so this might be a moot point in the future. (Unfortunately, newer Macs don't have replaceable hard drives anymore. Moral of the story? If you are upgrading your hard drive in a Mac (Mini, MacBook Pro, etc.), and the new drive has mysterious problems that don't happen when it's plugged in elsewhere, consider replacing the SATA cable! I ordered it, it arrived the next day, I swapped the cable, and now I'm having no trouble at all with the new SATA III Crucial drive. So I went on Amazon and found a Mac mini hard drive cable upgrade kit with part number 821-1500-A for a little over $10. It would probably last forever if you never touched it, but having to pull it and put it back in 3 times could definitely make it less-than-reliable. and the tiny flex cable and connector on the cable is very fragile. I realized that I've now replaced the hard drive in this Mac mini 3 times. I'm thinking the drive cable has degraded so the faster data flows with the SSD is having problems. but eventually in all my Google searches, I found this incredibly helpful answer from iFixIt's forums. # When trying to erase the disk in Terminal with `diskutil eraseDisk`.Įrror: 12: POSIX reports: Cannot allocate memory # When trying to partition the drive while it was in the Mac.Īn internal error occurred while preflighting your volume for APFS conversion The volume on device dev disk0(source volume) is not of type Apple_HFS or Apple_UFS I actually hit a few different errors, depending on the type of format I was attempting, including: Many times (erasing and partitioning as both 'APFS' and 'Mac OS Extended (Journaled)'), it would start the process, then run into an error. Since I had two backups of the old drive, I decided to try re-formatting the new drive while it was inside the Mac mini. I tried opening the terminal and manually blessing the disk with the bless command, but that failed. It saw the new drive, and could mount and unmount it.īut when I tried to switch the startup disk, and it popped a message saying the disk could not be 'blessed'. So I used system restore (⌘-R while booting the Mac), and opened Disk Utility. I replaced the internal drive, and booted the Mini. The drive formatted via the USB-to-SATA adapter, and I cloned the disk successfully using CCC. This time, I bought a 2TB SATA III (6 Gb/s) drive from Crucial, to replace an older SATA II Mushkin drive. I'd plug the new SATA drive into my USB-to-SATA adapter, clone the disk using Disk Utility (now using Carbon Copy Cloner as of macOS 10.12, since Disk Utility won't restore APFS volumes cleanly anymore), and then use the iFixIt guide for replacing the hard drive in a 2011 Mac mini. I've replaced the drive a couple times before, and never had any issues. Type diskmgmt. but I haven't lost a file in two decades and I don't want to start now -).Īnyways, my digital cruft has grown to the point it wouldn't fit on a 1 TB main drive anymore, so I decided to upgrade the Mac mini's internal drive to a 2 TB SSD, hopefully giving me another 2-4 years of life out of that computer before I have to find a new backup solution with more than 2 TB of storage. Here’s how to format an SSD on Windows 10 using Disk Management: Install your new internal SSD, or connect your new external SSD via USB. It handles Time Machine backups for two other Macs, it has about 20 TB of external storage connected, and I also use it as a 'home base' to store all my Dropbox, iCloud, and Photos content locally, and store an extra Time Machine backup of all that. I have an older Mac mini (mid-2011 i5 model), and I use it as a general media server and network backup. Who would've thought such a tiny cable could cause so many problems? Put your disk name in place of /dev/disk1 diskutil eraseDisk JHFS+ CleanDrive /dev/disk1 3 – You’re done!Ĭongratulations! Your hard drive has been formatted.Tl dr: If you see weird errors when using or formatting a drive internally on a Mac (especially after upgrading to a newer and/or faster SATA hard drive), it could mean the SATA cable needs to be replaced. Replace CleanDrive with the new name for your formatted drive. Replace JHFS+ with any file system you need (check the chart above for a list of file systems you can use). Run the following command, be sure to make adjustments for your drive. You can use the diskutil eraseDisk command to format a hard drive. Locate and note the name of the drive you want to format. This will provide a list of hard drives attached to the machine. Navigate to Applications > Utilities and choose Terminal. 2 – Format hard drive through Terminal File System Choose a new name for the formatted drive and click Erase. If you’re not sure, Mac OS Extended (Journaled) is a safe bet. Select a file system to format the drive with. Click Erase in the bottom right-hand corner. Select the drive you want to format from the left-hand navigation menu.
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