Ubuntu Installation :: Grub2 Overwrite Grub On Upgrade From 8.04 To 10.4?
Jun 21, 2010
I have been running a dual boot XP and Ubuntu 8.04 on two separate hard drives for a while now without any problems. I used the method posted http://ubuntuforums.org/showthread.p...light=dualboot. I will be upgrading to 10.4 soon (probably after the re-spin in July) and was wondering if I will have problems after upgrading dual booting.
I do not know if while upgrading Grub remains or if Grub2 tries to overwrite. I have read that Grub2 will try to install onto all partitions and hard drives in a fresh install but do not know about upgrading. If it does try I think I need to put it in hda,1 which is the primary drive where Ubuntu is located.
This is not something I have been able to find the answer to with google. I also have Kubuntu on the system which I can change with session manager and am not sure what will happen to that once I upgrade Ubuntu.
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May 21, 2011
I moved from 8.04.2 to 10.04.2 and tried to upgrade from GRUB Legacy to Grub2. I must have made a mis-step somewhere in the process as on boot it now tells me
Code:
GRUB Loading stage1.5.
GRUB Loading,
Error 15
_
Is there a nuke from orbit, no finesse way of just ripping all the existing GRUB mess out and installing GRUB2 from Boot disk? for instance should I be just be able to boot with a LIVE CD mount the primary disk of this machine and enter the below in a terminal without messing up any further?
Code:
sudo grub-install --root-directory=/media/PRIMARY_DISK /dev/sda
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Jul 24, 2010
yestoday,after I upgrade,unable to boot windows xp. if I use grub ,windows xp can boot up.but now I want to use grub2, boot info script's results.txt is at below.
Boot Info Script 0.55 dated February 15th, 2010
Boot Info Summary: => Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #6 for /boot/grub.
sda1:
File system: vfat
Boot sector type: Fat16
Boot sector info: No errors found in the Boot Parameter Block.
[Code]....
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Mar 17, 2011
I tried to install linux on hard disk and it installed without any problem. However, when i boot i directly get the windows boot loader screen and no grub screen. I reinstalled linux. I tried to fix grub, but still no grub screen.
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Mar 19, 2010
I have a Debian Lenny box with two hard drives in it (no dual boot; /home and /var are on the second drive). This machine was working fine until earlier this week when I ran an upgrade and restarted it. I think during this upgrade Grub got upgraded to Grub2, and now when I try to reboot I just get this:
Code:
GRUB Read Error
Hitting Enter yields Operating System Not found. This is it, I can't get into the grub screen to enter the boot command or anything. I booted the machine into the rescue environment on the Install CD, and was able to mount all the file systems and chroot in. I tried reinstalling grub2, but this did not help. I ran fsck on my /boot file system, but it appears fine. The boot partition is also marked with a bootable flag in fdisk. I did try to downgrade back to grub1.5 which, while it didn't given an error did hang shortly after it loaded.
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May 2, 2010
I've installed grub2 on 10.04, when I restarted I selected that option in the menu that seems to go for testing the chainloader. The system seemed to start ok, so I ran upgrade-from-grub-legacy. Now it's asking me for "GRUB install devices" and listing my hard drive (/dev/sda) and the 5 partitions on it as possible options. Which should I choose? I have Linux and Windoze running on this desktop,
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Jan 21, 2010
In general I love Ubuntu Karmic, and think it's the most polished Gnome distro out there, but since installing it on my laptop alongside Fedora I haven't been able to boot into the latter.
I know that I could fix it by adding an entry into the 40_custom file, but wonder if there's a simpler fix.
The command
Quote:
sudo update-grub
actually finds and lists the Fedora Constantine kernel, but it still doesn't appear in the bootloader menu. Before I delve around and break something, does this mean that there's a line commented out in one of the config files?
I'm not going to slag off Grub 2 because I can see that it has clear benefits, especially for power users, and I don't mind change if it brings clear benefits. So long, /boot/grub/menu.lst.
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Feb 7, 2010
I upgraded yesterday ubuntu 9.10 to 2.6.31-19 kernel. After reboot, I get stack to GRUB black screen. No possibilities.
My set-up is triple boot 9.04, 9.10 and winxp. The MBR is handled by win boot.ini with no problems. Each ubuntu partition has a grub installed in it.
