But before trying this method, make sure that the recovery drive is located in the drive (a separate copy of os installed on it). This fix has worked for many users, so there are high chances that this will work for you as well. Fix “Couldn’t Unmount Disk” Error with USB Boot Drive If the issue is still there, then assume that the error is caused by modifying the bootable disk. Once the process is finished, check if the issue has resolved. Or go to Erase in order to format the disk. Step 3: Visit First Aid and try to repair the disk. Step 2: A boot menu will appear, here, select to choose “Disk Utility”. Step 1: Restart your Mac while pressing and holding the Option key, and then select to choose Recovery partition.
Select the Clover ISO you uploaded and set OS type. Fig.01: Insert in your SD card, or USB pen/HDD, and see /dev/diskN name. Open the Terminal application and type the following command to list disks: diskutil list. 7 Ultimate The RAID Not Active message indicates that a RAID group cant be. To write the disk image: dd ifimage.dd of/dev/DISK.
If that’s not the case, this fix is worth trying, here’s how to resolve the error with the recovery partition: zr4 obd2 code reader service def system gmc. Mind you, this fix will not work if the error was caused by modifying the bootable disk while creating a partition or formating. Fix “Couldn’t Unmount Disk” Error with Recovery Partition
Let there be any Mac OS X version as it doesn’t matter (assuming 10.7 to 10.14 and above), this error can be easily resolved only if Disk utility is present on the drive.Īnyways, let’s head towards the actual fixes.
Checking the space manager free queue trees. Keeping the fact in mind that Disk Utility able to execute from the external drive, we can use it to boot Mac from another bootable drive. Performing fsckapfs -n -l -x /dev/rdisk1s1 Checking the container superblock. For this example, let’s say it’s /dev/disk2. You should see some disks appear like /dev/disk0, /dev/disk1, /dev/disk2. Repair macOS Catalina EFI partition when from Disk Utility it is not possible to complete First Aid on the disk on which that partition is located with the message 'The partition map needs to be repaired because there is a problem with the EFI partitions file system (-69766) '. Then paste in the command: diskutil list to list out the different disks. Good thing is that a valid solution is available that will help us to resolve the “Couldn’t Unmount Disk” Error on Mac. Launch up Terminal.app (through /Applications/Utilities or through a Spotlight search). So before I go down that road, I'm here to ask if I'm missing something obvious like an apfs_kext version or something.SEE ALSO iTunes Not Showing Album Artwork? Here's how to fix it. In Disk Utility (or Terminal) unmount the container or volume, by selecting it and clicking on the Unmount tool. In this case, I’ll use disk7s2, which is the sort of volume name you’re looking for, or disk7 for a container.
Performing fsckapfs -n -l -x /dev/rdisk1s1.
Most of my googling is telling me, "reformat your drive." Well, I'd rather not. In Disk Utility (or Terminal) obtain the device name of the APFS container or volume you want to check. Disk Utility Started file system verification on disk1s1 Macintosh HD. Restoring the original state found as mounted.
When i restarted node1 the service groups failover good to node2 and when i restarted node2 the failover working good and failover. The volume /dev/rdisk1s1 could not be verified completely. I installed veritas 6.1 on redhat 6.4 64bit and vom 6.0 and created disk groups and volumes and then service groups failover and mounted the volumes in the service groups. The volume Hackint0sh HD was formatted by hfs_convert (945.200.129) and last modified by apfs_kext (945.250.134).Įrror: directory valence check: directory (oid 0x130053): nchildren (1) does not match drec count (0)Įrror: directory valence check: directory (oid 0x130063): nchildren (2) does not match drec count (0)Įrror: invalid dstream.size (134218472), is greater than dstream.alloced_size (4096)Įrror: xf : INO_EXT_TYPE_DSTREAM : invalid dstreamĮrror: inode_val: object (oid 0x300a3ca8a): invalid xfields Performing fsck_apfs -n -l -x /dev/rdisk1s1Ĭhecking the space manager free queue trees. NOTE: First Aid will temporarily lock the startup volume. Now perform the original task that threw the Couldn’t Unmount error. Running First Aid on “Hackint0sh HD” (disk1s1) Hold down the OPTION key during boot, then select the attached boot drive (typically has an orange icon at the boot menu) At the boot menu, choose Disk Utility (if using an Installer disk, pull down the Utilities menu to access Disk Utility) Go to First Aid and verify the disk, then repair if needed. Building a CustoMac Hackintosh: Buyer's Guide