Installing macport

http://www.macports.org/install.php#pkg

$ curl -O http://distfiles.macports.org/MacPorts/MacPorts-1.8.1-10.6-SnowLeopard.dmg
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 431k 100 431k 0 0 148k 0 0:00:02 0:00:02 --:--:-- 209k
dhcp-67-178:Software mathieu$ hdiutil attach ./MacPorts-1.8.1-10.6-SnowLeopard.dmg
Checksumming Protective Master Boot Record (MBR : 0)…
Protective Master Boot Record (MBR :: verified CRC32 $3A3AE94A
Checksumming GPT Header (Primary GPT Header : 1)…
GPT Header (Primary GPT Header : 1): verified CRC32 $CA2CC8A2
Checksumming GPT Partition Data (Primary GPT Table : 2)…
GPT Partition Data (Primary GPT Tabl: verified CRC32 $395B8734
Checksumming (Apple_Free : 3)…
(Apple_Free : 3): verified CRC32 $00000000
Checksumming disk image (Apple_HFS : 4)…
............................................................................................................................................................................................................................................................................
disk image (Apple_HFS : 4): verified CRC32 $260D55ED
Checksumming (Apple_Free : 5)…
(Apple_Free : 5): verified CRC32 $00000000
Checksumming GPT Partition Data (Backup GPT Table : 6)…
GPT Partition Data (Backup GPT Table: verified CRC32 $395B8734
Checksumming GPT Header (Backup GPT Header : 7)…
GPT Header (Backup GPT Header : 7): verified CRC32 $E963A641
verified CRC32 $1EEE11CE
/dev/disk4 GUID_partition_scheme
/dev/disk4s1 Apple_HFS /Volumes/MacPorts-1.8.1


$ cd /Volumes/MacPorts-1.8.1

$ sudo installer -pkg MacPorts-1.8.1.pkg -target /
installer: Package name is MacPorts-1.8.1
installer: Installing at base path /
installer: The install was successful.

$ sudo port -v selfupdate
sudo: port: command not found

Hum looks like my .profile was not copied as expected (*)

(*) http://guide.macports.org/#installing.shell