Hi,   during the re-boot after the 6.7.0 upgrade the machine hung during BIOS boot and needed to be turned off again. When 6.7.0 came up it reported Disk 17 as "Unmountable: No file system" with the following errors in the log:   May 21 12:24:14 SS kernel: XFS (md17): Internal error xlog_valid_rec_header(2) at line 5283 of file fs/xfs/xfs_log_recover.c. Caller xlog_do_recovery_pass+0xc7/0x514 [xfs] May 21 12:24:14 SS kernel: CPU: 2 PID: 14488 Comm: mount Not tainted 4.19