Ubuntu :: Can't Boot To Other Backtrack Due To Wrong Uuids
Oct 22, 2010
I'm using 10.10 (updated from 10.04) and from the 10.04 I had problems when the system updated the kernel. After a kernel upgrade I can't boot to my other linux(Backtrack) due to wrong uuids. I must go to /boot/grub/grub.cfg and remove the uid and put /dev/sda5 for example. If I don't edit backtrack loads to busybox. Is there any way to fix that parameteres permantly? Because I don't want to make this change every time.
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Dec 16, 2010
how do I tell grub to stop trying to boot based on UUIDs? I've been dealing with this for about two years now. I have this one system, a PowerEdge 1550, that for some reason WILL NOT boot using a UUID, and will only boot if I edit the first entry in grub, remove everything to do with UUIDs (completely delete the search line, replace root=uuid=[uuid] with root=/dev/sda1). I can't seem to make these settings stick and now with 10.10 there's no longer a menu.lst to edit. So, in short, I need grub to stop trying to boot based on a UUID. Absolute paths, baby. That's what I need.
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May 15, 2011
I have $ uname -a
Linux kub 2.6.32-5-amd64 #1 SMP Mon Mar 7 21:35:22 UTC 2011 x86_64 GNU/Linux
Most of the time when I boot my PC I get an error about fsck.ext4: Unable to resolve... I don't know why it's happening.
The problem is happening with my external drive that has 3 partitions:
/dev/sdc1
/dev/sdc3
/dev/sdc2
About 90% of the time I boot I do get the error. Sometimes after getting the error I can login and the external drive (/dev/sdc) is already mounted:
$ df -H
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 15G 8.0G 5.8G 58% /
tmpfs 1.9G 0 1.9G 0% /lib/init/rw
udev 1.9G 246k 1.9G 1% /dev
tmpfs 1.9G 738k 1.9G 1% /dev/shm
code....
The UUID's in the error file match the output of the command blkid. And the UID's of blkid match the fstab UUID's. I don't know what to do at this point.
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Aug 22, 2009
I am attempting to triple boot Ubuntu, Windows 7, and Backtrack 4. Win7 and Ubuntu are both booting and working properly, but after trying a number of configurations for GRUB I cannot boot Backtrack. Everything I attempt seems to come back to one problem and result in the same error: Error 17.
sda contains both my Windows and Ubuntu partitions...
Code:
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x07dccf10
[Code].....
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Sep 8, 2010
I tried triple booting Ubuntu,Backtrack and windows 7.
I have installed ubuntu through wubi but can install seperately also
How should i proceed?
I have been scared of grub and i wanna overcome it.
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Sep 25, 2010
Trying to boot backtack 4 and I am running into issues. There are a few different options to boot from. And this happens with whichever option I choose.
Hda: cdrom_decode_status: status=0x51 {driveready seekcomplete error}
Hda: cdrom_decode_status: error=0x40 {lastfailedsense=0x40 }
Hda: possibly failed opcode: 0xa0
Other live distros work. I have tried 2 different isos and 4 different dvds. And the live boot works when I try it in virtualbox. Per a google search I turned plug and play os on and off in the bios. Haven't tried much else.
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Dec 28, 2010
Generally I am used to installations of dual boot on different partitions(the traditional method) any windows OS with any ubuntu OS.I tried that with backtrack 4 and Ubuntu 10.04 netbook edition! I had previously installed ubuntu 10.04 and then had an extra partition that had data in it.Went ahead to boot with the backtrack 4 disk BUT it did not give me an option for installing them side-by side so i did it manually by editing the partition with the partitioner! I had 2 swamp spaces one i which was initially there for Ubuntu and the other i created! Then simply formated ine partition with EXT3 and mountpoint of / which made two of them!after installation, the grub shows that there is another OS but when it does not load!
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Jun 7, 2010
I want to install boh win 7 and backtrack4 on my pc. how can I do that?
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Oct 18, 2010
I installed Ubuntu, with a dual boot functionality and worked great. I was recommended Backtrack 4 and I installed it in the system. Now, I try to use the dual boot with Backtrack, Ubuntu and Windows 7 and only Backtrack works. I tried the restore disks that I created when I got the laptop, but the problem persists. s there a way to delete this Backtrack from the system and go back to Windows 7?
