refers to formatting, or erasing a disk, deleting all data on the disk

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19 views

How can I format a USB drive on a Mac so that it works on all old PCs as well? [duplicate]

I've tried FAT32 but old PCs won't read it. I could try NTFS but then Macs would treat it as read-only. I'm pretty sure I've seen USB sticks that work on Macs and PCs but I don't have any to hand so ...
-1
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0answers
13 views

Why does my external HDD have an EFI partition?

When I ran diskutil list on my Mac, it showed an EFI partition plus my normal partition on my external disk. Why is it there? If I edit my EFI partition and it gets corrupt, will a format change it ...
3
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1answer
224 views

Are all installations of OS X (10.8+) Case Insensitive (by default)?

I'm going to be getting a refurbished machine and rather than keep my current OS (10.6.8), I need to upgrade to at least 10.8, in order to be able to communicate with devices that use iOS 9 (since you ...
9
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5answers
542 views

Portable encrypted USB stick

I would like to have an encrypted USB stick that I can use with Windows and OS X. I could format it as FAT32 and then have a encrypted image files (more than one due to the file size limitation of ...
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1answer
149 views

Cannot erase SD card with Disk Utility (El Capitan)

I have this SD card that I am trying to use to backup photos on a Windows computer. After using the SD card on the Windows computer, and copying the photos back on a safe drive, I cannot erase the SD ...
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0answers
29 views

How should I properly format my iPod nano 4th generation?

I've been the happy owner of an iPod nano 4th gen, 8Gb for a few years. Over the years, I've added and deleted many songs, lyrics, album art, etcetera, and I recently assumed that something was ...
4
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1answer
90 views

MacBook does not mount, does not boot, does not read drive

When i press alt on my MacBook during startup, it only shows a disk that i used to have Windows installed (which is now empty). I erased that disk when i was last logged in on OS X. Then i tried to ...
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0answers
30 views

MacPro internal HD unreadable when moved to external USB Dock - and vice-versa

Since I just installed a NAS, and I want to transfer several TB from my Mac Pro's internal hard disks (4 of them), I wanted to make it faster by connecting those hard disks directly to the NAS using ...
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1answer
68 views

Can I set up Contacts phone numbers format

iPad iOS 9. I use AT&T. iPad Air 2 I spend a lot of time in Mexico where the phone number format is completely different from the one in the States, and in Contacts. Also, Contacts will not let ...
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0answers
15 views

Selling old Macbook pro 1,1, need to re-format the drive

I have an old MacBook pro currently running snow leopard. I have a time-machine back up disk, but is there a way to reformat everything, leave the OS on the machine, then sell it? The original ...
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1answer
115 views

Change MacBook Pro OS X Apple ID ownership [duplicate]

Over a year ago I bought a second hand MacBook Pro on ebay. Unfortunately the original owner did not reinstall the operating system and in fact it came together with Photoshop and Microsoft Office. ...
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1answer
21 views

why are my iPhone4 videos different in size?

Some videos I take are square and 640 x 480, while others are 1920 x 1080, data rate changes with size as well, so quality is much better on the larger size - seems to be random - how do i set the ...
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0answers
24 views

Are slow format speeds indicative of more severe hard drive problems?

I have an mid-2011 iMac, that has 4GB of RAM and a 500GB HDD (not SSD). Over the past few months I have experienced: Fairly frequent beach balls/general system slowdowns A worrying number of errors ...
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0answers
45 views

Repair Disk failed

I try to repair a disk because my Mac still is on grey screen during start. I created a USB Yosemite bootable and I can use Terminal. I tried with: diskutil repairvolume disk0s2 But I get the ...
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1answer
106 views

Find specific attached disk, not volume, by Applescript

I have a script I use to format any inserted SD card, copy data from specific folders to it, then eject. Each format/copy is triggered manually, as part of a batch process involving maybe a hundred ...
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0answers
240 views

Unable to format external HDD

When creating a partition with GUID Partition Map Scheme in Disk Utility, I'm getting "Partition failed with the error: Unable to write to the last block of the device". Same message when I try to ...
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1answer
34 views

I am trying to erase and reformat drive with snow leopard, but don't have the install DVD

I have a 2009 MacBook Pro running Snow Leopard, and I'm selling it to someone. Want to erase and reformat the drive but I don't have the Snow Leopard Install DVD. Is there any way to do this?
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1answer
183 views

How to recover from accidently diskpart'ing an OS X drive, destroying everything?

