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? Short answer: You can't. Apple doesn't want you to boot an OS other than OS X off USB. If your Mac has a working optical drive, use it.
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Plug in your bootable USB device and boot up your 2018 2019 Macbook Pro from USB, hold the Command (⌘) key and you'll see the startup disk screen, select.
It will save you pain. If you have a newer Mac (64 bit), just remember to use the ( amd64+mac), not the regular amd64 iso. (See for an explanation of the difference)Longer answer: (Ok, I lied above.) You can, but 'it's complicated'.
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One method that has worked for a number of people is to dd the bootable USB key to its own partition on your hard drive and then boot off that partition. The basic method is explained nicely.This doesn't always work, even on the same hardware. In particular, if you have a MacBook Air, which doesn't have an optical drive, then the forums are filled with posts of trying the dd-to-a-partition trick and failing.
For MacBook Air owners, it is strongly advised to obtain a MacBook Air SuperDrive (no, a regular USB CD/DVD drive ) and then use that to install through the usual CD route (using the Mac iso for a 64 bit install).Lastly, actually worked(!) to install 11.10 onto my MacBook Air 3,1 (late 2010 model). However, I expect some modification is needed to work on other versions of the Air, not to mention other Macs. How to create a bootable USB stick on OS X/macOSThis procedure requires that you create an.img file from the.iso file you download.
It will also change the filesystem that is on the USB stick to make it bootable, so backup all data before continuing.Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight).Insert your USB flash media, which must be 2GB or larger and has only 1 partition on the USB flash drive. After a LOT of trouble with various methods i finally got ubuntu 13.04 32bits working on a macbook 2,1 (mid 2007). My DVD drive is broken so i really needed a live USB.(DISCLAIMER:)I´m no programmer but after setting things up the following way it worked like charm. Install the latest version of rEFIt. Download Mac Linux USB Loader from this page:. Download the source code from the same link. You will need the bootlA32.efi file located in the 'EFI' folder.
Insert your USB flash drive, and format it to FAT 32 using disk utility. Open Mac Linux USB Loader and select the.iso file you want to boot.Click on Create Live USB and follow the instructions, it's a pretty straight forward process.My macbook model just refused to boot on efi64, so i had to do some tweaking here:.Go ahead and open the USB drive.
Go to the 'efi' folder and then the 'boot' folder. Inside you should see a file named bootX64.efi.Erase it and place the bootlA32.efi file instead.Now just reboot and from the rEFIt menu choose to boot from the USB drive.I Hope it helps somebody out there!
This is a common problem for which the answer has become complex.Your computer’s needs to be instructed to check for a bootable CD or DVD before it tries to load whatever is on the hard drive. Right now, your computer is configured to either ignore the CD/DVD, or check the first, at boot time.The problem is that newer machines don’t have a BIOS; they have something called.And UEFI makes things more complex.UEFI and, an acronym for Unified Extensible Firmware Interface, is a new type of BIOS that includes several enhancements. You’ll often see it referred to as “UEFI BIOS”, or even incorrectly as “BIOS”, because that’s what we’ve become used to.One of those enhancements is something called “”.matters because there’s a glaring security hole that’s been present in almost every PC since day one. It’s very simple and very powerful. If you have physical access to the machine,. and if you can that machine,. and you can boot that machine from a CD/DVD or device,.
then you can gain total access to that machine. RelatedHave an older machine that doesn’t have UEFI, but rather has the old-style traditional BIOS? Your life is easier. Check outIn fact, I often leverage this fact when people have lost their system administrator password. Walks you through the steps to reset the administrator password by booting from a CD-ROM with the appropriate tools.Secure Boot, when enabled, prevents this.
It prevents changes in the boot order and can restrict booting to only “official” boot images.Windows 8 and Windows 10 take advantage of UEFI and Secure Boot. That means that if your system has UEFI and Secure Boot turned on, then in order to boot from something other than the hard disk, you may need to turn Secure Boot off first. Turning Secure Boot OffRight-click on the Start menu and hold the Shift key down while clicking on Restart.
