I have a late model imac 27 with osx mountain lion. I am trying to install ubuntu using virtual box. I have ubuntu 12/64bit on a mac formatted flash drive and on a dvd. The computer doesn't recognize either one of them. States: Fatal error - no bootable disc Any suggestions?
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I'd like to create an Ubuntu live USB stick on a Mac to use to install Ubuntu on another machine. How do I accomplish this?
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How do I install Ubuntu as the only OS on a MacBook?  That is, I'd like to completely remove Mac OS X and install Ubuntu. I've tried dual-booting, but I've had so much trouble that I prefer to have only Ubuntu installed.
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How do I make an Bootable Ubuntu USB containing the the latest version of Ubuntu?  For completeness, how would I be able to do this on Ubuntu, Windows, OS X or another Linux distro?
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I downloaded VirtualBox OSE from the Ubuntu Software Center but it seems that that version is limited. I prefer to have the complete version and don't really care if it's closed source or not.  Can I install it via a terminal or do I have to download something from a website?  I don't know how to install software I download from the web. So far I've only used the Software Center.
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I installed Ubuntu 14.04.2 (64 bits) to my Mac OS X 10.9.5 (64 bits) using Virtual Box version 4.3.24. I am not an experienced Linux user. When I start Ubuntu, I cannot make my mouse work in the window that it operates; it disappears in the window most of the time. My keyboard works fine. I checked other questions on similar problems, but couldn't find a suitable solution. I cannot use mouse in Ubuntu (I installed it using my keyboard).  Here are the two messages that appears when I start Ubuntu; the first one relates to keyboard (mostly), the second one relates to mouse:   You have the Auto capture keyboard option turned on. This will cause the Virtual Machine to automatically capture the keyboard every time the VM window is activated and make it unavailable to other applications running on your host machine: when the keyboard is captured, all keystrokes (including system ones like Alt-Tab) will be directed to the VM.    You can press the host key at any time to uncapture the keyboard and mouse (if it is captured) and return them to normal operation. The currently assigned host key is shown on the status bar at the bottom of the Virtual Machine window.    The virtual machine reports that the guest OS supports mouse pointer integration. This means that you do not need to capture the mouse pointer to be able to use it in your guest OS -- all mouse actions you perform when the mouse pointer is over the Virtual Machine's display are directly sent to the guest OS. If the mouse is currently captured, it will be automatically uncaptured.    Any advices?  Solution Edit: I found one way to use mouse in the Virtual Box guest OS window. On the left above menu under the section Machine (on Mac) I clicked the button that says Disable Mouse Integration (Host key + I, Host key is left command key for me). After that I acted as if mouse integration was not available in my machine. Like stated in message 1 (in the above question) I pressed host key. I clicked capture in the box that appears. I can only use mouse in the window, when I want to use it in my host OS I need to hit the host key again. My new question is how can I make Mouse Integration really work?
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Is it possible to convert a Physical Ubuntu Install (Intel based PC with Ubuntu 10.10) to a virtual box disk, so that I can use that same environment on a separate pc or can keep it virtual for testing?  Something similar to "Disk2VHD" which converts a physical Windows 2K3 and above box into a VHD or VMware image.  Will be grateful for your assistance ! Kind Regards
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The HDD on my 27 imac Late 2012 has died. Is it replaceable?  At present, I switch on (soundless) and get the white screen which loads up one third and then freezes. I tried Disk utilities which told me my HDD was inaccessible and un-repairable.  If I fit a replacement HDD will I be able to restart, revive, reuse my computer?
