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1

I think this is what you are meaning. In terminal type in sudo dd if="/dev/disk0" of="/volumes/<volume>/image.img" Warning Entering this command wrong could render your computer useless. Info disk0 is the hard drive of your Mac and <volume> is the name of your external drive and image.img is the name of the file you will create To restore ...


0

Looks like the drive experiences overheating issue. Unfortunately it's a common issue for Seagate drives which happens with time (had exactly the same problem with iMac 2010 21.5`` and stock 500 GB hdd). I used free Macs Fan Control tool to cool down the HDD (specially in Boot Camp, where the drive was even hotter). The article is about HDD replacement but ...


3

You can use the UUID instead of the volume label however a word of warning about using the built-in NTFS Write capability of OS X... It's not stable and I'd highly recommend using a third party utility. I use the paid version of Tuxera NTFS for Mac and enable/disable as needed. IMO it's faster and more safe then the built-in. Example: ...


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Deleting .DS_Store SHOULD reset the appearance of a folder's content. BTW, the problem with the other answer could be the handling of special characters, which in my guess is space. For example, you have a home directory named "First Last". In find, the result it pipes out would be: /Users/First Last/.DS_Store etc. Try, rm /Users/First Last/.DS_Store ...


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I think what you really want to do is to create a bootable backup of your hard drive. There are several good utilities for this (ChronoSync is my favorite). The benefit of a bootable backup is that not only can you restore files from it, but you can also directly boot from it if the hard drive in your computer should ever fail.


1

Generally speaking to "mirror" a hard drive often means setting up a RAID where one drive mirrors the other. This is done using either the RAID software built into Disk Utility or 3rd party RAID software. The benefits of that is that each drive is a duplicate of the other and if one fails the other disk has all your valuable data. The "problem" is that you ...


2

To rename the Recovery Partition, falsely named "EFI Boot", I first mounted the Recovery HD, by showing all partitions in Disk Utility. To show all partitions: 1.) quit Disk Utility 2.) In Terminal write or paste: defaults write com.apple.DiskUtility DUShowEveryPartition 1 and hit 'enter'. Launch Disk Utility and mount the hidden, but now showing "Recovery ...


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You want to use NTFS for Mac. I had to use this a few months ago to access an external drive (from a Windows user) that I had to work with. For the hard drive that will be used for your Time Machine, that needs to be Mac OS Extended (Journaled).


1

By "Passport," I am assuming that you are referring to a Western Digital external drive, which you have been using to perform regular backups. I'm guessing that by "backups," you have been using Time Machine. Considering that this is a new issue, it is fair to say that the external drive has been formatted correctly for use with Mac OSX (i.e., Mac OS ...


1

Installing Yosemite converted your hard drive to a Core Storage logical volume, and CS was only introduced in Lion (Wikipedia), so it makes sense that Snow Leopard would have no idea what to do with it. Here's how you undo CoreStorage (source - this method worked for me). It should be non-destructive, but as always, take a backup first! Also, note that any ...


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To clean up your entire hard drive (starting from mount point /), you can use: $ sudo find / "-name" ".DS_Store" -exec rm {} \;


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The difference is minimal, from my experience. When I made a fresh upgrade to Yosemite, I did some tests. I have 16Gb RAM, and 2 internal SSDs - one unencrypted, and one encrypted with FileVault2. On the encrpyted disk, there's a encrypted sparsebundle where Firefox profiles are stored. I can't remembered the numbers, but after comparing the read/write ...


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An encrypted partition would likely be faster. With a disk image, you're actually accessing two filesystems, one within the disk image, and the one on which the disk image is stored, as well as the technologies needed to read the disk image itself. It seem unlikely that a disk image could ever be faster than full-disk encryption, but you would have to run ...


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Just me! Apparently choosing a password not as soon as possible assigned me another user (former user127893, now user128454) but still same username and almost similar avatar (a quarter or the former with a more visible Triforce :D ) BTW recently I tried to run a Disk permissions check and repair. After that I repeat the Verify Disk and the error message ...


2

you can try to connect you HDD to another mac. you can create full copy of this disk via dd vith noerror parameter If you use windows you cat use Ext2Read for access to linux partition.


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You can try to force-quit Finder, this worked for me. Finder was hanging onto the USB drive, so force-quiting and re-launching released whatever the hang was.


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Have you tried asking disk utility to redo the partition map? Click on the disk, go into the "partition" tab, set it from "Current" to "1 Partition", click "Options", change the partition table to anything else, then repeat the process and set it back. If the issue is the partition table, that will fix it. If the issue is the drive, then it won't. Either ...