Restart options.This will reboot into a “Choose an option” screen: Choosing a restart option.Click on Troubleshoot and then on Advanced options. Advanced Options. (Click for larger image.)I can’t tell you what comes next, because it’s different from machine to machine. Report this adYou may be able to modify the settings we care about by clicking on Startup Settings, if it’s present as shown in the image above.If your machine uses UEFI, there may be an additional option: UEFI Firmware Settings. Click on that to go to the UEFI interface for your computer. The option to disable Secure Boot should be in that interface. You may need to check your computer’s documentation for its specific location.
Changing the boot orderLike BIOS before it, UEFI controls the boot order: which devices the computer tries to boot from and in what order.Look for the settings to ensure that the USB or CD/DVD drive is earlier in the sequence than the hard disk, so the system will boot from your before booting from the internal hard drive. No CD/DVD drive?What if you need to boot from optical media like a CD or DVD on a machine that has no CD/DVD drive?The most common solution is to get a USB version of what you want to boot from.
Many installers, recovery media, and emergency boot disks are now available in USB thumbdrive versions.If all you have is optical media, however, you can get an inexpensive external USB CD/DVD/Blu-ray drive and configure your computer to boot from USB when needed. You’ll be able to use that drive for other things, and on any machine with a USB port. Related Posts- You probably can boot from an SD card, but it's also likely to be more cumbersome than just using a USB device or optical disc.- Most computers with a CD or DVD drive can boot from that drive, but it frequently takes a small configuration change in the computer's BIOS.- UEFI is a replacement for the original BIOS that’s been running computers for almost a quarter of a century.
UEFI allows manufacturers to take advantage of the security capabilities of the machines they produce.- How I resolved a classic chicken-and-egg dilemma: I have to turn the machine on to back it up, but I want to back it up prior to turning it on.Posted: September 5, 2019in:This is an update to an article originally posted July 30, 2014Shortlink:Tagged:,. New Here?Let me suggest my to get you started.Of course I strongly recommend you - there's a ton of information just waiting for you.Finally, if you just can't find what you're looking for,! Confident ComputingConfident Computing is the weekly newsletter from Ask Leo! Each week I give you tools, tips, tricks, answers, and solutions to help you navigate today’s complex world of technology and do so in a way that protects your privacy, your time, and your money, and even help you better connect with the people around you. A friend found another way to boot from a non-UEFI drive.
He has a new HP UEFI desktop and wanted to boot from an existing MBR SSD that had been running Windows 7 on a slightly older, but similar machine. In the BIOS, he simply (or maybe not-so-simply) disabled the GPT boot drive which contained the bootable system supplied by HP. This prevented the machine for using it as a boot drive, so the BIOS looked for another eligible device in the list, apparently settled on the SSD, and booted from it OK. He can still access the GPT drive for data storage from within Windows (7). I couldn’t begin to describe all the potential problems with this, but it’s working for him, and I suspect would work for any bootable medium, but may be BIOS-dependent.
On some of the recent Asus motherboards I encountered a few features that can make your life more difficult. To make the computer boot faster, the BIOS had a default setting of only allowing a USB keyboard to be acknowledged in the boot procedure. Every other type of USB device just would not be recognized until after Windows was booted completely.I was already familiar with the discussed procedures in this clearly written post that will help many, I have no doubt. But it got me frustrated that my system wouldn’t boot from my pen drive, even though the system was configured as described here. Until I found out about that BIOS option that might shave milliseconds of the boot procedure at best, my system remained dead in the water. I tried options at account.live.com, but have not received response emails or texts from Microsoft.
Initially, they indicated an up to 24 hour wait. Chat specialist directed me back to same options and I tried them again, with same result.
Chat specialist said if not 24 hours, then maybe 72 hours. LENOVO specialist has said I may have to reinstall Windows. This would be disasterous. Seems like I have the classic Catch 22 here. This is taking security a bit too far when I have to try to hack into my own computer.
Every other online account provides a simple solution for a forgotten password. Microsoft can’t figure out how to solve this simply? Obviously, this is not a priority for them. This is crazy!. I was just wondering You are all talking about booting from a cd and going to bios to change the boot order. In my case though (Samsung laptop, windows 8) the laptop starts up, Samsung logo appears, and the laptop restarts after about 2 seconds. I cannot get into the BIOS no matter what I press.
