GRUB (GRand Unified Bootloader) is a multiboot bootloader from the GNU project. This tag is for questions relating to the legacy version of GRUB. Use the GRUB2 tag for questions dealing with GRUB2, a rewritten version.

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GRUB 1.99 CentOS 7

I just added CentOS 7 to an existing Ubuntu system (using GRUB 1.99). When I do a grub-mkconfig -o /boot/grub/grub.cfg, it detects the CentOS, and adds two entries (one looks like normal, one like ...
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75 views

Enabling Virtualization in a dual boot

I have a dual boot system with Ubuntu 12.04 and Windows 8 installed and a grub loader appears at startup for OS selection. I have installed vmware in my Windows partition, and it requires Intel ...
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316 views

How to make Android x86 bootable again?

I have an old ASUS eee PC 1000 with Lubuntu installed on the larger 30 GB disk (sdb) and Android x86 (stable release 1) on the smaller one (sda). Android x86 was installed first as has been ...
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1answer
131 views

Grub command not allowing to boot

Installed redhat linux server and windows 7 as dual boot. While adjusting storage space on my laptop on windows, I deleted redhat Linux partition. Now I rebooted my laptop. It's always showing GRUB ...
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237 views

Ubuntu 14.04 hangs at “[2.688088] Switched to clocksource tsc” (Intel Pentium 4)

I installed Ubuntu Server 14.04 on a Pentium 4 machine but booting the System hangs at: [2.688088] Switched to clocksource tsc I've tried all the Grub kernel bootoptions listed in this post: Linux ...
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0answers
47 views

Booting Linux from USB on a Mac

I'm only posting this question because it seems I've been trying to get this to work for the last 2 weeks and feel like im exhausting my options. I'm trying to build a persistent Linux system ...
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1answer
392 views

remove a boot option from Windows 7 menu (with grub)

I've an old eeepc that was shipped with Windows 7 starter installed, about a year ago (or more) I've installed a Debian/Linux using the Debian installer for Windows, everything went fine or so I ...
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0answers
248 views

Hide all kernel boot messages/logging when disabling splash screen Lubuntu 14.04.1

In Lubuntu 13.10 I was able to redirect the kernel messages/logging to another tty by adding the following to the Grub file in order to hide all kernel boot messages when disabling the splash screen ...
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1answer
362 views

Grub menu dosent appear. Boots directly to windows 8.1

I have been struggeling with a problem for a couple of hours. It feels like I have tried everything but nothing works. I installed linux mint 17 alongside with windows 8.1. I turned off fast boot and ...
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0answers
25 views

Windows entry in grub menu

I've installed encrypted windows/linux dual-boot. After installing aplication "startupmanager" from debian repo, the grub menu was modificated and windows entry dissappeared. As the windows is ...
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0answers
159 views

Running Windows installer from hard disk on Linux

I am trying to install Windows Server 2012 on a Hetzner dedicated server with Linux. Hetzner provides free KVM access whenever I need it, but unfortunately, their KVM's have a broken ISO mounting ...
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1answer
400 views

Windows 8.1 bootloader recovery

I have installed Linux Mint on notebook with Windows 8.1. I didn't install grub on /dev/sda and installed it on /dev/sda5. After booting to Windows I tried to add Linux in Windows bootmenu using ...
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0answers
36 views

Unable to do fresh Linux install from CD

I am using Windows 8 OS on my laptop and I had installed CentOS linux earlier. The BIOS is set for UEFI mode, thats why I had to switch it to legacy mode to support boot from CD. Anyways, I managed ...
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0answers
222 views

EasyBCD: can't boot into Windows after ticking neogrub boot loader in EasyBCD

I ticked neogrub bootloader in EasyBCD, thus the opiton "Windows 7" is disabled, as shown in the pic below. Then I reboot the system and now I can't enter windows 7, what can I do? thanks! ...
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1answer
199 views

how to modify Grub or mgr so that I can boot into windows 7 instead of Neogrub

I have installed windows7 in C drive. Now I use easyBCD to install ubuntu. I followed the steps according to an article which teaches how to install ubuntu-windows dual system(not in English, so I ...
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1answer
173 views

Grub Bypassed (Dual Boot, Dual Disk System)

My system has 2 disks. (/dev/sda and /dev/sdb) I am dual-booting Linux Mint 13 and Windows 7. Windows 7 is on /dev/sda1 Linux Mint's / is on /dev/sda6 Linux Mint's /boot is on /dev/sda5 I just ...
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177 views

Is it possible to delete files under Grub?

