Did you installed acl package?

if manager
I solved the problem the problem is the check-pointing acl / and as I have partitions for separdas and did not put acl to the / tmp error gives the solution to locate where the search and change it to the /
thanks for asking.
I have more questions tomorrow and I have to sleep.
greetings from Cuba. and remember I'm not good in English

bash iRedMail.sh
< ERROR > Your system doesn't support advance file system access control list (acl). Please setup acl support in /etc/fstab before we go further.
Reference:

* Setup acl on Ubuntu:
  http://code.google.com/p/iredmail/wiki/ … package(s)

* Setup acl on Debian:
  http://code.google.com/p/iredmail/wiki/ … y_packages

mail:~/iRedMail-0.5.0#

   
Here is the fstab file

cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/sda5       /               ext3    acl,errors=remount-ro 0       1
/dev/sda1       /boot           ext3    defaults        0       2
/dev/sda6       /home           ext3    defaults        0       2
/dev/sda7       /tmp            ext3    defaults        0       2
/dev/sda8       /var            ext3    defaults        0       2
/dev/sda2       none            swap    sw              0       0
/dev/hdc        /media/cdrom0   udf,iso9660 user,noauto     0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto  0       0
mail:~#

the debian version is 5.0.3
   
acl as you see I've added the hda partition has to do with someone that has been tested in sda

thanks