Comment 8 for bug 122402

I try to install a debian lenny 5.01 from USB stick.

My USB stick is successfully mounted to the /cdrom folder.

Debian Installer succesfully detect the cdrom and base files.

After step "Partition disks" I go to the step "Install the base system" and see the error:
"Failed to determine codename for the release".

After that Installs stops and send me back to step "Install the base system".

I try go to the console (Alt-F2) and type commands:

# uname -a
Linux hostname 2.6.26-2-amd64 #1 SMP <date> x86_64 unknown

# lsb_release -a
-/bin/sh: lsb_release: not found

# lsusb -v
-/bin/sh: lsusb: not found

What is "codename for the release"? Where I can change or set it?
What additional info I can tell to solve the problem?