Ubuntu :: Kernel Updates - No Auto Boot From Grub ?
Mar 27, 2010
I'm remote from my system and so have to wait 2-3 days before I can get access directly, but I've noticed that when the kernel updates automatically (or forced by me), the next reboot stops at the grub page awaiting confirmation of the kernel I want to boot. grub.conf doesnt seem significantly different from that of fedora (my previos distro for this machine) and even has the default lines and times spec'd, so I can't see what's holding it up. Any ideas how I can prevent this so I can have my system auto-updating the kernel AND safe to reboot remotely?
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Mar 9, 2010
I'm currently running Karmic 9.10 in dual boot with Windows 2000. My computer has automatically updated and installed kernels 2.6.31-17, -19 and -20 (They show up in Synaptic as installed).
However, the newest kernel choice in my GRUB menu is 2.6.31-16-generic (followed by -15 and -14). These all start without any errors.
Question: Why haven't the newer updates shown up in GRUB for booting purposes?
Could it be a question that I didn't answer correctly some time back about accepting or not accepting an update or change in GRUB?
How can this be changed? The new kernels do not show up in Start-Up Manager either.
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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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Jul 26, 2010
I've been having a problem on my AMD based machine, 4cpu, gigabyte ga-ma78gm-s2h Mobo, 8GB mem, two 2 terabyte Sata HDs.One thing I've found is that any kernel after 2.6.32-17 has a randomness at boot time whether the system will completely boot or not.
For instance just today I downloaded and installed 2.6.32-24
It fails to boot (I've tried cold boot, warm boot).Running its repair also fails to completely boot.My experience is that if I keep trying it "may" eventually boot but I believe there was some change after 2.6.32-17-generic that's causing the problem.Because as with 2.6.32.23... which also fails to complete bootup many times... eventually my guess is that 2.6.32.24 will also boot "sometimes".But why does 2.6.32.17 always boot for me? Something changed and its not my setup.
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Jan 31, 2010
I installed karmic, then damn small linux - the DSL's loader would not recognize my xubntu automatically, so I got GRUB 1.97 on xubuntu and it recognized my DSL and added it to the menu with 3 alternative resolution options.
Now, xubuntu starts fine, but when I start DSL in any of the modes, I get the following output:
1. 'vga=normal is deprecated use gfxpayload=text before linux command' comes up in the same font as GRUB menu is displayed - but only for a split second, I had to video it to read it!
2. Uncompressing linux... ok, booting the kernel - similarly, disappears before you can read it, and the computer reboots.
Below are my /etc/default/grub and /boot/grub/grub.cfg.
Does all that mean I want to edit /boot/grub/grub.cfg even though I apparently must not?
NB I have some problems with my hard drive, I have to fdisk it a lot but that's probably because my laptop has a dead BIOS battery - I'm having to fdisk it every time I boot up etc. I'm a bit lost with this to be honest! Anyway, please forget the hard drive note unless you seriously suspect it's at fault for GRUB problems.
Code:
Code:
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Jun 7, 2010
I have installed ubuntu 10.04 64 bit in April and it has worked flawlessly. However, today I ws prompted to install Kernel updates. Now when I try to boot it continually cycles between a black screen and the NVIDIA logo.
Yes I have been using the nvidia drivers previously but without incident till now.
I have tried crtl-alt-f1 but this does not stop the cycling.
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Mar 10, 2010
I have a problem with GRUB 2 that I hope someone here can help me fix. Every time I boot I get an error because GRUB deletes that last part of the initrd line in /boot/grub/grub.cfg.
So this:
Code:
Becomes this (notice the missing "c" at the end):
Code:
And the windows part is also broken:
Code:
If I add an extra character at the end of the line it get removed instead and then it works. But only until next time the grub.cfg is auto updated. The error is only there when booting. Reading the file every character is in there.
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May 2, 2015
After some updates Jessie 8 my boot grub shows now 2 kernel versions to boot from.
3.16.0-4-amd64
3.16-3-amd64
- How do I know which one is the newest and if happy with it, how to remove the older one?
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Apr 2, 2011
I couldn't get 10.10 to boot (live or after install). I was able to install and boot 9.10 normally. Then I ran upgrade to 10.10 and I started getting the same problem trying to boot as with 10.10 disk. I found I could boot with 2.6.32 left from 9.10 but it will not boot 9.6.35 kernels. On a normal restart when automatically trying to boot the latest 9.6.35, I get this message before switching to an unresponsive black screen with no further hard drive activity:
GRUB loading
syntax error
Incorrect command
syntax error
error: file not found
[Linux-bzimage, setup=0x3400, size=0x420c50]
[Code]...
I have been searching for a solution and so far have not found anything that worked. I'm a pretty basic user so I'm not sure what is going on.
