I installed ML1.2 a few days ago, everything is fixed, that is, USB can be made. Take a few days. I used to modify rc.system, but I can't change it. My machine configuration: PIV2.8GHz, 512M, 80G 40G (double hard drive), GF440 (64M), Vibra128, DVD, CDRW. Intel chipset. This morning, I remembered the last trick and recompile the kernel. When I used RedHat9.0, when I upgraded the kernel to 2.6.8, I started to get otherwise, it was USB, I was tossing for 3 days, accidentally, I put USB's support to compile the kernel, result After restarting the system, USB can be used! * _ *. Today, I also tried to do this, ML1.2 is compiled with USB as a module, I have modified it, directly compiling the kernel. After compiling the kernel, restart. After the system is started, insert a U disk, fdisk -l is exciting, / dev / sda1 is displayed! Try mobile hard drive, OK! Also recognized! This is what I solve the USB problem. For friends who have not solved USB problems, they may have some help!