I want to install ubuntu using easyBCD and ubuntu ISO file after some configuration. I put the ISO image and initrd.lz and vmlinuz in C drive(where the windows7 is installed). Then I set the default ...
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1answer
95 views

Fedora 20 64 bit

Some thing hs happened to my fedora 20 64 bit installaion. I can boot grub and it goes though the start up and then displays the following mesage; Booting Fedora (3.15.8-200.fc20.x86_64) 20 ...
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0answers
202 views

Windows 7 hangs at “Starting Windows” screen when dual-booting with Ubuntu

I just installed Ubuntu 14.04 in a dual boot configuration. I have my original Windows 7 installation on my C: drive and the new Ubuntu 14.04 installation in a partition on my d: drive. GRUB shows ...
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1answer
6k views

Windows 7 not booting. grub bash shell appears

My Windows 7 x64 desktop PC stopped booting after I restarted it. This message appears: drive 0x80(LBA): C/H/S=1023/255/63, Sector Count/Size=16434495/512 Partition num: 0, active, Filesystem ...
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1answer
771 views

how to skip grub dual boot option menu entirely (without picking an OS to boot)

I'd like to skip the entire Grub 2 interface, where I have to decide booting Linux or Windows im running linux ubuntu lastest version (14.04.1 LTS) and windows 8.1 both 64 bit versions. I've ...
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1answer
1k views

Installing Debian 7.6.0 on Lenovo Y50

I was trying to install Debian on my new laptop: a Lenovo Y50 64bit running Windows 8. I got together with a friend and installed Debian in his computer first and had no problems. However I've tried ...
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6answers
11k views

No boot menu for Ubuntu 14.04 after dual boot installation

I assume, this is not a duplicate post. Please read my findings below before assuming so. I have gone through several questions over the Internet regarding people complaining that they are not ...
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0answers
31 views

Disk partition errors after size change

I increased the disk size of one of my VM when it was running. After a reboot, I get the following error message (at boot time): Mounting local filesystems...failed Now the VM is only accessible ...
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0answers
60 views

Best way to setup Fstab to avoid system boot issues

I have Linux system in which we force /dev/devname for running the system. proc /proc proc defaults 0 0 /dev/sda1 / ext3 ...
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2answers
256 views

Where i can find “/boot/vmlinuz” when “/boot” not exists

Hi all I'm new here and I want to ask where i can find vmlinuz without "/boot" directory... So system normally boots (Chrome OS) All working perefectly from pendrive But when I want dual boot I need ...
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1answer
31 views

Windows 8.1 reboot upon reaching the logo

I have a HDD which was used just for Windows 8.1. That is, the HDD had two partitions, system reserved and Windows. Now I got a SSD and switched back to Linux as my main OS, but yet I have the HDD ...
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1answer
434 views

cannot boot after adding grub menu entry

I have Fedora 20 and Windows 8 installed. I wanted to be able to dual-boot. But when I selected Windows Boot Manager in grub menu, i got: 'error file /EFI/Microsoft/Boot/bootmgfw.efi not found' I ...
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1answer
105 views

setting of grub for two linux distributions installed to two separate harddisk

(I am aware I may be duplicating post, but no sure where should I ask my quesiton) I installed a second harddisk to my laptop so that I can test on new linux distribution without trashing my working ...
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0answers
450 views

Can't boot Windows 8, can't boot from USB installer

I'm having all sorts of problems with my PC. It's custom-built so I didn't expect to have UEFI/Secure Boot compatibility issues but I think that's what's happening. I have a Windows 8 Pro ...
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0answers
122 views

Ubuntu goes black on startup

Whenever I start Ubuntu from the GRUB menu (below). and it finishes this (below). The screen goes black. This happened after I gained root access to my account and I needed to restart. After ...
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1answer
98 views

password md5 equivalent in grub2

In the old version of grub, we can prevent the user modifying the boot option in menu.lst with the following line: menu.lst password --md5 <password> In grub2, I tried to add the following ...
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0answers
53 views

how to enter into my win7 from rescue mode?