Ok, so, I just got my Mac back after 5 months in the repair shop. I went to install winblows 7 via Boot Camp Assistant, but was having issues. I went into diskpart, and not remembering how to use it, ...
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1answer
59 views

Tried to reinstall osX and ended up getting folder with questionmark on boot

Today I decided after 6 years to format my MacBook Pro 2009 laptop. Originally I had Snow Leopard on it (I still have an unscratched cd) but in some point back in 2012 a friend installed (using his ...
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1answer
280 views

Apple MacBook Pro 2013 with 512Gb SSD cannot install OS X

I had an issue running an App and the vendor suggested I should revert to the earlier OS X 10.10.3. I located on Time Machine the backup version I needed, waited for the format and restore. I then ...
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0answers
94 views

How to solve continuing error “internal disk needs repair” after installing a 8 TB HDD in Airport Time Capsule (A1470)

I've replaced the failed 3 TB HDD (SATA 6Gb/s 64MB Cache) with a model number (ST3000DM001) in my TC (A1470) with a 8 TB HDD (from HGST model no HUH728080ALN600). I've used the Airport Utility to try ...
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0answers
55 views

Initialize 6 TB internal hard drive

I've found it both economical and flexible to use a docking station with internal hard drives (the ones that look "naked", i.e., have no plastic casing) for backups. I use this docking station to ...
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0answers
39 views

Windows formatted disks owned by $USER, while Mac formatted disks owned by “root”, right?

I noticed that some disks were owned by $USER and some by root: $ ls -l /Volumes total 88 drwxrwxrwx@ 1 jdoe staff 8192 Jul 14 10:22 USBdrive drwxrwxrwx 0 root wheel 0 Jul 14 15:54 ...
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0answers
51 views

Drive format for Sony Blu-ray

I formatted my drive from my Mac in FAT32. I'm using the drive on a Sony Blu-ray player (BDP-S5500. When I copied my files (movies) to the drive from my Mac, ._ was placed in front of each title and I ...
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1answer
24 views

How can I reformat a USB

I used by USB to add as iso file into it. sudo dd bs=4m if=my.iso of=/dev/disk1 Now I want to get the USB back to normal. but the erase button in Disk Utility is disabled. How can I reformat this
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0answers
53 views

Principal HDD doesn't appear in the list of disks to format

I'm using the recovery tools (from internet), but I can't format the internal 500GB HDD. Entering diskutil list in Terminal I get the following output: -bash-3.2# diskutil list /dev/disk0 #: ...
2
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2answers
163 views

Change drive “block size” to 4096

I just bought a 4tb hard drive and enclosure and attempted to encrypt it with truecrypt. I errored with a message saying the block size must be 4096 bytes for >2TB drive. How do i alter the drive to ...
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4answers
1k views

Pros and cons of wiping a new Mac?

Coming from the PC world, most made-to-order manufacturers (e.g., Dell, HP, Acer, etc.) all have annoying little addons which I consider spyware/bloatware--things like toolbars with ads. When buying ...
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1answer
40 views

Questions regarding disk format

I'm doing a fresh install of Yosemite on my mac, but stopped at format step: I noticed various options: plain format encrypted case sensitive So, I'd like to know: Is it possible to install ...
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1answer
194 views

MacBook 5,1 Upgrade, Leapfrog to Yosemite and MBA Backup

My 2014 MacBook Air was recently stolen, but I have a full backup available via Time Machine saved to an Airport Extreme base station. For now I'm using an old MacBook 5,1 with an Intel Core 2 Duo ...
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0answers
269 views

I get this error when running sudo dd if=/dev/zero of=/dev/rdisk# bs=64k in Terminal

I'm following the steps explained in this answer: sudo dd if=/dev/zero of=/dev/rdisk# bs=64k but get an error dd: /dev/rdisk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred ...
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1answer
37 views

MacBook Optimal Disk Formatting

What's the optimal formatting for a MacBook disk? My disk seems to be formatted as a LVG (Logical Volume Group) and it seems super slow...
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2answers
17k views

