When I boot the pendrive and choose the first option, the screen goes black, but on already I left it for hours and nothing appears!  P.S.: I already left separate space for the system and storage of ubunto in fat 32.  Version of MacOs: 10.15.4  someone help me please.  Thank you very much in advance.
31912
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?
27423
Ubuntu One is installed on my MacBook, OS X Lion, and appears to be working fine, other than it does not appear to load automatically at startup.  Please note that Connect automatically when computer starts is selected.  Is there a way to set this up, other than including it as a Login item under the User &amp; Groups in System Preferences? Which is what I have implemented in the interim. (I have Hide ticked so that one does not see the Ubuntu One gui pop up every time one logs in).  But I suspect that there may be a more elegant way of implementing the Ubuntu One start up.
77489
I have an iMac 2008/2009 issue and recently the computer would not boot and I would get a flashing question mark. Ran through all the usual steps, try boot in safe mode, flash RAM,  try single user for fdisk, put in OS disk and boot from CD, etc... No dice.   Replaced the hard drive and put the OS disc in the system, press and hold option. (holding C didn't work) I can see the OS disk but when I click on it the system will act like it is going to run and then freeze. The best I got was the OS X disc that changed the screen to dark grey and told be the system had to restart.  Purchased a usb mount for an external hard drive. Was able to mount the old hard drive to a laptop and run disk utility. Everything checked out.  At this point I am pretty sure it isn't the hard drive.   Any other hard ware items this can point too? My iMAC can also "see" the hard drive (and the recovery partition) when connected via the USB and I hold "option" on start up. But it crashes when trying to boot from either.  I am going to take out and re-install the RAM for giggles but I am not sure what else to do.   Ideas are welcome.
10063
I installed Ubuntu and after the installation, i can't boot to XP. When i choose XP from the Grub menu, I got black screen for like 30 sec, and then it returns to the Grub menu.  Thanks!
11861
I know this may sound stupid, but I was having a problem with my ubuntu, it wasn't loading.   So I was googling solutions and one of them was purging something and installing something   so I did it. The proccess took a couple hours, and it didn't work. It turns out it was something to do with my graphics card (which I fixed), but when I loaded it up, I had lubuntu.   Is there any way of reverting back to ubuntu?   Or is lubuntu better to keep? I have no idea, please help.
57672
My Ubuntu 14.04 is stuck when trying to login my desktop. The screen goes black and soon after that the login screen comes back.   I followed all steps in  but the issue was not solved.
29520
Not sure if the title is specific enough, so here we go:  I crashed my Windows pc, and now I want to install Ubuntu on that computer. I'm currently using my Mac, as it is the only operable computer I have left. I have downloaded the .iso. I guess my question is; How do I go about installing Ubuntu on my crashed computer from the external harddrive? I've used Ubuntu before, but I used to install it from a CD-rom. I tried reading the instructions, but couldn't really understand them. Please help  Edit: As Tom mentioned, I only want to install Ubuntu on the (formerly) Windows machine.  Anyways, thanks for the quick responses, I think I've got it from here. Cheers
73674
I have an intel Imac (early 2006).  I recently decided to install ubuntu on it as the sole OS as it was running 10.4.11 and was unable to meet my current needs.  The optical drive on it is broken,  so I downloaded the ubuntu iso,  converted it to a DMG and created a bootable flash drive.  Everything seemed to be going great.  I used gparted to wipe the hard drive and than began running the installer from the live enviro.   That's when things took a turn for the worst..  Half way through the installer crashed.  I attempted it a few more times,  but it eventually just froze solid.  I asked around what to do and was told to just reboot and try again.  Now it is not seeing the flash drive, and there is no OS to boot to,  so I'm just getting the ol' grey screen with a flashing question mark..    I bought a new 500gig external that I can format for a mac..  I'd like to try and install ubuntu on it and see if I can maybe boot the mac off it to try and fix and finish the install..    I mainly want to know how to convert an iso to a dmg using my other ubuntu machine,  but failing that,  I'm open to any suggestion.
