Debain : linux-wlan-ng 為了dwl 122 usb wifi

#apt-get install linux-wlan-ng
The following NEW packages will be automatically installed:
linux-image-2.6.12-1-386 linux-wlan-ng-doc
linux-wlan-ng-modules-2.6.12-1-386 wireless-tools
The following packages have been kept back:
libnspr4 libnss3 mozilla-browser mozilla-psm
The following NEW packages will be installed:
linux-image-2.6.12-1-386 linux-wlan-ng linux-wlan-ng-doc
linux-wlan-ng-modules-2.6.12-1-386 wireless-tools

是從 "unstable" download的, kernel image被upgrade到2.6.12....

Get:1 ftp://ftp.us.debian.org unstable/main linux-image-2.6.12-1-386 2.6.12-10 [15.8MB]
Get:2 ftp://ftp.us.debian.org unstable/main linux-wlan-ng 0.2.2+dfsg-3 [127kB]
Get:3 ftp://ftp.us.debian.org unstable/main linux-wlan-ng-doc 0.2.2+dfsg-3 [80.7kB]
Get:4 ftp://ftp.us.debian.org unstable/main linux-wlan-ng-modules-2.6.12-1-386 0.2.2+dfsg-3 [197kB]
Fetched 16.2MB in 6m4s (44.6kB/s)
Selecting previously deselected package linux-image-2.6.12-1-386.
(Reading database ... 91790 files and directories currently installed.)
Unpacking linux-image-2.6.12-1-386 (from .../linux-image-2.6.12-1-386_2.6.12-10_i386.deb) ...
Selecting previously deselected package wireless-tools.
Unpacking wireless-tools (from .../wireless-tools_27-2_i386.deb) ...
Selecting previously deselected package linux-wlan-ng.
Unpacking linux-wlan-ng (from .../linux-wlan-ng_0.2.2+dfsg-3_i386.deb) ...
Selecting previously deselected package linux-wlan-ng-doc.
Unpacking linux-wlan-ng-doc (from .../linux-wlan-ng-doc_0.2.2+dfsg-3_all.deb) ...
Selecting previously deselected package linux-wlan-ng-modules-2.6.12-1-386.
Unpacking linux-wlan-ng-modules-2.6.12-1-386 (from .../linux-wlan-ng-modules-2.6.12-1-386_0.2.2+dfsg-3_i386.deb) ...
Setting up linux-image-2.6.12-1-386 (2.6.12-10) ...
WARNING: Loop detected: /lib/modules/2.6.12-1-386/linux-wlan-ng/p80211.ko which needs p80211.ko again!
WARNING: Module /lib/modules/2.6.12-1-386/linux-wlan-ng/p80211.ko ignored, due to loop
WARNING: Module /lib/modules/2.6.12-1-386/linux-wlan-ng/prism2_usb.ko ignored, due to loop
WARNING: Module /lib/modules/2.6.12-1-386/linux-wlan-ng/prism2_plx.ko ignored, due to loop
WARNING: Module /lib/modules/2.6.12-1-386/linux-wlan-ng/prism2_pci.ko ignored, due to loop
WARNING: Module /lib/modules/2.6.12-1-386/linux-wlan-ng/prism2_cs.ko ignored, due to loop
Searching for GRUB installation directory ... found: /boot/grub .
Testing for an existing GRUB menu.list file... found: /boot/grub/menu.lst .
Searching for splash image... none found, skipping...
Found kernel: /boot/vmlinuz-2.6.12-1-386
Found kernel: /boot/vmlinuz-2.6.8-2-386
Updating /boot/grub/menu.lst ... done


Setting up wireless-tools (27-2) ...
Setting up linux-wlan-ng (0.2.2+dfsg-3) ...

Setting up linux-wlan-ng-doc (0.2.2+dfsg-3) ...
Setting up linux-wlan-ng-modules-2.6.12-1-386 (0.2.2+dfsg-3) ...

Reading Package Lists... Done
Building Dependency Tree
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done

重開機，多了一個boot image。選2.6.12的version boot進去後。
modify /etc/modules.conf 加入

alias  wlan0  prism2_usb

執行update-modules，出現warnning : loop detected XXXXXX。
所以之後用modprobe 都無法load prism2_usb module。
google一下，發現是