Fedora :: Dual Booting - Grub2 To See F15 Or Be Installed Using Grub2?
Jul 11, 2011
I installed Fedora 15, which was my first real departure from Debian based Linux OSs. I absolutely love the new Gnome 3, and was able to configure F15 to work as I wanted it to. On rebooting I realized that there was no boot loader screen, that F15 just booted and didn't give me a choice as to which OS I wanted to use. Eventually I was able to configure grub to let me see the boot loader and added my old boot loader as a choice. This worked well, maybe not a perfect solution, but it worked. This weekend I installed LMDE (Linux Mint Debian Edition) to another HDD. LMDE uses grub2 and after the install F15 was not recognized.
Two questions: Is there a way for grub2 to see F15? or Can F15 be installed using grub2? I really don't mind re-installing from scratch.
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Aug 23, 2010
Is it possible to dual boot openSUSE & Ubuntu through GRUB 2? Apparently SUSE uses standard GRUB. I installed SUSE but only have Ubuntu options displayed on boot.
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Jun 13, 2010
The Problem, installing ubuntu over top of windows and vice versa causes the windows boot menu to forget about ubuntu.The Solution:1. Using bcdedit from within windows to edit the boot menuClick Start -> Type Cmd.exe run it in elevated mode (as an administrator) by right clicking it and selecting "Run As Administrator" Inside the console type bcdedit, notice that the ubuntu boot entry is still there, for example i use three o/s , windows 7 professional x64, windows 7 ultimate x64 and Kubuntu and it looks like this
Windows Boot Manager
--------------------
identifier {bootmgr}
[code].....
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Aug 7, 2010
I was dual booting on my netbook with Lucid and Windows XP, so the computer starts with the GRUB2 menu. I deleted the windows partition and now I only use Lucid on the netbook. I want to know how can I get the computer to simply boot into Ubuntu like a normal computer would do if it was not set up as a dual boot system?
How can I get the computer to go directly into the ONLY operating system rather than taking a detour through the GRUB menu?
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Jan 4, 2010
I'm having problems getting TC to load grub2 1.97b4. When I hit ESC from the TC boot prompt, I get "no bootable partitions found".
I also booted into Ubuntu Live cd, mounted my LVM dm-crypted volume and tried to reinstall grub2 to my nonencrypted /boot under /dev/sda3 and TC still wont boot. Then I set the boot flag on /dev/sda3 and it still won't boot.
These are the commands I used to install grub2 to my /boot partition. Atleast that's what I think it did.
update-grub
grub-install /dev/sda3
grub-install --recheck /dev/sda3
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Feb 8, 2010
9.10 uses GRUB2, so the instructions below are obsolete. Is there anyone here who could provide instructions for adding Geexbox into the GRUB2 menu? If you already have a Linux OS installed on your system, you might just want to add a GeeXboX entry to your existing bootloader. This allow you to install GeeXboX very easily. From GeeXboX CD, simply copy the GEEXBOX folder into your Linux / partition (we suppose it to be /dev/sda1 here).
Modify the /boot/grub/menu.lst file to add:
title GeeXboX
root (hd0,1)
kernel /GEEXBOX/boot/vmlinuz root=/dev/ram0 rw rdinit=linuxrc boot=UUID=$my_uuid lang=en keymap=qwerty splash ...
initrd /GEEXBOX/boot/initrd.gz
quiet
Just take are about two things:
- the field root (hd0,1) is to be adapted according to the rest of your GRUB's configuration.
- the $my_uuid value is the unique ID of your partition. Check within your GRUB config file, which value is set for other OS on the same partition or use ls -l /dev/disk/by-uuid/ to see which uuid matches your partition.
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Oct 12, 2009
Does grub2 support booting off of encrypted partitions? I'd like to have an encrypted linux system, but only have space for one partition or logical group in my mbr. Or can I include that one /boot partition in the lvm group.
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Feb 2, 2010
I'm trying to boot my Fedora 12 partition, but am failing miserably, when I try to boot Fedora 12 I get "ERROR: NOT AN ASSIGNMENT"
my 40_custom file is as follows:
Code:
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
[code]....
Note that I tried this using the entry that is currently commented out and I had the same result. Does anyone know what is wrong? The entry that is currently uncommented came directly from the grub entry created by fedora itself (before I installed ubuntu).
