Ubuntu :: MBR Partition Table Changed With 10.04.1LTS Install?
Jan 13, 2011
I have never seen this before wit any previous versions of ubuntu - wondering if anyone else has seen it or can explain it. The break down of the partition table is being viewed with Ranish Partition v2.43 It's old program, but it has been really handy.
What is happening is: Prior to the install of ubuntu on the 3rd Primary partition, you'll see that the 4th partition (which has a couple of logical partitions in it) starts at: (14,380 - 0 - 1) ===> Cylinder - Head - Sector After the installation of Ubuntu 10.04.1 LTS it shows a Non-conventional start point of: (14,380 - 0 - 62) =====> Cylinder - Head - Sector. An unused is left between the 3rd and 4th Primary partition.
This is not a big deal - just unusual (IMO) With the same partition layout (pre install) It doesn't matter if I install ubuntu on the 1st, 2nd, or 3rd primary partition. The 4th one ALWAYS gets changed this way.
Is there a difference between using GPT partition table when formating hard drives and MS-DOS partition table? What are the advantages/disadvantages of using either?
I was installing opensuse 11.2 in parallel with windows xp.but during installation suddenly power has gone and after that opensuse is giving me the error message corrupt partition.i am also not able to login in xp. so I decide to reinstall windows, I got the error saying "invalid partition table" after the first restart of windows xp installation.
I tried to use windows system recovery console and committing fixmbr and fixboot commands, but didn't work. i have 2 window partition(1 for windows and 1 for data).i do,nt want to format 2,nd partition.
How can I installed windows?My plan was first to install windows xp, then opensuse again.
Purpose: Python, PHP, WebKit (hopefully), and pyqt development. There is Wubi for Ubuntu, which I am using right now. But Ubuntu 11.04 doesn't work well with my system. There is a Wubi like installer for Puppy Linux. There is Debian Win32 installer, but I think that does touch the partition table. My last option is to simply grab Ubuntu 10.04 LTS and hope it works. Would that be a viable solution considering my needs?
Using ubuntu minimal install 9.10 for a htpc. My boot drive is a 2Gb disk on module. When using advanced install I am eventually given the option to format the drive and ultimately the option to pick what sort of partition table type. I am not sure what to pick; it appears to have msdos as a default. Here are my options:
aix amiga bsd dvh gpt mac msdos (default?) pc98 sun loop
Some appear to be obviously bad choices; but I am not sure. Any ideas on which would be a better pick for me? I have already used msdos and it seems to work fine.
I have installed the fedora 13 x86_64 live cd. I updated fedora as well as installing gparted.y hard disc containing my operating systems is not being read by gparted.unalloacted partition table. Also i am not able to mount a ntfs parition on the same hard disc.I did create the partition table on all hard discs with gparted livAnybody else had this problem? A kernel crash is also reported.DIT:I booted ubuntu 10.04 and opened gparted v5.1 without any problem. I booted fedora 13 again and now gparted 5.2
As soon as I install and reboot OpenSUSE, my partition table gets lost somehow. Here is some information about my system:
Dual-booting system with Vista and OpenSUSE 2 SATA hard drives combined into one with Vista installed on them. 1 IDE hard drive with OpenSUSE installed on it.
When I install OpenSUSE, it loads fine right after the installation. Then, when I reboot the computer and select to load OpenSUSE from the Grub loader menu, it hangs right after:
root(hd4,1) Filesystem type is ext2fs, partition type 0x83 kernel /boot/vmlinuz-2.6.31.5-0.1-desktop root=/dev/disk/by-id/ata-IC35l....... and so on
I tried running System Repair off of a DVD and automated test - it tells me that the partition table is lost. I choose to recover partition table and after a while it does but I am still unable to boot.
I installed openSUSE on a XP runnng computer and every thing is OK.When I tried to Install a new XP, I got this error:Code:Invalid Partition Table I fixed it by reinstalling GRUB using Rescue System.I tried fix mbr on XP Repair System and I got that error again.Now I want to keep XP and remove openSUSE. But computer only boots by GRUB and XP's boot loader is unable to boot and shows that error
I have installed HP g6 notebook from live-cd with 10.04 LTS across multiple partitions, only to find that the partition table is not setup correctly. I place the following mount points on separate partitions:
Do i have any chances to restore my windows partition table after tried to install debian and i used the entire disk instead of the free space i had alocated for this
after i figured out what i did i stoped the installation but was to late ... i answered yes at write partition table changes on disk question
i tried win7 automate recovery tool from dvd and manual install of mbr with no successful result
i was experiencing slow start ups since i installed ubuntu 11.04. it took about 20-30sec for the apple logo to come up (or rEFIt). today apple released EFI firmware updates which doesn't seem to install. reason is that the partition scheme is not compatible. EFI Firmware updates only install from GUID partition schemes. DiskUtility tells me i have MBR. So it seems like Ubuntu changed the Partition Scheme.
Can any body confirm that? how can i make sure ubuntu installs into existing GUID? i will re-partition later today and give you an update if the EFI firmware update installs and boot time is faster.
I want to change my sda2 partition to ntfs type. i have installed GParted but it is returning a strange type of error. Here is the error dump file...
