This guide will teach you how to create a bootable USB Flash drive of Mac OS X Lion 10.7 and install Lion from USB, rather than downloading it from Mac App Store on each and every Mac computer you own.Every time you you want to install OSX Lion on a Mac you will need to download it from Mac App Store all over again.
![]() Usb Lion Bootable Mac OS X Lion 10Usb Lion Bootable Install Lion FromThanks to the bootable USB method which eliminates the downloading of Mac OS X Lion for each and every device and lets you install Mac OS X Lion on any Mac. This method not only eliminates the wait for the official, it also saves you 40 ( Mac App Store version costs 29). Locate the file named: InstallESD.dmg and copy it on your desktop. The SanDisk USB drive was formatted in one partition which ended up at 7.69 GB. ![]() Although I havent created bootable USB for Mac Lion but created a bootable disk for Mac OS X 10.7. One can select to create a clone of either the entire disk with all the applications installed in it OR create a minimal system with selective applications in it. I was having problems trying to restore the DMG directly, and mounting it first and restoring the contained disc image is what I had to do. This is similar to the process of making a bootable Lion installer DVD, but I prefer a USB flash drive because its faster, smaller, and I have a MacBook Air so an installation DVD isnt too useful for me. If you have anything stored on the USB flash drive youre going to lose it, so be prepared for that and back it up. This is why we mounted the InstallESD.dmg file earlier, because we can just drag and drop the Mac OS X Install ESD image into the Source if you didnt mount the image, you can manually locate and select the image file yourself by clicking on Image. If youre wondering about the other drives pictured, its because I am dual booting Lion and Snow Leopard, and Recovery HD is the small recovery partition that Lion installs on its own. This process should work with a standard external USB hard drive too, but I have not tried that specifically. I get this message when I click download, This version of Mac OS X 10.7 cannot be installed on this computer. Go and look in your Applications folder for an item called Install MacOSX Lion. So i just installed a fresh copy of Lion, and I can access my files from my backup from my External HD at a later date, can copy them over, etc. I guess its just an older machine and thats why, but sometimes the fans spin at 6,600rpm when i am doing pretty much nothing (Chrome, maybe a bit of mail). I suspect its just a mac issue internally, and not software now. At least i can take it in and tell them that now, because i need Lion on the drive to access old programmes and files. Usb Lion Bootable Full Back UpI have an external HD with a full back up of my previous Lion OS. Can you confirm before i go ahead, something If i install Lion and try and back up to the 300GB Lion partition, will it fail due to lack of space, or. I prefer Lion. Yosemite is a bit flashy, and kinda crap IMO. The drive shows folders but no files,, I cannot partition it or do I want to No as my 9 years of photos are on it, Now, I have the lion ox 10.7 on disc and on usb stick, is this the same thing. There could be other issues too, but its impossible to know without someone being there to see and troubleshoot. Apple Store could be helpful, but data recovery may be a better option. It accepts the password, but leads only to the CIRCLE-SLASH sign. Disk Utility cant repair or restore because problems found with the partition map, and it cant verify system storage. Anyone got an idea what is wrong here The system is an Intel CPU so thats not it. The only thing that is slightly different is when I made the disk the step that says Right-Click then restore, I do not get that option only the top 4, so I used the Restore Tab is this the problem If so why dont I see the other options when I right-click. I basically followed the instructions from OSX Daily page: Make a Bootable Mac OS X 10.7 Lion Installer from a USB Flash Drive. Though About.com has a nice set of instructions as well.) I had a copy of the Lion installer. I just wanted to confirm that this works perfectly with Mountain Lion too.
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