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10

The HDD is formatted using FAT32 which has a known limitation of 4GB file size. You need to format it using exFAT which is supported by OS X and Windows.


7

It's simply telling you that the file has been modified, and because it's currently being accessed Disk Utility can't fix the permissions on it. ARDAgent.app is the Apple Remote Desktop agent, and the file shown in the path above is the binary file contained within the app package. This indicates that the app is currently open, and therefore in use. It's ...


6

If I understand your question correctly you are trying to resize the volume group or actually one of the volumes within a group. From what I could gather your disk was converted to a CoreStorage Volume. Could you please verify that by issuing the following command in a terminal and check if you get a similar output to the one in the picture: diskutil ...


5

I recently had the same question and found a command line tool www.smartmontools.org which can be installed via brew: brew install smartmontools you can then run it smartctl -a disk0s3 for the full report where disk0s3 is the disks physical baking which can be found in Disk Utility.app by getting info on the drive. (There must be a way to find this ...


5

If you are facing a healthy file system at the level of its structure and want to find files which have disk faulty blocks, here is how I would proceed: Make a full backup of your disk with Time Machine or Carbon Copy Cloner Check this backup. Run the following heavy and risky (in case you do have bad blocks outside of your filesystem structure) command: ...


4

Reboot in single user mode by holding the Command + S during boot. When you see a prompt (should look like root # or something similar), type fsck -f and press Return. This is Mac's built-in filesystem consistency check tool and allows you to find and repair errors with the startup file system. Run this command until you don't see **The volume [volume name] ...


4

I had the same problem after converting a disk. There was a message displayed by diskutil cs convert: Couldn't unmount disk0s4; converted volume won't appear until it's unmounted I solved the problem by unmounting the disk and repairing it : diskutil unmount force disk0s4 diskutil repairVolume disk0s4


3

The process is UnmountAssistantAgent, therefore can be killed using: killall UnmountAssistantAgent


3

You can use diskutil cs list to show the core storage view of things. Once you have the logical volume UUID for the disk in question, you can use diskutil cs deleteVolume to clean up the reserved space that was allocated to the encrypted data and filesystems. That would allow you to surgically remove the core storage. You could also unmount the filesystems ...


3

Don't worry, this is one of the messages that are safe to ignore. For a full list, visit the Apple Knowledge Base article on this topic.


3

I also have this issue... MacPro, 3TB drive (Seagate). I have to use the terminal: diskutil list diskutil unmount /dev/disk22 diskutil eraseDisk HFS+ "Macintosh HD" /dev/disk22 etc etc to utilize this drive correctly. (Sorry for all the commands. Posting them just in case it helps someone. Though anyone using those commands better know what they do ...


3

None of the HFS flavors will offer any performance benefit that's measurable. I have seen encryption slow down some storage medium such as slow USB flash and I would expect journaling there to also be more of a slowdown than on storage with fast cache or more responsive write service times. I suppose journaling could in some rare circumstances (bizarre edge ...


3

I've struggled for some days with the same problem but now it is solved. The problem was a faulty SATA cable. I've replaced it with a new one and now everything works as expected.


3

Apple's bespoke command line utility to do disk cloning is asr. It is tailored to the specifics of OS X needs to perform file by file as well as block based imaging and deals with differences in partition sizes, allows network streaming (and even multicast streaming) as well as copying between disks that are locally connected. Unlike dd, it knows about ...


3

There is a slim chance to repair it with command line (in Terminal) fsck Option 3 (advanced): Use the command line and the fsck_hfs -l command. Start up your computer and log in as an administrator. Open Terminal (/Applications/Utilities). At the prompt, type the following command and then press Return to determine your filesytem ID: df -hl Look for ...


3

You do know that RAID 0 is only striping and not only provides no redundancy, but increases the risk of data loss as the failure of any single drive can mean the loss of the entire storage pool? RAID 0 is only for increasing read and write speeds, for example for video editing. You need at least RAID 1 or 5 for redundancy. That being said, if you're losing ...


3

The Disk Utility Repair Permissions command is just a front end for the repair_packages program. Use this: /usr/libexec/repair_packages --repair --standard-pkgs


2

Yes! First get the UUID of the partition you want to prevent from mounting... You can get this in Disk Utility "Get Info". Now open your /etc/fstab file for editing: sudo pico /etc/fstab In this file add the following line (use your own UUID naturally): UUID=[your UUID] none hfs rw,noauto 0 0 And save the file. Restart for the change to take ...


2

Using this option, you'll endup with a whole disk encryption. It uses OSX CoreStorage volume management technology and XTS-AES 128-bit encryption, so it's software. Edit : As pointed Alan Shutko, since 2011 Intel added an Intruction set to intel processor to do AES encryption.


2

Testing cabling is more of an empirical exercise. First you disconnect and reseat both ends of the cable. Next, you put in the new cable and if the problem goes away it was the cable. If you suspect the cable on an intermittent problem you replace the cable and leave it in after reseating doesn't reduce the frequency of the issue. I'd start with reseating ...


2

I highly recommend completely backing up the machine before attempting this, either using TM with no exclusions set, or better yet, cloning the whole drive using a program like Carbon Copy Cloner. Unmount the Logical Volume: sudo diskutil unmount force /dev/disk1 Remove the Logical Volume Group and all of its contents: sudo diskutil cs deleteLVG ...


2

You're using Apple's RAID which means you need a device which just hosts the discs and then your new laptop will see them and use the existing RAID structure. This rules out NAS. AS these are existing RAID arrays you can't simple merge them together to create a single new RAID. At least, you can't while keeping the data on them. Essentially, in one device ...


2

I had a similar problem. I created a 30 GB partition and after deleting it there was unused space. I couldn't manually get the original full partition back because of disk errors. So I booted into Recovery (Command + R), repaired the disk with Disk Utility and then the resize to original was no problem. Rebooted and now back to normal. Had no need to ...


2

Have you tried looking at the kernel log messages? If, as you said earlier, it tried to root from the drive at least once, you can try to find it in the /var/log/system.log, for example: $ grep 'rooting\ via' /var/log/system.log Oct 24 18:01:44 localhost kernel[0]: rooting via boot-uuid from /chosen: 4AB3D289-884F-379C-AF7B-************ Oct 25 11:21:57 ...


2

Reinstall Windows again using BootCamp, then remove it properly using BootCamp Assistant. It takes time, but solves the problem. Dummy Windows entries are gone forever.


2

One thing to try that is perhaps extreme is to place the drive in a few layers of freezer bags and cool it in the freezer, and then try to get it to mount, and copy off what data you can until it fails again, and then repeat this process. Its absurd, but it has worked for me and there is a lot of anacdotal evidence that this can help recover data, regardless ...


2

There is a app on your drive already. The Migration Assistant.app in /Applications/Utilities Try it.


2

Did you try to boot with cmd-R pressed, to boot from the recovery partition? See this link for details. From here it seems that your MBA does not find a valid OS to continue booting. If the local recovery system is not available, you need a working Internet connection for booting an online version of the recovery system. While in the recovery system, you can ...


2

The error message is pretty unclear, but one reason might be that you are not connected to the power outlet. Compacting a disk image might be a long and intensive task, and sometimes the OS denies it when you are running on battery to avoid any risk of data loss. If you are positive that you have enough battery power to complete the task, you may overrun ...


2

You appear to have a heavily-used computer with a 5-year-old drive. I would be more surprised if it didn't have issues. Two things you can try: Step 1. Clone your drive to an external drive using something like Carbon Copy Cloner. Do NOT use block copy mode or Disk Utility, that copies the problems as well. Step 2. Boot from something else, like the ...



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