Multiboot system was fine, suddenly get NTLDR missing-no Linux
I have Linux Mint 17.2 as my main system, with boot options for W7 and my earlier (17.0?) Mint.
Due to a key application being inadvertently removed from my system (previously posted about this), I have been booting between the two Mint versions for the last 24 hours. Suddenly on a routine restart I get NTLDR is missing. I haven't touched Windows recently, so not sure what has happened here. If I F10 into my boot menu & select the hard disk, I get the GRUB menu OK & can choose the OS. Any ideas please? Much obliged. |
what does grub-customizer say regarding your visible boot options if you run it and let it scan for entries ?
try using the customizer to re-install the multi-boot grub (Install to MBR). might want the ppa:- sudo add-apt-repository ppa:danielrichter2007/grub-customizer. |
[QUOTE=JackDinn;5684348]what does grub-customizer say regarding your visible boot options if you run it and let it scan for entries ?
try using the customizer to re-install the multi-boot grub (Install to MBR). Thanks Jack, I installed it and the options are those which I'd normally see: LM 17.2 then 2 Advanced options for LM 17.2, 2 x memtest, 2 x W7 , then LM17 plus 2 x advanced options for LM17 I put the default entry from "first in list" to LM 17.2 & saved to MBR. Hopefully that will do the trick. I'll reboot to see.... |
hmm, did you not get your windows boot option show up for grub ?
I have much the same as you (mint 18 kde, mint 18.1 cinnamon, windows 10 UEFI) but my grub-cutomizer picks up my windows uefi boot option along with the linux ones:- Quote:
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I have 2 W7 entries (I missed tabulating them properly in my list). This is what I have (attached pic).
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..what's this? Is it a command or a report? Anything I should do? Cheers |
no not meant for you to use per-say , its just the "edit" of my "Windows Boot Manager (on /dev/sda1)" but you might want to check yours looks about right (right click it and edit) of course yours will be different to mine.
I also see your windows is picked up, but im wondering why its listed twice (sda1 & sdb1) ? is it supposed to have 2 separate win7 installed ? Finally when you reboot you do get the windows boot option but you still get the ntldr error message when you choose windows ? (is that both of the windows choices it errors on?) |
I may have 2 x W7 installed or partly installed? I'm a bit woolly with boot stuff & this was all a while ago. I think I was concerned about deleting stuff as I wasn't sure what I wanted to lose & keep.
I haven't tried booting into Windows. Will try that in a mo. Your "Windows Boot Manager" is what? The Windows entries in your Grub, or some other application (on WIndows?) My LM 17 entry is Quote:
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that script is from my grub-customizer (after its finished its scan for boot entries right click on Windows Boot Manager (on /dev/sda1) entry and hit "edit". It shows the script for that entry).
yea it looks like your going to have a lot of fun with this one, try a google search for "grub ntldr missing" and you'll see what i mean. I was just hoping that if you could get the grub re-ordered and re-installed using the customizer you would be done but it looks like its gone over my head now. Its possibly to do with UEFI/EFI and/or windows needing to be installed on the first partition ONLY (else will loose ntldr) but other people have mentioned other things too. G luck. p.s. you might try and disable the windows option temporarily with the grub-customizer just to see if your linux works, as it should do. |
FWIW, Windows (at least the one I would use) booted fine.
Thanks for your help anyway, the boot customiser is a useful tool. I had spent some time searching, but all my results were about screwed up fresh installations & not being able to start Windows. Adding GRUB to the search helps. Cheers |
On searching GRUB NTLDR missing I came across a thread referring to Boot Info Script & I installed this to see if that would shed more light. Among the results were:
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=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of Code:
Partition Boot Start Sector End Sector # of Sectors Id System Code:
set root='hd0,gpt1' Code:
set root='hd0,msdos3' I had a search for gpt but couldn't get a definitive conclusion - is it a partition (number 1)? How do I tell which partition LM 17.2 boots from? If I reinstall GRUB2, will it just sort itself out? Cheers |
Hi, I can help with your wondering about the gpt1, its because im using UEFI boot for my win10.
Are you booting with UEFI, secure boot and/or legacy mode set on in your bios ? try tinkering with them settings if they are on try turning them off (on for legacy mode). |
Have you thought about using Boot Repair Disk? https://sourceforge.net/projects/boot-repair-cd/
It has got me out of a few pickles. |
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Have you thought about using Boot Repair Disk? https://sourceforge.net/projects/boot-repair-cd/ It has got me out of a few pickles. Hydrurga Quote:
I'll try your suggestion as that gives it more credibility than something I just came across on the web. Thank you. |
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you'll prob end up re-installing at least one OS (if not all of them) :( |
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