[Code]...
WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot. WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
Is there a program that will reread the partition table and update the kernel even if one of the unmodified partitions is mounted? I installed my system on one partition, then I added another with free space. Now I want to format the second partition, but the kernel doesn't know about it yet. I tried sfdisk -R /dev/sda, but it refuses while the root partition is mounted. Is there anyway I can avoid rebooting?
i have instaled ubuntu 11.04 wubi on my pc with windows 7. i installed and everything was going ok i navigate on ubuntu already. but the problems star here i went on my ubuntu to the partition section and i format my windows partion to be the home partion and changed the nfts to ext, i did the upgrades but i forgot that theyr running yet and i restart my computer when it boot again it gaves me an error:
try (0,0) : nfts5 : wubildr try (0,1) : ext2 :
and the windows7 says that i have to instal again. so i went to another pc and i made a cd boot and a pen boot. i burned the iso (downloaded from the ubuntu oficial site the 11.04 32 bit version) image to the cd and pen drive prperly, i adjust my boot options to star from usb or cd rom and nothing im struck.
What I believe has happened is that I've corrupted the partition table. Essentially one of my partitions' ending point exceeds the maximum number of cylinders/sectors on my drive.
Essentially I have the same problem as on the thread @ [url] but do not know how to fix this and am afraid to reformat/partition based on sectors without really knowing what I'm doing here.
[code]...
When I try to look at SDA in GParted everything shows up as unallocated (though it's obviously not) and it says
In my efforts to resize my BTRFS Partition, I accidentally unmarked my BTRFS partition as being BTRFS, and can't mark it back as I can't find the numeric ID for BTRFS and how to apply.
I have tried to automate the configuration of a usb drive with not much success.
The problem that I have is that I have a large amount of usb drives that have a partition table of type "loop" and I need to change them to "msdos". The size of the drives vary and I need to use FAT32 or FAT16 file system.
I've tried various partitioning commands and gui applications but cant find one that I can give a one line command to to set the partition table, maximum partition size and file system.
I was reading another thread about someone with a bad partition table and I decided to join this forum. I'm not going to take any drastic actions with the partition (/dev/sda3) in question. I am going to wait for instructions on what to do first. I am not very good with Linux and need some hand holding. System: DELL 4550 Dual-Booted with XP and Ubuntu. Works OK, just no swap. Well, here's what I did: I deleted a partition for Windows XP Pro because it was a trial, and it ran out. I then decided to slide the swap partition for the Ubuntu Linux that I dual-boot into over. (If this was successful, I was going to try expanding the root partition to take up the unused space.) I used Gparted on a CD to do this, as I figured it was safe to do.
I now cannot mount the swap space at bootup (and have to go into a backup version of the OS), although I can use Gparted in Linux to execute the "swapon" command, and it appears that it worked because I now see "swapoff" as an option on the context menu. (I actually don't even need a swap partition, except to hibernate.) If I highlight the swap partition and click on "Drive" on Gparted's menu bar and select "Create Partition Table", it will erase all data on /dev/sda, so how do I fix the bad partition table non-destructively?
Everything is installed and setup on my system, but when I setup my partitions I chose my Windows partition to be bootable. Can I just use cfdisk to toggle the bootable flag so my linux partition is bootable and rewrite the partition table?
USB flash disk partition disappeared as well as partition table I'm not sure about the cause
Code:
root@u# less /var/log/syslog usb 5-1: New USB device found, idVendor=058f, idProduct=1234 usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[code]....
Where did the partition table go? The device had one ext3 partition something around 4GB(size of USB storage device). I need to restore few files from this device.
I'm trying to clone a Linux install to a different laptop. It's made a little complicated by two facts:
1) The 'new' laptop I'm trying to copy my Linux installation to is actually older and has a smaller hard drive then the computer I'm copying from
2) The computer I'm copying from has both a windows and Linux installation; I only care about the Linux partition.
I figured I would copy only the Linux partition from my primary computer to the laptop, sense the laptop doesn't have a large enough hard drive to copy everything. So I used the DD commands to copy SDA3 (main Linux partition) from my main computer to SDA2 of my laptop. When I came back a few hours later I was surprise to find my laptop trying to reboot itself (I never turned it off). It would keep starting to reboot, failing, and restarting itself. Not too surprising sense its boot partition wasn't changed so it's trying to boot into centos when I copied a redhat partition to it.
The problem is that when I used a redhat boot disk the rescue mode was unable to find a Linux partition to mount. /dev/sda2 exists, but trying to mount it gets the complaint "No such file or directory". "fdisk -l" lists sda1 (the boot sector) and sda2. Sda2 is the correct size and reports Linux LVM for its system. But "fdisk -l /dev/sda2" gives the error message "Disk /dev/sda2 doesn't contain a valid partition table" Did I not clone the drive correctly, or was an error caused due to the boot sector not being copied yet (the laptops boot sector is smaller then my old computers, so I can't copy from old computer to laptop)? Can I salvage the laptops partition table somehow, or do I have to repeat the cloning process? And if I do have to re-clone my computer can anyone tell me what I did wrong the first time so it works this time? I don't care if I copy just the Linux partition or both windows and Linux. Even though my main computer has a larger hard drive I'm only using about half of its available space so it should be possible to copy both partitions if I could ignore the unused sections of the harddrive.
