group descriptor tables

The EXT file system – Part 3

We also have to deal with the block pointers in the inodes.  Each inode can store the address of 12 blocks to store the data.  So what happens when you need more then 12 blocks to store the data? You use indirect block pointers, instead of pointing at blocks of data.  You point at blocks that...

The EXT file system – Part 2

The still short version of what happens when you need locate a file on the system is the following;

• The SuperBlock is read, to collect information about the file system.
• Next to the Group Descriptor Table (After the SuperBlock on the disk), collection of information about the...

The EXT file system – Part 1

Partitions are just fine, but how does the system get to a file on the disk? On a EXT based system, the short answer is the information is stored in the Inode Table. That really does not mean much if you don't have understanding of what the filesystem looks like. A little explanation is...