I have installed dual os :win7+debian7 on my pc.In the grub.cfg: menuentry "Windows 7 (loader) (on /dev/sda1)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd0,msdos1)' ...
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1answer
427 views

Booting a second, encrypted Debian installation from Ubuntu grub command line

I have a stable dual boot between Ubuntu 14.04 and Windows 8.1. I am installing a second flavor of Debian. It has three separate partitions: / is an encrypted luks volume located at (hd1,gpt9), /home ...
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1answer
83 views

grub rescue moved folder out of root

I made a really silly sudo mv /* /some_folder move command on my remote server vm ubuntu 12.04 that moved my boot folder to /home/.../somefolder/boot I can access this folder via a ...
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1answer
223 views

Transferring Linux OS from one drive to another with different partitions

First of all, some related questions: How to move from one drive to another that's a different size? What utility can move my Windows boot partition over to another hard drive? My situation is as ...
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1answer
324 views

How to dual boot Windows 8.1 and Ubuntu 13.04 with Windows Metro Boot Loader

I'm having a laptop with 4 Partitions, [1] 350 MB Windows System Reserverd [2] 40 GB for Windows Installation [3] 25 GB for Ubuntu Installation [4] 400 GB for Data Storage I have installed Windows ...
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2answers
288 views

How to properly specify boot extra entries for nixos

Nixos has a configuration option in the manual for specifying extra entries in the grub menu boot.loader.grub. extraEntries but I can't get it to work with the examples in the manual. The idea is to ...
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0answers
65 views

How do I get the grub menu to list both my Windows 7 installations?

I have the following disk configuration: Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors Units = sectors of 1 * 512 = 512 bytes ...
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1answer
932 views

Cannot boot on windows 8 after installing Scientific Linux 6.5

I had a standard toshiba latop (2014 model with EFI), which came pre-installeed with windows 8.1 and I tried to install Scientific Linux(SL) 6.5 in dual boot mode. Originally, I couldn't install it as ...
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0answers
330 views

Is 3200x1800 resolution possible in Hyper-V?

I've got a Lenovo Yoga 2 Pro (Windows 8.1), which has a screen resolution of 3200x1800. I'm trying to run Ubuntu 14.04 in Hyper-V at full screen on it. I've tried the steps listed here, but I can only ...
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1answer
299 views

Grub Rescue in Windows8 -Ubuntu Dual Boot

I deleted 2 partitions on my hard disk and now I am unable to boot my pc. I searched and found that it is possible to boot without a CD, but the method is not working for me because I can't find the ...
5
votes
1answer
844 views

Stuck on GRUB command prompt after regular kernel update

I am running Debian Wheezy. Update Manager suggest to install kernel update. After update, I reboot system but instead of listing all the kernels (bootloader), it gave me a GRUB command prompt: ...
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3answers
19k views

Kali Linux and Bootloader problems

At first I was using Windows 8.1... I downloaded Kali and put it on flash memory. The options got me to either: -Browse live -Install I browsed it live a little then went to installation. Grub ...
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1answer
34 views

grub having problems with Windows7 booting

I installed Windows 7 and Ubuntu on my laptop. It was working properly until yesterday. I went to do some work after I switched on my laptop and selected Windows, but when I came back my laptop's ...
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0answers
27 views

Can't boot into windows or CD

This is my third reinstall of Debian, this time because I wanted to update from wheezy to Jessie, but it wouldn't run anymore so I switched back to windows and deleted the Debian partition and ...
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1answer
52 views

Multiple Boot Manager [closed]

My computer dual boots with Windows 8 and Ubuntu on separate partitions. I am planning to install Mac OS X on another partition, but I need a better way to manage the boot options if I add more boot ...
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1answer
220 views

Boot Loader for windows 7

I asked I have Windows 7 and opensuse 13.1 and Windows boot loader is replaced by grub 2. Now I want to format opensuse how can i restore my Windows boot loader over grub 2. How can I format ...
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1answer
210 views

Can't boot from USB

A few days ago, I installed Arch Linux alongside Windows 8 on a new Dell laptop. I did so by booting from a USB drive, and there were no problems with the install. I'm now trying to install CrunchBang ...
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1answer
107 views

Windows 8 boot menu entries of ubuntu on ESP

So, I have a hp pavilion with Windows 8 pre-installed OS on it. I installed Ubuntu 14.04 in UEFI mode with secure boot disabled and then reloaded GRUB through Windows so that every time I boot I see ...