Ubuntu :: Why Do New Kernels Have 3 Different Header Entries In GRUB
Jan 14, 2010
So today 2.6.31.17 came. to the b1tch of a cat sleeping on the keyboard, I was forced to a restart before I wanted.
Anyway why does each have have entries for :
linux-headers-2.6.31.17
linux-headers-2.6.31.17-generic
[code]...
How do I know which one I should use from the choice of 3 for the current kernelAnd if I understand which one to use, can I delete the others from the same imageAlso, in start-up manager I have choice of 4 from the drop down list?
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Aug 1, 2010
I have a grub menu with a ton of old kernel entries that I want to delete. I've scoured this forum, and haven't found anything that works. I've tried:
Code:"the easiest way to get rid of old kernels from grub is to uninstall the package, the post-install scripts will update grub
for example my current kernel is:
uname -a
Linux hemma 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:02:15 UTC 2009 x86_64 GNU/Linux
then remove older kernels found in /boot like this:
sudo aptitude remove linux-image-2.6.31-15-generic" When I tried that, the output showed the package being removed, but nothing was removed from the grub menu. I tried running the kernel I supposedly removed, and it wouldn't start, which is promising, but how do I get it out of the grub menu? I've also tried using Synaptic, but that didn't work either.
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Mar 5, 2011
Is it possible to add menu entries for older kernels to boot instead of the latest?
I have tried this in Ubuntu 10.04 and it hasn't worked.
This used to be possible with ease in grub legacy.
I copied the current menu entry from /boot/grub/grub.cfg and pasted it in the /etc/grub.d/ 20_custom file.
Then I changed the kernel number to the older kernel number and the initrd number too. #update-grub puts this entry into 'grub.cfg', but it doesn't work.
I get:
The old kernel is in /boot as well as the respective initrd and config files.
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Oct 12, 2010
I've been using Ubuntu for more than a year (just basic simple stuff like surfing the net or the occasional document) and in the last months I've been running into the following problem.I've been updating regularly to the latest Kernels the last one should be 2.6.32-25. However at start up Grub loads only 2.6.31-19 and below and there's no mentioning of 2.6.32 in grub.cfg while it is present in menu.lst. I tried to update grub with no success.
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Apr 16, 2011
I have GRUB to allow me to boot windows and Ubuntu, i recently noticed that my list of kernels is getting clogged up with all the updates. So i went online to try and find out how to get rid of the unwanted partitions and also how to add new ones - i am going to attempt to hackintosh, and will need to know how to add kernels. What i found out was; the boot menu in GRUB had a file that is supposed to be called 'menu.lst' (Lst not ist), and that all i needed to do was edit this, that it wouldn't delete the kernels, but that i don't need to, i only need to add and remove links to kernels on the GRUB menu. The problem is that after looking, i don't have that menu.lst file, i have a file containing the image files for 'memtest', but not for my GRUB. I am using 10.04, i don't know what version of GRUB im using but i'm using whichever one comes with 10.04. Could someone please point me in the direction of the files i need to edit or what i need to do to add and remove kernels?
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Jan 2, 2010
I recently installed ubuntu 9.10 and a day later updated with all the suggested security and recommended updates. Now I notice that in my Grub there are two different kernel versions listed. Are they both necessary? Can I / should I get rid of the older one, and if so, how?
I ask because after all these updates I notice my computer runs much slower, so I don't want it overloaded with unnecessary software.
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Mar 17, 2010
After I messed up badly with my netbook I have to reinstalll the OS, it is a government property netbook that came up with Edubuntu 7.04 insalled on it. I shouldn't mess with the filesystem but I did and now I have to install Edubuntu from the beginning, but I must be sure that everything will just like I have done no change, so I am afraid that I can make some mistakes at this pointThe first thing that I want to know is: Why there are multiple kernels listed at the GRUB (v 1.5)...this is the full list:
Ubuntu, kernel 2.6.28.9 Default
Ubuntu, kernel 2.6.28.9 Default (recovery mode)
Ubuntu, kernel 2.6.28.9
[code]....
