Ubuntu Installation :: Convert Grub1 Entry Into Grub2 Shape?
Nov 6, 2010
I have two partition in my netbook (plus swap):
/dev/sda4 with Ubuntu 10.4 /dev/sda5 with Centos 5.5
I use Ubuntu obviously. Centos is there because I need to run some test on that distro. The problem is Centos uses Grub and Ubuntu uses Grub2.
This is /boot/grub/menu.lst from Centos:
Code:
default=0 timeout=5 splashimage=(hd0,4)/boot/grub/splash.xpm.gz
title CentOS (2.6.18-194.17.4.el5xen)
root (hd0,4)
kernel /boot/xen.gz-2.6.18-194.17.4.el5
module /boot/vmlinuz-2.6.18-194.17.4.el5xen ro root=LABEL=/1 rhgb quiet
module /boot/initrd-2.6.18-194.17.4.el5xen.img .....
This was generated running update-grub2 and grub-install under Ubuntu. It's not working. It gives me something like bad magic number. How can I convert the grub1 entry in a grub2 shape?
How is this supposed to work out? I noticed some distros are really good about recognizing your other linux distros and some not. They keep recognizing windows, but not other linux distros. Also, I have run into a few problems when my operating systems were on different hard drives. I have my operating systems running from a small 250gb laptop hard drive with special mounting and am using my TB hard drive for internal storage /data.However, my last attempt at installing a linux partition on the TB hard drive with Windows and another linux partition on the laptop hard drive didnt work out so well. Updating grub via the command line didnt sort this out. Sudo su root Apt-get update grub (or grub update) or whatever didnt work before when I tried it.
My machines are using Kubuntu 9.10 but not from a fresh install. They are being upgraded from 8.04, 8.10, 9.04 until this version. So I still have GRUB1 as the bootloader. Can I upgrade to GRUB2? If yes, how? Will I gain anything with this upgrade?
Here is my current setup. I have installed Windows 7 Home Premium 64-bit, Ubuntu 9.10 64-bit, and BackTrack 4 Final in that order. All operating systems are able to boot and all is working well. The only problem I'm faced with is really just an annoyance. Which is BackTrack is showing up with a "Ubuntu 8.10" entry name.
Now I did some research on this. I found out that BackTrack was based on the Ubuntu 8.10 OS so it makes sense why it would show up that way. I found several articles and topics explaining how to modify the GRUB programming files. I guess to change the entry name, but all of them don't seem fool proof to me nor the best way to go about doing things.
One thing I wasn't able to find info on is where GRUB2 actually gets these entry names from. My theory is if I can find out where GRUB gets this info from, I can simply log into the BackTrack partition and change where the "Ubuntu 8.10" entry is to "BackTrack 4" and then run the update-grub2 command within Ubuntu to update the entry names.
Ive installed a fresh copy of ubuntu onto my laptop, dual boot with 7. Everything runs smoothly except the grub. So in grub i have an entry of vista loader. I have removed the ubuntu recovery mode and the memtest entry so now i have 3 entries
Ubuntu vista loader 7 loader
How i can remove the vista loader? PS i have never had installed vista onto my system i bought it brandy new with 7 pre-installed.
GRUB2 replaced the boot entry for Windows 7 when I installed Windows XP. I tried to create my own menu entry for Windows XP but it seamed to me that it was superseded by the Windows 7 boot loader. I have a brand new desktop PC - Core i7 processor, 2 TB hard drive, 6 GB RAM.
I don't know how to bring back a menu entry that was over written / Superseded by another OS being detected by update-grub; in this case Windows 7. I installed Ubuntu 11.04 at the end of many other Linux OS's. So it is a Multi-boot setup. Basically Windows XP has replaced the Windows 7 boot entry in the GRUB 2 Boot menu after running update-grub.
Then to get Windows 7 back I booted off the Windows 7 Install DVD and used the boot repair option. This then changed the working Windows XP Boot Loader to boot Windows 7 which I wanted but there was a catch. Windows XP didn't boot any more because it was replaced / Superseded. The Linux OS's boot fine.
I recently upgraded grub -> grub2 on my karmic box. Grub2 worked when chainloaded from legacy grub, and also the first time I tried it standalone. Both times the grub2 menu came up.
