Ubuntu :: Change Default Kernel In Grub?
Jul 21, 2010
I have Lucid on my laptop. Unfortunately, with the various 2.6.32 kernels neither hibernate nor suspend work, so I've installed and use the last 2.6.31 kernel that came with Karmic.Now, I'd like to set it as default, so that I don't need to actively choose it when I boot. The problem is that I can't find a way to set Grub (version 2.0, or 1.96rc, can't remember) to pick the 2.6.31 kernel and if I try to uninstall the 2.6.32-23 kernel synaptic says that linux-generic and linux-headers will also be uninstalled (not just the parts specific to 2.6.32-23).
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Feb 7, 2010
I recently installed Karmic, and want to change the default Grub entry to Windows XP. Having done some research and tried things out, I am a bit confused. I have edited etc/default/grub so that it has GRUB_DEFAULT=6 (to correspond to my XP installation) and GRUB_TIMEOUT="3", but after running sudo grub-mkconfig the grub.cfg file still says set default="0".
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Feb 22, 2010
I just installed kubuntu 910 via cd iso. now i want to change the default grub timeout. It says i dont have permission to edit etc / default /grub so what do i do? i dont know how to login as root user.
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Oct 2, 2010
A recent kernel upgrade broke nvidia and the network card. I figured out how to get the grub boot menu, but am having trouble figuring out how to set the default kernel to boot. I believe there used to be a file called /boot/grub/menu.lst that one could edit, but it doesn't appear to exist now.
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May 25, 2011
I'm somewhat of a n00b. I have a dual boot machine running XP and Fedora Core 14. I like my default boot always to be XP. Right now, XP is default BUT every time there is an update to Fedora, it will change the default to Fedora. I now have to edit grub.conf to boot from xp again. Is there a way to make xp always as the default even after an update?
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Feb 11, 2010
Althought /etc/default/grub has GRUB_DEFAULT=6, after grub-update nothing changes and the default menu entry is still the first. Can someone tell me how to change the Grub default menu entry?
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Apr 26, 2010
I have just installed Ubuntu 9.10 on a laptop previously running 8.10
I am unable to change the default OS in Grub from Ubuntu 9.10 as I cannot find /boot/grub/menu.lst.
How do you change the default OS in this newer version of Grub.
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May 25, 2010
I'm extreemly new to Ubuntu and installed 10.04 onto a partition this morning. When I boot up my PC a menu called GRUB comes up and the list of OS's has ubuntu 1st. If I dont change my selection to vista it automatically boots into ubuntu. How can I change the order or default booting OS? I have seen other people talk about it but I'm not sure if it's up to date.
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Jun 20, 2015
So far I've tried to add a number to 'GRUB_DEFAULT=', but it wouldn't want to boot in anything other than Debian or Windows, same with StartUp-Manager...
I currently have the liquorix kernels installed, but I can't get to use them as the standard Debian kernel is always picked. So is there any way to change this behaviour?
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Jun 7, 2010
I recently installed Squeeze. I noticed there are 2 main kernels installed. One first one at the top is 2.6.32-trunk-686 and the other is 2.6.32-3-686. At the time, I did not know or think much about it. Now when I try to get linux headers to compile drivers, I am not finding them. I also read some problems with trunk kernels.
How can I assign the 2.6.32-3-686 kernel to be the default in grub? Is it OK to use it as the main kernel?
Do I need to upgrade the trunk kernel to rid of trunk or just don't use it?
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Mar 3, 2010
Yesterday I installed on my laptop (an IBM Thinkpad T42) "virt manager" using the Synaptic Package Manager. I'm running Karmic.
As part of the installation, SPM had me reboot the computer (which is dual-booted with Windows XP, which I use less than 1% of the time). The new GRUB screen came up showing two new initial lines, the first 2 of the following 4 lines:Ubuntu,
Linux 2.6.31-19-generic-pae
Ubuntu, Linux 2.6.31-19-generic-pae (recovery mode)
Ubuntu, Linux 2.6.31-19-generic
Ubuntu, Linux 2.6.31-19-generic (recovery mode)
When I allow the default choice of the first line to prevail, Ubuntu boots up into a condition in which the Wireless Network Connection fails to open, and in which nothing I've been able to think of makes it open.
