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I installed Ubuntu-20.10 on my computer. So now there are two operating systems on my computer, Ubuntu and Windows 10. But I turned on the computer and found that the computer automatically entered the Windows operating system without entering the selection interface of operating system. And there is no Ubuntu startup item on the boot option in the BIOS.
My guess would be the installer didn't make a boot partition. Could be allot of reasons.
Does your bios have UEFI ? some bios will launch a usb installer not from UEFI with can screw up the installer. other times it's just a wrong button pressed.
usually people have the opposite problem. Make sure your bios is up to date and when installing again check the partition summer before you hit install to make sure its making a bootable partition or including it somewhere.
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Closed 2 years ago.
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I am trying to install windows 10 through bootable USB. In the installation window, It keep on installing and when it goes to finishing up section. It automatically reboots and after rebooting I am getting an error 'Operating System' not found.
Is there any problem with the windows 10 ISO? Anybody please.
Thanks,
Awais
Look into bios and see from which device you are booting from. That might be the cause.
1.I would suggest to reset your bios
2.set bios to Legacy or UEFI whatever partition system you used while installing window
3.set the boot priority to the Hard-disk
4.Save & exit, Now try booting...
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Closed 7 years ago.
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I have Fedora 11 installed on VirtualBox. By accident some files in /var directory were damaged or removed(I don't know what exactly). Now when trying to run Fedora, it goes untill choosing the user and freezes. No reaction at mouse and keyboard clicks. Does anyone have any suppositions how to run it, or at least how to retrieve files from virtual machine? I booted it to the terminal where I updated all what is possible - gnome, etc...But still no result.
It's impossible to know what happened without knowing what got removed. However, a great way to get your files out is using scp. Good examples for this can be found here.
Alternatively, if you've installed the Virtualbox Guest Additions you can use a USB drive to retrieve your files. There's a pretty good tutorial on how to get your USB drive working on VBox here.
If you want my best guess as to what's wrong, something in your /var relating to your GUI got removed, as from what I understand you can still boot to your command line. My suggestion would be to get what you need off the machine using the above tools and get a fresh install.
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Closed 8 years ago.
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I have prepared partition, Mint iso and Windows 7. Can I easily install Mint directly from Windows without using pen drive or CD?
You should not do that. You create another partition and put a Linux live image there. Then you boot this system and install Linux Mint like you would from CD or USB
You shouldn't have many issues.
During the install on Mint, you will be allowed to select install options. If Mint detects a preexisting OS, it defaults to "install along side OS xxx."
I believe from there you can select your partition or create new ones.
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Closed 7 years ago.
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I am dual booting on my Lenovo t420 windows and Ubuntu. I am using both Os and find it annoying to switch back and forth...I was wondering if I could have Ubuntu on my Virtual Box and copy my information from the Dual Boot to the windows partition. I have lots of stuff on my Linux, mainly because of eclipse and android stuff.
look at this link:
https://forums.virtualbox.org/viewtopic.php?f=2&t=9323
it is possible that this may not work because when an OS is installed, it loads only the files to make it run on your specific machine. the simulated hardware in virtualbox might be too different that what it uses now.(I know this because I tried this with win xp)
If you're running Windows 7, you can use 'Windows Virtual PC', which is built in to Windows 7, to run a Linux OS as virtual machine. See http://answers.oreilly.com/topic/366-how-to-run-linux-under-windows-7s-windows-virtual-pc/ for more info.
I'm T420 with both Ubuntu(12.04 64bit) and Win7 too. Normally I can see Win7 partition be mount to Ubuntu and I can copy data from Ubuntu to Win7.
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Closed 5 years ago.
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Installed Mint on a brand new Lenovo Z585 Ideapad alongside the pre-installed Windows 8. Everything seemed to go fine, until the reboot, which simply dumped me at a Grub prompt.
I tried the usual ls investigations, but my Mint partition (/dev/sda9) returns an error along the lines of "invalid file name ''." - sorry I can't be more precise right now.
I've booted back into the LiveCD and run boot-repair, which generated the following summary - http://paste2.org/Owy3XNpH.
os-prober recognises my Windows installs (the real install and the recovery thinger), but no Mint.
As far as I can see, browsing the partition through the live cd, the install itself is fine, but I'm more than willing to be corrected. Can anyone help?
Adding the answer in case others have this problem.
Turns out that SecureBoot was in the Security section of the Bios, and not in the Boot section, where I was looking for it.
Disabling it and running boot-repair fixed the problem.
No boot loader is installed in the MBR of /dev/sda
http://wiredrevolution.com/system-administration/install-the-grub-boot-loader-to-the-mbr