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1. #Mac disk utility partition failed unrecognized file system install#
2. #Mac disk utility partition failed unrecognized file system full#
3. #Mac disk utility partition failed unrecognized file system mac#

External hard drive connected to the USB port of an AirPort Extreme Base Station (802.11ac) on your network.

#Mac disk utility partition failed unrecognized file system mac#

External hard drive connected to a USB, FireWire, or Thunderbolt port on your Mac.According to Apple's official instructions ( ), when you have a problem with Time Machine, check these things if you see an alert that Time Machine is unable to back up your data, or if you can't select your backup disk in Time Machine preferences. One phenomenon to get Time Machine backup failed is that you can't back up or access an existing Time Machine backup, or restore from an earlier backup won't work. Can't Backup or Restore Your Mac Using Time Machine

#Mac disk utility partition failed unrecognized file system full#

Full stepsĭownload software to recover missing backups > repair unrecognized. Full stepsĬreate a new backup > restart Time Machine > repair with terminal command. Lion drive.Check Time Machine system requirements > check your Mac. I've taken screengrabs of the information Disk Utility gives when looking at the encrypted Yosemite drive from the Mt. (something weird is going on with imgur)ĮDIT 2: I re-encrypted the Yosemite drive and all the problems returned.

However, I assume that re-encrypting it will result in the errors returning what needs to be changed to avoid that? Please, see below screen shots of the current Disk Utility drive list, followed by the Terminal results of diskutil list and diskutil cs list. Lion drive to look at the Yosemite drive, the errors & ghost drive have seemingly disappeared.

What do I need to do to actually wipe this drive and have an EFI partition with a recognized file system & no other errors? Could I be getting the errors simply because I'm looking at an encrypted boot drive from a different boot drive? When I run Disk Utility from the Yosemite drive, no errors pop up at all.ĮDIT: I unencrypted the Yosemite drive &, when running Disk Utility from the MT. Why does the pre-Yosemite drive have a duplicate and how is the content that was on that drive prior to being completely erased twice still being backed up?! Is the Yosemite EFI partition actually corrupt? It starts up and runs just fine. I removed the entire drive from being able to be backed up by Time Machine & it is now creating backups of only the Yosemite drive prior to the Yosemite installation.

#Mac disk utility partition failed unrecognized file system install#

I noticed that my Time Machine backup drive was creating two backups for the Yosemite drive one was the drive prior to the erase & Yosemite install & the other, with the same name, was the Yosemite install. The EFI partition turned red & warned, 'Error: Incorrect size for logical volume.Verifying volume “disk1s1” Verify volume failed: Unrecognized file system.' No errors were noticed with the duplicate main partition.Īssuming I'd somehow screwed up my multi-OS installer, I wiped the Yosemite drive and reinstalled from Internet Recovery.Īgain, everything seemed fine, but Disk Utility is giving me the same error warnings & the main Yosemite partition still has this ghost duplicate. Running 'Verify Disk', told me that the main partition was the 'Incorrect size' for its volume and 'Problems were found with the partition map which might prevent booting'. The duplicate partition seems to be in name & size only and does not appear to have any content on it. Lion drive, I saw that the main Yosemite partition was listed in duplicate. I used FileVault 2 to encrypt the drive.Īll seemed well, but when I fired up Disk Utility from the Mt. I completely erased the 2nd SSD and installed Yosemite on it from my bootable USB. I created a bootable multi-OS USB installer. Lion installed on one of the SSDs, as my only boot drive, and used the other, rarely, for file storage. I have a 2012 Mac Mini Server with two internal SSDs.