9.04 is on sda5 with grub installed on it ext3
9.10 is on sda9 with grub2 installed on it ext4
I am able to boot into sda9, via grub of sda5 obviously passing the correct kernel parameters and UUID.
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Feb 7, 2010
I' ve tried to do a iso multiboot 1gb pen stick with grub2 bootloader. I 've already readed all is it possible finding on the WWW but there are some problems i don't understand how to solve.
This is my sitution:
-koala 32bit installed on my pc with grub2 bootloader
-1gb pendrive parted as follow:
In the first fat16 partition there is installed grub2. On the second ext2 one there are iso files.
This is what i've do to install grub2 on my pen:
So i've created /boot/grub/grub.cfg file with the follow lines:
When i reboot by the pen stick, grub load up to it says me:
It seems not reding /boot/grub/grub.cfg
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Jun 8, 2010
So I have an MBR that is Grub legacy,(from HardyHeron) and I cannot edit/upgrade this MBR. (I won't get into the reasons, other than I will mention SafeBoot).
I have a new encrypted LucidLynx Linux installation on partition 4 and an unencrypted /boot partition on partition #3.
When I boot up, I get the "Error 15" Grub error, which is expected as Grub legacy is looking for /boot/grub/stage2 or something like that and /boot/grub/stage2 does not exist in my GRUB2 installation in /boot/grub.
I thought if I could make a link from the GRUB2 binary of interest to /boot/grub/stage2, then maybe the GRUB legacy would be tricked into loading the GRUB2 binary.
what is the binary of interest in the GRUB2 installation that is the main binary?
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Mar 11, 2011
I installed yesterday the 11.4 openSUSE to my desktop pC (in my 160hdd that previous had WinVista).The bad thing was that I used grub from opensuse to be installed to MBR.openSUSE uses Grub 1.5 and I want grub2.Now I cannot see Ubuntu when grub legacy loads.I will post the results from
Code:
fdisk -l
later today (cause i am not in my pc)
[code]....
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May 7, 2010
I upgraded from 9.10 to 10.04 (no fresh install, an upgrade). During the upgrade, the installer asked me for the harddisks and partitions to include. I gave him the following ones:
Harddisk 1
1. Windows XP
2. Windows 2000
Harddisk 2
3. Ubuntu 10.04
After the installation was complete, I could only start Ubuntu. Both Windows versions just showed a flashing cursor at the left upper top screen. No HDD activity! How can I get WinXP and Win2000 selectable within grub2?
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Jul 8, 2010
I took the distribution upgrade from the update manager and can't boot now. Boot into a Live CD (ver. 9.10 - does that matter?), and go through the following steps.
ubuntu@ubuntu:~$ sudo fdisk -l
Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite)
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000ad56f
[Code]...
Anyone have an idea here? I have searched a lot and have only found a few references to this issue. Does the invalid flag message relate here? The partition is flagged as 'boot'.
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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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Jan 28, 2011
Last night I attempted to upgrade my Ubuntu 10.10 (amd64) machine. After reboot (it installed a new kernel), the grub menu only had the memtest. Booted into a livecd and it seems that I was missing most of the files in /etc/grub.d/. Reinstalled grub-common and grub-pc didn't seem to restore the files. I ended up having to download the dpkg, expand it and copy the files manually so I could get the box generate grub.conf and boot up. I think grub may have been broken before the upgrade but exhibited the problem when it upgraded the kernel and reran upgrade-grub but I can't seem to figure out why reinstalling grub doesn't add the files back.
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Mar 31, 2011
I installed UEFI Ubuntu 10.10. Its grub2 version is 1.98. I want to upgrade it to 1.99.I try to use 'grub-install' and 'grub-setup' commands but I faild to upgrade the grub2.
And, when I add my ram to 4G, the system hangs and displays 'Not syncing: VFS: Unable to mount root fs on unknow-block(1,0)'
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Apr 30, 2011
GRUB2 / RAID 10.10 to 11.04 Upgrade Fail.....
