Missing operation system linux

missing operating system

Привет! Подскажите пожалуйста.

Есть два винта
/sda — win xp(1), win 7(2)
/sdb — debian 9(3)

Устанавливались в таком же порядке как написано выше, grub отлично работал и видел все системы.

После манипуляций с загрузчиком вендны. Вместо grub появляется — missing operating system

Подмонтировав /sdb сделал grub-install на него, теперь при загрузке на черном экране приглашение

Подскажите как восстановить grub со всеми системами?

mandala Урра!) Получилось) Ты гений! Респектище!

Все команды выполнились отлично. Все восстановилось) Спасибо! Так быстро помог) Я провозился всю ночь и половину дня.

зы а как так получилось что из-под венды убился загрузчик Линукса тем более что он на другом винте? В диспетчере дисков венды, линукс диски просто видны как тома без каких либо обозначений вообще. Венда же не должна была даже их увидеть.

Я рад что починилось.

На счет винды не знаю, у меня один раз было что по ошибке вставил не подписанный еще лазерный диск и меня не насторожило приглашение, лупанул по клавише и пошел делать чай. Пришел, приглашение винды на выбор диска для инстайла (самосборный образ хр сильно переделанный, без лишних вопросов), я ребутаюсь, загрузчика нет — хотя операций с дисками я не делал, точно.

Возможно у тебя был запуск в каком-нибудь безопасном режиме или после крушения и оно решило починиться без спроса и натворило дел.

Так что фиг его знает, поставь еще один груб в MBR на чистую флешку из под рабочей системы только одну команду:

Не live-флешка, а отдельная — это важно, иначе лайф запорется и будет пускаться только на одном компе в единственной конфигурации (нельзя трогать диски, вставлять лишнии флешки и т.п.). На ней можно хранить бекапы, например, и грузиться в рабочую систему на /dev/sdb.

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Thread: Missing operating system

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Missing operating system

I have a 3-boot PC with Windows XP, Windows 7 and Ubuntu 12.04, all on different partitions on the same disk. Boot loader is grub for Linux/XP, and Windows XP has an MS boot loader for Windows XP/7. My XP partition had disk problems for some time now, but didn’t bother with it, since I didn’t use it much. My PC worked without any problems booting or otherwise. After missing for 1 week for business, I came back and found Windows 7 partrition crashed. Had to reformat and reinstall. After reinstall I can boot into Windows 7 fine. However cannot boot into Linux any more

Used the Ubuntu live CD to mount my installation and check the partition table. Using fdisk I toggled the boot flag on the Linux /boot and reboot. I got from the BIOS «Missing Operating System». Verified partition table through fdisk, looks fine. Reconfigured grub, same problem. Even copied all files from /boot to a backup directory, to check for an fs problem (/boot is in its own partition). No problem.

I am now using the Ububtu Live CD, but I cannot keep using it. Each time I loose settings, bookmarks etc. Ran out of ideas. Can you suggest what to try next?

Last edited by nibal; November 18th, 2013 at 05:07 PM . Reason: Mark it Solved

Re: Missing operating system

When you re-installed Windows7 it messed up the MBR for Ubuntu. Its normal. You will have to re-install GRUB. READ HERE, for a how to.

If you still encounter any problems. post about them starting with the output of:

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Arch Linux

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#1 2012-07-11 16:53:20

[solved: PEBKAC] syslinux woes: «Missing operating system»

In light of http://mailman.archlinux.org/pipermail/ … 23211.html I decided to try syslinux, but couldn’t get it to work. I think I followed the wiki (i.e. the /boot partition is marked active etc.) but still got «Missing operating system» error and had to use a liveCD.
If anyone is using syslinux for their bootloader, can you pleas post the configs or give me a hint what could have gone wrong?

Last edited by karol (2012-07-13 22:25:03)

#2 2012-07-11 16:56:56

Re: [solved: PEBKAC] syslinux woes: «Missing operating system»

crap. now I have to try and understand Grub2. I did install syslinux on my wife’s machine, so maybe I’ll move to that as well.

There’s no such thing as a stupid question, but there sure are a lot of inquisitive idiots !

#3 2012-07-11 17:01:32

Re: [solved: PEBKAC] syslinux woes: «Missing operating system»

I switched to it ages ago on impulse, I saw that email come through earlier and was quite suprised actually! Almost as suprised as seeing karol posting a help wanted thread in newbie corner!

Anyway, maybe post your syslinux.cfg?
Also, did you take a look here?

Last edited by Psykorgasm (2012-07-11 17:01:48)

#4 2012-07-11 17:05:30

Re: [solved: PEBKAC] syslinux woes: «Missing operating system»

I used Jason Wryan’s post to get me sorted (and I’ll add a thanks to him from me, for the simple guide).
http://jasonwryan.github.com/blog/2012/07/09/syslinux/

«. one cannot be angry when one looks at a penguin.» — John Ruskin
«Life in general is a bit shit, and so too is the internet. And that’s all there is.» — scepticisle

#5 2012-07-11 17:08:04

Re: [solved: PEBKAC] syslinux woes: «Missing operating system»

I use syslinux (or more precisely the extlinux that boot from an ext <2,3,4>partition) successfully. Hereafter I briefly post what have to be done. If it still does not work. Repost posting exactly what you have tried.