I ran vbeinfo at a grub2 command prompt, and found my monitor's native res listed - 1280x1024. I added that to my /etc/defaults/grub and then ran update-grub, and rebooted. This time no menu appeared and the default entry booted straight away. I suspected that the resolution was not supported for some reason or that the way I entered it in the config file was wrong, so I commented it out again in /etc/default/grub, and ran update-grub again - to no avail.
I have since tried lots of different formats for the GRUB_GFXMODE, such as 1280x1024@24, 1280x1024x24, and the normal 640x480, but none of them give me a grub menu. I have even tried using GRUB_TERMINAL=console, to no avail. I have checked the /boot/grub/grub.cfg file each time to make sure my changes were put there correctly by update-grub. I have also made sure that timeout was set to 10, and the hidden timeout was set to 0. My GRUB_CMDLINE_LINUX_DEFAULT="quiet".
I have reinstalled grub2, grub-pc, and grub-common, and I have dpkg-reconfigured them all too. I have no idea what to do to get my grub menu showing up again.
I've just installed FreeBSD 8.1 on /dev/sda4 (FreeBSD slice), without installing the boot loader from FreeBSD (I've selected None when prompted for boot loader in sysinstall). Now I want to use my existing Grub2 from already installed Ubuntu 10.10 to boot FreeBSD also.
After some reading, I've added to the end of /etc/grub.d/40_custom:
After running sudo update-grub, grup.cfg file shows my new entry. The problem is that after restart, I don't see the new entry in the grub menu.
Another question, If i used chainloader +1, that means I need to have the FreeBSD bootloader installed also on /dev/sda4 right? For chainloading booloaders?
I didn't get to that step, I first want to see the entry in the menu.
Any idea what I might be missing/misdoing? (I also checked for blank spaces in the menuentry like the wiki for grub2 says)
Having just upgraded to Ubuntu 11.04 from 10.10 I noticed that my Grub menu had not upgraded. The upgrade was not as straight forward as it should have been as the PC hung at the end of the installation resulting in a reboot and running dpkg in safe mode to get it all back up and running.
To fix the incorrect grub menu.lst file which was not updating, I renamed the original file and then ran sudo update-grub. It generated a new and correct file. However, my Windows partition was not listed as a Grub menu option.
I have a working Ubuntu install with the Grub2 bootloader. I need to manually add an entry to boot Fedora 13 off of sda. Sda1 is the boot partition, sda2 is LVM. None of the examples I've tried work. I do also have F13 grub installed on sda, but chainloading to it didn't do anything other than a blinking cursor.
I have installed Sabayon 5.4 on my laptop besides Ubuntu 10.10. During installation of Sabayon I did not opt for a bootloader as I did not want to disturb the already existing Grub2 on MBR from my Ubuntu installation.After successful installation of Sabayon, I booted into Ubuntu and updated the Grub which detected Sabayon correctly. Then I rebooted and tried to boot into Sabayon but I could not do so. The booting process stopped with the following error -
Code: Activating mdev Detected real-root as md device. Setting up device node Scanning for Volume Groups
[code]....
So evidently, Grub has wrongly taken the values of root as /dev/md0 and swap as /dev/sda2.I again went back to Grub2 screen edited the Sabayon entry by replacing /dev/md0- with /dev/sda4 and swap:/dev/sda2 with swap:/dev/sda8 and pressed Ctrl+x. Now I was able to boot into Sabayon. how do I make these changes permanent. Which files should I edit so that Grub correctly read root as /dev/sda4 and swap as /dev/sda8?
is it possible in grub2, that a temporary default entry. For example i have 2 menuentry in grub.cfg 0 & 1. my default is 0 but i want to automatically boot once to 1 and it changes back to 0.
I've accidentally installed grub 2 on a BackTrack4 usb install and I need some instructions to "convert" the old menu.lst so grub2 will automatically boot BT4. Here's the file contents:
Code: # By default, boot the first entry. default 4 # Boot automatically after 30 secs. timeout 30
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
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)?
Can I restore grub1 with a ubuntu 11.04 live cd? if yes how, cause "sudo grub" doesn't work or can i use grub 2 for fedora 12 and windows 7? i think i recall that fedora would need a chainloader and it's own grub1 but that's the one that's broken
I am currently trying to install Sabayon linux, and it expects to use Grub1 for booting from usb (what am I trying to do). So I copied grub files into boot section, but now I need to "root and setup" it - and that's what I can't do, because I don't use Grub1 normally, since I am on Ubuntu which uses Grub2.
