Discuss June 2015

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Unable to install Centos 7 64 bit
by JD 09 Jun '15

09 Jun '15

Greetings... What is the fastest site for downloading CentOS-7-x86_64-DVD-1503-01.iso ? Thanx

4 5

CEntos6.6　doesn't　install Glusterfs-server?
by yoshihome 09 Jun '15

09 Jun '15

Hi I am newbie of Centos. I am trouble with installing glusterfs-server on Centos6.6 presented as below Sorry for you inconvenience in error message translated from Japanese messeage of Centos6.6. Is there Any solution? ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー [root@fs2 ~]# yum -y install glusterfs-server ....plugin:fastestmirror, priorities, refresh-packagekit, security ........ ...... Loading mirror speeds from cached hostfile epel/metalink | 4.0 kB 00:00 * base: centos.mirror.secureax.com * epel: ftp.kddilabs.jp * extras: ftp.iij.ad.jp * rpmforge: ftp.kddilabs.jp * updates: centos.mirror.secureax.com base | 3.7 kB 00:00 extras | 3.4 kB 00:00 glusterfs-epel | 2.9 kB 00:00 glusterfs-noarch-epel | 2.9 kB 00:00 rpmforge | 1.9 kB 00:00 updates | 3.4 kB 00:00 1684 packages excluded due to repository priority protections ...... ....... error;packages: glusterfs-server-3.7.1-1.el6.x86_64 (glusterfs-epel) request: glusterfs-cli = 3.7.1-1.el6 available: glusterfs-cli-3.6.0.28-2.el6.x86_64 (base) glusterfs-cli = 3.6.0.28-2.el6 available: glusterfs-cli-3.6.0.29-2.el6.x86_64 (updates) glusterfs-cli = 3.6.0.29-2.el6 error:packages: glusterfs-server-3.7.1-1.el6.x86_64 (glusterfs-epel) request: glusterfs-fuse = 3.7.1-1.el6 available: glusterfs-fuse-3.6.0.28-2.el6.x86_64 (base) glusterfs-fuse = 3.6.0.28-2.el6 available: glusterfs-fuse-3.6.0.29-2.el6.x86_64 (updates) glusterfs-fuse = 3.6.0.29-2.el6 You cannot use --skip-broken You can try: rpm -Va --nofiles --nodigest

2 2

Does CentOS7 targetcli work to serve out to XEN hosts?
by Rob Townley 08 Jun '15

08 Jun '15

I have been successful at getting one XEN host to initiate a iSCSI connection to a target served by CentOS7, but not a second XEN host. xe sr-create complains the StorageRepository is in use. Is there a configuration change? Another iSCSI target server to use?

1 0

Spamassassin: last step
by Timothy Murphy 08 Jun '15

08 Jun '15

I'm running CentOS-7 on my home server, and have setup postfix + dovecot + spamassassin. Everything seems to be working fine, except that while spam is being marked as ***Spam***, it is ending up in ~/Maildir/cur/ . I'd like to divert it to ~/Maildir/.Spam/ (where I can examine it with sa-learn). What is the simplest way to do this? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dubli

2 1

Re: [CentOS] Migration to centos 7 and program seg faulting [solved]
by Jerry Geis 08 Jun '15

08 Jun '15

Thanks for the suggestions. My case ended up being a large local variable (stack data)that was fine before and not fine on CentOS 7. If found it by #ifdef entire main function, my program then ran. I then just started letting in chunks of code to narrow it down. jerry

1 0

could not insert 'fuse' error on CentOS 7.1
by Tim Dunphy 08 Jun '15

08 Jun '15

Hey guys, I tried installing the latest fuse on CentOS 7.1. I downloaded the latest version (2.9.4) from sourceforge and did a source install. After rebooting the host, now when I go modprobe fuse, this is what I get! *modprobe: ERROR: could not insert 'fuse': Unknown symbol in module, or unknown parameter (see dmesg)* If I tail dmseg this is all I see, but it doesn't seem relevant: [root@ops:~] #dmesg | tail [ 3.342679] input: PC Speaker as /devices/platform/pcspkr/input/input4 [ 3.351981] piix4_smbus 0000:00:01.3: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr [ 3.502014] ppdev: user-space parallel port driver [ 3.539306] AES CTR mode by8 optimization enabled [ 3.590103] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni) [ 3.635925] alg: No test for crc32 (crc32-pclmul) [ 3.659506] type=1305 audit(1433643281.958:4): audit_pid=472 old=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:auditd_t:s0 res=1 [ 4.084861] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 9.575888] systemd-journald[393]: Received request to flush runtime journal from PID 1 [ 10.702056] Adjusting xen more than 11% (9436999 vs 9311354) Has anyone out there encountered this error with fuse and been able to overcome it? I've tried googling this to no avail!! Thanks, Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

