1. Release Notes for Oracle Linux 8.10
  2. Known Issues
  3. File System Issues

File System Issues

The following are known file systems issues that have been encountered in this release of Oracle Linux 8.

BTRFS File System Not Supported on RHCK

The Btrfs file system is removed from RHCK in Oracle Linux 8, which means you cannot create or mount this file system when using this kernel. Also, any Btrfs user space packages that are provided are not supported with RHCK.

Support for the Btrfs file system is enabled in UEK R7 and UEK R6. Starting with Oracle Linux 8.3, during an installation, you have the option to create a Btrfs root file system, as well as select Btrfs as the file system type when formatting devices.

For further details about these changes, see the following documentation:

OCFS2 File System Not Supported on RHCK

The OCFS2 file system is removed from RHCK in Oracle Linux 8, which means you cannot create or mount this file system when using this kernel. Also, OCFS2 user space packages that are provided are not supported with RHCK.

Note that support for OCFS2 file systems is enabled in UEK R7 and UEK R6. For the latest information and other enhancements that have been made to OCFS2 in UEK R6, see Unbreakable Enterprise Kernel Release 6 Update 3: Release Notes (5.4.17-2136). See also Unbreakable Enterprise Kernel Release 7: Release Notes (5.15.0-0.30).

ext4: Frequent or repeated system shutdowns can cause file system corruption

If a system that is using the ext4 file system is repeatedly or frequently shut down, the file system might become corrupted. This issue is difficult to replicate and is therefore considered to be a corner-case issue. The issue exists in the upstream code and proposed patches are currently under review.

(Bug ID 27547113)

Systems With Btrfs Fail to Boot in FIPS Mode

When booted in FIPS mode, a system using Btrfs fails with the following message:

FATAL: FIPS integrity test failed
Refusing to continue

Bug ID 36028061