{"id":332,"date":"2018-01-23T02:44:24","date_gmt":"2018-01-23T06:44:24","guid":{"rendered":"http:\/\/blogs.tulsalabs.com\/?p=332"},"modified":"2025-11-12T02:24:49","modified_gmt":"2025-11-12T06:24:49","slug":"3tb-disk","status":"publish","type":"post","link":"http:\/\/blogs.tulsalabs.com\/?p=332","title":{"rendered":"3TB Disk"},"content":{"rendered":"

I bought an external 3TB disk and wanted to attach it to an old Airport Extreme. It wouldn’t see the disk. Turns out the disk is formatted for windows.<\/p>\n

Okay, Diskutil to the rescue!<\/p>\n

Not, I kept getting:<\/p>\n

Running operation 1 of 1: Erase \u201cUntitled\u201d\u2026<\/strong>
\nUnmounting disk<\/strong>
\nMediaKit reports not enough space on device for requested operation.<\/strong>
\nOperation failed\u2026<\/strong><\/p><\/blockquote>\n

A quick consultation of the Internet Oracle turned up:<\/p>\n

MediaKit reports not enough space on device for requested operation.<\/a><\/p>\n

Okay, but I wanted case sensitive, so:<\/p>\n

loghyr:~ loghyr$ diskutil list<\/strong>
\n\/dev\/disk0 (internal, physical):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: GUID_partition_scheme *1.0 TB disk0<\/strong>
\n 1: EFI EFI 209.7 MB disk0s1<\/strong>
\n 2: Apple_APFS Container disk3 1000.0 GB disk0s2<\/strong><\/p>\n

\/dev\/disk1 (internal, physical):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: GUID_partition_scheme *1.0 TB disk1<\/strong>
\n 1: EFI EFI 209.7 MB disk1s1<\/strong>
\n 2: Apple_APFS Container disk2 1000.0 GB disk1s2<\/strong><\/p>\n

\/dev\/disk2 (synthesized):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: APFS Container Scheme – +1000.0 GB disk2<\/strong>
\n Physical Store disk1s2<\/strong>
\n 1: APFS Volume EVO1 703.1 GB disk2s1<\/strong><\/p>\n

\/dev\/disk3 (synthesized):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: APFS Container Scheme – +1000.0 GB disk3<\/strong>
\n Physical Store disk0s2<\/strong>
\n 1: APFS Volume EVO2 157.6 GB disk3s1<\/strong>
\n 2: APFS Volume Preboot 19.6 MB disk3s2<\/strong>
\n 3: APFS Volume Recovery 506.6 MB disk3s3<\/strong>
\n 4: APFS Volume VM 3.2 GB disk3s4<\/strong><\/p>\n

\/dev\/disk4 (external, physical):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: GUID_partition_scheme *3.0 TB disk4<\/strong>
\n 1: Apple_HFS 3.0 TB disk4s1<\/strong><\/p>\n

loghyr:~ loghyr$ diskutil unmountDisk force disk4<\/strong>
\nForced unmount of all volumes on disk4 was successful<\/strong><\/p>\n

loghyr:~ loghyr$ sudo dd if=\/dev\/zero of=\/dev\/disk4 bs=1024 count=1024<\/strong>
\n1024+0 records in<\/strong>
\n1024+0 records out<\/strong>
\n1048576 bytes transferred in 0.452265 secs (2318499 bytes\/sec)<\/strong><\/p><\/blockquote>\n

Here is where I differ from the link:<\/p>\n

loghyr:~ loghyr$ diskutil partitionDisk disk4 GPT JHFSX MacBackAttack 0g<\/strong>
\nStarted partitioning on disk4<\/strong>
\nUnmounting disk<\/strong>
\nCreating the partition map<\/strong>
\nWaiting for partitions to activate<\/strong>
\nFormatting disk4s2 as Mac OS Extended (Case-sensitive, Journaled) with name MacBackAttack<\/strong>
\nInitialized \/dev\/rdisk4s2 as a 3 TB case-sensitive HFS Plus volume with a 229376k journal<\/strong>
\nMounting disk<\/strong>
\nFinished partitioning on disk4<\/strong>
\n\/dev\/disk4 (external, physical):<\/strong>
\n #: TYPE NAME SIZE IDENTIFIER<\/strong>
\n 0: GUID_partition_scheme *3.0 TB disk4<\/strong>
\n 1: EFI EFI 209.7 MB disk4s1<\/strong>
\n 2: Apple_HFS MacBackAttack 3.0 TB disk4s2<\/strong><\/p><\/blockquote>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

I bought an external 3TB disk and wanted to attach it to an old Airport Extreme. It wouldn’t see the disk. Turns out the disk is...<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,18],"tags":[],"class_list":["post-332","post","type-post","status-publish","format-standard","hentry","category-macs","category-tricks"],"_links":{"self":[{"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/posts\/332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=332"}],"version-history":[{"count":4,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions"}],"predecessor-version":[{"id":336,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=\/wp\/v2\/posts\/332\/revisions\/336"}],"wp:attachment":[{"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=332"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.tulsalabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}