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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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Dec 9, 2010
My grub2 config is set up to auto select entry 0 and timeout is set to 10. But for some reason, sometimes it just goes to the menu and sits there without booting forever (until I press enter).Is there any way to fixI am using Ubuntu Server 10.10 x64
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Jan 26, 2011
I recently convinced my girlfriend to use Ubuntu on her laptop instead of Windows, by installing wubi (it's not dangerous, you can use Windows when you need to, etc...)
Today there was a kernel update, and some other updates too. We installed them, and now Ubuntu won't boot any more. The Windows boot menu appears, and we choose Ubuntu, then when grub starts it shows "Try (hd0,0): NTFS" for about half a second. Then there's an immediate error:
which shows for about a second or so, and then the computer reboots and tries again.
Did someone forget to test the updates on wubi? Any good ideas on the best way to fix this? I'm sure I can get it fixed, but it'll probably take me a little while to find out what's wrong and get that fixed, so any hints would be nice.
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Jul 23, 2009
I have made a several modifications to my penstick running Xubuntu 10.10 that have greatly enhanced its performance. It took me several weeks to get to this point. I have added entries to /etc/rc.local and added kernel tweaks in /etc/grub.d/40_Custom so that my entries wont be erased. I have also added entries in my /etc/fstab. I have read this document in regards to the kernel but I am concerned about my /etc/fstab,/etc/rc.local and /etc/grub.d/40_Linux files being overwritten from updates.
[URL]
I am concerned about when one of my users decides he wants to run his updates via apt-get or package managers that all of the configs that I have done will be wiped away.
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Jan 9, 2010
I used the update manager to update the kernel and whatever the other recommended updates were yesterday. I shut the computer down overnight and now when i try to boot into Ubuntu 9.10 i get a basic grub shell and when i try commands like "boot" it tells me there is no kernel loaded. I installed Ubuntu with Wubi so it is a dual boot system.
I've tried to access the Linux volume with a live OpenSuse 11 CD but there is no device to mount. It sees the entire hard-drive as if it hasn't been partitioned. I don't necessarily need to fix the installation. I just need to get my files back.
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Feb 10, 2010
I seem to have determined a few other things about my "only gets as far as a GRUB command line" problem:To recap, sda3 (GRUB hd0,2) is the main Linux partition; sda9 (GRUB hd0,8) is the boot partition.GRUB is 0.92.Installation was from an 8.04LTS live CD (at least, that's what the envelope says it is)/"/boot/grub" (i.e., "/grub" on sd9/hd0,8) contains a "menu.lst" file. I modified it (had to do a "sudo gedit" from a command line!) to (1) comment out the line that hides the boot menu, (2) change the timeout from 3 seconds to 90, and (3) add a menu line based on my succesful manual IPL of DOS.
It still boots to a GRUB command line. If I do a "configfile /grub/menu.lst," a boot menu comes up. DOS will successfully IPL, but Linux still gets a "no setup signature found," (ditto for "recovery mode"), which suggests either a bad kernel, or a kernel that's too big for the GRUB to handle.Why would it be finding its way to grub, but not finding the boot menu file?Why would the live CD come up just fine, yet the GRUB and kernel it installs fail?
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Aug 17, 2010
I want to know how to use a grub with a compiled kernel...and perform the boot of the system using a Cd-ROM for this purpose.
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Jul 31, 2011
I locked the screen, came back, typed the password, screen remained black, though cursor was visible and moving. Nothing I could do to rejuvenate the screen. Had to switch to tty6, sudo shutdown -r now. Then, on reboot obtained kernel selection, it proceeded to displaying kernel messages, but froze on sdb, after 3 secs. I figured it was the usb, so turned off, removed usb cables to external hard drives, but again it froze saying something about firewire mouse, the mouse is also usb. I tried several times, but no matter what kernel I chose, I couldn't get it to boot. So I loaded puppy live cd, but now it can't access some parts of the disk. I was running utorrent and the folder with partially downloaded files can be accessed but there's nothing there (there was), and some folders can't be accessed at all.
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Jan 10, 2010
I am moving from Fedora on this particular computer and I was wondering if I install something like VLC media player, will the Auto Software update look for new releases it they come out?
In Fedora yum and the software updater will look for updates on packages that are installed from other repositories and just wondering if Ubuntu has the same function.
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Aug 6, 2010
Nearly every time that automatic updates finishes installing the software and requires a restart of the OS, the PC locks up at the 'Ubuntu' screen with some dots beneath it.
I have been just been forcing it down by powering off/on the PC - which I figure is probably not a safe thing to do but don't know what else to do or how to troubleshoot this problem.
I've looked at some of the log files but can't make any sense of most of them nor do I know which log file might show the problem.
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Sep 2, 2010
I am using samba4 and bind9 (9.7.2rc1) on an ubuntu server 10.04.
Everything works fine, but bind9 ist unable to update DNS entries sent by clients.
