You might get more information by using the dmesg command after a mount attempt Unable to mount cifs share via command line, for example Do you have an /etc.
How to fix Cannot restore system -- mounted read only in TWRP
Check for file system errors
Run the fsck command to check for errors in the file system and fix them
You can use the following command Sd card will not mount and shows as read only in disks forum rules before you post read how to get help Topics in this forum are automatically closed 6 months after creation. Whether you're an experienced system administrator or a new linux user, mastering this operation can help you maintain a stable and secure environment.