SSD only appears during the MacOS Installation

[vinniedeoliveira]

Dear friends,

I have a SSD SanDisk 240 GB as boot drive at a MacBook Pro Early 2011. The original HD is Toshiba and still works with OS High Sierra as backup (ufaaaa!!!)

Since last Thursday night the SSD can't do the right boot. All data appears be OK inside but I cannot have access via the second drive. The SSD seams be locked. When I open the Disk Utility I can see the SSD but I don't have access. If I do Command+R on startup and I force to install the Mac OS High Sierra I can see the data on SSD.

I cannot format the disk because my Time Machine is not updated. I work with video and I had a capture during the week.

I've tried Disk Drill to help me but didn't solved.

It seems something easy but I don't know how to unlock on the system. The best tutorial that I've found was this one here: https://derflounder.wordpress.com/2...rypted-apfs-boot-drive-from-the-command-line/

I inserted screens from Disk Utility and from Terminal when I've done the command "diskutil list" .

Someone have a clue to help me?

Big hugs for all!!

 

[treekram]

Since you can use Terminal, type the following command into it:

diskutil info /dev/disk0

Look at the results. Toward the bottom (so you don't have to worry about what flies by), look at "Read-Only Media". Does it say "Yes".

Then enter the command except substitute disk0 with disk0s1, then disk0s2, disk2, disk2s1, disk2s2, disk2s3, disk2s4. You're looking at the same "Read-Only" line - so how many say "Yes".

If these all say "Yes", your SSD has probably gone into read-only mode because it found some problem. In looking at my APFS disks and also an encrypted non-APFS disk, these all say "No" and I believe they should if they're working properly. So your SSD was encrypted? I would guess that from the link you posted? If so, did the enter password box appear when you were booting?

It's not good that the volume name for disk2s1 is blank. Could you post the results from the following command:
diskutil info /dev/disk2s1

Also the results from
diskutil apfs list