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Jan 30, 2011
Ubuntu disappeared from grub menu after I deleted the old kernels.
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Jul 31, 2011
I ran grub-customiser to set default kernel, and saw the GFX mode setting, thinking "Hey, my monitor is native at 1440x900! I'll use that!" ...Didn't think about how the GFX card isn't initialized at that point, so my res is limited to 640x480... So the first problem was a system hang at the grub menu, with "Input Not Supported" displayed on the monitor.I changed the GFX mode back, and ran update-grub, and with a grin on my face, I rebooted. The grin went away fast, when I saw that none of the kernels showed in the grub menu, and I have only the two memtest entries. It appears that, while all the files are still intact, grub is not seeing the kernels. I had an idle partition of about 13 GB on hand, so after trying all sorts of things, I did a clean install on the little 13 GB partition. Still no dice, after doing an apt-get purge grub etc etc etc on my main Ubuntu partition, to make sure that the new grub was running. I still have only memtest, even though I can open the /boot directory and see the kernel files. I tried going into the grub command line and starting manually, but tab-complete does not suggest any of the kernel files, and tells me that the files do not exist, if I type in their full names.
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Nov 29, 2010
The latest update installed a new linux header 2.6.35-23. The older version 2.6.35-22 also appears in grub. What would be the sense in keeping them both? And if not required how do I remove the older version from grub?
I tried: "sudo update-grub" which changed nothing.
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Mar 18, 2010
I am not able to log to my system as i am getting a strange message at GRUB screen even different kernels are not getting loaded. The entire thing i get is as follows: GNU GRUB version 1.97~beta4 [Minimal BASH-like line editing is supported.For the first word,TAB lists possible command completions.Anywhere else TAB lists possible device/file completions.
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Aug 26, 2010
I have Ubuntu 8.04 (32-bits) installed on /dev/sda and Ubuntu 10.04 (64-bits) installed on /dev/sdc (this is an update from 8.04 64-bits originally installed on /dev/sdc). There is a grub on each of these two disks. Both are the old grub (prior to version 2). Here is the top kernel listing from /dev/sda:
titleUbuntu 10.04 LTS, kernel 2.6.32-24-generic (grub sur unite1)
root(hd2,0)
kernel/boot/vmlinuz-2.6.32-24-generic root=UUID=761c3d13-cc55-4117-934f-693766e122b6 ro quiet splash locale=fr_FR
initrd/boot/initrd.img-2.6.32-24-generic
quiet
[Code]...
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Nov 25, 2010
I followed the Grub 2 Basics steps to remove Grub 2 kernel listings.
However I'm stuck with 3 older versions that was completely_removed from Synaptic (kernel/headers/generic), but remain in grub.cfg.
Quote:
Here is my current grub.cfg:
(How do I remove *.14 *.21 *.22 from my menu entries Ubuntu-tweak is not an option for me. I like it old-school or with the tools at hand.)
Code:
I considered changing permissions for grub.cfg, but update-grub and new kernels will revert my changes.
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May 3, 2011
I have this strange problem on ubuntu 10.04 64 bit, that when running update-grub, it will only put the oldest kernel into the grub menu, despite the fact that I have recent kernels around as well.
in particular:
Code:
# update-grub
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
[code]...
I'd like to see the most recent kernels in the grub menu, with the most recent being on top.
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Feb 17, 2010
I'm sure there is a thread on this somewhere, but after looking though the first 100+ search results, I can't seem to find it.
After a kernel update today, I noticed that new kernels are not being added to my grub menu.lst (so consequently, I was running an older kernel).
Any obvious reason why this would happen (kernels being installed normally, with yum update)? I thought the whole process was supposed to be automagic.
Would it have anything to do with the fact that I just kept my F11 menu.lst, and added a F12 kernel to it when I installed F12 (to a separate partition), then eventually (today, finally) removed the f11 kernels from it?
Here's my menu.lst, in case it's useful:
Code:
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Oct 18, 2010
I'm currently upgrading from 10.04 to 10.10 and the screen is stuck at:
Code:
*** 00_header (Y/I/N/O/D/Z) [default=N] ? y
Installing new version of config file /etc/grub.d/00_header ...
