Running First Aid on â LaCie Rugged USB-C Mediaâ (disk2) Checking prerequisites Checking the partition list Checking the partition map size Checking for an EFI system partition Checking the EFI system partitionâ s size Checking the EFI system partitionâ s file system Checking the EFI system partitionâ s folder content Checking all HFS data partition loader spaces Checking booter partitions Checking booter partition disk2s3 Verifying file system. Volume is already unmounted. Performing fsck_hfs -fn -x /dev/rdisk2s3 Checking Journaled HFS Plus volume. Checking extents overflow file. Checking catalog file. Checking multi-linked files. Checking catalog hierarchy. Checking extended attributes file. Checking volume bitmap. Checking volume information. The volume Boot OS X appears to be OK. File system check exit code is 0. Restoring the original state found as unmounted. Checking Core Storage Physical Volume partitions Verifying storage system Performing fsck_cs -n -x --lv --uuid B18BE0E8-F1B9-4F03-8186-A56FAF2B3A05 Checking volume disk2s2: Scan for Volume Headers disk2s2: Scan for Disk Labels Logical Volume Group B18BE0E8-F1B9-4F03-8186-A56FAF2B3A05 on 1 device disk2s2: Scan for Metadata Volume Logical Volume Group has a 24 MB Metadata Volume with double redundancy Start scanning metadata for a valid checkpoint Load and verify Segment Headers Load and verify Checkpoint Payload Load and verify Transaction Segment Incorporate 0 newer non-checkpoint transactions Load and verify Virtual Address Table Load and verify Segment Usage Table Load and verify Metadata Superblock Load and verify Logical Volumes B-Trees Logical Volume Group contains 1 Logical Volume Load and verify DC7E9170-509A-4B8E-9043-CAEA97CD76F3 Load and verify 4B79F0B4-80EC-407F-BAE1-8FB44EC10E09 Load and verify Freespace Summary Load and verify Block Accounting Load and verify Live Virtual Addresses Newest transaction commit checkpoint is valid Load and verify Segment Cleaning The volume B18BE0E8-F1B9-4F03-8186-A56FAF2B3A05 appears to be OK Storage system check exit code is 0. The partition map appears to be OK Operation successful.