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ext3

The ext3 or third extended filesystem is a journaled file system that is commonly used by the Linux kernel.It’s main advantage is journaling which improves reliability and eliminates the need to check the file system after an unclean shutdown.

Create partiton before format to ext3:

$ fdisk /dev/sdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.


The number of cylinders for this disk is set to 4865.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-4865, default 1): 1
Last cylinder or +size or +sizeM or +sizeK (1-4865, default 4865): +500M

Command (m for help): t
Partition number (1-4): 1
Hex code (type L to list codes): 83

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

$ mkfs.ext3 -b 4096 /dev/sdb1

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