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dual boot Dell laptop

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duncan webster14/01/2021 19:18:26
3035 forum posts
36 photos

I have a Dell Inspiron 15 5000 series laptop. Some time ago I had it set it up so that when it is switched on I got an option to boot in W10 or Linux. Worked fine for a long time, but after the last W10 update the option is gone. I've searched the bios and done a lot of googling but cannot find how to restore this feature. Anyone got any idea?

I can et into Linux by changing the bios on startup, but that's a pain in the proverbial.

Grindstone Cowboy14/01/2021 19:30:56
488 forum posts
44 photos

I use EasyBCD by Neosmart, it provides a simple way of messing about with two (or more) operating systems. You should be able to get it to work with multiple existing installations, although things are simpler if you have it first installed with one OS and then add more.

Their forums are pretty good for help.


Clive Brown 114/01/2021 19:44:43
611 forum posts
23 photos

Is this any help? It's for 2 versions of windows but it might apply to Linux.


Frances IoM14/01/2021 19:47:19
994 forum posts
27 photos
Standard Operating procedure for Windoze - there are several recovery CDs available that can restore the information destroyed by windoze to re-instate dual boots. Often you can see if the Linux partition is undamaged by using a run-from-DVD Linux system - often the DVDs supplied with various Linux magazines have a recovery method but you should be able to find ISOs of these on line and write to a DVD or memory stick as appropriate

Edited By Frances IoM on 14/01/2021 19:49:08

Kiwi Bloke14/01/2021 19:56:14
508 forum posts
1 photos

As usual, Windoze arrogantly assumes it's the most important OS... Linux's bootloader will have been corrupted - or worse. There are many, many tutorials on how to restore Grub (the bootloader). Search around for one that looks most user-friendly. Try this:

It might be worth reminding folk who want to set up a dual-boot Linux/Windoze system that Linux should be installed after Windoze, so that the Grub bootloader is installed. If done 'tother way round, Windoze's bootloader just ignores Linux. It is possible to rescue such a situation, by messing around with Grub, but it's obviously more convenient to avoid that, if possible.

Edited By Kiwi Bloke on 14/01/2021 20:02:52

John Alexander Stewart14/01/2021 20:13:03
794 forum posts
52 photos

Assuming both are on the same physical disc. Boot in Linux.

Open a terminal window. type:

sudo update-grub

should do it. It should find the Windows partition, and put it in the GRUB boot sequence. This is the "boot loader" that runs when the system boots. Linux will find Windows, Windows will not find Linux. Of course.


If you have differing "boot bios" UEFI settings, tell me. I had to do this a little while ago - my Windows disc was installed in "DOS" mode, my Linux in UEFI, and I had to (simply) re-do the Windows one to be seen as UEFI. I'll see if I can find my notes. I had 2 discs; maybe if you have only 1 this might not be a problem. (I'm NOT an expert here!)

duncan webster14/01/2021 20:30:28
3035 forum posts
36 photos

Stranger and stranger, at least to me! I took W10 off the boot sequence so that it would fire up in Linux, or so I thought, but it then came up with the original screen, from which I can boot Linux or W10.

What I need to work out now is how to get W10 to the top of this list so that when windoze is doing its interminable 'you must resart your computer' updates I don't have to sit there all the time.

Thanks for the replies, where would we be without this wealth of knowledge

SillyOldDuffer14/01/2021 21:20:30
6861 forum posts
1538 photos
Posted by duncan webster on 14/01/2021 20:30:28:


What I need to work out now is how to get W10 to the top of this list so that when windoze is doing its interminable 'you must resart your computer' updates I don't have to sit there all the time.


Grub can alter the boot order. Boot the system and note where in the list of operating systems Windows is. Usually linux is first, windows is second, and memcheck is at the end.

In linux, edit the grub config file with:

sudo nano /etc/default/grub

Find the line


0 means 'boot from the first item in the list, so if Windows is second then


will start Windows by default rather than linux,

Any of the listed o/s be made default by changing GRUB_DEFAULT to the appropriate index number.

Saving /etc/default/grub doesn't activate the change. To do that run sudo update-grub as described by John Alexander.



Edited By SillyOldDuffer on 14/01/2021 21:21:24

duncan webster16/01/2021 14:14:26
3035 forum posts
36 photos

Thanks to SOD and JAS I think I've sorted it (don't let the laptop hear this, it will find another way to bite me!)

Russell Eberhardt17/01/2021 09:47:17
2622 forum posts
85 photos
Posted by duncan webster on 16/01/2021 14:14:26:

Thanks to SOD and JAS I think I've sorted it (don't let the laptop hear this, it will find another way to bite me!)

laugh They often do!


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