incorrect super block, can't mount / drive

[nick122147]

Yesterday I suddenly couldn't start any new programs, then I tried a restart. But it would not start back up. I have already verbose booting enabled, efi is saying something like "cannot get file size info".
When booting from a Mac install disk disk utility says it cannot repair this drive. Mount command says incorrect super block. Mount_hfs command says "invalid input".
Any other way I can try repairing the superblock?
Could it be a hardware fault? It is a kingspec 256GB ssd drive.

Thanks !

 

[nick122147]

tried fsck_hfs when botted up from an usb drive. this is what I get:

sudo fsck_hfs -d -f /dev/disk2s1
** /dev/rdisk2s1
Using cacheBlockSize=32K cacheTotalBlock=16384 cacheSize=524288K.
Executing fsck_hfs (version diskdev_cmds-491~1).
Block 2 is not an MDB or Volume Header
Block 503676921 is not an MDB or Volume Header
unknown volume type
primary MDB is at block 0 0x00
alternate MDB is at block 0 0x00
primary VHB is at block 0 0x00
alternate VHB is at block 0 0x00
sector size = 512 0x200
VolumeObject flags = 0x01
total sectors for volume = 503676923 0x1e057ffb
total sectors for embedded volume = 0 0x00
CheckForClean - unknown volume type

 

[satcomer]

Try to get data of that drive! Plus see if you can run either DiskWarrior or Drive Genius on it.

 

[nick122147]

Try to get data of that drive! Plus see if you can run either DiskWarrior or Drive Genius on it.

I managed to get some data of the drive with disk rescue 2. Together with a 3 weeks old backup I don't seem to have lost anything.
I have now reinstalled into the same drive and everything seems to be working fine. I will keep a close eye on the ssd drive with regular backups.

It happened after unplugging a midikeyboard and soundcard kind of at the same time as closing the screen/going to sleep mode. Not sure how that can have caused this.

Thanks.