Install Kernel for OpenVZ2010/04/24 |
| This section is the virtualization with OpenVZ. | |
| [1] | Install Kernel for OpenVZ first and reboot system with it. |
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[root@ns ~]# cd /etc/yum.repos.d [root@ns yum.repos.d]# wget http://download.openvz.org/openvz.repo [root@ns yum.repos.d]# [root@ns ~]# yum -y install ovzkernel Loading "installonlyn" plugin Loading "fastestmirror" plugin Setting up Install Process Setting up repositories openvz-kernel-rhel5 100% |=========| 951 B 00:00 openvz-utils 100% |===========| 951 B 00:00 Loading mirror speeds from cached hostfile Reading repository metadata in from local files primary.xml.gz 100% |================| 31 kB 00:00 openvz-ker : ###################### 14/14 Added 14 new packages, deleted 0 old in 0.26 seconds primary.xml.gz 100% |===============| 5.3 kB 00:00 openvz-uti : ########## 21/21 Added 21 new packages, deleted 0 old in 0.13 seconds Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for ovzkernel to pack into transaction set. ovzkernel-2.6.18-8.el5.02 100% |====================| 255 kB 00:00 ---> Package Package ovzkernel.i686 0:2.6.18-8.el5.028stab031.1 set to be installed --> Running transaction check Dependencies Resolved ============== Package Arch Version Repository Size ================== Installing: ovzkernel i6862.6.18-8.el5. 028stab031.1openvz-kernel -rhel5 15 M Transaction Summary ========================= Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 15 M Downloading Packages: (1/1): ovzkernel-2.6.18-8 100% |===========| 15 MB 00:38 Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: ovzkernel############## [1/1] Installed: ovzkernel.i686 0:2.6.18-8.el5.028stab031.1 Complete! [root@ns ~]# [root@ns ~]# vi /etc/sysctl.conf # line 7: change net.ipv4.ip_forward = 1 # line 16: change kernel.sysrq = 1 # add at the bottom net.ipv4.conf.default.proxy_arp = 0 net.ipv4.conf.default.send_redirects = 1 net.ipv4.conf.all.send_redirects = 0 [root@ns ~]# vi /boot/grub/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/Host/LogVol01 # initrd /initrd-version.img #boot=/dev/sda # change default kernel default= 0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-8.el5.028stab031.1) root (hd0,0) kernel /vmlinuz-2.6.18-8.el5.028stab031.1 ro root=/dev/VZ/Host00 console=tty0 initrd /initrd-2.6.18-8.el5.028stab031.1.img title CentOS (2.6.18-8.1.4.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-8.1.4.el5 dom0_mem=512M module /vmlinuz-2.6.18-8.1.4.el5xen ro root=/dev/Xen/Host00 module /initrd-2.6.18-8.1.4.el5xen.img title CentOS (2.6.18-8.1.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-8.1.1.el5 ro root=/dev/Xen/Host00 initrd /initrd-2.6.18-8.1.1.el5.img title CentOS (2.6.18-8.el5) root (hd0,0) kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/Xen/Host00 initrd /initrd-2.6.18-8.el5.img [root@ns ~]# shutdown -r now [root@ns ~]# uname -r 2.6.18-8.el5.028stab031.1 # OpenVZ kernel
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