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By Zayden R., July 3, 2026
The EFS file system, once used for SGI IRIX, is set for removal in Linux 7.3 after being unmaintained for over two decades. This change reflects Linux's ongoing commitment to modernize and streamline its codebase.
In a move that marks the end of an era, the EFS file system is poised for removal in the forthcoming Linux 7.3 release. This decision comes after more than two decades of the EFS file system languishing without a maintainer within the Linux kernel. Originally employed for non-ISO9660 CD-ROMs and disk partitions on SGI IRIX systems, EFS became obsolete when IRIX transitioned to the XFS file system with version 6.0.
The Linux kernel has housed a read-only EFS driver, but the lack of updates and maintenance has rendered it increasingly irrelevant. This removal is part of a broader effort to streamline the kernel by discarding outdated and unused components. For sysadmins and developers, this is a solid improvement, as it reduces the kernel's complexity and potential attack surface.
While the EFS file system may hold a nostalgic place in the hearts of some, its removal is unlikely to impact modern Linux users. The file system's original use case has long since been supplanted by more robust and actively maintained alternatives. As Linux continues to evolve, the focus remains on supporting file systems that meet contemporary needs and security standards.
For those few who might still be relying on EFS for legacy systems, now is the time to consider migration strategies. The removal of EFS is a reminder of the importance of keeping systems updated and in line with current technologies.
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