[code]...
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Feb 13, 2010
I have Googled this one and I have tried several fixes so far nothing has worked. All I want to keep is these entries in my grub menu:
"Ubuntu, Linux 2.6.31-19-generic-pae"
"Ubuntu, Linux 2.6.31-17-generic-pae"
"Microsoft Windows XP Professional"
1st - Through Synaptic I removed:
linux-headers-2.6.31-14
linux-headers-2.6.31-14-generic-pae
linux-headers-2.6.31-15
linux-headers-2.6.31-15-generic-pae
[Code]...
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May 19, 2010
In ubuntu 10.04 how to protect Grub Entries...?
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Jul 13, 2010
I used Ubuntu a few years back. I simply was not able to make it my main OS since I couldn't get video calling to work reliably enough. Anyways I just installed and noticed my grub menu had many more entries then I have operating systems on my computer. Some reason they came up as duplicates. I have so far gathered they took away my menu.lst, they replaced it with something like etc/general/grub. It appears editing this file doesn't give me the ability to change entries. There are a few I would like to rename, and a few I want to get rid of. There is also some other file that is not supposed to be edited, will I need to edit this or is there another way around it? I found info like this, but it is only adding not removing.
Assuming that you already looked at the grub2 documentation and had trouble figuring out what to do, try this. Use sudo to edit /etc/grub.d/40_custom. It will look like this:
Code:
#!/bin/sh
exec tail -n +3 $0 .....
After making the change, run 'sudo update-grub' to apply the change to your grub config.
TLDR: Grub 2 added extra entries, how do I remove and rename some?
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Aug 2, 2010
I'll get directly to the point, I've installed Ubuntu, Linux on the same partition as Windows 7. Everything works just as it should be, no problems and I'm actually enjoying Ubuntu. It's a nice and clean OS.
Now, I'm having trouble with the GRUB, since I have updated Ubuntu a few times. It's not a large problem, but I don't like it around.
I attached a picture of my GRUB, it may take too many words to describe what's going on, so see for yourself.
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Mar 27, 2010
I am thinking the GRUB 2 more functionality was achieved at the price of presenting a user with what I experience as Byzantian mangle of default loaded templates, almost designed to make me give up and leave the defaults.menu.lst is no more - its now /boot/grub/grub.cfg DON'T edit it! /etc/grub.d has the new stuff. These are not just a list of boot-up choices anymore. It requires one to be a programmer.One called 20_memtest86+ is not really to be meddled with. I tried simply making it non-executable.The last choice, 40_custom, allows to add entries only - not quite what we wanted to do.
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Feb 16, 2011
Before Ubuntu I used m8, and the boot options for m8 still shows up in the grub startup screen. I want to get rid of those m8 entries. I have edited grub in the past, and it was just a regular text file, where you could just remove lines or even change listing order.Edit the menu using the command "sudo gedit /boot/grub/menu.lst.No good, there is no such file on my system. After password, That command displays a blank Gedit screen.
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Jan 8, 2010
How can I remove entries manually that were automatically generated by grub 2? I have the scripts I need to add my entries, but I don't want the osprober to keep adding new entries. Even if I make the 30_osprober script non-executable, the entries are still there. Can I do this without "breaking the rules" and editing the grub.cfg file?
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Apr 23, 2010
My laptop is set to dual boot, either Ubuntu 9.10 or Windows Vista. The GRUB loader has multiple entries, starting with Ubuntu, then several instances of Ubuntu recovery mode, before memory test and two entries for Vista, the first of which does not work. How do I delete the unwanted entries? I can press "e" to edit them, but if I do so how do I actually delete them, assuming it is safe to do so.
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May 1, 2010
Updated to 10.04 OK except for a couple of things. No sound icon on the task bar and it's not in the 'add to taskbar list'. Not a major problem, just put it in the 'start programs section'.Annoying thing is after selecting from the grub boot menu, the machine seems to be suffering some indesision as the cursor sits on the top lhs of the screen flashing and the screen modulates between various degrees of darkness. Then the machine boots OK. Certainly slower than karmic - not quicker as reported. Seems to be some conflict happening. There is a duplication of the kernal entries for default and safe. Mabe this is the problem. I have run update-grub2, but it keeps giving me double entries.
