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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

You can force unmount a drive by running the following Terminal command: diskutil unmountDisk force /Volumes/VOLUMENAME Replace VOLUMENAME with the name of a volume on the disk you are trying to unmount. Following this, attempt to Erase/Partition the drive again in Disk Utility. Using the above command can interrupt file read/writes, which can cause file ...


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 ...


4

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: ...


3

NOTE FOR CASUAL READERS: rm -rf destroys data. Use with caution. rm -rf may appear to go fast, but it is actually recursively going depth-first into each directory and unlinking the files within—the same operation that is used for any file deletion on Unix systems. You can see how rm -rf works by adding the -v flag, e.g. rm -rfv. There's no reason to ...


3

In addition to the Unix file permissions, there are old HFS file bits. To unlock your folder try: Terminal > SetFile -a l ~/sites/lockedfolder OR Terminal > chflags nouchg ~/sites/lockedfolder Alternatively, you could do a Get Info in the Finder, and uncheck the "Locked" checkbox from that window.


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

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

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


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

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

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] ...


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

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

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

The following procedure should format your SD card to make it usable again and cause bad sectors on the card to be remapped if that is part of your problem. Warning, erasing the wrong drive could make you cry so make sure that you know what you are doing. Before inserting the SD card into your Mac, make sure that the write protect (lock) switch is turned ...


2

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.


2

Same problem here. Read and on and I'll tell you what I did to solve this problem: I do Time Machine to an encrypted external Hard Disk. I stored the password to the disk in the default Keychain, and the system mounted the disk automatically after plugging it in. But suddenly, last morning, after I plugged in the disk, it prompted me for a password (it ...


2

I take the following to mean that YES, 7-pass (or 3-pass) may find more bad blocks than a single pass, by the mere fact that some blocks may be, well, "iffy" and need more than one pass to be found and excluded. Please correct me if I am misinterpreting the following: [T]he Zero Out Data option... will trigger the drive's built-in Spare Bad Blocks ...


2

did you try: hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/target.iso after that unmount using: diskutil unmountDisk /dev/diskX (X is the disknumber of your usb device) Now just burn it using dd sudo dd if=/path/to/target.img of=/dev/rdiskN bs=1m


2

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 ...


2

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


2

This is probably due to an issue with Finder. Relaunch finder with the following command in terminal: killall -HUP Finder


2

That's basically the only way unless you have one of the older mac pro's with the raid card. if I was you over usb id leave them as stand alone drives.


2

a) You can use the free and open source Mac Linux USB Loader app to make a bootable USB drive. OR b) Follow the instructions for How to create a bootable USB stick on OS X (it has a step to convert ISO files to IMG before writing it to the USB drive).


2

The resizing can be finicky when there is a gap in the space between the partitions. Especially when if not all the logical volumes / partitions are HFS+ format. It's not clear that you will be able to do this without seeing the core storage listing and the normal listing: diskutil list diskutil cs list The first shows how the filesystems are mounted ...


2

Download BatChmod, free and very, very handy. When one is done working, correct permissions are easily restored.


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

iPartition For all my partitioning, I use and recommend iPartition. It will allow you to resize partitions without deleting any data. It also works for Boot Camp volumes and other PC disks. With iPartition, resizing a partition is as simple as selecting it, grabbing the resize handle and dragging. Not only that, but if you have several operations to ...



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