Thanks you. the contents of /etc/network/interfaces: auto eth0 iface eth0 inet dhcp iface eth0 inet static address 10.0.0.21 netmask 255.255.255.0
when I want to start the network, I got some warning: roach:~# /etc/init.d/networking restart Reconfiguring network interfaces...ifdown: failed to open statefile /etc/ne ifup: failed to open statefile /etc/network/run/ifstate: Stale NFS file hae failed. I aslo use this: auto eth0 #iface eth0 inet dhcp iface eth0 inet static address 10.0.0.21 netmask 255.255.255.0 But can not start the network. if I run dhclient and can get IP address. > -----Original Messages----- > From: "David MacMahon" <dav...@berkeley.edu> > Sent Time: 2019-06-20 22:26:41 (Thursday) > To: casper@lists.berkeley.edu > Cc: "zhang laiyu" <zhan...@ihep.ac.cn>, jackhick...@gmail.com > Subject: Re: [casper] ROACH Network is unreachable > > To further Marc’s query: when you mmcboot into the broken system, what are > the contents of /etc/network/interfaces? > > Dave > > > On Jun 20, 2019, at 04:06, Marc <m...@ska.ac.za> wrote: > > > >> On 6/20/19, zhang laiyu <zhan...@ihep.ac.cn> wrote: > >> Hi,Marc, Jack > >> I make some progress but it was not solved. > >> I boot the ROACH by 'run mmcboot' and did not got an IP address. And > >> then log in RAOCH as root and try issuing the commands: > >> dhclient -r > >> dhclient > >> ifconfig > >> Then ROACH was assigned an ip address. And can use telnet to login > >> ROACH. > >> But when I reboot the ROACH, ROACH Network is still unreachable.I have > >> to issuing the commands:dhclient again. > >> I also open two ports ( tcp port 53 and udp port 67) in the server.But > >> it still does not work. > >> I think that the DHCP connection doesn't work during boot.But I do not > >> the reason. > > > > So if you boot into the broken system and connect via serial cable > > what does the output of > > > > /sbin/ifconfig eth0 > > > > say ? Is there no IP address configured, or is it set to the wrong one > > ? If it is set incorrectly there may be some startup script which has > > some old/stale values set. > > You could try to add a > > > > set -x > > > > to some of the startup scripts, so that they echo the commands they execute > > > > regards > > > > marc > > > > -- > > You received this message because you are subscribed to the Google Groups > > "casper@lists.berkeley.edu" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to casper+unsubscr...@lists.berkeley.edu. > > To view this discussion on the web visit > > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAGrhWaQPV8NBHcrvV8rQaUGdyQZJTFcW5aG1Vyujrn0HcBr7xg%40mail.gmail.com. > > -- > You received this message because you are subscribed to the Google Groups > "casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/F2389975-B9E7-4BA6-B797-9D2421624736%40berkeley.edu. -- Cheers! >------------------------------------------------------------------------ ZHANG Laiyu Phone(China) 010-88236415 Cellphone(China) 13681385567 E-mail: zhan...@ihep.ac.cn Address: 19B Yuquan Road,Shijingshan District,Beijing,China Department: Center for Particle Astrophysics Office: Astrophysics Building 205Institute of High Energy Physics, CAS web: http://www.ihep.cas.cn>------------------------------------------------------------------------ -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/308856dd.3900.16b779c8676.Coremail.zhangly%40ihep.ac.cn.