High Sierra upgrade fail -69842

Question

Created Oct ’17

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Hi,fellas,I upgrade my MBP(2014 retina) to 10.13 but fail,I want to rescure my data in the harddisk,so I came in terminal by "Cmd+R", try to use external drive copy the data from MBP. now the problem is when i typo 'diskutil apfs list' , 'Mount Point' option is 'Not Mounted',then I use 'diskutil apfs unlockVolume disk1s1 ',the result is 'Coundn't mount disk(-69842)' , any help , thank you!!

Container disk3 5C2B9836-B14E-469D-B25E-62EAACF9F65F

====================================================

APFS Container Reference: disk3

Capacity Ceiling (Size): 499418034176 B (499.4 GB)

Capacity In Use By Volumes: 295476088832 B (295.5 GB) (59.2% used)

Capacity Available: 203941945344 B (203.9 GB) (40.8% free)

|

+-< Physical Store disk2s2 325F785A-A7BD-4601-A767-93A4B132F785

| -----------------------------------------------------------

| APFS Physical Store Disk: disk2s2

| Size: 499418034176 B (499.4 GB)

|

+-> Volume disk3s1 A0A4DE51-5584-31D1-A992-4264CD8A4539

| ---------------------------------------------------

| APFS Volume Disk (Role): disk3s1 (No specific role)

| Name: MyStorage (Case-insensitive)

| Mount Point: Not Mounted

| Capacity Consumed: 294785605632 B (294.8 GB)

Answer 1

wh007 OP

Oct ’17

oumatoMacBook-Air:~ wh007$ diskutil apfs updatePreboot /dev/disk3s1

Started APFS operation

UpdatePreboot: Commencing operation to update the Preboot Volume for Target Volume disk3s1 MyStorage

UpdatePreboot: The Target Volume's OpenDirectory (non-special kind) user count is 1 and the Recovery (any of 3 kinds) user count is 1

UpdatePreboot: No custom Open Directory path given

UpdatePreboot: Using GivenVolumeMountPointOrNilIfNotMounted for the MacOSSearchPath

UpdatePreboot: Using MacOSSearchPath's child dslocal path for the OpenDirectorySearchPath

UpdatePreboot: MacOS Search Path = (nil=NotMounted) = (null)

UpdatePreboot: Open Directory Database Search Path = (nil=MacOSSearchPathNotMounted) = (null)

UpdatePreboot: Unable to open Open Directory database; setting AuthODNodeOrNil accordingly

UpdatePreboot: Mounting and ensuring as mounted the related Preboot Volume

UpdatePreboot: Exiting Update Preboot operation with overall error=(0=success)=-69854

Error: -69854: A disk with a mount point is required