1) create a directoty /boot/syslinux, containing syslinux.cfg and possibly modules that you will refer in this file (notably menu.c32 and chain.c32). You can put symlinks on the condition that the symlinks point to file in the same partition.
small edit: pay attention of 2) if you use symlinks. the / of the pointed file is the root of the partition where syslinux it. It does not correspond to the way you see it in the system if this partition is not mounted in /. See 2).

2) Place syslinux.cfg in this directoty. The root of the file mentionned are relative to the root of the partition containing the /boot/syslinux directory. You can also use relative paths that are relative to the directory /boot/syslinux (so if you have a /boot partition, the linux kernel will be referenced as /vmlinuz-linux, if /boot is on the same partition as / then /boot/vmlinuz-linux). I put here my config as an example: http://pastebin.com/zNunwupx

3) Make the partition containing /boot/syslinux bootable.

4) Put an mbr on the hard disk to be booted:

Replace /dev/sda by your hard disk. If you use gpt partition, you may have to use /usr/lib/syslinux/gptmbr.bin

Last edited by olive (2012-07-11 19:18:42)

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Linux Mint Forums

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»Missing Operating System» when booting[SOLVED]

»Missing Operating System» when booting[SOLVED]

Post by Babylon1234 » Mon Mar 03, 2014 12:01 pm

Re: »Missing Operating System» when booting

Post by karlchen » Mon Mar 03, 2014 12:51 pm

Please, note that your post has been split off the ancient thread from August 2012. Reviving that old thread which has been dead for 1.5 years now does not really make sense, just because you happen to get the same error message as the starter of the old thread »Missing Operating System» when installing from USB. . That thread by the way ended without any kind of conclusive resolution. It was simply discontinued, because the thread starter just replied once in the whole thread and then got lost.

Please, explain a bit more in detail about the system environment in which the »Missing Operating System» is displayed when you try to boot:

• You are using a dual boot system, correct?
• You used to dual boot Windows 7 and Mint 13, correct?
• About the Linux Mint 13 installation: Is this a normal installation which has got its own dedicated disk partition? Or has this Mint 13 installation been done by running Mint4win?
• About the recreated Windows 7 disk partition: Windows 7 can be booted normally now? Or can’t you boot either of the 2 operating systems?
• Which boot manager do you see when booting the machine? The Windows 7 boot manager or the Linux Mint Grub boot manager?
• Could you please post a GParted screenshot which illustrates the current disk layout. Might be helpful.

Kind regards,
Karl

Re: »Missing Operating System» when booting

Post by jahid » Mon Mar 03, 2014 1:27 pm

Re: »Missing Operating System» when booting

Post by Babylon1234 » Mon Mar 03, 2014 2:26 pm

Hello Karl,
thanks for the reply.

You are using a dual boot system, correct?
Just before this happened, I had one partition with Mint 13 (Mate version newly installed) and created a new NTFS partition to install Windows 7 (Windows is installed on /dev/sda2 and Mint on /dev/sda1) for a dual boot.

You used to dual boot Windows 7 and Mint 13, correct?
Yes, I used to have three partitions (Mint13/Ubuntu12.04/Windows7) running on this same HDD (and computer), all running ok — I would turn on the computer and would have the three choices of OS to boot from. I didn’t use Testdisk to create partitions by that time, I used Gparted from the Mint OS on the same HDD. I started using Testdisk when after atempting to install a second partition of Windows 7, the Mint partition went missing; but that’s another story.

About the Linux Mint 13 installation: Is this a normal installation which has got its own dedicated disk partition? Or has this Mint 13 installation been done by running Mint4win?
I run the installation normally from the LiveCD. I had already a ext4 partition on the HDD for that purpose.

About the recreated Windows 7 disk partition: Windows 7 can be booted normally now? Or can’t you boot either of the 2 operating systems?
I suspect that if I run Testdisk(Gparted) LiveCD and undo the Boot flag, Windows 7 will boot, but will not recognise the Mint13 partition.

Which boot manager do you see when booting the machine? The Windows 7 boot manager or the Linux Mint Grub boot manager?
No boot manager; only the all black screen with the message: «Missing operating system_»

Could you please post a GParted screenshot which illustrates the current disk layout. Might be helpful.
I can’t find that function from the LiveCD.

Has this problem something to do with the Master Boot Record?

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Live Disk with Persistance: Missing Operating System

I will try to narrow down my questions because I realize this topic is super broad.

I’m trying to create a Linux bootable USB disk with persistence for the most recent version of Lubuntu (14.10). I’ve done this many times in the past. To my recollection, it’s been finicky at best, but I’ve always managed to get it to work.

Creating a bootable disk seems simple enough. I used Universal USB Installer, Linux Live USB Creator, and UNetBootin on Windows and used UNetBootin and the standard Ubuntu Disk Creator on Linux. Despite using a multitude of tools, when I boot to the USB, I get the message:

I can confirm this on multiple computers that I know have a BIOS properly configured to read from the USB. Like I said, I’ve done this before, so I mildly know what I’m doing.

So this experience creates a lot of questions for me:

What am I doing wrong?

I’m trying to write to a 4GB SanDisk Cruzer which, albeit is

1 year old, should work fine. The disk has been formatted by the respective programs and I also partitioned the USB using a disk utility.

What should I try next?

Are there ways to check the integrity of a bootable USB? Can it be repaired so I don’t have to go through the process over again?

Are there boot flags that should be checked? Can I get more verbose output as to why the USB won’t boot?

Any suggestions on this topic would be greatly appreciated.

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