I have Kubuntu installed in a VirtualBox (Windows host), but as of the latest updgrades it won't boot anymore.  I found an earlier kernel that works, though, and I want to set it to default.  -  What I do  When I boot, I press shift so as to see this:    I go to Advanced options for Ubuntu, to see:    and I wrote which one I want to boot.  It is the 6th, counting the first at 0.  --  On Kubuntu, I go to /etc/default, open grub, change GRUB_DEFAULT from 0 to 6, then run update-grub.  But it still does not work when I reboot the virtual machine.
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I have both Windows 7 and Ubuntu installed on a shared machine. Because a lot of the non-developers use Windows, I'd like to change the boot order to make it easier for them.  Currently the boot order looks like the following:   Ubuntu 11.10 kernelgeneric *86 Ubuntu 11.10 kernelgeneric *86 (safe boot)  Memory test Memory test Windows 7 on /dev/sda6   How do I change the default order so that Windows 7 is at the top of the list?   Windows 7 on /dev/sda6 Ubuntu 11.10 kernelgeneric *86 Ubuntu 11.10 kernelgeneric *86 (safe boot)  Memory test Memory test
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I recently have upgraded my PC, my new Motherboard (ASUS M5A99X EVO) uses UEFi instead of the regular MBR option.  I have a Ubuntu 11.10 installation that I did when I had my previous hardware (MSI MS 7267) , Ubuntu alone boots fine, and so does Windows 7, however Windows 7 is using UEFI (GPT) boot whereas Ubuntu is using MBR.  I have my OSs in separate drives, so that GRUB2 wont' get replaced by the Windows Bootloader and viceversa, as I said both OSs boot fine on their own, but to do that I have to disconnect one drive in this case the Ubuntu drive as it prevents Windows from loading.  Now my question is, How can I change/convert Ubuntu's drive so that instead of using MBR it uses GPT and allow Windows to boot?.   Preferably without reinstalling the whole system or lose any data.  And if I were to wipe the drive, How can I install Ubuntu in GPT, UEFI, whatever it is mode?.  I have used gdisk to convert from MBR to GPT, but now Ubuntu can't boot seems like grub just doesn't start.  I have re installed the OS, and the drive is GPT now by default however grup-pc is still being used instead of grub-efi.  How can i make Ubuntu boot from EFI?.
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Can you guys please help me use Grub Customizer to set an older version of the kernel 4.4.0 of Ubuntu 16.04 LTS as default when booting? I'm not using a dual boot system, and I have installed 4.4.8 kernel to help me solve the suspend problem, but it's draining my battery.  What do I have to do, I wouldn't want to f*** things up.
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I have a windows 7 Computer.  I want to install ubuntu.  I know if I install to the unallocated it will set up the multiboot like it should.  However, I want to set the partitions up manually, I want different stuff in different partitions, e.g. logs.  If I do this, will the installer still set up the multiboot like it should?
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Im trying to install Kubuntu 14.04 along-side Windows 7 x64 but there are problems in Disk Setup section, installer does not show my drives properly as they are, i left drive empty to install Kubuntu but this drive does not shown at all and all drives are listed some way un-regular.   this is how my drives really are:    i want to install Kubuntu in my drive D but this is how Disk Setup is showing my drives:    and when i click on manual:    i even shrink-ed my drive D to assigning for root, home and swap but there are bot shown to be chosen. where is the problem? how can i tell installer to assign the drives that i want?
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I upgraded my kernel today with ukuu, and since then I cant boot because i'm getting this errors:   error: /boot/vmlinuz-4.18.12-041812-generic has invalid signature error: you need to load the kernel first   I have dual boot with windows 10 and ubuntu 18.10 (Upgraded today)  Update: I managed to boot to older kernel that i chose from "Advanced  options for Ubuntu" in grub  But I need to upgrade my kernel and if I do that I still get the same problem...
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I have Windows 7 and 8 installed on my laptop, I just installed Ubuntu.  It normally boots up in Windows 8, how do I change that?
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I'm running the latest Kubuntu (12.04 beta 2) and I would like to run the latest emacs (currently v24). The repos are one version behind. What's the best way to install v24 or later (and avoid future version conflicts)?  Also, is there any reason not to aways use the GUI version of emacs if X is running? For example, could I set the GUI emacs version as the default text editor and use it to edit cron jobs (crontab -e)? I'm assuming the answer is yes, but since I haven't done that yet (my default editor is nano), I want to check if there are reasons I should leave nano as the default editor.  Usually when I'm working on the command line I end up using nano. Now that I think about it, I have no idea why I keep doing that. Is there any downside to calling a GUI editor when working in an X terminal?  EDIT: I briefly tested these two versions   GNU Emacs 24.0.94.1 (x86_64-pc-linux-gnu, GTK+ Version 3.3.20) from  GNU Emacs 23.3.1 (x86_64-pc-linux-gnu) installed by default in Kubuntu.   .  Unfortunately (for me) the defaults installed version (23.3.1, 23.3+1-1ubuntu9) is the nox version.   Package: emacs23-nox Status: install ok installed Version: 23.3+1-1ubuntu9 Replaces: emacs23, emacs23-gtk, emacs23-lucid   The package with version 24 opens in GUI mode by default. That's what I prefer. Some of the version 24 changes that interest me are listed in the references below.   But there appear to be a multitude of different packages and versions I could install.  References:   What’s New In Emacs 24 (part 1) | Mastering Emacs  "    shell-mode uses pcomplete rules, with the standard completion UI.  Yowzah! There’s a lot of cool, new functionality hidden away in this gem of a change." EmacsWiki: Recent Changes
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I have Ubuntu installed alongside of Windows and in bootloader (grub) these operating systems as all of yours are with long names! How can I change the names in grub? for example I want to change the 4th one to "my fathers OS" and when I choose it in the grub it will go to the Windows.