121637
I want to do a clean install of el capitan OS. I booted to recovery mode, chose reinstall os x and followed the steps. So far so good. When it came to choose the destination disk where I wanted to install the OS, it did not show any hard drive, i.e Macintosh HD was not shown so I could select it. I figured I had to format it first. So I close the installation and went to Disk Utility. The problem is Disk Utility is stuck at loading and does not show anything.   My OS is corrupted, that is the reason why I want to do a fresh installation. With corrupted I mean, I can boot my system only if I go to single-mode and mount the hard drive with mount -uw / and then exit. But this is not a long term solution. I search everywhere in the web and there are many solutions out there, but none worked form me.  I tried erasing and formatting the hard drive when in single-mode with the help of diskutil. But this did not work because the DiskManagement Framework was missing. So I tried loading the files manually with launchctl. But still I can not use diskutil in single-mode.   I tried also fsck, it did not do any good.   I ran out of options. I don't know what to do.  Here is an image when I try to erase the partition via Disk Utility    And here is an image when I try to reinstall the OS. No Hard disk is shown to select
1644
I have installed Ubuntu 20 alongside Windows 10, then removed Ubuntu and grub issues were also solved, now I am unable to install Ubuntu 20 again. I am installing through USB and a black screen comes with some lines.  It is when I am booting the installer. Ubuntu is not installed on my system.
7344
So I installed Ubuntu 12.04 alongside Windows XP, and I played with it for a like an hour. When I wanted to go back to Windows, I chose the Windows option in the GRUB screen. It just gives a black screen and goes back to grub. I tried boot-repair as I've seen in some other post that it could resolve the problem, but it's all the same. Nothing changed. I can use Ubuntu but not Windows. Can someone please tell me how I can solve this? Thanks.
68052
I can't format my pendrive (where ubuntu was loaded as live-usb) . Whenever I do , they say .  This partition cannot be modified because it contains a partition table; please reinitialize layout of the whole device. (udisks-error-quark, 11)  What to do ? I use Disks in Ubuntu 16.04
70358
I want to put 2 partitions on my USB stick: first one (so Windows can see it) with FAT32 (so also macOS can write to it) and a second one, bootable with  on it.  I started looking how to partition the stick and I discovered that Disk Utility will not let me create partitions on the USB stick (the button is disabled), let alone configure the partition as bootable in the MBR.  There is plenty of ways to do that on GNU/Linux, other also works on Windows but I didn't find anything for macOS. Is there any free (as a beer) way to do that?
24806
When I go to Gparted and try to format my pendrive to exfat,the option is greyed out and I am not able to select it however I can choose other file systems such as ext4,ntfs,etc.  Why is that ?
87264
I am using Ubuntu 16.04 with GTX 1080. On my first boot, the screen turn black after I selected Ubuntu in grub. After I added nomodeset, the black screen gone however it only shows the Ubuntu default background image. It can't reach the login screen.
75285
So after working on my Macbook for a while. Menus will start blanking out.     Right click on Chrome in dock:    Top menu bar totally blank:    Right click on desktop:     Clicking the black Apple icon in the top left corner of menu bar:    Any idea what's causing it? I have to reboot or log out each time, which is no easy task given menus are blank.
82856
I've made a bit of a balls up...  When attempting to create a bootable Ubuntu usb drive I accidentally ran dd on my main system drive :(  sudo dd if=/path/to/image.img of=/dev/rdisk1 bs=1m   I realised what I'd done pretty quickly but everything seemed fine so I re-ran the command on the correct drive /dev/disk2 and thought "phew not sure how I got away with that"... Then things started going wrong... I could continue using the applications I had open but opening anything new / accessing the hdd caused that thing to lock.  Sadly I haven't been using time machine, lesson learnt!   I spoke to AppleCare who said I need to reformat the machine but I'm really hoping there's some way to restore whatever 1m I destroyed (I'm assuming something to do with the partition information). Wishful thinking?  Also, AppleCare told me to restart, which means I can only user repair mode utils.  Help!