As OpenStack has continued to mature, it has become more complicated in some ways but radically simplified in others. From a deployers view, each service has become easier to deploy with more sensible defaults and the proliferations of cloud distributions. However, the architects view of OpenStack has actually gotten more complicated – new services have […]
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September 25th, 2014 | Category: Centos, RHCE | Leave a comment 1. during installation prompt, insert net.ifnames=0 to disable consistent network device naming 2. after first reboot of installation: 3. enable normal ethx interface name and disable ipv6 vi /etc/default/grub add net.ifnames=0,ipv6.disable=1 to GRUB_CMDLINE_LINUX line grub2-mkconfig -o /boot/grub2/grub.cfg 4. disable UTC vi /etc/adjtime change UTC to LOCAl 5. disable selinux vi /etc/sysconfig/selinux SELINUX=disabled […] To list all currently loaded service units: systemctl list-units –type service To list all installed service units: systemctl list-unit-files –type service Lists currently loaded target units: systemctl list-units –type target Changes the current target: systemctl isolate name.target systemctl get-default systemctl set-default name.target systemctl rescue (single user mode) resetting root password: edit boot kernel line, insert […] Make sure not to use NetworkManager, using normal network vi /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 BOOTPROTO=none ONBOOT=yes IPADDR=192.168.1.27 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 DNS1=8.8.8.8 USERCTL=no BONDING_OPTS=”mode=1 miimon=100″ vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 MASTER=bond0 SLAVE=yes USERCTL=no BOOTPROTO=none ONBOOT=yes sed “s/eth0/eth1/g” ifcfg-eth0 > ifcfg-eth1 yum -y install qemu-kvm qemu-img libvirt virt-install bridge-utils lsmod | grep kvm systemctl start libvirtd systemctl enable libvirtd RHEL 7 notes To list all currently loaded service units: systemctl list-units –type service To list all installed service units: systemctl list-unit-files –type service Lists currently loaded target units: systemctl list-units –type target Changes the current target: […] |
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