Partition failed could not unmount disk1/10/2023 ![]() What causes the error unable to unmount/delete VMFS Datastore: the resource is in use? Let us today discuss the possible causes and fixes for this error. ![]() Somebody please help me, this problem is consuming my entire weekend.Webmasters often face the error “unable to unmount/delete vmfs datastore: the resource is in use” while removing an empty VMFS Datastore in VMWare vSphere.Īs a part of our Server Management Services, we help our Customers to fix VMware related errors regularly. If instead I tell it to boot using the new hard disk, it goes straight to grub rescue. Unfortunately for me though, after reinstalling GRUB, it still doesn't work. He explained how I could update and re-install GRUB. I followed the instructions offered by Scott Severence's answer to this question. I don't think I did anything wrong, I think the problem is that Ubuntu is not setting up GRUB correctly. I had the same problem after every time I installed Ubuntu. dev/sdd1 2048 1952151551 976074752 7 HPFS/NTFS/exFATĪfter having re-installed Ubuntu a dozen times now, and even buying a new hard drive specifically for ubuntu, I am convinced now that this issue is a bug in Ubuntu's installation. Partition 1 does not start on physical sector boundary.ĭisk /dev/sdc: 16.0 GB, 16008609792 bytesĢ55 heads, 63 sectors/track, 1946 cylinders, total 31266816 sectors I/O size (minimum/optimal): 4096 bytes / 4096 bytes Sector size (logical/physical): 512 bytes / 4096 bytes WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. I/O size (minimum/optimal): 512 bytes / 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes It finished installing Ubuntu, but now when i start my machine it just takes me to the grub rescue prompt. Update: I went ahead and said yes, it can unmount those partitions. Why is this not working? What am I supposed to do? Would you like the installer to try to unmount these partitions again? Please close any applications using these mount points. media/ubuntu/Three\ Terabyte Drive Terabyte\ DriveDrive The installer needs to commit changes to partition tables, but cannot do so because the partitions on the following mount points could not be unmounted: A few minutes passed when this popup appeared: Failed to unmount partitions I chose to install ubuntu alongside windows 7, and hit continue. I wonder, if I had said yes above, would I have lost all the data on those drives? I said no because I don't want to lose my windows 7 installation, nor any of that data. I started Ubuntu in "Try Ubuntu" mode and then opened gparted, and then deleted the unused partition for the last third of my drive, then tried to install ubuntu.ĭuring the install, it asked me if I wanted to unmount the drives I already have The installer has detected that the following disks have mounted partitions:ĭo you want the installer to try to unmount the partitions on these disks before continuing? If you leave them mounted, you will not be able to create, delete, or resize partitions on these disks, but you may be able to install to existing partitions there. I have a 3TB drive that has one 2TB partition on it, so the last 1TB is completely unused, which is where I want to install ubuntu. I have windows 7 installed already and want to keep that installation. I'm trying to install Ubuntu from a pen drive.
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