Formatting USB Disk As EXT3 On Mac

How can I format a USB disk as ext3 using OS X Yosemite? I want to use it on another system that is linux based but I wish to format it first before connecting to the linux system.
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1answer
1k views

SSD formating trouble and mysterious disks

Two days ago suddenly Apple services started to fail on my Mavericks machine. I couldn't shut down (logind - or something like that - crashed but could not be force-quit). I shut down twice from ...
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1answer
47 views

disk become empty after delete a large file

I have a 2T mobile disk with the format of NTFS. I store 1T files on it, including a large file with the size of 260G. After I delete the large file, all the file was gone. I remount the disk again ...
2
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1answer
2k views

Failed to make bootable USB drive and now I can't even format it

I want to do a fresh install of Yosemite and I got a brand new 8GB flash drive and I followed this tutorial. I formatted the USB drive and was copying the Yosemite installer, however I got the ...
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1answer
222 views

How Do I Recover Formatted Mac hfs+ Partition?

I was installing Win8 on a Mac where I got the error that I can because of GPT disk I dont know what MAC I have but the Mainboard is number is Apple Mac 942859f58194171B. I tried formatting the ...
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3answers
65 views

2010 Mac Mini Downgrade

I have a 2010 Mac Mini with no DVD drive and a 5,400 RPM hard drive. Of late, it's begun to get quite sluggish, and I'm fairly sure it's the slow HDD that's to blame. I took a look at the means of ...
0
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2answers
206 views

Real performance boost with multiple partitions

I have a 1TB Hard drive with multiple partitions where I had previously installed Snow Leopard. Now I'm making a clean install of Mavericks and I have a couple of questions: 1) What are the real ...
2
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5answers
46k views

I can't write to my flash drive, and it is already in the MS-DOS (FAT) Format. Why?

This is my first question on this website. I am using a Mac Air, and I have a flash drive in which I can read from. I am able to copy files from this onto my Desktop, or anywhere on my computer for ...
2
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2answers
244 views

How to play AVI files on MacBook Pro

Using GoPro software, I had imported videos to PC. However when I bought a new macbook pro, I transferred all files onto an external Hard Drive. They are currently in .avi format. I am struggling to ...
0
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1answer
690 views

Should I reformat a disk if Disk Utility asks me to?

I have a FAT32 external disc that was suddenly unmounted as I was using it. When I reconnected it and tried to Repair it in Disk Utility, I got the following messages: Verify and Repair volume ...
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1answer
249 views

Format SSD and restore TM backup

My SSD stopped mounting by itself on boot. So I booted into Single User mode, ran /sbin/mount/ -uw / and exit and it got mounted and I could boot from the SSD. However, after booting all I see is the ...
4
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2answers
12k views

View Time Machine backup drive on Windows 7

I use an external hard drive to regularly backup my Mac using Time Machine. However, I wanted to copy the data on this drive to a Windows 7 machine which does not work. It seems, that the PC ...
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0answers
61 views

Clone whole partitioning scheme to smaller disk

I have the following on my secondary disk. As I am not satisfied with it I would like to clone everything to the other one which is smaller unfortunately. /dev/disk2 #: TYPE ...
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1answer
18k views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
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2answers
768 views

how to create a 128MB HFS+ partition using diskutil

I have a ~ 500GB disk in my new Mac, and I would like to create a 128MB HFS+ (Journaled) partition using OS X, but when I tried to do this earlier today the smallest HFS+ partition I could create was ...
6
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1answer
14k views

Stuck in a boot loop after failed update to Mavericks, can't reformat HDD

I recently tried to upgrade a 2008 Mac Pro from Snow Leopard (10.6.8) to Mavericks (10.9.2) using the free upgrade available in the App Store. The upgrade seemed to go without a hitch until the ...
5
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2answers
35k views

How can I let Windows XP read Mac OS Extended (Journaled) drives?

How can I let another PC using Windows XP (Service Pack3) read Mac OS Extended (Journaled) volumes? Windows XP shows nothing.
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1answer
156 views

Should I format and upgrade to mavericks or upgrade to mavericks and format?

I am planning to upgrade on a Unibody Macbook (2008) to Mavericks. Mountain Lion is already installed and I felt it to be a bit sluggish when I upgraded. I also would like to start anew and clear some ...