:01:07]
Creating compressed image: [100.00% 07:16:50/07:16:50]
Creating isolinux boot: [100.00% 00:00:00/00:00:00]
Creating final iso: [100.00% 00:00:00/00:00:00]
ls: cannot access kitchen1262011.iso: No such file or directory
Embedding MD5 checksum:
[ ]Argument "" isn't numeric in division (/) at /usr/sbin/mylivecd line 278. [ 0.00% 00:00:00/00:00:00]Error - Unable to open file kitchen1262011.iso
Illegal division by zero at /usr/sbin/mylivecd line 296.