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Jan 6, 2010
I am having trouble upgrading from old grub to grub-pc. I have a clean install of 9.10 on a system with a new ASUS motherboard with Nvidia RAID configured as RAID 0.Although I read the page on SATA pseudo-RAID, this doesn't seem to apply, as both 9.10 and Windows XP installed cleanly without any additional drivers required.I did notice that contrary to the documentation, 9.10 installed with grub v0.97, not the new one as claimed. It is working fine, but just to be ornery, I'm trying to upgrade to the new one, and this is where I ran into trouble.Whenever I try to run grub-upgrade, I get an error from grub-probe that 'no mapping exists for' my raid partition. Apparently grub-probe can deal with the device, but not with the fs_uuid, as follows:
twescott@latitude:~$ sudo grub-probe -t device /boot/grub
/dev/mapper/nvidia_fcacbeib5
twescott@latitude:~$ sudo grub-probe -t fs_uuid /boot/grub
grub-probe: error: no mapping exists for `nvidia_fcacbeib5'
The system seems to be recognizing the RAID with no problems, as in:
twescott@latitude:~$ sudo blkid
/dev/mapper/nvidia_fcacbeib1: UUID="28D83EB2D83E7DDE" TYPE="ntfs"
/dev/mapper/nvidia_fcacbeib2: UUID="4344165e-07c3-4da6-b640-da9bf964a74e" TYPE="swap"
/dev/sda: TYPE="nvidia_raid_member"
[code]....
I'm thinking the problem may be in my grub device.map file, which only lists the SATA raw device aliases, but I may be completely wrong:
twescott@latitude:~$ cat /boot/grub/device.map
(hd0) /dev/sda
(hd1) /dev/sdb
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Sep 23, 2010
I mucked things up a bit--
1) I had only windows on my drive.
2) Using 10.04 on USB, I made a 10gb ext3 partition and a 1gb swap area and installed 10.04. No problems at all using grub2, and the GUI is nice for dummies like me.
3) I got antsy so I made an 8gb partition and installed 8.04 on it. It automatically installed grub (the old grub).
Now when I boot my machine the Old Grub loads, not Grub2. I can select 8.04, 10.04, or XP no problem. When I select 10.04 and use the GUI I can see 10.04, 8.04, and XP, but things are in a different order (clearly the grub2 order).
Questions:
1) How can I get grub2 to take over booting? (I like the GUI)
2) I'd like to install puppy linux too, but I'm afraid of really screwing things up. Can someone recommend a safe way of installing it (besides just running from a USB- I've had mixed luck using USB OS's over long timeframes).
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Jan 5, 2011
I've recently left Windows behind for good and have come to Linux (Ubuntu.) However, I've run into problems after trying to dual boot windows 7 and ubuntu. When I restarted my computer, I got a black screen with white text reading "Minimal BASH-like line editing is supported". I have the Ubuntu live cd and was able to try Ubuntu without having to install it, but after I put in a flash drive with Windows 7 on it, the Ubuntu CD has stopped working entirely.
The weird thing is, the computer that I installed Ubuntu on, already had Ubuntu and Windows 7 on it. And every OS was booting successfully. The reason I deleted the Ubuntu that was already on the computer, is because there were many different versions. I wanted to do a clean sweep and only have Ubuntu and Windows 7 installed on the computer. I know that if you try to dual boot Windows 7 and Ubuntu, Windows will overwrite the GRUB file, making it unable to dual boot.
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Apr 9, 2011
I've currently got a dual-boot setup with Vista and 10.10 (using grub2 on MBR).I'm about to install Windows 7 and would like for a change to use the Windows bootloader. I currently have a separate /boot partition and believe I can install grub2 there so that I can chainload it using EasyBCD.
I'd like to do this from my running system as I don't have a spare USB drive right now. confirm the command I should use baring in mind the separate /boot.If I have to wait and do it from the Live CD - is the command to use any different? FYI here is my current layout:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/vg_root-root
37735960 15719388 20099644 44% /
none 1023876 316 1023560 1% /dev
[code]....
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Jun 9, 2011
I have recently installed the Maverick backport kernel (2.6.35 - from the lucid-updates/main repo) and while I was at it I also manually (through synaptic) got rid of some old kernels. I made sure that I kept the current Lucid kernel though (that was working fine). All seemed well (although I didn't actually check - just no errors) so I rebooted.On reboot I have lost all my Ubuntu kernel options!