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Jan 24, 2011
I want to load grub2 from grub4dos.I want to load directly the grub2 core. I know how to load first 512 bytes from some patition by chainloader and load grub2, but what I need is to load directly grub2 core without passing by bootstriping code (first 512 bytes).So, my first boot manager is grub4dos, then I can load grub2 and later I load Ubuntu. But I think I have to edit --set-root
What I dont know is how.
In hdd 0,7 (sda8) I have Ubuntu 10.10 and /boot/grub/core.img is in sda8 (hd0.7)
I tried this way:
Code:
title grub2
find --set-root /boot/grub/core.img
kernel /boot/grub/core.img
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Nov 9, 2010
I recently downloaded grub2 source code for my F13 installation and it compiled and installed perfectly, but when I rebooted nothing had happened and grub was still version .97. Is there something I didn't do?
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Mar 7, 2010
i initilally installed ubuntu 9.10 then installed windows 7 ,then i recovered grub2 using livecd as told in the post [URL] i did "sudo update-grub" and got windows 7 menu entry but when i select that entry windows 7 does not load but the grub2 is reloaded again.
i cant boot to windows 7.
Windows 7 have 100 mb partition "System Reserved" the grub2 points to that partition but still windows 7 not loaded.
sudo fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x3c3a81f5
[Code]....
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May 17, 2010
I went through so many post but I haven't found the proper answer yet hope you have an Idea1. Grub2 saves only Linux OS as last selected no Windows OS2.It is possible to boot into a cdrom (drive)?
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May 4, 2010
Small issue with grub 2. I installed fedora on a usb drive and i'm trying to get it to boot from grub 2. I did update-grub and it found the kernel on /dev/sdd2 but for some reason it is trying to point the kernel file to /boot directory in grub but the kernel is on the usb drive and when i try to set it to look at the usb drive it says file not found.
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Oct 16, 2010
I have Win 7 in my hard drive (sda) and I installed Ubuntu 10.04 in other hard disk (a usb disk), but when I try to boot my pc from the usb disk (sdb), the grub shell is displayed. No menu is displayed. When I boot Windows 7 from sda, it runs correctly. The problem it's when i wanna boot Ubuntu. I ran bootscript on the live CD and this is what I've obtained:
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Windows is installed in the MBR of /dev/sda
=> Grub 2 is installed in the MBR of /dev/sdb and looks on the same drive in partition #1 for /boot/grub.
[Code].....
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Dec 5, 2010
So to make things short, here's my situation: I was having the "no module found" problem, because dell software kept on messing with the MBR So I restored the MBR using Windows recovery and deleted the dell software Re-installed ubuntu 10.10 off the liveCD ~Then I had problems getting GRUB2 boot menu to show at boot, but i fixed that~ Now I'm having the problem where whenever I try to boot into windows 7 through GRUB2 instead of booting windows I just get:
"bootmgr is missing"
Note: I can still boot into Ubunutu 10.10 just fine.
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Mar 19, 2011
efix is a usb bpu (booting processing unit) that can handle various OS. I'd like to have Grub2 pointing at it, list it and be able to start the booting process from there. My ubuntu 10.04 sees the device but apparently I can't configure the 40_custom file properly. I'm also using Burg as theme manager for grub2. Below you can find my system specs.
|Motherboard: ASUS P6T SE bios v:0805
|CPU: intel corei7 930 2.80 ghz|GPU: ASUS Nvidia 250 gts 1GB|
|Ram: 6GB ddr3 1333 corsair (running at 1066)
[Code].....
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May 2, 2010
I am dual-booting XP, and all has been fine for a while....until I upgraded Grub yesterday. This was due to the boot menu not updating properly, and I realised the system was still using the old grub. The update instructions I used advised putting grub2 on all partitions if you were not sure which one to go for.....I guess this has "upset" the chainloading process, as when I select XP from the menu, I just get a black screen with flashing white cursor, which doesn't seem to respond to anything except CNTRL+ALT+DELETE!
I can still access all Windows files from Linux, and can see that system files like boot.ini are sill there. Both systems have been backed up, but would prefer not reinstalling right now if possible.
Below I'll paste grub.cfg and fdisk -l; any suggestions gratefully received!
ps the computer is a Sony Viao laptop: Core Duo 1.6 GHz - 1 GB Ram - 80 GB HDD, running XP Media Centre and Ubuntu 10.04
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
[Code]....
