Modify the U disk and hostname on Archlinux

On Archlinux, I used the U disk and hostname to modify my own computer, which is a relatively old thinkpadT42 model. of course, the configuration is also relatively low. I can only say that it meets my daily office needs and read the documents, write a applet or watch a normal movie. It's hard to look at what HD is, and it has worked so hard...
On Archlinux, I used the U disk and hostname to modify my own computer, which is a relatively old thinkpad T42 model. of course, the configuration is also relatively low. I can only say that it meets my daily office needs and read the documents, write a applet or watch a normal movie. It's hard to look at what high definition is. I 've been working hard for many years and I'm still using my own waste of heat. it's not easy! 1. USB flash disk identification problems ThinkPad t42 USB interface only supports USB 1.1, that is, the transmission speed is almost hard to reach 1 Mbit/s. In windows, you can automatically identify mounting, which is almost the same as using USB 2.0. The problem arises in archlinux. After the computer is started, the USB flash drive is inserted into the usb interface. The unable to enumerate USB device on port 4 is displayed continuously on the terminal, when mounting sdb1 with mount, an error is reported. The solution provided by someone on the Internet is really effective: first, go to the/sys/bus/pci/drivers/ehci_hcd/directory and you can see a solution similar to 0000: 00: xx. x, the local is: 0000: 00: 1d: 7. then in/etc/rc. add a line in the local file: echo-n "0000: 00: xx: x">/sys/bus/pci/drivers/ehci_hcd/unbind, where "0000: 00: xx: x "to replace the cost machine. Here, my computer is: echo-n "0000: 00: 1d: 7">/sys/bus/pci/drivers/ehci_hcd/unbind www.2cto.com 2. the host name is not a problem. in the past, hostname was in/etc/rc. conf file, but the configuration location is changed due to archlinux system updates. Now in/etc/rc. the configuration in the conf file: HOSTNAME = arch can still be used normally, but when the system is started, the highlighted font is in/etc/rc. the hostname configuration in conf is not recommended and will be eliminated, but is still supported by the system. (Similar to the use of some classes in Java)
Now use the class in the/etc/hostname file to replace the configuration in the/etc/rc. conf file. This file does not exist in my system, so we need to create it again. In addition, the hostname command is used to modify the host name. after the system is restarted, the host name must be reset. Therefore, this configuration method is not good. Www.2cto.com and enter arch in the file. It is easy to use without additional characters. However, you still need to remember to add the system alias arch after localhost in the/etc/hosts file. another point is to enable IPV6 for students on CERNET and set the hosts file to implement ipv6 | wall. If you want to watch youtube, the speed is very fast, which is comparable to that of the excellent library. In addition, the Gmail service often receives interference, and this will not affect it, which is very good. At present, ipv6 is rarely used and the speed is very fast. we recommend that you. It comes with a list of all commonly used ipv6 hosts files on google code, which can be used in both linux and windows. it is great and recommended !!!