I rebooted with a live cd, mounted, etc and ran
Code:
sudo update-grub
but it doesn't seem to find any kernels!
Code:
grub-install --recheck --root-directory=/media/mnt /dev/sda
Checked /boot to see if the kernels are there:
Code:
jed@lightning:/boot$ ls
abi-2.6.32-31-generic memtest86+.bin
abi-2.6.32-32-generic System.map-2.6.32-31-generic
[code]....
Even reinstalled burg (used to use it but it got broken by a kernel update long ago and never bothered to fix it as I only use Linux these days anyway)Funny thing is that BURG finds the kernels and reports no problem, but then drops to the grub-error prompt on boot.
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Apr 30, 2010
I tend to update stuff slower than most - I'm still using Hardy and I probably won't upgrade to Lucid until June-ish. I wanted to test drive GRUB2 so I upgraded following instructions here:When I chainloaded GRUB2, I got a menu that only contained Ubuntu; my Windows Vista bootloader entry had disappeared. I couldn't find a sample "40_custom" entry to modify when I tried to create an entry for Vista myself. Had no problem booting into Ubuntu and I could still boot Vista from the old menu. Spent about 20 minutes on it, then I gave up and reinstalled legacy GRUB.
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Feb 8, 2010
I've tried to be clever but as usual I didn't think before acting and missed a small detail.
I have recently installed karmic (dual booting with Vista) on my dell xps laptop. The install went fine, I'm very happy with my new OS.
I bought a new Seagate 500GB portable external HDD. I got a bit over-excited and installed karmic on the external drive. This worked fine and I got a lovely (but slow to appear) Grub2 menu showing my vista and both ubuntu options.
My problem is that now, when I unplug the external drive, Grub fails and I get a grub rescue> prompt. So I need the external drive to be plugged in if I want to boot.
It seems I have done something to the grub configuration. I have read around the subject but I am not confident about how best to proceed.
I understand there is an 'advanced' option in the installer which will allow me to choose where to install grub. Presumably I want it on the internal drive so that I can boot without the external one plugged in.
Am I right in thinking I can just pop in my install disk and redo the installation?
If I indicate I want to install Grub on the internal drive, which partition should I aim for?
Will I get a grub option for booting to the external drive?
Will I be able to plug the external drive into a different machine and boot from it?
I haven't done anything with the fresh install on the external drive so I don't mind losing that.
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Mar 27, 2010
I'm using the Live CD and have followed steps to recover grub2 after XP install. (damn Windows)!
Upon rebooting I get the grub> prompt with no where to go. Upon installing grub via the Live CD I get this:
Quote:
Update:
When I do this link, upon doing the
Quote:
I get this:
Quote:
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Oct 2, 2010
I have a dual boot config with
sda1 /boot
sda2 Win7
sda3 /
sda4 Truecrypt Partition
i have grub1 working and chaonloading truecrypt loader if i choose "win7" in grub1 menu I want to install a new kubuntu (no upgrade) I have read that that there are problems with grub2 and truecrypt actually a bug that grub2 dont chainloads truecrypt boot loader many ppl seem to have problems with grub2 then i read somewhere that ubuntu install is not asking for grub2 to be installed and just installing it. is this right?
i think at least for the alternative install cd its wrong. i installed it on another pc and it asked me! it works for win7 and Ubuntu and i guess its grub2 but there is no truecrypt installed anyway, i wanted to ask is the live cd installer asks me for grub2 and what is the best and easiest way to stay with my grub and just change the menu.lst to the new kernel (i guess there will be one)
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Feb 28, 2011
I have an old BIOS (only 149 GB detected in 160 GB drive). I have installed very few OS as a result - Windows in first 80 GB , 2 distros (20 GB each) in next 40 MB which is within the 149 GB. On issue of "update-grub" grub seems to detect all OS and generates grub.cfg. But on boot , one distro does not appear in the menu.
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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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Mar 9, 2010
is it possible to use a Windows-based recovery partition on a dual-boot computer to overwrite the Ubuntu partition and remove the GRUB loader? For instance, if you booted up your computer, accessed the hidden recovery partition and used it to reset the computer to it's factory default settings, would that effectively remove the Ubuntu partition and the GRUB loader? Would a completely new installation of Windows overwrite/uninstall Ubuntu and GRUB automatically?
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