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Jan 20, 2011
wanted to try out FreeBSD but I want to boot it from an ISO. I put my iso file on my first hd 3rd partition in /boot/iso/FreeBSD-8.1-RELEASE-amd64-dvd1.iso. But I can't seem find anything to boot freebsd this way. Is it possible and if so how. This is what I kinda got but its not working.
Code:
menuentry "FreeBSD1" {
insmod loopback
[code]...
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Mar 30, 2011
My working OS uses grub, but I've just installed Sabayon 5.5, which uses grub2, on hda10. I want to keep using grub until I've got time to RTFM on grub2, so I installed the Sabayon bootloader on hda10. I should be able to point grub at the partition and boot indirectly, as with Windows, but after following the grub 'info' page I get an error message. Can anyone point to the error in the following grub script:
title hda10 110330 Sabayon 5.5
rootnoverify (hd0,9)
makeactive
chainloader +1
[Code]...
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Jan 21, 2010
I was given an external USB drive which has Windows XP Pro on the first partition. I can mount and access the partition with no problem. When I run update-grub, it finds the XP partition and creates a menu entry for it. But when I select it from the Grub menu, I get an error that the device is not found.
Results of sudo fdisk -l
Code:
Disk /dev/sda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00086c27
[Code]....
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Apr 4, 2010
I have windows 7 in RAID 0 and installed Ubuntu 9.10 to another Sata drive. Ubuntu is working fine but if I try to boot windows in the Grub2 loader it goes do error and lets my to restart. I have finish the windows system recovery and setup repair several times and it won't find any problems. I can't get to windows loader.
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Windows is installed in the MBR of /dev/sdb
=> Grub 2 is installed in the MBR of /dev/mapper/pdc_chfbjcefbd and looks for
(UUID=c859191e-3279-4ecc-a569-4dfc8e1789b3)/boot/grub.
[code]...
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Jun 4, 2010
if it is possible to boot windows without the chainload option. I don't have xp on the first partition and I don't want to load xp bootloader on the first partition because it will overwrite grub2. All I want to do is boot xp directly from grub, is this not possible? Can't I just load the kernel like I do with linux? I've never had luck with getting grub2 to load xp, P.S. grub version is 1.97 from ubuntu 9.1 install
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Feb 14, 2011
Here's the idea -- be able to boot slackware 13.1 DVD from a USB stick, but without using anything like an initrd or loading the contents of the slackware install all into memory first. So the USB stick is behaving like a hard drive (but with one disadvantage, just don't take the usb stick out while you're using it!). It has the advantage of saving on memory though .
In the above thread I had this idea working ok but only with slackware 13 and earlier. In fact I still have the CF card with it on, and it works fine. Only snag is it won't work with the newer 13.1.
Right now, I'm trying to use qemu for the following (not what I wrote above!). The idea is to use qemu to install a minimum slackware 13.1 to the USB stick, set it up and then boot from the USB stick itself (so I'm using the USB stick as the storage medium as opposed to say a hard drive image file).
So let's say (this is what I'm doing) I boot slackware 13.1 (32 bit) and make two partitions;
Code:
I then do a minimal installation of slackware (just "A" and jed from "AP"). Lilo is not installed as later I'll be using GRUB2 to try to boot.
I'm using a slackware package, grub-1.97-beta4-i486-1.tgz for slackware 13.1/GRUB2.
I then boot off the slackware 13.1 DVD but at the boot screen I choose to boot from /dev/sda2 which is the linux install I created earlier. Success, it boots ok and I can get into the slackware 13.1 install on the USB disk (which is /dev/sda2).
I then label the ext3 partition by using e2label;
Code:
And also change /etc/fstab;
Code:
Now I need some sort of bootloader to put onto the USB stick so I don't need the DVD any more. To do this, I'm trying to use GRUB2.
But here's the problem!
When I install slackware onto the USB stick using qemu, that partition is /dev/sda2. It's the first usb/storage medium that slackware detects so it gets the name sdaX. (X=1, fat partition, X=2 EXT3 linux).
But here's the problem. Suppose I take the USB stick over to another PC with a hard drive already inside it. Slackware would see the hard drive installed in that PC as (say) /dev/sda1 and the USB stick would then become the second drive, so /dev/sdbX (X=1, fat partition, X=2 EXT3 linux).
