Linux file __linux

1.windows and Linux file system differences Windows file System 98 and before Fat NTFS, while Linux is ext2 ext3 ext4

2.EXT2 File System Analysis:

(1) schematic diagram

(2) Interpretation of each block

1.Data block, area where block is stored

2.inode table stores the area of the Inode

3.superblock

4.Filesystem Description

Log information for each block group, such as location

5.block bitmap

Record that block is empty.

6.inode bitmap

Record that the inode is not used

3. Solve the problem of etx2 file discretization, copy the entire file system, then format the current file system, and then put the file into