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Apr 30, 2010
i successfully install backtrack 3 but i cant see windows option anywhere in my lilo boot loader
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Jun 30, 2010
I have a 500GB SATA drive in a USB enclosure that I use to backup my system.My first step was to clone the 500GB drive in my computer to the USB drive.Now I would like to use rsync to copy changes made since that cloning to the filesystem on the USB drive.But Ubuntu will not let me mount the filesystem because it has the exact same UUID as the main filesystem! I don't know how the UUIDs are created, but without a unique UUID I do not know how to do the mount.
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Sep 8, 2010
I tried triple booting Ubuntu,Backtrack and windows 7.
I have installed ubuntu through wubi but can install seperately also
How should i proceed?
I have been scared of grub and i wanna overcome it.
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Jul 14, 2010
I come with questions to try out the wonderful forum support I keep hearing Ubuntu has! I figure this is a convenient time to ask, since I am soon to swap the UPS on my Ubuntu box. This all refers to Ubuntu 9.04. You see, not too long ago, I had a couple of power outages, and suffice to say, despite the efforts of my UPS, I didn't get to shut down my Ubuntu box properly on either occasion. After the first one, when I powered the computer back on it failed to boot. Some googling of the error message led me to find that the UUIDs Ubuntu assigns to things like hard drives, which are not SUPPOSED to change, had in fact changed. From an archived thread here I found out how to find out what the new ones were, and slapped them into my FSTAB hoping that'd be the end of it.
(Partitions/Drives affected: hda2, hdb) It wasn't. Ubuntu came up with new errors to throw at me. This time, it threw the "bad superblock/wrong fs type" error that I'm used to seeing when I fudge a mount command. It appeared to be the same anyway, it went by so fast I couldn't really read it, sure wish the pause button worked. The gui did finally load, but showed no sign of the affected drives.
I found that if I commented out the affected drives in the fstab, they would appear in the gui, ready and mountable and apparently just fine. I've double-checked the UUIDs. The new UUIDs I put in fstab match the new UUIDs that the vol_id command reports. What is wrong with my fstab? Why won't it mount them automatically? (I'll post both versions as an attachment)
Another minor problem is for some reason I can't get privoxy running anymore. I've temporarily taken to running the Windows version in wine. I seem to remember I had a helluva time getting the linux version to work in the first place anyway, so I think I'll just keep running the windows version in wine. Most importantly, what can I do to prevent this happening again? Debian Sarge never gave me such trouble (and my deb box suffered quite a few improper shutdowns too). Ubuntu's based on Debian. What gives?
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Jul 16, 2010
I'm trying to set up an Ubuntu server using 10.04 (64-bit), and running into problems after a couple of reconfigurations. Here's the full story:I initially built the server on a 400+GB RAID5 array, putting everything but swap in one partition. Unfortunately, I needed to repartition, putting / in the first primary partition, swap in the second partition, /var/log in the third primary partition and /home in the remaining space on the fourth primary partition.
However, at this step, I ran into some problems with UUIDs in /etc/fstab and Grub2 (I've used Linux for about 9 years, but I'm new to Ubuntu, and I haven't used UUIDs or Grub2 on Gentoo, yet). Consequently, I made the (probably not smart) decision to move back to the /dev/sdX notation I am familiar with.The problem with that is that now I need even more space on /home, so I've added a Dell Powervault and a Dell PERC5/e SATA card to my server. Now, Grub2 tries to boot from the new RAID array on the Powervault instead of the internal RAID array, so I am trying to move back to the UUID notation so that I don't have worry about /dev/sda being the internal array sometimes and the external array at other times.I don't mind being RTFM'd, but I'm having trouble finding pointers to the documentation explaining Grub2 configuration and the UUID notation. Does anyone have pointers to some readable, concise documentation on configuring this in Ubuntu?
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Oct 6, 2010
Can I use UUIDs to setup a raid with mdadm?
