now I try to install the ubuntu server 8.10 . I got the error as : i8042.c:No controller found. Loading.please wait... hub 4-0:1.0:unable to enumerate USB device on port 2 Gave up waiting for root device. In my opinion : ubuntu server can not support USB device as well as ubuntu desktop version. <div class="gmail_quote">2009/9/2 Nils Kassube <<a href="mailto:kassube@gmx.net">kassube@gmx.net</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">Simon tree wrote: > But if I just install ubunt 9.04-desktop-i386 version ,everything is > ok! if I try to update to linux-server pkg. > I also got the problem (can not reboot into system) </div>I'm not sure which kernel would be used after you installed the linux- server pkg but I would expect it is the -server version. You may try to use the working desktop kernel from the grub boot menu. The desktop kernel should be still installed unless you explicitly removed it. Nils -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div> -- -- Simon (ДовА) Room C321, Building of Medical Sciences Tsinghua University, Haidian Dictrict, Beijing, 100084 China 86-10-62794737 (office) tel:13671119280