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A WD Black2 is a Fusion Drive already. A Fusion Drive is a pair of hard drives that your software views as one volume. The Black2 manages that by itself and should already appear as one disk to your computer. To make a DIY Fusion Drive on your computer, you need at least two hard drives. Your computer only sees one, already being managed by WD's setup.


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My personal recommendation would be not to move the OS to external drive as you would have to carry it around just to make the computer run. I recommend: Move all the files that you only need slow access to but are GB-eating to iCloud or similar network location. (For example: iTunes Library, Photos, Movies…) Get a Thunderbolt drive for applications that ...


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If a partition was encrypted with FileVault, and you have forgotten your password, you need to boot into the Recovery Partition to format the partition / drive. (Hold down Command+R during startup to get there.) From there, you can use Disk Utility to erase the encrypted partition.


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SATA Controller I had something similar happen to me and I seem to recall it was not so much the O/S as it was the controller in the drive caddy. The drive is probably SATA 3 and the drive caddy is probably a SATA 2. And there are limitations to drive size in various versions of SATA. If you got a drive caddy with a SATA 3 controller (to USB) and plugged ...


0

If you exceed 20 GB of RAM (I would say also, if you exceed 8 GB of RAM), you're doing something wrong with your code / algorithm. So try to optimize it to achieve better performance and if you can't optimize, go for high parallelism (cloud computing). Moreover you can use you HD space as swap space for temporary store information. I would opt out for SSD ...


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A traditional USB flash stick will not cut it for your purposes. This is not a question of R/W speed. Regardless of the R/W speeds (I own an excellent 128GB PNY Turbo stick), the on-board controller (the microchip that serves as the brains behind the drive’s operation) is built for low-cycle I/O operations. If you plan to run virtualization software from an ...


-1

I'll go for the MBP SSD replacement because it'll not void any Apple warranty (as written in this thread and the last link to Apple warranty). In my case I'm working with a Samsung SSD 850 Pro 256GB and an external WD HD 500GB 5200rpm for Windows VMs. I'm using VMware Fusion and I'm not experiencing any kind of slow down or lag spike.


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First, you need to isolate the problem. Put the internal hardrive in a casing and connect it to your laptop through USB. Then boot up the OS X in this configuration by holding down OPTION key. If everything is smooth after a couple of hours, the problem is definitely SATA cable. I have a 2011 13' MBP (A1278) and the cable broke a year ago. From what I read, ...


-1

I had this problem / error message, but it turned out that Disk Utility HAD actually erased free space on the drive anyway.


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I don't want to spend lots of money on something if it's not entirely necessary. Backups are necessary, as you have now realized. Drives are readily available for about $100 - is your data worth that much to you? (Drive-recovery services start at $1000) There are now only 3 manufacturers of hard disk drives, and they all make reliable drives. There ...


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OmniDiskSweeper may not be running with administrator privileges and it cannot access all folders, therefore it is not counting everything. The command du -x -sk /* in Terminal may give you a better/correct result.


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I would suggest that you use a portable drive rather than a desktop external drive. With most Portables you will not need to worry about an extra Power supply. I would also use TimeMachine with the device. Be aware that TimeMachine will eat all available space on the drive overtime. And overwrite the oldest backups. Which although this is ok I often ...


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Depending on what sort of backup you want to do: if you want to use TimeMachine the normal rule of thumb is that you choose a size that is 3 times the internal disk size. If you want to do a clone, the same size is enough, but you loose history. I propose to use a disk for TimeMachine as well as a second disk for a clone or another type of backup.


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Choose a reputable manufacturer: As data shows, HGST (formerly Hitachi, now owned by Western Digital) makes the most reliable hard-drives on the market today. Stay away from Seagate drives (see comments). Choose the right size drive: Regardless of the method, it's highly recommended to purchase an external drive that is atleast twice the capacity of the ...


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You will need a drive at least as large as the internal storage of the Mac. You can open About This Mac from the Apple menu at the top left of the screen and then select storage. You probably have between 128 GB and 512 GB of internal storage, so getting a 1 TB drive would be room for double the space of the largest Air storage drive. You could also get ...


1

You are the best person to answer that. Use the Activity monitor and take a look at RAM and HD current usage. That will tell you what you need most. Usually the more RAM the better, that in turn also removes some load from the HD, but a fasted SSD could help in the initial step of loading the app in to the RAM. So if you open and close lost of apps and ...