3 6

kvm machine type pc-i440fx-2.1
by Marius Vaitiekunas 08 Jun '15

08 Jun '15

Hi, Could anybody give me some advice, how to define virtual machine type "pc-i440fx-2.1" on latest centos 7.1? I need to live migrate vms from debian based hypervisor and I get an error about unsupported machine types, because on centos there are different naming "pc-i440fx-rhel7.1.0". -- Marius Vaitiekūnas

1 0

Open-sourced: OpenCL-based multiphysics simulation software package
by Zeev Pekar 08 Jun '15

08 Jun '15

Dear CentOS community, we would like to announce the recent open-source release of our GPU-enabled multiphysics software - Advanced Simulation Library. http://asl.org.il/ Here are some remarkable benchmarks: http://asl.org.il/benchmarks/multicomponent_flow/ I hope that it will be included in CentOS as a package in some near future (you may join the volunteers from Fedora's SciTech SIG) but till then you might find it useful in its current form. Happy hacking, Zeev ps: Please, "like" us on Facebook, if you find ASL cool: https://www.facebook.com/pages/Avtech-Scientific/828973737156105

1 0

How to install clang on CentOS 7?
by Nan Xiao 08 Jun '15

08 Jun '15

Hi all, I want to install clang on CentOS 7. After executing "yum install clang", it outputs: [root@hp ~]# yum install clang Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.mia.host-engine.com * elrepo: elrepo.mirrors.arminco.com * extras: centos.arvixe.com * updates: centos.eecs.wsu.edu No package clang available. Error: Nothing to do Doesn't CentOS 7 support rpm install clang? Thanks in advance! Best Regards Nan Xiao

3 3

Why can't the CentOS get dynamic IP address in WIFI environment?
by Nan Xiao 08 Jun '15