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Aug 1, 2011
I have installed CrunchBang, then I moved the /tmp and /var to different partitions (I like to put these on reiserfs) the reason I did it after the install is because CrunchBang's installer doesn't give me the options to create reiserfs partitions during install (but does recognise reiserfs as I can manually mount them). Also these two partitions are logical.Anyway I have Windows 7 and Ubuntu 10.04 already installed and working fine but CrunchBang always changes the UUIDs of /var and /tmp when I reboot. Is that even possible I have also tried using the old method of /dev/sd** but of course that gets changed as well.
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Jul 11, 2010
I want to do everything with disk labels. My /etc/fstab is already set up for labels.How can I tell grub2 to use labels? I need it to stop using UUID for root.
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May 6, 2010
When I booted my computer up from coming back to school, it booted weird.
And also it won't let me go to administration or else it freezes.
I can't attach a screenshot because it usually goes to my desktop but I can't see my icons or I can't go to the desktop folder.
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Jul 16, 2010
today I updated my Slackware 13.0 to 13.1. Unfortunately it didn't boot any longer. I probably forgot to run "lilo" before restarting. However, I reinstalled Slackware and I installed grub instead of lilo I'm more familiar with it..
This was my first menu.lst config:
Quote:
title Linux (uuid)
root(hd0,0)
kernel /vmlinuz root=UUID=6a8096a3-3915-4ef2-8984-976e42d04cfc ro vga=0x031b
While booting it stopped and printed this message:
Quote:
Kernel panic - not syncing: VFS; Unable to mount root fs on unknown-block
Then I compared it to other Linux system on different computers and I noticed that every of them, who are using uuids, using an initrd as well. So I created one and now it boots properly.
I just wonder, why? Why does it need an initrd to boot by using uuids?
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Aug 6, 2010
I tried to set up my first dual boot, Ubuntu 10.04 already on drive, added Dream Linux 4 beta 6.3. Now the default is Dream Linux, and the boot option flies past so fast that if you don't have your finger on the down arrow and press immediatly when the screen flashes, you go to Dream. I did a search that said to run grub-mkconfig and add the second os to the file. I got
"avid@david-desktop:~$ sudo grub-mkconfig -o /boot/grub/grub.cfg
[sudo] password for david:
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.32-24-generic
[Code].....
Another thread said to use chroot, but no instructions. I am not knowledgable in command line, and am unsure how to proceed. What I want to accomplish is Ubuntu as the default OS, and more time to decide before the default is loaded.
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Aug 11, 2010
I have /dev/sda with Squeeze and Win 7 on it, and /dev/sdb with Squeeze. I've managed to get Grub 2 to boot from /dev/sdb1, but only by disabling /dev/sda from being a boot option in the BIOS. When it is available to boot, and lower priority than /dev/sdb, grub does not recognize the UUIds of the disks. So, I've disabled it for now and can boot from /dev/sdb no problems. Trouble is I cannot get Win7 to boot. Grub prints:
error: no such device: f0903a3a903a081c
error: invalid signature
When I boot into Squeeze and run 'blkid' I can see that:
/dev/sda1: LABEL="System Reserved" UUID="F0903A3A903A081C" TYPE="ntfs"
The Grub entry for Win 7 is:
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod ntfs
set root='(hd0,1)'
search --no-floppy --fs-uuid --set f0903a3a903a081c
chainloader +1
}
I don't understand how Grub 2 cannot recognize the UUIds. Can Grub 2 to be made to work with volume labels or just plain old /dev/... descriptions? Maybe I should give grub-legacy a go.
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Apr 20, 2011
I've set-up dual boot on my laptop. Ubuntu installed first, then Windows 7 so it uses Grub2 to control the booting on start-up. I've noticed that my system clock goes out by an hour on both OS's, I change the clock to correct time & on reboot the time is usually (not always straight away) an hour behind. Has anyone else had this problem & know how to fix it?
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Aug 17, 2011
Squeeze with lxde. Using network-manager-gnome to manage wifi. I have to disconnect from a nearby unprotected AP to connect to my WPA2 AP. It has stored the pw for my AP; I don't have to type it in when I connect, but it always wants to hit the unprotected Motorola AP by default.