0

cat is not an appropriate tool for copying volumes. It dumps files character by character. Yes, unix abstracts everything to a file, but it also distinguishes between character devices (files) and block devices (storage). Wipe the partition and use dd, rsync, or a GUI tool like Carbon Copy Cloner to make a duplicate. However, if I read your sequence ...


0

I've got a Samsung 840 Pro with the Inateck USB 3.0 enclosure with UASP support. Runs great. Make sure you get the enclosure with DC power in. Some says it's not needed, but I do notice a slight difference with the DC power in.


0

So, after buying a new SSHD and SATA cable, spending 3 weeks reading and writing command lines on Terminal.... this is what fixed my problem, believe it or not: https://www.youtube.com/watch?v=Amg5w0rlwDo&spfreload=10 This video shows how an electric tape can isolate the sata cable and prevent it to touch the aluminium surface, which will cause you some ...


0

Way by Terminal.. Use diskutil list in a Terminal instance to list all volumes and find yours. Then do hdiutil eject disk? Replace the ? with your disk number, making sure you are not trying to eject the main hard drive :) It is probably called "Disk1" Here is a Sample when I insert a USB stick and run diskutil list disk0 is my hard drive and I can ...


1

You can check for hard links by selecting either the folder [possibly a bit excessive] or one sample file… You can access the contents of a Library file [which is really a folder] by right clicking it & selecting 'Show Package Contents'. Be careful not to actually play around in there, Apple would rather you didn't ;-) but looking through the folder ...


3

Hard linked files share the same inode (which kind of identifies the file in the filesystem). So what you can do is to get the path of two photos which should be the same ("Reveal in Finder" in the old application, probably something similar in the new), open Terminal and run ls -li /path/from/old/app.jpg /path/from/new/app.jpg to see whether the number ...


0

Look at something like Scannerz because it was designed to find those types of problems. Here's a link: http://scsc-online.com/Scannerz.html Scannerz is fault detection software that monitors and looks for signatures associated with various types of logic board, drive, and system failures. I suspect either a cable, connection, or logic board problem. I ...


0

Apparently RAM I installed months ago didn't want to play nice with the new SDD. Switching back to the old ram got the computer to boot no problem. (Weird, because I previously had no issues with the RAM before upgrading the SDD)


0

I agree with the answer given earlier, though what you could try is to manually delete Time Machine backups (at your own risk). If you mount the volume, there is a folder called "Backups.backupdb" (it may be looking slightly different on remote backups). Inside it will have your computer name and then either the dates or the volumes, or vice versa (sorry, ...


0

Shrink the backup volume to the desired size. Time Machine is designed to keep adding backups until the volume is full, then prune older copies. It is NOT designed to share storage space with other things, nor to leave X gigabytes free on the destination.


-1

You might have blown the logic board…might have. That unit uses an integrated I/O and video controller. I'd be afraid that pulling the video cable out may have produced a transient that damaged part of it. You might want to try putting one of the drives in an external case and see if it can work that way. Another possibility could be the SATA cable itself ...


0

Unless I'm missing something here it shouldn't be much more complicated than booting into your recovery partition (assuming it's working correctly), reinstalling OS X and then restoring your data from the TM backup on your WD drive when prompted at the end of the OS X installation process. If you have issues with the recovery partition go for Internet ...


0

The problem was VirtualBox. Specifically, the Windows 7 VM instance I had running was "grabbing" the device for itself. So, it unmounted it from OS X and passed the USB port to the VM. It was doing it automatically so I couldn't see anything. To fix, you uncheck the device next to the USB filter. The filter automatically connects a USB device to the ...


1

If you have a backup, format the Mac's drive, taking care to protect the backup. If you don't have a backup, try some tools like DiskWarrior or TechTool on the Mac's drive. If those don't help, you'll probably have to format and lose your data. If you can't format the drive, it will need to be replaced.


0

There is some "corruption" on some of your files. Since you already ran the Disk Utility and it came back clean it is telling you that there are no physical errors with your drive. That's the good part. You have a couple of options: Run fsck Do a clean install Running fsck. You will need to do so in single user mode (hold down Command-S during boot) ...


1

I know this is old but if anyone else falls into this thread searching for this exact question I want to make sure they know their legal rights with upgrades. There is a little known federal law, ONLY APPLIES IN THE USA, called the "Magnuson–Moss Warranty Act" which says specifically that companies CANNOT require you to use only their service techs and ONLY ...


1

For the Model WD WDBMYH0010BNC I found multiple places that claim it will work on 10.6.8. http://www.amazon.com/Western-Digital-2-5-Inch-Mainstream-WDBMYH0010BNC-NRSN/dp/B00D901NX6 http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=8433785



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