If, instead, I scroll down to the third line (which was the initial default choice line, i.e., the default choice line prior to the "virt manager" installation), Ubuntu boots up into a condition in which the Wireless Network Connection operates as usual, viz., immediately.
Scrolling down works, but it would be better, it seems to me, to return to the condition in which the current line 3 either becomes line 1 or else becomes the default bootup choice.
I've used SPM to uninstall "virt manager", but the 2 new intial lines in the GRUB options remain. I understand that with Karmic's version of GRUB, viz., GRUB-2, it is no longer possible to change the bootup menu choices easily.
how I can either eliminate the first 2 lines in my current GRUB screen, or make line 3 the default choice?
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Aug 9, 2010
I just got to finish installing ubuntu lastest version on my new netbook, im really exited about how powerful it can get. The thing is, I'm still keeping my old Windows 7 partition and data, and I want to access it faster, editing the grub options, to change the timer on it, and the default booting option.
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Jul 22, 2011
I'm installing debian squeeze and and I've got 2 hdd (sda,sdb), but I want to install it on sdb. When i get to the "Install the grub boot loader on the hard disk" it automatically installs it on /dev/sda (and I get an error), I want to install it on /dev/sdb... Is it possible.
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Jul 6, 2010
How do I change the default OS on grub, and adding more time to make my choice?
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Dec 23, 2009
Recently, I upgraded 11.1 to 11.2. Everything seemed to go fine. However, for some reason the system boots with the debug kernel - 2.6.31.5-0.1-debug. According to Yast every kernel under the sun seems to be loaded on the system. Grub, however, gives two choices - one for the regular and one for the failsafe system. They both boot to the debug kernel.
How do I get this thing to load into the regular, as opposed to the debug, kernel?
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Jan 30, 2010
I dual-boot my machine and I want it to default to boot into windows so that whenever I restart the machine remotely from my home it will be able to get back into Windows (instead of Ubuntu).
The problem is that every time Ubuntu upgrades the kernel, I have to reset the default boot item of grub back to windows. This is because the grub menu loader uses positions i.e. 6 for default OS to boot. And when Ubuntu installs a new kernel it changes that order.
I am looking for a way to configure grub to remember its default boot item under kernel updates.
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Sep 29, 2010
Possible Duplicate:Make grub keep its default boot under kernel updates.I have just installed Linux with my windows 7 pre-installed and i got it working fine. Since i use windows 7 more than linux, i would like to have "Windows 7" option on the top of "Linux" option.
"When i have turn on my computer, the first thing i see is an Option asking me whether i want to use windows 7 or Linux and there's a countdown timer below it which is 10seconds countdown and if i don't select it on time, it will automatically select the first choice which at the moment i've got Linux pre-set as my first choice."
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Jun 9, 2010
I have installed 10.04 from scratch (fresh install) and I am unable to change the default option of grub using the keyboard. while booting
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Feb 19, 2011
I just got a laptop (DELL PP06S) from a friend set up on kubuntu. He told me to download and run the updates packages if I had time. So so did I and now the computer stops on an error at boot and I can't log in at all to type any command. The error message coming up is:
ata1.00: exeption Emask 0x0 SAct 0x0 action 0x6
ata1.00: BMDMA stat 0x24
ata1.00: failed command: WRITE DMA
[code]....
And it seems to try that action over and over but I never get to log in and type any command. I got told to check the drive cables connections, which I did but it made no difference. I also got told that I could try to start with an older kernel, I tried all the different kernels available in the GNU GRUB but no success. The different options availables are:
Ubuntu, with Linux 2.6.32-26-generic
Ubuntu, with Linux 2.6.32-26-generic (recovery mode)
Ubuntu, with Linux 2.6.32-25-generic
[code]....
From my understanding these are the new and older kernels, is that right? I had to do the updates in 3 times so I guess the kernel from before then isn't in the list anymore. Every one of them shows the same error message and no way to get a console. So I can't type any command. Though, I found out that I can type commands in the GRUB, is there any way to change the kernel from the GRUB? If so what would be the commands?
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Jan 5, 2010
I tried to do my parents a favor by installing Ubuntu 9.10 alongside WinXP on their PC -- same configuration I have on my desktop at home. The install went fine, but since I made a poor buying decision on purchasing a MSI motherboard in the past, Ubuntu immediately crashes after boot (other MSI board users having the same issue, no help from MSI).
