I tried to boot ubuntu 8.10 (Intrepid) with USB Huawei E220 modem and it worked properly. But when I removed and plugged it again, it didn’t work as expected. The modem can’t detect properly. The dmesg says : [ 918.669157] /build/buildd/linux-2.6.24/drivers/usb/serial/usb-serial.c: USB Serial support registered for airprime [ 918.669218] usbcore: registered new interface driver airprime [...]