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I am on 14.04 and just did an update on one of my web servers. I am using the GUI. I ran the updates and it broke my VM.   I am new to Ubuntu and Linux in general so please bear with me.   I was able to get the VM to load by selecting a previous kernel on the boot loader.   My question is, how do I revert back to that kernel so that this VM does not boot into it every time the machine is restarted?
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This is a Q&amp;A that I recently have figured out, so I have posted the answer below.  After installing Windows 10, every time I get a kernel update or I run the update-grub2 it always shows Windows 7 or Windows Recovery Environment instead of Windows 10.  How do I fix this permanently?
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Whenever I boot on Ubuntu, I see the entire GRUB menu by default. Is there a way I could make it simply auto-boot if uninterrupted within X seconds? I remember that this was the case on previous releases of Ubuntu, it would only show the GRUB menu if you held down a button during the boot.   How can I make GRUB do this by default and just get on with the boot process?
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I was trying to dual boot elementary os with windows on my laptop (Asus Zenbook UX305). To do that I shrank the windows partition using the windows disk manager, and then used the Elementary installer's "install alongside windows" option to set up the linux partitions automatically. When I rebooted after installing I was put into the grub console. I was able to boot linux manually with the commands  grub&gt; set root=(hd0,gpt4) grub&gt; linux /boot/vmlinuz-3.19.0-26-generic root=/dev/sda4 grub&gt; initrd /boot/initrd.img-3.19.0-26-generic grub&gt; boot     and I found that running the command  grub&gt; configfile (hd0,gpt4)/boot/grub/grub.cfg   would load the normal grub menu as is supposed to happen - so there don't seem to be any problems with the config file itself. I also found that the root and prefix are on (hd0,gpt1), so running  grub&gt; set root=(hd0,gpt4) grub&gt; set prefix=(hd0,gpt4)/boot/grub grub&gt; insmod normal grub&gt; normal   also loaded the normal grub menu. So possibly the problem is that grub is looking on the wrong partition?  In my BIOS, I have a choice between using grub and the windows bootloader to boot. Selecting the windows bootloader boots me directly into windows without any problems.  However, I can't find any way to get any fixes to stick after a reboot. I've tried rerunning grub-install /dev/sda, recreating the config file with grub-mkconfig, and using the Ubuntu boot repair gui tool - none of these have worked. Is there any way to fix this short of reinstalling either or both OSs? I'd rather not have to reinstall windows if possible.
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I have a Win 7/11.10 dual boot system with Grub 2 as the default bootloader. However, I want to make Windows bootloader the default bootloader (grub 'dos' like interface scrares the hell out of my sister) so when I start the PC I will have the following boot options: 1. Windows 7 2. Ubuntu  NB: A process to reverse this operation so Grub can be the default bootloader again will also be appreciated
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i'm on ubuntustudio and i want to format my hd and try kubuntu (install in my acer notebook, no partion, no double operating system problem, only istall it) i've downloaded iso file ( kubuntu-10.10-desktop-i386.iso ), insert usb pen drive, then: system > administration > startup disk creator erased usb pen content, and "make startup disk" finally, reboot computer with pen inside usb port  normal boot didn't start (as expected) but only black screen with this signal:  SYSLINUX 4.03 2010-10-22 EDD Copyright (c) 1994-2010, H. Peter Anvin et al unknown keyword in configuration file boot:   i've tried different usb pen stick and different iso files (ubuntu, kubuntu, netbook edition).. always same problem (sometimes only the first line without "unknow keyword in conf file" error)  some advice?? sorry for my bad english
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How can we add a kernel to grub2? i knew the stuff we could do with the former versions, but it seems to have changed. What files should we edit?
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I'm not sure I'd actually do this, but is there a way to make GRUB automatically select the boot option I didn't use last boot? i. e. If I booted into Windows last boot, it selects Ubuntu. If I booted into Ubuntu, it selects Windows. I was just wondering because I often find myself rebooting to switch OSes, as I have different games that I run on each (though with my new rig I don't need to run stuff on Ubuntu just for lower OS resource usage), and I was wondering if I could make it so that every time I pressed "restart" from either OS I wouldn't have to change selections. In practice this would also affect non-restart startups, so then I might have to boot twice to get the OS I was using last time.