I followed the tutorial [URL] but it doesn't work for me.
It doesn't look like a file permission problem:
Code:
-rw-r--r-- 1 root root /usr/local/samba/private/dns.keytab
-rw-r--r-- 1 root root /usr/local/samba/private/dns_update_list
-rw-r--r-- 1 root root /usr/local/samba/private/named.conf
-rw-r--r-- 1 root root /usr/local/samba/private/named.conf.update
[Code].....
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Mar 14, 2010
I'm a very new Linux user, so speak slowly and don't use big words. I installed Karmic from the Live CD. It is the only OS in use on this system. I then upgraded to Ubuntu Studio using the instructions found on the wiki.
On bootup, I get a brief message stating "GRUB loading" and then the system automatically boots to the generic kernel. No GRUB menu is ever displayed. I would like the option to boot to the real-time kernel, but I have no idea how to edit the appropriate files. I've done a fair amount of reading on the subject, but I find very little information relating directly to the real-time kernel, and so I still feel like I'm too green to do it without messing something up.
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Apr 14, 2010
I tried to update to 2.6.31-20 kernel but I think I messed it up, because when I click on it in the GRUB it starts to load but then it goes back to the dell boot up screen and I have to use the older one in order to get onto ubuntu. Is there anything I can do to fix this?
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Aug 29, 2010
I unfortunately remove "some" softwares on my OpenSuse10 (preinstalled on my laptop, without cd driver) cause I was running out of space on hd. Icons starts to dissappear ...
Then I have only the Grub 0.97 shell that appears and to use to solve the problem... tried to boot kernel, but said that it "must be loaded before boot".
In the Grub 0.97 black window I have two lines :
I press "b", to boot with the First line : kernel (hd0,2)/boot/vmlinuz ... but the window turns blue and said "all data would be lost", so it shut down the system automatically to avoid this.
I press "e" to edit the command in the boot sequence for the same line, but don't really know what to tell Grub to do.
I must get my important datas back on my hd before "Restore to factory settings" (the last option). Any solution ?
Maybe it is a step on a solution ?
From [url] I downloaded linux kernel 2.6.27.27 on a usb memory stick. Could it be useful ? how to ?
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Jan 31, 2010
In my Red Hat 7.2 , the /boot/grub/grub.conf has the following data :
But when I reboot my Red Hat server , I don't see the Grub menu to say edit the boot kernel .
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Jan 11, 2010
I had a total freeze during a kernel upgrade, and reinstalled my system(kubuntu karmic) but still cannot boot.
when I try, I get this sequence of text on my screen:
Code:
GRUB loading stage 1.5
GRUB loading, please wait...
Error 15
I know that error 15 means "file not found", but not how to figure out which file it is or how to point correctly to it.
I have tried to install the system on partitions on two separate disks, with the same end result. on the original disk I had some trouble getting through grub install, but on the other disk there were no indications of trouble during setup. can this a problem with the MBR on the first drive?
I have one drive connected by PATA, the rest by SATA, will SATA1 be (hd0)[grub] and /dev/sda [linux], is it the PATA drive, or some other means to determine this without examining the make and model of each drive?
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Feb 16, 2011
My Slackware boots using the huge kernel. I am not using LILO; I am using GRUB from the extras directory on the DVD. I followed the tutorial @ [URL] up to the point where it discusses modifying LILO. My /boot/grub/menu.lst reads, in part:
# Linux bootable partition config begins
title Slackware Linux on (/dev/sda7)
root (hd0,6)
kernel /boot/vmlinuz root=/dev/sda7 ro vga=normal
# Linux bootable partition config ends
This boots the huge kernel. What changes must I make to the above menu.lst entry to boot using the generic kernel?
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Feb 12, 2011
I'm currently administering an Ubuntu box remotely. It's set to install security updates automatically, and it notifies me when I log in via ssh whether it has installed an update which requires a reboot. For example, if it installed a kernel update a few days ago, the update manager will touch a "reboot_required" file in /var/run, and when I ssh into the machine today I'll be greeted with a "System restart required" message. Is there a similar functionality for yum or Packagekit?
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Mar 9, 2011
Has anyone tried encrypting the boot partition to prevent the kernel from being modified. Iv tried following this but I'm running into issues when building. [URL] Im using the source from bzr checkout [URL] Last time I tried I screwed grub and it wouldnt boot.
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Dec 9, 2010
I recently had my AE 1000 linksys wireless adapter driver installed, the info for which can be found here:
[URL]
But today I was presented with 142 automatic updates already downloaded waiting to be installed on my computer. I installed the updates and restarted my computer for the updates to take effect. Well, since then my wireless adapter no longer registers at all, it doesn't even recognize my router let alone connect to it. It is as inoperable as the day I got it.
I am currently using a different computer in the house to get internet. Should I go about following the same directions I did before and reinstall the driver, or is there a more simple way?
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