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

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10
votes
5answers
44k views

How do I make a bootable USB flash drive a Mac?

Does anyone have a Terminal command-line recipe for making a new bootable USB flash drive for one of the new MacBook Air's? Is there a way to dd copy the USB boot device that comes in the box and ...
5
votes
8answers
27k views

Checking for bad blocks without formatting

My Mac tends to pause every now then when preforming simple tasks such as right clicking, opening menus and typing (It actually just froze when I started typing this question.). I've read in a few ...
20
votes
5answers
30k views

Lost password on Mac OS Extended (Journaled, Encrypted) Drive. Want to reformat it

I am using a Seagate Free Agent Desk external drive as my Time Machine on a modern iMac running Lion. I made the mistake of encrypting the drive, and I do not remember the password. I dont mind losing ...
5
votes
1answer
9k views

Why can't I write to the last block of my SDXC card on my MBP?

I have a 64GB SanDisk SDXC memory card which I would like to use with my MacBook Pro and its SD card slot. However, I am having some trouble formatting/partitioning my SD card and I can't figure out ...
30
votes
3answers
16k views

What are the differences between journaling HFS+ and non-journaling HFS+?

I'm about to format an external hard disk drive (HDD). What are the key differences between journaling HFS+ and non-journaling HFS+? Apart from the fact that one has journaling and the other does ...
20
votes
4answers
9k views

HFS+ case-sensitive or case-insensitive — which type to use for the primary drive partition?

What reasons are there for choosing the case-insensitive version of HFS+ when formatting the primary drive partition? Would case-sensitive not always be the best choice?
1
vote
4answers
6k views

How to erase and reformat SD card to ext3 on my macbook to prepare it for my raspberry pi

I'm trying to reformat my 32G SD card to prepare it for my raspberry pi. My GUI program on my mac does not allow me to format it to ext3 which is what i'm told to reformat it to for my raspberry pi. ...
2
votes
2answers
3k views

Which format for external disk for performance?

I'm using OS X Mavericks and just got a new external hard disk. I don't need to share it with a PC (so no need for FAT) but I do want it to have better I/O performance. I'm a bit confused by the ...
0
votes
1answer
4k views

Error copying large file to usb 16GB Thumbdrive

Trying to copy a file (Win7_IE8.vhd) to a USB drive. The file is 9.07GB in size according to my Mac file info. The USB drive is 16GB. I bought it new 10 minutes ago. This is its first use. I get: ...
1
vote
2answers
7k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
1
vote
1answer
2k views

When is the GUID partition table (GPT) preferred over Apple partition map (APM) for external drives?

I have seagate external portable hard-drive 1 TB, and I will be using with following Mac's. 13" White MacBook (Intel Core 2 Duo) running Snow Leopard 13" MacBook Air (Intel Core i5) running Lion iMac ...
0
votes
1answer
171 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 ...
0
votes
1answer
148 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 ...
0
votes
1answer
3k views

External drive format to be writeable on both Mac and Windows

What file-format an external drive has to be for it to be writeable on both Macs and Windows machines? I have a 750GB external drive originally formatted in NTFS for Windows, but it's not writeable ...