mu network: Linux Talent Formation Program <1> system zoning
system partition disk staging
Disk Staging is the partitioning of several logical portions of the disk with the partition editor. Once the disc is divided into several partitions, different categories of directories and files can be stored in separate partitions. Partition type
Primary partition: Up to one extended partition:
Extended partitions have at most one extended partition primary partition plus extended partition the maximum of 4 extended partitions cannot write data and can only be included in logical partition logical partitions
Formatting
Format (advanced format) is also called logical format, which is based on the user's selected file system (such as FAT16,FAT32,NTFS,EXT2,EXT3,EXT4, etc.), in a specific area of the disk to write specific data, in the partition of a piece for the file allocation table, Directory tables, and other disk space for file management.
1. The entire partition is written as a block of data blocks of equal size, the default 4KB
2. Partition list to establish two-dimensional table: File ID number (inode,i node), modification time, file permissions, location of File Save
Hardware Device file name
Each hardware is also a file, and the user is a file. Everything in Linux is a file.
Device filename/dev/hda1 (IDE hard Disk interface: A1 first hard drive first partition, B1 second hard disk first partition) 100m/s about transfer speed/DEV/SDA1 (SCSI hard disk interface 200m/s,sata hard disk interface 500m/s)
The area code 1 2 3 4 can only give the primary partition, the logical partition can only begin to mount in 5
Must partition
/root partition swap partition, virtual memory, less than 4G, memory twice times, 4G, memory size recommended partition
/boot boot partition, 200M enough/home to summarize.
Partition: Divide large hard drive into small logical partition format: Divide into equal size data block, build two-dimensional table, write file system partition device FileName: Define device file name mount for each partition: mount point for each partition