08 Jun '15

Hi CentOS users, I have install CentOS 7 in VirtualBox, and want the guest CentOS using dynamic IP address (The network type is bridged). I find the guest CentOS can works OK when using ethernet cable, but can't get IP address via wireless network. I also posted this issue on stackoverflow (http://superuser.com/questions/922045/how-does-the-guest-os-of-virtualbox-g…) (1) The "ip addr" command outputs: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:bc:e1:67 brd ff:ff:ff:ff:ff:ff (2) The content of ifcfg-enp0s3: TYPE="Ethernet" BOOTPROTO="dhcp" DEFROUTE="yes" PEERDNS="yes" PEERROUTES="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_PEERDNS="yes" IPV6_PEERROUTES="yes" IPV6_FAILURE_FATAL="no" NAME="enp0s3" UUID="6d221230-f35b-44da-9536-a4e9acfa2bc2" DEVICE="enp0s3" ONBOOT="yes" (3) The network related logs from /var/log/messages: Jun 4 01:52:40 CentOS kernel: drop_monitor: Initializing network drop monitor service Jun 4 01:52:40 CentOS kernel: e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI Jun 4 01:52:41 CentOS kernel: e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection Jun 4 01:52:41 CentOS systemd-udevd[234]: renamed network interface eth0 to enp0s3 Jun 4 01:52:47 CentOS systemd: Starting Import network configuration from initramfs... Jun 4 01:52:47 CentOS systemd: Started Import network configuration from initramfs. Jun 4 01:52:51 CentOS systemd: Starting Network Manager... Jun 4 01:52:51 CentOS NetworkManager[689]: <info> NetworkManager (version 1.0.0-14.git20150121.b4ea599c.el7) is starting... Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 10-ibft-plugin.conf Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WEXT support is disabled Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Acquired D-Bus service com.redhat.ifcfgrh1 Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin ifcfg-rh: (c) 2007 - 2013 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin iBFT: (c) 2014 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. Jun 4 01:52:51 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ... Jun 4 01:52:51 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-enp0s3 ... Jun 4 01:52:51 CentOS NetworkManager[689]: <info> read connection 'enp0s3' Jun 4 01:52:51 CentOS NetworkManager[689]: <info> monitoring kernel firmware directory '/lib/firmware'. Jun 4 01:52:51 CentOS systemd: Started Network Manager. Jun 4 01:52:51 CentOS systemd: Starting LSB: Bring up/down networking... Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WiFi enabled by radio killswitch; enabled by state file Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WWAN enabled by radio killswitch; enabled by state file Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WiMAX enabled by radio killswitch; enabled by state file Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Networking is enabled by state file Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): link connected Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): carrier is ON Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): new Generic device (driver: 'unknown' ifindex: 1) Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): exported as /org/freedesktop/NetworkManager/Devices/0 Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): carrier is OFF Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): new Ethernet device (driver: 'e1000' ifindex: 2) Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): exported as /org/freedesktop/NetworkManager/Devices/1 Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): preparing device Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): link connected Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40] Jun 4 01:52:52 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'. Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3' Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled... Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started... Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 4 01:52:52 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled... Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete. Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting... Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0] Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful. Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete. Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ... Jun 4 01:52:52 CentOS network: Bringing up loopback interface: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo' Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ... Jun 4 01:52:52 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo' Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ... Jun 4 01:52:52 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo' Jun 4 01:52:53 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ... Jun 4 01:52:53 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo' Jun 4 01:52:53 CentOS network: [ OK ] Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled. Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started... Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0] Jun 4 01:52:53 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds) Jun 4 01:52:53 CentOS NetworkManager[689]: <info> dhclient started with pid 1140 Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete. Jun 4 01:52:53 CentOS network: Bringing up interface enp0s3: [ OK ] Jun 4 01:52:53 CentOS systemd: Started LSB: Bring up/down networking. Jun 4 01:52:53 CentOS systemd: Starting Network. Jun 4 01:52:53 CentOS systemd: Reached target Network. Jun 4 01:52:53 CentOS dhclient[1140]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x623c8c73) Jun 4 01:52:59 CentOS dhclient[1140]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x623c8c73) Jun 4 01:53:06 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x28b9690d) Jun 4 01:53:13 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 17 (xid=0x28b9690d) Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled... Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started... Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete. Jun 4 01:53:30 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 14 (xid=0x28b9690d) Jun 4 01:53:38 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out. Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 1140 Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled... Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started... Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5] Jun 4 01:53:38 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED Jun 4 01:53:38 CentOS NetworkManager[689]: <info> startup complete Jun 4 01:53:38 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3' Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0] Jun 4 01:53:39 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3' Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled... Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started... Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 4 01:53:39 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled... Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting... Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0] Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled. Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started... Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0] Jun 4 01:53:39 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds) Jun 4 01:53:39 CentOS NetworkManager[689]: <info> dhclient started with pid 2365 Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete. Jun 4 01:53:39 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f) Jun 4 01:53:42 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f) Jun 4 01:53:46 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f) Jun 4 01:53:54 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x1de75b49) Jun 4 01:54:01 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x1de75b49) Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled... Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started... Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete. Jun 4 01:54:12 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 21 (xid=0x1de75b49) Jun 4 01:54:23 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out. Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2365 Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5] Jun 4 01:54:23 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED Jun 4 01:54:23 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3' Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete. Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0] Jun 4 01:54:23 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'. Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3' Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 4 01:54:23 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete. Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting... Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0] Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful. Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete. Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled. Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started... Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0] Jun 4 01:54:24 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds) Jun 4 01:54:24 CentOS NetworkManager[689]: <info> dhclient started with pid 2393 Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete. Jun 4 01:54:24 CentOS dhclient[2393]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x77843ed1) Jun 4 01:54:29 CentOS dhclient[2393]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x77843ed1) Jun 4 01:54:41 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0xe3a3af6) Jun 4 01:54:45 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 5 (xid=0xe3a3af6) Jun 4 01:54:50 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0xe3a3af6) Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled... Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started... Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete. Jun 4 01:55:02 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 14 (xid=0xe3a3af6) Jun 4 01:55:08 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out. Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2393 Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5] Jun 4 01:55:08 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED Jun 4 01:55:08 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3' Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete. Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0] Jun 4 01:55:08 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'. Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3' Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 4 01:55:08 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete. Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting... Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0] Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful. Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete. Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled. Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started... Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0] Jun 4 01:55:09 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds) Jun 4 01:55:09 CentOS NetworkManager[689]: <info> dhclient started with pid 2421 Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete. Jun 4 01:55:09 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211) Jun 4 01:55:12 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211) Jun 4 01:55:16 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211) Jun 4 01:55:27 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0x281d5ba3) Jun 4 01:55:31 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 10 (xid=0x281d5ba3) Jun 4 01:55:34 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0x3e3fe85b) Jun 4 01:55:38 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 5 (xid=0x3e3fe85b) Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled... Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started... Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete. Jun 4 01:55:41 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x281d5ba3) Jun 4 01:55:43 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0x3e3fe85b) Jun 4 01:55:48 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x281d5ba3) Jun 4 01:55:53 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out. Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2421 Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled... Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started... Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5] Jun 4 01:55:53 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED Jun 4 01:55:53 CentOS NetworkManager[689]: <info> Disabling autoconnect for connection 'enp0s3'. Jun 4 01:55:53 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3' Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete. Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0] Jun 4 01:55:55 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x3e3fe85b) Jun 4 01:56:06 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 17 (xid=0x3e3fe85b) Jun 4 01:56:23 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0x3e3fe85b) Jun 4 01:56:35 CentOS dhclient[2425]: No DHCPOFFERS received. Jun 4 01:56:35 CentOS dhclient[2425]: No working leases in persistent database - sleeping. Could anyone give some comments? Thanks very much! Best Regards Nan Xiao

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