linux etc hosts format

The elf file (target file) format is mainly three kinds:1) can redirect files : The file holds the code and the appropriate data, which is used to create an executable file or a shared target file together with other target files. (The target file or the static library file, which is usually a file with a. A and. o suffix of Linux)2) executable file : The file holds a program to execute. (e.g. BASH,GCC,

Linux partitions, formatted, mounted commands Although Linux has been playing, but the hard drive is not very familiar with the operation, today is free, on the collation of the next. 1, zoning Fdisk-l You can see the hard drive information, like/dev/sda,/dev/vda,/dev/hda. SD is the SCSI port hard drive, SDA is the first block, SDB is the second block. HD is IDE port hard disk, VD is virtual hard disk

need to mount to use. But before it is mounted, it must be formatted before it can be done.2. Formatting partitions1) fdisk-l |grep SD View partition statusor fdisk-l.2) Create data store directory, store path customizationMkdir-p/openstack/glanceMkdir-p/openstack/mysqlMkdir-p/openstack/data......3) format the disk that you just partitionedMKFS.XFS/DEV/SDB1 Formatting SDB1 disksMKFS.XFS/DEV/SDB2 Formatting SDB2 disksMkfs.xfs/dev/sdb3......4) Vim/

Usually in addition to the disk or new system, it is essential to format the disk, partition, mount the partition. Played Ali and other virtual host friends know that the data disk is required to partition and mount, for the novice is indeed a difficult problem, special note, for reference. Use the DF-LH command to see that the system has only a system disk. Using Fdisk-l to view the disk situation, you can see from the following figure that there

1. View the partition information:[Email protected]/]# fdisk-ldisk/dev/vdb:209.7 GB, 209715200000 bytesHeads, Sectors/track, 406349 cylindersUnits = Cylinders of 1008 * 516096 bytesSector size (logical/physical): bytes/512 bytesI/O size (minimum/optimal): bytes/512 bytesDisk identifier:0x000000002, hard disk partition:[Email protected]/]# FDISK/DEV/VDBCommand (M for help): M Command Action a toggle a bootable flag b Edit BSD disklabel d Delete a partition nbsp; l list known partition type