Resizing Ext3

• Before changing a file system it should be unmounted, so you'll need to create working standalone boot disks. The CentOS LiveCD would be a good choice. An ext3 filesystem can supposedly be expanded with resize2fs while mounted, but standalone would be safer.

• A few ways you can do it:
  1. resize2fs
  2. parted
  3. Partition Magic 7.x

• In all cases, first convert ext3 --> ext2: [Note: resize2fs works with ext3.]

tune2fs -O ^has_journal /dev/hdax
e2fsck -v -f /dev/hdax

• Resize the partitions with tool of choice.

convert back to ext3
tune2fs -j /dev/hdax
e2fsck -v -f /dev/hdax

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