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Jul 8, 2010
Since I've been using Ubuntu, I've noticed that new entries for Ubuntu (the same but with the final number changed) occasionally appear in the Grub 2 boot loader. I'm talking about the first two entries in this picture, compared with the third and fourth entries here:Two questions:1. What are these entries? They appear to simply be the same OS but different versions. Are they generated when Ubuntu updates?
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Oct 12, 2010
To start by saying that I am brand new to anything linux. I just installed Ubuntu 10.10 32-bit to dual boot on my Windows 7 32-bit PC. This last time that I booted my pc the grub looked like this:
Ubuntu, Linux 2.6.32-25-generic
Ubuntu, Linux 2.6.32-25-generic (recovery mode)
Ubuntu, Linux 2.6.32-24-generic
Ubuntu, Linux 2.6.32-24-generic (recovery mode)
Windows 7 (loader) (on/dev/sda1)
Windows 7 (loader) (on/dev/sda2)
From what I understand the duplicate for Ubuntu is just an updated Kernal, hence the -24 to -25. What I didn't understand is why there is a duplicate for Windows 7 and what the sda1 and sda2 is? Someone please explain. When I first installed Ubuntu, there was only one listing for Ubuntu and one for Windows 7.
Also, I was wondering what you do to keep up with new kernals and remove old one's. How do you keep the Kernals from piling up? I assume that when another Kernal becomes available, there will then be 3 Ubuntu listings in the grub. One last thing is I would like some suggestions for the best way of going about learning linux. (i.e. terminal commands)
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Dec 5, 2010
For the past few weeks I have been using the lastest Ubuntu OS. The following menu pops-up during the boot process.
GNU GRUB version 1.98+20100804-5ubuntu3
Ubuntu, with Linux 2.6.35-22-generic-pae
Ubuntu, with Linux 2.6.35-22-generic-pae (recovery mode)
Memory test (mentest86+)
Memory test (mentest86+, serial console 115200)
Windows 7 (loader) (on /dev/sdb1)
Just recently the menu displays duplicate entries. The first two entries are repeated (see below). What might have caused these duplicate entries to appear and how to correct them? Before this problem occurred I did not issue any sudo commands.
GNU GRUB version 1.98+20100804-5ubuntu3
Ubuntu, with Linux 2.6.35-22-generic-pae
Ubuntu, with Linux 2.6.35-22-generic-pae (recovery mode)
Ubuntu, with Linux 2.6.35-22-generic-pae
Ubuntu, with Linux 2.6.35-22-generic-pae (recovery mode)
Memory test (mentest86+)
Memory test (mentest86+, serial console 115200)
Windows 7 (loader) (on /dev/sdb1)
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Jan 8, 2011
I have been fooling around with some of the new kernels and have ended up with a lot of options in my grub at boot. I have been checking this page:[URL].. ... and it appears hiding the entries in grub2 is not as easy as hashing them out (#) which was the convention in grub.
My problem: I have installed kernel 2.6.36 and 2.6.37 just to fool around. Neither works in anything but low-graphics as it seems the ATI graphics driver is not working in either yet. They both also kill my wireless (don't recognise the card). BUT I don't want to completely uninstall them as I'd like to keep playing around as time goes on and they develop. I'd like to just hide them from the menu.
Is there some easy way of doing this? The link I provide only gives options to make the kernel non-executable (overly complicated process) or remove the kernel completely, neither of which I want to do. This used to be simple in grub, open a file and add or remove a #, and - although overall I prefer grub2 - IMHO this 'improvement' seems a little like a backward step. Sure a million people will disagree, but .
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Jun 6, 2010
I am using ubuntu 10.04 and I would like to keep only the main menu,and i have to disable all the other options including recovery and memtest in the GRUB menu..How to do this..?
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