Edit: I used DD to copy a tiny part of the Linux partition from my laptop so I could look at it. Most of it is illegible binary of course, but I scrolled through till I found some text right near the beginning:
Code:
VolGroup00 { id="F2MWxh-....-BidcLe" seqno = 1
[code]....
So it seems that the DD command did copy everything over to the laptop, which is good to know. I noticed that it says device="/dev/sda3" right in the middle of the code I just posted. The Linux section of my original computer was SDA3 but I copied it to partition SDA2 of my laptop. So is the problem because the boot partition is for the wrong device? I don't suppose if I modified that one line to say SDA2 it would be able to load correctly? (Not that I know how I would modify the line, short of using the DD command again).
I installed Ubuntu as shown in the wiki and when I went to restart it gave me a lovely blinking cursor and nothing else. So I held down option, loaded into osx, reinstalled rEFIt and got my menu on startup. Unfortunately, the partition sync tool doesn't seam to be working, it gives me an error: Status: MBR partition table is invalid, partitions overlap. Error: Not Found returned from gptsync.efi
I just upgraded my server, and now I am stuck at "Kernel panic- not synching: VFS: Unable to mount root fs on unknown-block(0,0)" I have read other suggestions about booting to previous kernels to reinstall latest kernel, but that doesn't work since I can't boot to any kernel. How can I fix this with the restore cd or from grub2 command line. Reinstalling is not an option as I have lots of configurations that I don't want to lose.
I originally had an Ubuntu partition on my hard drive which occupied about half of it. I installed Windows 7 in the remaining unallocated space and I was planning on doing a grub update from a live cd afterwards. BUT when I looked at my partition table, the space where the ubuntu partition used to be is now unallocated space!
I got swap space full error and the ubuntu version of "blue screen of death". I used Disk Utilities to delete a 2.1GB unused partition. When I tried to create a swap space partition (with Disk Utilities) it failed. In the mean time ubuntu did some security updates. When I tried to create again Disk Uilities did not complain but only created a small ~ 500 kB partition. I deleted that and reboot and got "unknown filesystem grub rescue>". I booted from a USB key successfully. Now Disk Utilities and File Browser can see all the partitions and files on the hard drive, but GParted thinks the entire hard drive is unallocated. I vaguely remember that there are two partition table on the hard drive. It may be that one of them was deleted (when I removed the ~ 500 kB partition with Disk Utilities earlier maybe?). It seems at least the other partition table is still intact since Disk Utilities and File Browser can still see all the partitions and files. Is it possible to restore the deleted or damaged partition table and make the hard drive bootable again?
I Inadvertently deleted a good partition while trying to clean up after a 10.10 update install failure that left grub broken and prevented me from using my working Linux partition. (installed 10.4 in a new partition) Used testdisk to restore the deleted partition which resulted in the entire partition table being wiped out.All partions are gone, win Xp, 2 Linux partitions, 2 Linux swap partitions.Testdisk deep search does see the partitions but will not recreate the table.
Is their anything I am doing wrong in Testdisk that it won't write the table?Nothing else has been written to the disk.I very carefully recorded the partition information - is their any way to manually enter?
I have installed Ubuntu10.04.1LTS in my Desktop amd64 computer. I also downloaded the same version for i386 processors and tried to install the OS for my HCL Pentium Dual Core T4300 @2.1Ghz 4GB RAM laptop, details of which are given in the following two screenshots: dscf0105.jpg and dscf0106.jpg I already have Debian Lenny 5.0.4 installed on the laptop dscf0104.jpg and the laptop works fine when I run the Debian OS or Knoppix liveCD image stored in the HDD of the laptop. We all know that the Ubuntu LTS live CD leads to the following option: Screenshot.jpg However, in my laptop the operation freezes before we can reach the above option. The screenshot explains the situation: dscf0107.jpg I know I could always use one of the alternate downloads and install the OS from it. But my point of contention is: where is the matter going wrong? Can't we use the graphical installer CD to do a CUI installation?
My problem isn't directly related to ubuntu or linux, but I figured that my best chance at a fix would be on ubuntu forums. The problem is that every time I reboot my computer, my partition table gets destroyed. I tried fixing it with testdisk and gparted, but as soon as I rebooted, everything is back to broken. So far I've troubleshooted to the point where I know it's not an operating system's fault. I'm hoping it's nothing more severe than a bad hard drive.
I have searched and didnt find a situation like mine so i thought id ask. i have a dual boot setup on my hp pavillion windows vista /dev/sda1 and backtrack linux 3,while trying to install backtrack 4 (which is ubuntu based) i deleted the former partitons for bt3. im not quite sure what i clicked but using the ubiquity installer it deleted my partition table so now my entire drive is listed as unallocated space. i have some very important files on my windows partition other wise i would just format and start over. how can i restore the partition table and boot to windows to atleast grab the important stuff. the drive hasnt been formatted so the info is still there i just cant get to it anyone have any ideas?
