Irregular Expressions:

ext explanation

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August 23, 2011  9:12 PM

The EXT file system – Part 3



Posted by: Dan O'Connor
block bitmap, ext explanation, group descriptor tables, inode bitmap, super block

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...

August 19, 2011  10:01 PM

The EXT file system – Part 2



Posted by: Dan O'Connor
block bitmap, ext explanation, group descriptor tables, inode bitmap, super block

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...


August 16, 2011  11:34 PM

The EXT file system – Part 1



Posted by: Dan O'Connor
block bitmap, ext explanation, group descriptor tables, inode bitmap, super block

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...


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