If I specify a specific device (lets say /dev/sda2) then it won't work in another system because if I take the example above, another PC with a hard drive installed in it the USB stick becomes /dev/sdb2 and the GRUB2 boot program would be expecting /dev/sda2 which won't work. What I need to do is to somehow find the install, the root on the USB stick automatically without having to specify it manually.
So here's what I've tried with grub (First thing I did was to install grub with grub-install /dev/sda).
Code:
Snag is it dosen't work :-( I get this booting from the USB stick:
Code:
If I try this:
Code:
I get a very similar result ....
Code:
So what I'm wondering is .... if the "search" line in grub is doing the searching for the root GRUB2 needs to use to boot from - how can I tell the next line, "linux /boot/vmlinuz-huge-smp-2.6.33.4-smp root=...." where to boot from? I can't use /dev/sda2 or /dev/sdb2 because if I try the usb stick in a different PC the stick will be a different device name. Trying to use LABEL= or /dev/disk/by-label/USB/ also dosen't work .
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Mar 22, 2010
so after my upgrade to 10.04 I'm experiencing a puzzling problem with Grub2. It can load everything fine except for XP. I have XP on a separate partition, it is detecting fine and the grub.cfg file is created withou a problem when I the appropriate commands to update and upgrade grub. What happens is that I select Windows XP from the list and it goes to a black screen where a cursor in the top left corner blinks 3-5 times and then immediately kicks me back to the Grub menu. I can do this forever but the grub menu just gets reloaded every time. Any ideas?
Here is the windows portion of my Grub.cfg:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda2)" {
insmod ntfs
[code]...
Here is my boot.ini on the ntfs partion I am trying to boot into
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)WINDOW S
[code]...
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May 20, 2010
I'm dual-booting Ubuntu 10.4 (grub2) and Windows 7 (x64). Something stomped on my grub install on the windows boot sector (probably windows). I was getting errors like "Cannot find disk.." I updated my grub.cfg to what I thought should work and now I'm getting errors like "cannot find C/H/S values".
I've attached the RESULTS.txt. Its really a simple install, although I do have a RAID5 array; the RAID disks are just for data and hold no OS files. Both OS's are on /dev/sdd.
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May 28, 2010
I'm trying to make a sort of "toolkit" flash drive using grub2 but I am running into some problems. For some reason, every entry below gives me the error "you must load the kernel first" when I try to boot it. I have checked in the grub command line and it appears that grub sees my flash drive as the first drive when booting. This is what my grub.cfg looks like.
Code:
#Clonezilla v1.2.5-17
menuentry "Clonezilla 32"
{
set isofile="/boot/isos/clonezilla32.iso"
loopback loop $isofile
[Code]...
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Jul 2, 2010
My internal is sda windows = sda1 recovery = sda2 my external is sdb storage = sdb1 linux sdb2 GRUB is on sdb2's first sector. I tried coping it to grub.mbr on sda1 and added C:grub.mbr="ubuntu linux" all I get when selecting it is _ blinking and no booting. USB booting from BIOS works but I don't want family to have to mess with unplugging and replugging it when they want to boot to Windows. I also tried installing GRUB2 to MBR of sdb and copying same problem.
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Jul 18, 2010
My girlfriend upgraded from Karmic 9.10 to Lucid 10.04 when the upgrade became available. She did it from Update Manager as opposed to a clean install.
I have no idea what she did, or how the process works (I installed from a Live CD on my own computer) and ever since she did it, she hasn't been able to boot into Windows XP from GRUB2.
GRUB2 loads up fine, with Ubuntu and Windows listed. It'll boot into Ubuntu with no problems. Selecting Windows will just re-load GRUB2.
I've tried re-installing GRUB2 but that hasn't worked. My lack of imagination means I have no idea what to type in to Google, or the forum search.
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Oct 2, 2010
I have multiple distros that I chainload and I have installed a grub2 shell to the partition and can boot manual. I can not seem to get a grub.cfg file to work. Is there a directory that needs to be built for this file?
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Nov 15, 2010
After discovering that the "/boot" partition did not end on a cylinder boundary, I booted back up into the alternate cd, re-partitioned everything and re-installed.It worked fine after thatI can't seem to get Grub2 Installed.
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