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I downloaded the new OS X Lion from the App store. I am running the latest Snow Leopard on my 2010 15&quot; Macbook Pro. During the download, it somehow stopped while I was away from the keyboard. When I returned, I resumed it again, and after download completion, began to install it. When it rebooted, it began to install Lion, and when it was at the 33 minute mark, it failed. See pictures below:  I got the error message:  Install Failed Mac OS X could not be installed on your computer Mac OS X couldn't be installed, because the disk Macintosh HD is damaged and can't be repaired.   I read somewhere that I should put in the original install DVD, and run the Disk Utility to try to verify and repair. I put the disc in, booted it, and clicked through past the language selection, but made sure to wait for the top menu bar to appear to get to Disk Utility. I clicked on Verify Disk, and got this error message after it ran:  Invalid node structure The volume Macintosh HD could not be verified completely. Error: This disk needs to be repaired. Click Repair Disk.   After clicking Repair Disk, I got this error message:  Disk Utility stopped repairing &quot;Macintosh HD&quot; Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed up files.   I'm also running Bootcamp, with Windows 7 installed in it's own partition. I don't know if that has anything to do with why I'm getting these error messages or not, or if that's why it thinks the hard drive is damaged. How do I fix this? I am unable to get back into Snow Leopard. Every restart leads back into the Lion install, which results in these errors. I think many others are having this issue as well. I do have my files backed up (not in Time Machine, but manually on an external USB drive).  I don't mind wiping everything (including Bootcamp), but I rather that be a last resort. Reference:   on Apple Discussions site.
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I'm currently running Mountain Lion, but I'd like to redownload Lion (to create a bootable install drive). However, when I click the download button in the App Store, I receive a message telling me my current OS X is newer and the download will not start.    Does anyone know a way to download Lion when already running Mountain Lion?
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I have a 2009 Mac with a new blank SSD. I have a Snow Leopard install disk but it doesn't work (it was a replacement installer disk and has never worked), so I don't have a working OS X install.  I do have a Windows 7 machine.  How should I go about installing Yosemite? All instructions I can find require OS X at some point in the process. I can't even download it from the store unless I'm on a mac.
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I'm trying to install OS X Mavericks in VirtualBox on Windows 8.1. I have VirtualBox installed and the VM set up, but I need an ISO file to install the operating system.  I've searched around and found one result one a website I hadn't heard of, but Google Chrome flagged it as malware. I found a file on CNet, but it's an upgrade file for machines that are running an earlier version of OS X.  Is there an official source for downloading OS X ISO files? If not, is it possible to get the required ISO file without already having access to OS X?
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According to  its supported platforms are:   Ubuntu 14.04 Ubuntu 16.04 Ubuntu 18.04   Is there any way to install it on a machine running Ubuntu 19.04?
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I am running Ubuntu 13.04 on an iMac. I have all the specific requirements to play the game, as I have done on this mac before. I'm just wondering if it's possible to run it on Ubuntu?
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I wonder if someone can help me? I am fairly new to trying to actually understand and use computers myself rather than just buying whatever Windows/Mac wants me to! You will get a giggle from my flawed attempts anyway :-)  I would like to start using Ubuntu on my PC, just got a new harddrive and did have a borrowed windows 7 disk as was planning to temporarily install it so i could get ubuntu. However I didn't have high enough spec hardware for win 7 (I think it is due to only 1gb ram, i do have 64 bit technology and a 1tb harddrive). I am quite happy to install 32 bit ubuntu and hear it is easier the use than 64 anyway.  So I have one other rubbish mini laptop (windows xp) which i am trying to use to get ubuntu onto a usb (laptop has no cd drive) so i can install it on the pc. First tried just downloading ubuntu 13.04 desktop onto a usb and trying to boot the pc from it which gave the message 'no operating system'. Then I tried this to create a bootable usb which sounded promising:  . However then it starting asking for my saucy desktop iso in order to install it onto the usb stick, can't really manage to find out what a saucy desktopp iso is, maybe a mirror image of an operating system, no idea why i would need that.  So in short, I'm lost. All I can think of is getting windows xp somewhere so i can get my pc to work and install ubuntu from the internet on that, or going to a friends house in the hope that creating a bootable cd is easier than creating a usb.  Sorry for my general ineptness and hope someone can help!
