How to Fix My SSD Partition with "Unknown Format"

Here is the outcome:

Last login: Sun May  3 19:39:37 on ttys000

Murats-MacBook-Pro:~ muratsenocak$ sudo fsck_apfs -n -l /dev/rdisk3

Password:

** Checking volume.

** Checking the container superblock.

** Checking the EFI jumpstart record.

error: (oid 0x1a599) cib: invalid o_cksum (0x0)

error: failed to read spaceman cib 0x1a599

** Checking the space manager.

   Space manager is invalid.

** The volume /dev/rdisk3 could not be verified completely.

Murats-MacBook-Pro:~ muratsenocak$ 

Last login: Sun May  3 19:55:58 on ttys000

Murats-MacBook-Pro:~ muratsenocak$ diskutil unmountDisk disk1

Unmount of disk1 failed: at least one volume could not be unmounted

Unmount was dissented by PID 0

Murats-MacBook-Pro:~ muratsenocak$ sudo fsck_apfs -s -o -y /dev/rdisk3

Password:

fsck_apfs: invalid option -- s

usage: fsck_apfs [-q | -n | -y] [-l] device

       -l            live fsck (lock down for verify-only)

       -q            quick check if the superblock and checkpoint superblock are valid.

       -y            always repair (answer "yes" to questions)

       -n            verify only (answer "no" to questions)

Murats-MacBook-Pro:~ muratsenocak$ 

I tried it and got this output:

Last login: Sun May  3 23:13:53 on ttys000
Murats-MacBook-Pro:~ muratsenocak$ sudo fsck_apfs -y /dev/rdisk3
Password:
** Checking volume.
** Checking the container superblock.
** Checking the EFI jumpstart record.
** Checking the space manager.
error: (oid 0x1a599) cib: invalid o_cksum (0x0)
error: failed to read spaceman cib 0x1a599
   Space manager is invalid.
** The volume /dev/rdisk3 could not be verified completely.
Murats-MacBook-Pro:~ muratsenocak$ 

However I tried a lot to mount disk 3 but it failed every time. So it is already unmounted. Maybe this is the problem.

Sorry, but I don't. And here in Istanbul, people mostly use Windows, so I don't think I can find any other Mac around. You've worked so hard on this stubborn SSD. I hope we can fix it, or else I don't really know what to do. Because I tried to erase and reformat the empty 3gb partition in this very disk, but it failed. I think it will be difficult to erase and use it in the future too if I can't do anything.

I can no one around who has a mac actually. If a find any, I'll let you know. If I can't within a couple of days probably I'll try to patch because I need to proceed writing my dissertation as soon as possible, and the softwares are way more expensive than the SSD. By the way there is nothing in the new SSD so there is not much risk upgrading I guess. After I finish, I can figure out how to downgrade maybe. If I were where you live I would find a friend but here this is my only option.

Hey. Good to see you again, Loner. Thanks. Here is the output for diskutil list:

Last login: Mon May  4 16:33:28 on ttys001

MacBook-Pro:~ muratsenocak$ diskutil list

/dev/disk0 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *240.1 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                 Apple_APFS Container disk3         219.8 GB   disk0s2

   3:           Linux Filesystem                         15.8 GB    disk0s3

   4:                  Apple_HFS Untitled 3              3.9 GB     disk0s4



/dev/disk1 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *500.1 GB   disk1

   1:                        EFI EFI                     209.7 MB   disk1s1

   2:                 Apple_APFS Container disk2         499.9 GB   disk1s2



/dev/disk2 (synthesized):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      APFS Container Scheme -                      +499.9 GB   disk2

                                 Physical Store disk1s2

   1:                APFS Volume Untitled 1              47.7 GB    disk2s1

   2:                APFS Volume Preboot                 22.7 MB    disk2s2

   3:                APFS Volume Recovery                507.4 MB   disk2s3

   4:                APFS Volume VM                      3.6 GB     disk2s4



/dev/disk3 (synthesized):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      APFS Container Scheme -                      +219.8 GB   disk3

                                 Physical Store disk0s2

   1:                APFS Volume Macintosh SSD           208.6 GB   disk3s1

   2:                APFS Volume Preboot                 22.7 MB    disk3s2

   3:                APFS Volume Recovery                512.1 MB   disk3s3

   4:                APFS Volume VM                      4.3 GB     disk3s4

If I can fix my corrupted SSD with your assistance, I'll use it, on which high Sierra is installed. I mean I'll delete mojave installed SSD and use it for data storage.

Here is the output:

Last login: Tue May  5 01:18:39 on ttys001
MacBook-Pro:~ muratsenocak$ sudo fsck_apfs -s -o -y /dev/rdisk3
Password:
dev_init:607: Using /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/fsck_apfs.42290.1/apfs and /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/fsck_apfs.42290.1/nx for device-io.
** Checking the container superblock.
** Checking the EFI jumpstart record.
** Checking the space manager.
error: (oid 0x1a599) cib: invalid o_cksum (0x0)
error: failed to read spaceman cib 0x1a599
   Space manager is invalid.
** The volume /dev/rdisk3 could not be verified completely.
MacBook-Pro:~ muratsenocak$ 

Yes, Mojave is in the Seagate Barracuda, but it is inside the laptop in the primary hard drive bay. The Macintosh SSD (disk3s1) that we're trying to get working properly is installed instead of the optical drive. So, does disconnect mean literally "take it out" or something like unmount? I can be confused with terms now and then because while English is not my native language, what we are speaking to fix a mac is another language.

I have a copy of it. As far as I understand you are recommending me to boot from the installer and select the SSD part that we have been dealing with and reinstall HS on it. That way the SSD will open with HighSierra without losing any data. Am I right?

Here in Istanbul, there is no technical support provided by Kingston. When I go to the contact page of kingston, technical support for Turkish customers in only in English, which is not problem until when I realize that the number provided for us starts with the country code +1 which, you know, is the United States. And there is no guarantee that they can fix it. Also probably it costs a lot. Apfs recovery tools are also very expensive. The one iboysoft data recovery accesses all my data with the exact paths, but it is $100, which I cannot afford. I hope I can find a way out of this. I will look for someone specialized in apple software that hopefully gives me online support, teamviewing maybe. If this does not solve my problem, then I'll buy a software to recover my files. This will be my last option. By the way thank you a lot for devoting great deal of your time and effort on this for many days since the first time I identified my problem. We've come a long way to fix this. We're almost there actually. I think from this point there are certain ways to get my files back. Thank you again.

To be able to use paragon apfs for windows i agues i need to remove the SSD from optical drive and connect with a data cable to another laptop. Instead of removing it out, can i use parallels windows on mac as an option. Or dual boot maybe?