December 2002
Intermediate to advanced
260 pages
9h 18m
English
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Creating an ext3 Partition
You can create ext3 partitions by adding parameters to the mke2fs command. Executing mke2fs -j creates an ext3 filesystem. For example:
# mke2fs -j /dev/md0The program mkfs.ext3 is equivalent to executing mke2fs -j.
The size of the journal can be fine-tuned, but must be a minimum of 1024 blocks and cannot exceed 102,400 blocks. If you are using a block size of 2048 bytes, the minimum usable journal size is 2 MB and the maximum is 200 MB. By default, 8192 blocks are allocated (32 MB when using a 4 KB block size). The default block size for an ext3 filesystem, as for an ext2 filesystem, is 4096 bytes. Thus, the following example creates an ext3 filesystem with a journal size of 16 MB (4096 blocks * 4096 bytes per block).
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