Language Selection

English French German Italian Portuguese Spanish

Migrating a live system from ext3 to ext4 filesystem

Filed under
HowTos

This article is meant to serve as a guide for migrating a live system from ext3 to an ext4 filesystem, including migration of files to use extents, a major feature in ext4. It describes the entire migration procedure, including common pitfalls involving a migration of a live system, as opposed to doing a fresh install.

Reasons for conversion

The explanation of advantages and disadvantages of ext4 is beyond the scope of this article. If you are not affected by the limitations of ext3, and not willing to take risks, it may not be worth it. On the other hand, on successful completion of the migration procedure your system may perform faster, experience shortened file system checks, and have increased reliability with no ill effects.

Migrating to ext4

Word of warning

Do a backup before attempting this procedure. It may render your system unbootable, and may destroy your data.

rest here




More in Tux Machines

4 things governments need to know to adopt open source cloud - Red Hat

Open source cloud platforms, like OpenStack, can allow public sector agencies to connect systems and share data easily. Here are four things governments need to know to make open source cloud a success. Read more

Open source key to preserving human history, argues Vatican

Ammenti explained that, in order for the manuscripts to be readable, the Vatican Library opted for open source tools that do not require proprietary platforms, such as Microsoft Office, to be read. "We save it as a picture as it's longer life than a file. You don't rely on PowerPoint or Word. In 50 years they can still just look at it," he said. Read more

Open Source Router Connects US, Australia

The ONOS Project and partners said Wednesday they have demonstrated the real-world practicality of using a router with open source software to connect networks in Australia and the US. The test validates the vision of SDN, open source for carriers, as well as ON.Lab's ONOS network operating system, according to one of its coordinators. "SDN is about disaggregation of closed, proprietary boxes and separating of forwarding planes, control planes and applications," says Guru Parulkar, executive director and board member of ON.Lab , which coordinates ONOS development. The communications test between Australia and the US achieved just that, he says. (See ON.Lab Aims to Make White Boxes Carrier-Grade , ON.Lab Intros Open Source SDN OS and SK Telecom Bets on SDN for Wireless.) Read more

Xubuntu Core 15.04 Officially Released, Not Related to Ubuntu Core

A new official Xubuntu flavor called "core" has been announced by developers. It's based on Ubuntu, and it integrates the Xfce desktop environment and nothing else. Read more