在升级到kernel-3.17的centos-6.5上安装docker会遇到什么错误
小编给大家分享一下在升级到kernel-3.17的centos-6.5上安装docker会遇到什么错误,相信大部分人都还不怎么了解,因此分享这篇文章给大家参考一下,希望大家阅读完这篇文章后大有收获,下面让我们一起去了解一下吧!
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在升级到kernel-3.17的centos-6.5上安装docker,直接执行以下命令:
yum install golang yum install docker-io chkconfig add docker service docker start
但出现了以下错误:
[root@osd2 ~]# service docker start Starting cgconfig service: Error: cannot mount memory to /cgroup/memory: No such file or directory /sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed Failed to parse /etc/cgconfig.conf [FAILED] Starting docker: [ OK ] [root@osd2 ~]# service docker start [root@osd2 ~]# service docker status docker dead but pid file exists
查了一下cgconfig:
[root@osd2 ~]# /etc/init.d/cgconfig status Stopped [root@osd2 ~]# /etc/init.d/cgconfig start Starting cgconfig service: Error: cannot mount memory to /cgroup/memory: No such file or directory /sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed Failed to parse /etc/cgconfig.conf [FAILED] [root@osd2 ~]# ls /cgroup/ blkio devices freezer memory net_cls
memory是有的,但就是出错,需要修改:
[root@osd2 ~]# cat /etc/cgconfig.conf # # Copyright IBM Corporation. 2007 # # Authors: Balbir Singh# This program is free software; you can redistribute it and/or modify it # under the terms of version 2.1 of the GNU Lesser General Public License # as published by the Free Software Foundation. # # This program is distributed in the hope that it would be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # # See man cgconfig.conf for further details. # # By default, mount all controllers to /cgroup/ mount { cpuset = /cgroup/cpuset; cpu = /cgroup/cpu; cpuacct = /cgroup/cpuacct; # memory = /cgroup/memory; devices = /cgroup/devices; freezer = /cgroup/freezer; net_cls = /cgroup/net_cls; blkio = /cgroup/blkio; }
再次启动cgconfig,一切正常。但重启docker,依然报错:
[root@osd2 ~]# service docker status docker dead but pid file exists [root@osd2 ~]# tailf /var/log/docker \nMon Jan 5 14:04:33 CST 2015\n 2015/01/05 14:04:33 docker daemon: 1.3.2 39fa2fa/1.3.2; execdriver: native; graphdriver: [910cf963] +job serveapi(unix:///var/run/docker.sock) [910cf963] +job init_networkdriver() [info] Listening for HTTP on unix (/var/run/docker.sock) Unable to enable network bridge NAT: iptables failed: iptables -I POSTROUTING -t nat -s 172.17.42.1/16 ! -o docker0 -j MASQUERADE: iptables v1.4.7: can't initialize iptables table `nat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. (exit status 3) [910cf963] -job init_networkdriver() = ERR (1) 2015/01/05 14:04:33 (exit status 3)
日志显示无法创建nat网桥,看了一下正常的docker环境和modules:
[root@lm backup]# lsmod | grep nat ebtable_nat 2009 0 ebtables 18135 1 ebtable_nat iptable_nat 6051 1 nf_nat 23316 2 ipt_MASQUERADE,iptable_nat nf_conntrack_ipv4 9506 4 iptable_nat,nf_nat nf_conntrack 80390 6 xt_conntrack,xt_state,ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4 ip_tables 17831 3 iptable_nat,iptable_mangle,iptable_filter [root@lm backup]# find /lib/modules/2.6.32-504.1.3.el6.x86_64/ -name "*nat*" /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_proto_dccp.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_proto_udplite.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_ftp.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_proto_sctp.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_proto_gre.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_sip.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_tftp.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_pptp.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/iptable_nat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_snmp_basic.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_amanda.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_h423.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/ipv4/netfilter/nf_nat_irc.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/bridge/netfilter/ebt_snat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/bridge/netfilter/ebt_dnat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/bridge/netfilter/ebtable_nat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/net/sched/act_nat.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/drivers/net/natsemi.ko /lib/modules/2.6.32-504.1.3.el6.x86_64/kernel/drivers/net/phy/national.ko
编译过内核的环境:
[root@osd2 /]# lsmod | grep nat ebtable_nat 2071 0 ebtables 26518 1 ebtable_nat [root@osd2 modprobe.d]# find /lib/modules/3.17.4/ -name "*nat*" /lib/modules/3.17.4/kernel/net/sched/act_nat.ko /lib/modules/3.17.4/kernel/net/bridge/netfilter/ebt_snat.ko /lib/modules/3.17.4/kernel/net/bridge/netfilter/ebt_dnat.ko /lib/modules/3.17.4/kernel/net/bridge/netfilter/ebtable_nat.ko /lib/modules/3.17.4/kernel/drivers/net/ethernet/natsemi /lib/modules/3.17.4/kernel/drivers/net/ethernet/natsemi/natsemi.ko /lib/modules/3.17.4/kernel/drivers/net/phy/national.ko
缺少了nat模块,才引起了上述错误,需要重新编译内核或使用旧内核。
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