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Mar 19, 2011
My old server machine running Ubuntu 6 experienced hardware failure, so I built a new machine with spare parts and decided to install 10.10. I used the 2 HDDs from the old machine and decided to use existing partitions for the 10.10 installation. I specified the existing partitions on a 250 GB PATA drive for root, /boot, /home, and swap. For some reason when I booted up 10.10 for the first time, the other HDD (750 GB SATA) was mounted as /boot. I never specified the second drive to be used for anything during the installation, so I have no idea why this happened.and how can I change the mount point for /boot? I would like the highlighted partition in the attached screenshot to be /boot. I really hope nothing on the 750 GB drive was overwritten in this whole process, because it contains all of my photo and video backup.
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Jun 6, 2011
I just updated my server from Ubuntu 8.04 to 10.04 and now it cannot go past grub, at boot time, it would "give up waiting for root device", asking me to check whether I gave the right "root=..." or if I should increase the "rootdelay=..." in the command line argument and end up with the initramfs.
The machine is a Dell Poweredge 2900 with a HW RAID controller (I hope that should not matter, but just in case...). I tried to follow the instructions there to make sure grub is setup correctly, but without any luck.
Below is the output from the bootinfoscript (while running on the LiveCD). Anybody has any idea what can be the problem or what I could do to debug this ? I am running out of ideas.
[Code]...
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Jan 26, 2011
My environment is RHEL5. For the sake of discussion, I have two systems, each with multiple ethernet ports.
To simplify the discussion, let's say each computer has two ports. One port is the "public" ethernet (eth0) and the other is the "private" (eth4) ethernet.
All the boot activities must occur on the private site, and to a point this works well. DHCP works, the pxelinux.0 file is transferred (seen using wireshark) and the client appears to bootstrap, when the bootstrap restarts the DHCP handshake using the wrong ethernet port (eth0).
The client does NOT get far enough along to read the client's configuration document under pxelinux.cfg.
How do I instruct pxelinux.0 to use eth4 and not eth0 to continue the boot process?
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Mar 30, 2011
when I installed Ubuntu 9.10 I put in one time setting but it was wrong, and now I don't know where to change it. I tried to change the time preferences, but on reboot I am back to the wrong time.
I know the data is in there somewhere and I can change if I knew where it was.
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Nov 16, 2010
I've recently installed a new graphic card after my old one started to go belly-up and it works nicely in X with twinview. The card have one VGA, one DVI and one HDMI. I have the monitor connected to the VGA and my projector connected to the DVI. However, when I boot the monitor (VGA) don't receive a signal. It is dead until X comes up (and when X comes up it does exactly what I want, it uses the VGA monitor as the main screen).
I had this setup on my old card to and it worked fine. Grub and boot console showed on both screens and I never had to tweak anything to make it do this.
how to enable the VGA outlet, either have boot enabled or only the VGA enabled (either way is fine by me but I really want to see Grub and the boot console on startup).
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Sep 27, 2009
I have been working on a network problem and have found what the actual problem is. For some reason on boot the netmask for my eth0 is set to be 255.255.255.255 In the network GUI application it is set correctly to 255.255.255.0
I looked in the following files and it is set there correctly too.
/etc/sysconfig/networking/devices/ifcfg-eth0
/etc/sysconfig/networking/profile/default/ifcfg-eth0
/etc/sysconfig/networking-scripts/ifcfg-eth0
If I check the box to "controlled by network-manager" the eth0 interface is started at boot but with a netmask of 255.255.255.255. If I uncheck this box then the interface does not come up at boot and I have to go to the GIU application to start it. It still comes up with the netmask of 255.255.255.255
I have to use ifconfig to set it to the right netmask and then everything works until I reboot.
"ifconfig eth0 192.168.1.65 netmask 255.255.255.0"
How do I get this to work properly? I need it to come up with the correct netmask.
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Oct 29, 2009
I'm running windows 7 and the F12 Beta (although the same issue existed in my f11 distro) on an asus g71 bb. When ever I boot into windows my time is correct. If I boot into to F12 my time is wrong. Usually by 4 hours. If I change it in Linux when I boot into windows I end up switching the time on my windows partition. I tried searching the forum (rather casual I'll admit) and couldn't find any solutions.
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