Unable to format an SSD drive
billy 182
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ihjzg -
ihjzg -
Hello,
I got a Samsung 840 Pro SSD for my 2011 MacBook Pro. I wanted to install it as an internal drive in place of my super drive using an adapter kit I bought online. I installed the SSD in that location and restarted my Mac from my normal drive to format the SSD from it. So the computer starts up without any problem, and I just get an error message telling me that the SSD is not recognized, which is normal since it’s not formatted yet.
I then open Disk Utility to do that; the disk appears (but not its partition), I try to format or erase it and it doesn’t work!
An error message appears either telling me "The data scan of the volume to prevent future accidental searches has failed," or that it cannot access the last blocks of the package (or something like that).
I tried using Disk Utility for recovery at MacBook startup and it’s the same thing!
What should I do? Do I have to take everything apart? (which is not easy..)
Thank you for your future replies
See you later
Configuration: Mac OS X Mountain Lion (10.8) / Firefox 21.0
I got a Samsung 840 Pro SSD for my 2011 MacBook Pro. I wanted to install it as an internal drive in place of my super drive using an adapter kit I bought online. I installed the SSD in that location and restarted my Mac from my normal drive to format the SSD from it. So the computer starts up without any problem, and I just get an error message telling me that the SSD is not recognized, which is normal since it’s not formatted yet.
I then open Disk Utility to do that; the disk appears (but not its partition), I try to format or erase it and it doesn’t work!
An error message appears either telling me "The data scan of the volume to prevent future accidental searches has failed," or that it cannot access the last blocks of the package (or something like that).
I tried using Disk Utility for recovery at MacBook startup and it’s the same thing!
What should I do? Do I have to take everything apart? (which is not easy..)
Thank you for your future replies
See you later
Configuration: Mac OS X Mountain Lion (10.8) / Firefox 21.0
4 réponses
Hello,
I bought a Samsung 850 EVO SSD and encountered this problem (write error on the last block) while formatting (internally) the drive using the Disk Utility on my MacBook Pro.
After 2 days of trials (a multitude of attempts and a lot of perseverance), I found the solution to install my drive internally and install the latest OS on this drive to use it as the primary drive. I propose this procedure (in the case of a disk upgrade):
- keep your old drive in its Mac slot
- get an external drive reader and the internal adapter kit (sorry, you'll have to abandon your CD drive)
- have your Time Machine backup drive handy (if you haven’t backed up, you’ll need to buy a drive specifically for that and do your Time Machine backup first)
- place the new SSD in the external drive reader.
- format it with the Mac utility
- you must absolutely manage to format it up to the last block and 'partition' it, it should work. If it doesn’t work, plug it into a PC and format it as Windows NTFS (to erase everything) and then return to your Mac and redo the procedure to format it with the Mac utility.
- once it’s formatted, shut down your Mac
- connect the backup drive (in its enclosure of course) to a USB port
- connect the newly formatted SSD to the other USB port
- start your Mac in recovery mode (Command (⌘) and R) https://support.apple.com/fr-fr/HT201314 because you are going to restore the backup of the old system to the new SSD
- in the recovery menu, choose the source of your restoration as defined in the step
- select the SSD as the target for the restoration
- start the restoration (don’t forget to plug in your Mac’s power cable because it will take a few hours)
- go for a run ;-)
- once the restoration is complete, turn off the Mac, unplug both drives
- place the new SSD in the kit (don’t try to replace your old primary drive with the new SSD, it won’t work; I’d be happy to learn otherwise)
- place the kit back in the Mac (good luck putting the screws back as they were, be careful with the LCD screen connector, don’t damage it)
- unplug the old drive. You’ve got a new drive for external use, well done!
- let’s be clear, your new primary SSD is now in the place of the CD drive
- close your Mac, start it up, it should work, the Mac will boot from the second drive (the CD drive)
- have no fear about the performance, it’s as fast as before.
- do the OS update if you want (you have plenty of space for the new OS ;-)
- always make a new Time Machine backup, someday you’ll need it.
Your investment in the SSD drive is not wasted.
Thank you for your attention.
My machine: MacBook Pro 2009, Core 2 Duo, 8 GB RAM, new Samsung 850 EVO SSD 500 GB
I bought a Samsung 850 EVO SSD and encountered this problem (write error on the last block) while formatting (internally) the drive using the Disk Utility on my MacBook Pro.
After 2 days of trials (a multitude of attempts and a lot of perseverance), I found the solution to install my drive internally and install the latest OS on this drive to use it as the primary drive. I propose this procedure (in the case of a disk upgrade):
- keep your old drive in its Mac slot
- get an external drive reader and the internal adapter kit (sorry, you'll have to abandon your CD drive)
- have your Time Machine backup drive handy (if you haven’t backed up, you’ll need to buy a drive specifically for that and do your Time Machine backup first)
- place the new SSD in the external drive reader.
- format it with the Mac utility
- you must absolutely manage to format it up to the last block and 'partition' it, it should work. If it doesn’t work, plug it into a PC and format it as Windows NTFS (to erase everything) and then return to your Mac and redo the procedure to format it with the Mac utility.
- once it’s formatted, shut down your Mac
- connect the backup drive (in its enclosure of course) to a USB port
- connect the newly formatted SSD to the other USB port
- start your Mac in recovery mode (Command (⌘) and R) https://support.apple.com/fr-fr/HT201314 because you are going to restore the backup of the old system to the new SSD
- in the recovery menu, choose the source of your restoration as defined in the step
- select the SSD as the target for the restoration
- start the restoration (don’t forget to plug in your Mac’s power cable because it will take a few hours)
- go for a run ;-)
- once the restoration is complete, turn off the Mac, unplug both drives
- place the new SSD in the kit (don’t try to replace your old primary drive with the new SSD, it won’t work; I’d be happy to learn otherwise)
- place the kit back in the Mac (good luck putting the screws back as they were, be careful with the LCD screen connector, don’t damage it)
- unplug the old drive. You’ve got a new drive for external use, well done!
- let’s be clear, your new primary SSD is now in the place of the CD drive
- close your Mac, start it up, it should work, the Mac will boot from the second drive (the CD drive)
- have no fear about the performance, it’s as fast as before.
- do the OS update if you want (you have plenty of space for the new OS ;-)
- always make a new Time Machine backup, someday you’ll need it.
Your investment in the SSD drive is not wasted.
Thank you for your attention.
My machine: MacBook Pro 2009, Core 2 Duo, 8 GB RAM, new Samsung 850 EVO SSD 500 GB