The computer tries to boot Ubuntu by default unless something else is selected from the boot menu. How do I change the boot preference from default (choice 0) to WinXP? I tried manually changing this (editing the grub.cfg file), but the file said not to edit, that it's generated by something else...How do I have WinXP load by default instead of the broken Ubuntu?
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May 29, 2010
I have already had Vista installed on another drive and from what i've read on the webs you get to dualboot if you install ubuntu after vista. when i did install it (i installed on a blank hdd with no partitions, choosing the "erase entire disk" option since for some reason default option was attempting to eat a part of my windows 1 gb drive instead of using disk i specially made for it) and the grub 2 loaded for the first time, there was NO option to run vista. only 2 linux (normal and recovery) and 2 memtests. I've ran linux and went to google this. I found that i should add something to some config files in /etc/grub.d/From reading the readme file i understood i could add my own files that are named like NUMBER_SOMENAME and insert code into them. Because it said:Quote: For example, you can add an entry to boot another OS as01_otheros, 11_otheros, etc, depending on the position you want it to occupy inthe menu; and then adjust the default setting via /etc/default/grub. But then i found a file 40_custom that said:
Code:
#!/bin/sh
exec tail -n +3 $0
[code]....
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Sep 12, 2010
How is it possible to change the default text that is displayed on the default BASH logon (attached)?
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Apr 13, 2011
I'm currently setting up a dell server with hardware raid 1 on sas 6r. i got 4 sas installed on the server and configured to raid 1 as stated below,
array 1:
slot 0 & 1
array 2:
slot 2 & 3
during the installation, the installer detect the array 2 as sda and array 1 as sdb.. so i proceed with installation on array 2. after completed the installation, the first reboot lead me to a 'grub-rescue" prompt. by following the guide at url Mode, i've noticed that the boot folder has changed to (hd1,1), which i believe it has changed to sdb1. default root device shows that prefix=(hd0,1)/grub.
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Nov 12, 2010
I've been trying change the default OS in GRUB. I changed the value for GRUB_DEFAULT in etc/default/grub. However, when I run update-grub, I get the following error:
/etc/default/grub: 19: e: not found
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Jul 21, 2010
differences between Kernel Default and Kernel Desktop? I've found some past threads like this link and this other link, and some other google info, which suggest the only difference would be the io scheduler. Also, I see the default grub choice is "Desktop" and not "Default", so I take this as a suggestion to prefer one over the other.
However, my broadcom 4312 wireless only works on the "default" and not on the "desktop" kernel, so I guess there must be other differences. I just want to evaluate which one is the less long-term risk option to go.
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Aug 5, 2009
What config file do you change to change default run level???
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Jan 4, 2010
Over the past few days I have been trying to install an older kernel (kernel 2.6.28.1) on ubuntu 9.10 64-bit WUBI installation. I compiled, installed, and updated my grub for the kernel. When I reboot, the grub menu correctly gives me the option of booting into the older kernel but when I do so I receive the following error message:
error: you need to load the linux kernel first.
I am at a complete loss on how to fix this. I even downgraded grub but I still get the same error.
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Dec 22, 2010
The first is I seem to have 3 GRUB installs. So whilst I update the one from my live session, the change does not appear in the boot up menu. I had installed 10.10 from a CD into a different partition (sda6), but that will not boot, so I have just deleted this and done another grub install and update. The kernel I am using has just been updated from 10.04 to 10.10 too, and it is this that I use and the Grub I have been working on (sda5).
[Code]...
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Aug 15, 2010
I gave sda1-2 for windows and sda 3-4-5 on an extended partition for my linux OS. I installed ubuntu on sda 7 (when I go into disk utilities it shows up as sda 7 idk why) alongside another ubuntu on sda 5 ( EXTENDEDPARTITION : sda 5-6-7 ) so I could remove mandriva bootloader.Since I did, I removed ubuntu (sda 7) since it wasn't necessary but after it gave me the grub file not found.Obviously yes, since GRUB was installed from sda 7 but i have another grub.conf on sda 5 and I would like to know how to change the path of the grub reader to sda 5? or must I install all over again de grub loader?
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Jun 29, 2010
Can i add another kernel 2.4 in grub while kernel 2.6.31 of ubuntu 9.10 exists
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