This system requires a 60W power adapter to charge properly.” Also, “There may be an issue with the power adapter.” ran with laptop unplugged and saw “A 45W power adapter is connected.I attempted to reinstall the operating system again but the installation would not progress at all. For both a regular startup and startup in safe mode it would not progress the apple logo with a full progress bar (I let it go for 2 days). Now I cannot get it to fully boot or really do much of anything. I somehow managed to reinstall the operating system (I don't recall which version but I do NOT believe it was Catalina). Lots of info but the bits that look concerning indicate 'failed to locate mount-on path' and 'failed to mount'. I somehow ended up restarting in some sort of terminal mode.

I attempted to install OS X Mavericks and received the error: 'Volume contains a macOS or OS X installation which may be damaged.' The bless tool was unable to set the current boot disk.' I selected the only available disk received an error: 'You can't change the startup disk to the selected disk. First Aid indicated the volume could not be verified, gave a file system check exit code of 8, and indicated that the First Aid process had failed.Īt one point I ended up on a screen to Choose Startup Disk.

My 13-inch, Mid 2012 MacBook Pro was being very temperamental a few weeks back (any open apps would freeze immediately upon startup).

Mac volume could not be unmounted