Tagged Questions
24
votes
6answers
2k views
How do I know if a partition is ext2, ext3, or ext4?
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
Now, how do I know the kind of file system in a partition?
5
votes
1answer
1k views
largefile feature at creating file-system
Is useful to use -T largefile flag at creating a file-system for a partition with big files like video, and audio in flac format?
I tested the same partition with that flag and without it, and using ...
2
votes
1answer
343 views
Ext4 support in Grub 0.9X (legacy) and Grub 1.9X (Grub2)
I'm about to setup my new USB key with Grub or Grub2. In the old days I used ext2 for the boot partition.
I'm wondering if I could use ext4 for Grub2?
And if use Grub 0.9X, what about support of ...
5
votes
3answers
409 views
ext2/3/4 reserved blocks percentage purpose
I know that this feature dates back 20 years but I still would like to find out
What is the purpose of the reserved blocks in ext2/3/4 filesystems?
1
vote
1answer
3k views
disabling journal vs data=writeback in ext4 file system
What is the difference between disabling journal on ext4 file system using:
tune2fs -O ^has_journal /dev/sda1
and using data=writeback when mounting? I thought ext4 - journal = ext2. means when we ...
6
votes
1answer
474 views
How are files laid out in ext2/ext3/ext4?
A few days ago all my metadata on a ext4 format flash card was overwritten.
I am now going to speculate on how this happened. This is pure speculation. It happened just after I used a different ...
5
votes
2answers
326 views
Defragging an ext partition?
Why don't ext2/3/4 need to be defragmented? Is there no fragmentation at all?
