Disk management
fdisk -l view hard disk
1 fdisk /dec/sdb hard disk partition
m for help
n New partition p Primary partition 1 +10G w Save and exit q Exit without saving
MBR mode: Mater Boot Record master boot record single hard disk can not exceed 2TB, more than can not be used can only be divided into four primary partitions
3P +1E (Logical logical partition volume) extended partition Primary partition plus logic to drive up to 15 extended partitions cannot be used directly and need to be repartitioned, occupying one partition
The first logical drive must start at 5
(rhel 7 gdisk==gpt fdisk gpt 128 primary partitions A single hard disk supports more than 2TB
rhel6 parted mklabel gpt )
2 Format the partition
The disk has a partition mounted, after the new partition, you must execute partprobe /dev/sdb2 to format the partition to take effect
mkfs.ext4 /dev/sdb1 format, support up to 16T partition format
3 Need to mount to use munt /dev/sdb1 /video
4 Uninstall
umount /dev/sdb1 or /video
5 vim / etc / fstab permanent mount wrong system may not get up
blkid query UUid will not change, drive letter may change
UUID or /dev/sdb1 /vedio ext4 defaults 0 0 (CD drive format iso9660)
It is best to copy iso to linux and mount it to avoid loss of CD
/isos/RHEL7OSP-6.0-2015-02-23.2-x86_64.iso /var/www/html/openstack iso9660 defaults 0 0
mount -a mount all devices in /etc/fstab
fsck -v /dev/sdb1 Check and repair the file system exs4
xfs_repair /dev/sdb1 for xfs system
Two KVM Management Kernel-based Virtual Machine Kernel-based Virtual Machine
1 cpu must support VT-X
2 Enable this function in BIOX Physical machine
3 Virtualization software 64OS must be installed
4 Install KVM. By default, there is no bridge mode graphical interface to use KVM graphical management tools.
yum groupinstall "Virtualization*"
systemctl restart libvirtb.service to start the service
5 Configure bridge mode
1 copy network card files
Modify the following content and other unchanged
TYPE=Bridge
NAME=br0
DEVICE=br0
Original physical network card
Add a line BRIDGE=br0
systemctl restart network
brctl show view bridge