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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 make the new copy bootable?  I'd like to make a new backup copy of the USB rescue device for my MBA, preferably on a much larger flash drive with room for a backup of some of my working directories.  Added:  And is it possible to make, not just a rescue drive, but a bootable USB drive that will boot a fully updated version of the OS (say 10.6.8 or later)?  If so how on a MacBook Air 11, and how big a USB stick will this require?
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I am seeking suggestions on what may be going in with an iMac I am currently troubleshooting, as it’s displaying behaviour I do not recall seeing before.  Short story  This iMac refuses to boot up. It gets the Apple logo, gets past the progress bar, and then gets stuck on the grey screen for about two minutes before rebooting itself. However, what makes this odd is that I can:   Start the iMac in Target Disk Mode and use it to successfully boot up other Macs. In doing so everything seems to work perfectly fine. Successfully boot the iMac from an external drive and everything seems to work perfectly fine.   Long story  I was presented this iMac about 2 weeks ago as it refused to bootup. That is, it would commence booting up and cycle through the Apple logo and progress bar, but after the progress bar completed it would remain on the grey screen for a couple of minutes before rebooting itself and doing the same thing all over again.   To address this I undertook the following troubleshooting steps:   Resetting SMC - failed Resetting NVRAM - failed Starting up in Safe Mode - failed Starting up in OS X Recovery Mode – failed Starting up in OS X Recovery Mode via the internet – failed Undertook an extensive hardware test using Apple Hardware Test (AHT 3A213) - passed Started iMac in Target Disk Mode and retested hard drive using Scannerz on another iMac - passed Started iMac in Target Disk Mode and reformatted the hard drive and did a clean install of Mac OS X El Capitan 10.11.6 - successful Migrated data from a Time Machine backup - successful   After these steps I tested the iMac for four days with no issues in terms of booting up and using the computer. On the fifth day I needed to manually import seven Apple Mail mailboxes. I did these one by one and six of them imported within minutes.  The last mailbox was showing as being 270 GB in size. I knew this was inaccurate, but I decided to import the mailbox so I could do a mailbox rebuild to correct whatever corruption had taken place. This import took over 12hrs to do but seemed to work fine and Mail was displaying the emails.  I then tested the iMac on and off for another day to ensure it had no problems booting up. This was successful.  I then decided to initiate the mailbox rebuild, but as soon as I did the screen went black and stayed that way regardless of any keyboard shortcuts I tried using. I waited an hour, forced a reboot, and ever since the iMac has returned to its original behaviour of not booting up – it would get past the progress bar and stay on the grey screen for a while before rebooting itself and starting the whole vicious cycle again.  I have again retested the hard drive, processor, RAM and Video Ram by starting the iMac from an external hard drive and using a combination of the following packages:   Apple Hardware Test (AHT 3A213) Scannerz TechTool Pro Memtester (under the Homebrew subsystem)   And now I have a situation where I can boot the iMac from external hard drives, and also use it in target disk mode to boot up other Macs, but cannot use it to boot from its own internal drive.  At present I have isolated the internal hard drive and am running a scan to check for any malware.   In the meantime, I am wondering:   Has anyone come across a similar scenario and, if so, what was the cause? Assuming I find no malware, do I go through the reformat/clean install/migration process again, but this time not import the last mailbox and see whether the iMac works fine? Any other suggestions?   iMac specs are as follows:   iMac (27”, mid 2011) 3.1 GHz Intel Core i5 8 GB RAM AMD Radeon HD 6970M 1024 MB 1 TB 3.5” SATA HD Mac OS X El Capitan 10.11.6
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If you select "USB" and "Mac" on , it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from.  I've followed them to the letter two or three times on different USB keys, and it doesn't work. There's a very great deal of technical discussion about EFI etc. but this set of instructions seems to suggest it should just work, but it doesn't.  Help? I'm increasingly unhappy with the more locked-down approach Apple is taking, and I'd quite like to start using Linux with a view to transitioning over to using it as my main operating system, but booting from the CD takes forever, runs slowly and I'm really hoping to get it moving off USB.  Can anybody help me?