(I decided to use Grub1 instead of Grub2 because Sabayon could have some special params, and I am not that much experienced to copy them in new format to grub2 configuration file). So my question is - is there a way to copy grub1 to MBR without having it installed? (using some utility or something like that).
I've been interested in Synfig for a while. In the last version of Ubuntu, there were some problems so I couldn't install it. Yesterday I remembered the program and decided to try it on 9.10. I was amazed, it installed fine and everything worked just how it should. Then later last night, I must have done something because everything turned invisible and when I created a new layer or shape, nothing new appeared.
I fiddled with it for a while and then reinstalled the program a total of like 3 times just in case that would help. Then, I went straight to the Synfig site and downloaded the newest version. It looked better, different, but it behaved exactly the same. I'm very confused and I would like to use Synfig, it seems amazing. I assume there's some little thing I missed or something I pressed that I shouldn't have. Here are screen shots of both versions.
I'm trying to shape bandwidth using HTB method and filtering classes with destination mac address. for this I've found two codes but none of them seem to filter bandwidth as i want (test with iperf)
code 1 Code: tc qdisc add dev eth0 root handle 1: htb tc class add dev eth0 parent 1: classid 1:1 htb rate 1000kbit ceil 1000kbit tc filter add dev eth0 parent 1: protocol ip prio 3 u32 match u16 0x0800 0xFFFF at -2 match u16 0xM4M5 0xFFFF code....
I have installed ubuntu 9.10 and everything was working fine. Just a minutes ago a window popped up telling me that a complete update couldn't be completed, and asked me to go on with a partial update. I did it and then a window popped up (I think it was debconf running) asking me if I wanted to delete phpmyadmin database configuration or if I wanted to keep it... seemed like the updater was removing quite a bunch of packages!
After that I was presented with a long list of packages to be removed (among them apache2, php5, linux headers, etc.) I thought it was going to remove them in order to reinstall them latter, so I let it go) but now there's no ubuntu entry in the grub menu, so I had to boot with windows! Right now I'm downloading ubuntu 9.10 livecd to give it a try...
My problem is this, I decided to try Pardus since I had the disk space available and learned that it never created a entry for Ubuntu 9.10 64-Bit. I have tried many different boot options and have only gotten it to show the first black and white bootsplash but never can continue to boot. Is there a option I am forgetting to add via Pardus's GRUB editor or is it something else?
Update Mgr got me a bunch of updates today, including a kernel (2.6.31-20). I was doing something else, and when it prompted me to do something with menu.lst, I accidentally accepted the default, which I think was to keep menu.lst unchanged.
As a result, the new kernel was installed but not added to menu.lst, so I guess I can't boot to it.
Is there a way to tell my computer, "make the entries into menu.lst automatically"
I guess I could put the entries in manually, but as a beginner, I'm pretty scared to be messing with that file...perhaps if someone has a link to an exceptionally understandable explanation...
i just installed ubuntu 9.10 netbook remix, i made a partition (sda6) for it, first i had only opensuse, and when i was installing ubuntu, i put the bootloader in (sda6) the Opensuse bootloader is installed on MBR,
I just went from Jaunty to Maverick. I booted Maverick and manually mounted my Windows Network drives by clicking on the appropriate "mount" command in the directory /media.I then created an fstab file like I did in Jaunty. Here is the smb mount command that I had in the fstab file. I had a file with the user id and password in the credentials file.Code://???.???.??.?public_p/media/servername smbfs credentials=root,dmask=0777,fmask=0777 0 0This provided me access to my server for the past 18 months.I modified the fstab file for Maverick which was working fine for 3 days so I would automatically mount the server drives.
i have puppy 4.2.1 installed on my hdd and have frugal installed a older version inside the existing puppy and would like to add it to the existing GRUB menu
I currently dual boot and wish to know how to remove the Windows partition/drive while still allowing Ubuntu 9.04 to load safely as my main OS. I know how to restore windows partition by;
If MBR gets damaged boot from MS Windows Xp disc, Select "R" for "recovery console", select main windows installation drive (admin password usually nothing, just press enter) and type "FIXMBR" this will allow you to boot windows again, but Ubuntu partition will be unbootable and require installing ubuntu again to dual boot.
But this leaves Ubuntu partition Un-bootable as it removes the grub menu, how would I do the same for Ubuntu and make window partition un-bootable so I can remove it?