Though it appears to be a bad board or hard drive, this happened before and by pressing the F buttons chaotically, a couple times it has actually booted up. So I was wondering if there is any way to get into BIOS without having to use the F buttons? I called Geeksquad and the guy on the phone told me there is definitely a way to access it but he wouldn’t tell me unless I brought in to the store, which I didn’t want to do.Thanks for any help in advance!. I am trying to reinstall windows 8 on a dell desktop and it kept going to start up repair. I searched for a solution and unfortunately did not come upon this site first. The instructions said to disable secure boot and restart the computer. It left out the next instruction of changing the order of the boot drives.
Now when I turn the computer on, I see the power light on the tower, no power light on the monitor and nothing happens. Nothing loads, just a black screen, f8, f2, f12, esc, nothing. Any help or suggestions would be greatly appreciated. I have the same problem of booting from a cd. I downloaded dban, burned it to cd thru Windows burner, but could not get my HP Pavilion to boot it. Thinking that maybe the Windows burner is the problem I then ordered a dban cd from ebay but it doesn’t work either.
I have been working on this problem all day and have looked at many articles and videos on the internet. Your article makes the most sense. I was able to follow your instructions and I disabled the secure boot and changed the order so that usb/cd is now first. It still won’t boot from the cd. I am about to pull my hair out.
I have read all the comments on your article and can’t see what else to do. Please help!.
In regards to your comment rules, I would say that not only do a lot of people just comment without reading the article, but I bet many more comment after merely skimming the article, which in my opinion is just about as bad.That said, thank you for this because I was at a total loss on how to get into the BIOS on Windows 10. The same steps worked for Windows 10 as you describe for Windows 8. I also didn’t even know about the shift key with restart.I left Secure Boot enabled but I changed the boot order to try CD first. I was able to get into my Ubuntu CD, so hopefully it will also get back into Windows 10.If not, I guess I will just have to stick with Ubuntu Oh, darn ?. This is a copy of the relevant page of the Dell 8700 Users Manual. What is the difference between “Secure Boot Control” and “Secure Boot Mode”?
Hi LeoHP Notebook PCs – System Information (F1)This document pertains to HP Notebook PCs with the HP Startup Support Environment.To access the UEFI System Information, turn on the computer and immediately press the esc key to display the Startup Menu, and then press the F1 key to view the system information.The (F1) System Information is also displayed in a different format within the (F2) System Diagnostics function. The fields of information displayed may be different based on the model.This is result I gotStart up menuF1 System InformationF2 System DiagnosticsF3 Boot Device OptionsF10 Bios SetupF11 System Recovery. If I have physical access to the machine and can reboot that machine, then usually I can press the magic key (Del, F2, F11, whatever) to get in to system setup and then I can disable Secure Boot and enable “Legacy Boot” or “CSM” so I can boot from another device.
Therefore unless the user has set up a password for the setup program (unlikely) Secure Boot does not solve the problem of having physical access to the machine. Even in that case, it is a simple matter to take out the hard drive and read it on another computer.Secure Boot can prevent the computer from booting from an infected external boot device, most likely a bootable flash drive. I don’t think this is a very common problem. Even if the drive was infected, most computers are set to boot from the hard drive first, unlike the old days where computers were set to boot from the floppy first.Secure Boot prevents the system from booting from “unauthorized” operating system loaders. This is a good protection if the Windows boot loader has been compromized by malware. However it is not so good if you want to boot from a CD/DVD/flash drive to troubleshoot or if you want to install some other OS.In my experience, what Secure Boot primarily does is make troubleshooting and repair a royal pain. In the quest for faster boot times, manufacturers have made the period of time you can press the magic key so short that it can be nearly impossible, and/or they have dumbed systems down by hiding any boot time messages that tell you what the magic key is and when you can press it ins the boot sequence.
Since most of the boot time is due to the OS loading and not the POST/BIOS/UEFI, adding a second to make it easier to get in to setup would not be significant.This is a poor design decision, along with the idiotic change in Windows removing the ability to easily boot in to Safe Mode. Before commenting please:.
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