User Profile

I have a 4TB external drive. There are two partitions, 1 is 3TB and was converted from HFS+ Encrypted to APFS Encrypted (worked fine, it did have old Time Machine backups on it though), and I created a second bootable Sierra 10.12 install via createinstallmedia on the other one. After using the disk to install Sierra on a Macmini, the other partition no longer shows up.In 10.13 in Disk Utility, it shows it's an APFS on the pie chart, but the format is blank/not recognised. It's not recognised, won't mount or anything because something is corrupted. In fsck_apfs below you can see the hex "Invalid partition table. Error loading operating system Missing operating system" which doesn't make sense to me at all. So I don't know what happened to the container. Would createinstallmedia cause the issue?diskutil list/dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *4.0 TB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_APFS 3.0 TB disk2s2 3: Apple_Boot Boot OS X 134.2 MB disk2s3 4: EFI NO NAME 104.9 MB disk2s4 5: EFI NO NAME 104.9 MB disk2s5 6: Apple_APFS 799.8 GB disk2s6 /dev/disk3 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme +799.8 GB disk3 /dev/disk3s1 (external, virtual): #: TYPE NAME SIZE IDENTIFIER 0: APFS Volume Empty +880.6 KB disk3s1sudo fsck_apfs /dev/disk2s20000: 33c0 8ed0 bc00 7c8e c08e d8be 007c bf00 |3...............| 0010: 06b9 0002 fcf3 a450 681c 06cb fbb9 0400 |.......Ph.......| 0020: bdbe 0780 7e00 007c 0b0f 8510 0183 c510 |................| 0030: e2f1 cd18 8856 0055 c646 1105 c646 1000 |.....V.U.F...F..| 0040: b441 bbaa 55cd 135d 720f 81fb 55aa 7509 |.A..U...r...U.u.| 0050: f7c1 0100 7403 fe46 1066 6080 7e10 0074 |....t..F.f.....t| 0060: 2666 6800 0000 0066 ff76 0868 0000 6800 |.fh....f.v.h..h.| 0070: 7c68 0100 6810 00b4 428a 5600 8bf4 cd13 |.h..h...B.V.....| 0080: 9f83 c410 9eeb 14b8 0102 bb00 7c8a 5600 |..............V.| 0090: 8a76 018a 4e02 8a6e 03cd 1366 6173 1efe |.v..N..n...fas..| 00a0: 4e11 0f85 0c00 807e 0080 0f84 8a00 b280 |N...............| 00b0: eb82 5532 e48a 5600 cd13 5deb 9c81 3efe |..U2..V.........| 00c0: 7d55 aa75 6eff 7600 e88a 000f 8515 00b0 |.U.un.v.........| 00d0: d1e6 64e8 7f00 b0df e660 e878 00b0 ffe6 |..d........x....| 00e0: 64e8 7100 b800 bbcd 1a66 23c0 753b 6681 |d.q......f..u.f.| 00f0: fb54 4350 4175 3281 f902 0172 2c66 6807 |.TCPAu2....r.fh.| 0100: bb00 0066 6800 0200 0066 6808 0000 0066 |...fh....fh....f| 0110: 5366 5366 5566 6800 0000 0066 6800 7c00 |SfSfUfh....fh...| 0120: 0066 6168 0000 07cd 1a5a 32f6 ea00 7c00 |.fah.....Z2.....| 0130: 00cd 18a0 b707 eb08 a0b6 07eb 03a0 b507 |................| 0140: 32e4 0500 078b f0ac 3c00 74fc bb07 00b4 |2.........t.....| 0150: 0ecd 10eb f22b c9e4 64eb 0024 02e0 f824 |........d.......| 0160: 02c3 496e 7661 6c69 6420 7061 7274 6974 |..Invalid.partit| 0170: 696f 6e20 7461 626c 6500 4572 726f 7220 |ion.table.Error.| 0180: 6c6f 6164 696e 6720 6f70 6572 6174 696e |loading.operatin| 0190: 6720 7379 7374 656d 004d 6973 7369 6e67 |g.system.Missing| 01a0: 206f 7065 7261 7469 6e67 2073 7973 7465 |.operating.syste| 01b0: 6d00 0000 0062 7a99 90e1 0713 0000 0000 |m....bz.........| 01c0: 0000 0000 0000 0000 0000 0000 0000 0000 |................| . . . 01f0: 0000 0000 0000 0000 0000 0000 0000 55aa |..............U.| 0200: 0000 0000 0000 0000 0000 0000 0000 0000 |................| . . . 03d0: 0000 0000 0000 0000 385b 3d00 0000 0000 |........8.......| 03e0: 0000 0000 0000 0000 0000 0000 0000 0000 |................| . . . 04f0: 0400 0000 0000 0000 4b6e 0000 0000 0000 |........Kn......| 0500: 0000 0000 0000 0000 0000 0000 0000 0000 |................| 0510: bb6e 0000 0000 0000 0100 0000 0000 0000 |.n..............| 0520: 0100 0400 0800 0000 0000 0000 0000 0000 |................| 0530: 0000 0000 0000 0000 0000 0000 0000 0000 |................| . . . 0ff0: 0000 0000 0000 0000 0000 0000 0000 0000 |................| error: Device does not contain a valid APFS container.