and then I use “systemctl enable dhcpcd@ ” hoping to reset the Internet connection but the shell tells me“ Fail to issue method call:Read-only file system”

You need to do 'systemctl enable dhcpcd@interface_name' substituting the interface_name with your network device like eth0. Do you get the read-only filesystem error anywhere else, as that would suggest your root-fs is mounted in read-only mode. Can you post your fstab?

On 10/28/2012 12:18 AM, SMR wrote:

Hello.I'm a new users of Archlinux but using Ubuntu for 3 years.

I have installed all the system following the guide of beginner's guide. and I found I could not ping to google after I reboot my computer however just as 5 minutes before I had just used pacman to install all the packages i needed. and then I use “systemctl enable dhcpcd@ ” hoping to reset the Internet connection but the shell tells me“ Fail to issue method call:Read-only file system” Does anyone know what's the problem?

Thank you!

So this is once booted into your new system? Did you add your root partition to /etc/fstab? If it's not there, it won't be remounted rw during the bootup processes. So, you won't be able to enable any services and dhcp won't be able to write to /etc/resolv.conf for your DNS settings. Add a similar line to this to /etc/fstab: /dev/<xxx> / auto defaults,relatime 0 1