Fedora :: Data Corruption - Grub Didn't Work Anymore
Mar 7, 2011
If you typed it in, my fdisk -l looks like this
[Code].....
I partitioned it using the Acronis (proprietary) partitioning software. I've had to move these around a bit when I initially set it up and at one point grub didnt work anymore. It was after I had to expand my Windows (7) partition. However I'm told that most modern software dont use the same unit of measurement that fdisk still uses 'til this day. Should I even be concerned? I did have to reinstall grub after I initial set all my partitions up. This post is merely a double-check to make sure.
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Mar 4, 2011
I have 2 hard disks. sda,sdb
In sda, I have 4 partitions, and I have windows 7 in one of the extended partitions [not in the primary partition].
In sdb, I have 3 partitions. 2 for storage, and 1 10GB drive for Ubuntu. Again, Ubuntu is not of a primary partition.
I had ubuntu 10.04 running on that for a long time. However, I wanted to reinstall ubuntu and use 10.10.This is what I did EXACTLY:Booted from Ubuntu install CD
Chose advanced istall
Selected sdb3 for Ubuntu
I installed GRUB2 on the SAME partition as Ubuntu aka sdb3 Installed then rebooted
I can boot into Ubuntu fine, but whenever I select Windows 7 bootloader from the GRUB menu, the screen goes black, and my PC reboots.
Boot Info:
Code:
Boot Info Script 0.55 dated February 15th, 2010 [code]....
ls: reading directory sda6/: Input/output error
I have tried the testdisk/update-grub method, but it didn't work.
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Jul 24, 2009
During a recent request to install fedora 11, I ran into an interesting problem. It seems that between fedora10 and fedora11, the developers switched from fdisk, to parted for creating the initial pre-mke2fs partition table creation.
It looks like the implementation of this is broken, as it's writing the partition table with overlapping cylinder boundaries. While this can sometimes be ignored, it can in certain cases cause significant data corruption.
On an installation I took it through, using the latest installation media, in both manual & automatic partition creation, the layout looked like this:
The last two partitions turn out fine, for some reason. However, those two partitions should not have overlapping cylinders. After my very first installation, the system was completely unbootable, and not even fsck wouldn't rescue it. If this is possible, then that means that a system that's been online for months or even years could simply drop out of functionality simply due to a byte or two of system-critical data falling on that last cylinder. Considering that a lot of the time kernel data ends up on /dev/sda1 (commonly the /boot partition), this is something that should not be ignored.
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Oct 25, 2010
I've got a double boot system (Windows XP Pro and Ubuntu Maverick). Since I updated Grub2, Grub doesn't work anymore! I'd tried this (because I HAD that error). But since than, I'd a black screen (harddisk didn't anything, and Grub too...) And now, after using a couple of these commands via the Ubuntu Lucid Lynx Live CD I get a mini bash in Grub, but no entry's to one of the two systems! What's wrong, and what do I have to do? (and what did I wrong?
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Sep 9, 2010
I'm having an interesting issue with my computer right now. It has Ubuntu lucid installed, which was upgraded from karmic shortly after it became available and was up to date as of September 1.
The issue is as follows: It will not boot the internal hard drive (250GB Seagate barracuda). When I select any of the kernels, it appears to be booting, but 6 Hours later, no joy. If I select any of the Kernels in recovery mode, it does nothing, so again no joy.
It will boot my 500GB removable drive via USB (Samsung on the inside), which contains a backup of my lucid (cloned with Clonezilla) from June-ish, but will not do so if the internal hard drive is hooked up, so I cannot access the internals contents while using the backup USB HD.
Now this is where it get's interesting, at least for me. It will boot up a livecd while the internal HD is connected, which was the only way for me to access the contents of my Ubuntu partitions in the internal HD. I have since pulled the Internal out, removed the USB 500GB HD from it's case, installed it into the internal HD bay, hooked up all the cables, turned the computer on and it did boot. While it did seem to take a long while to boot, I'm hoping this may be because it needs a serious amount of updates (294 updates, 485MB are ready via synaptic!). So I now have placed the 250GB Seagate into the USB HD case and can now access it, but the only contents that can be seen, are the items in my defunct vista partition and I cannot find any remnants of my Ubuntu installation, despite gparted being able to see all of the partitions.
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Mar 10, 2010
i had just installed fedora 12 and my architecture is x86_64. i add dictionary widget on my plasma desktop. in my office i am using internet via proxy. now how can i configure dictionary widget to use the same proxy settings? in my shell i have export http_proxy variables, where else i am suppose to set proxy?
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Jan 6, 2011
I want to install Ubuntu (10.10) on the 1TB drive I need to unplug the SSD while installing it in order to dual boot by pressing F8 (the way I want it to be) so that Grub doesn't get installed on the SSD. What I want to know is can I partition the 1TB drive to install Ubuntu without any data corruption or anything? I have read that NTFS can lose data if partitioned with data already on it (I have no way of backing up my 100GB of files on the drive, as currently this IS my backup drive). What I want to do is have 900GB for files, and a 100GB partition (or partitions adding up to 100GB) for Ubuntu- what is the best way to do this? I don't need seperate partitions for ubuntu, can I install the whole thing to the 100GB partition and boot from it? Or do I need swap as well? I was thinking of making 900GB partition, 4GB partition for swap (if needed) and 96GB partition for Ubuntu (/ if I understand) as this is what the "erase entire drive" option creates.
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May 16, 2011
I just upgrade my Fedora 14 to Fedora 15 RC1.I found the critical issue for me that Juniper Network connect(SSL VPN) didn't work for me again.I wonder if the network interface name changed impact this, but I am not sure about it as I didn't see any obviously error.I can connect the VPN auth page with my username and password after I switch my Java plugin to Sun JRE( I use google Chrome).As the Java VPN applet started, it appeared for a while and shutdown again. I think the VPN auth has been passed at that time, the problem might about creating the VPN Tunnel.
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Jun 12, 2009
I have successfully installed Fedora 11. It works fine with no problem what so ever. My problem is that while using F10 I have created a separate partition for "home". I tried to use the same /home partition for F11 but it did not work. how to achieve this and at what state of the installation.
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Mar 17, 2010
I bought the modem above (ZTE MF627), which works great in Windows 7. My laptop dual boots between Windows 7 and Fedora 12, so I rebooted into Fedora and spent a few hours trying to get the modem working. Scouring the Ubuntu forums (as there's only one post on these forums and it simply didn't work), I found a few possible solutions, but nothing seems to be solving the problem. Here goes... The modem gets picked up by the kernel and appears as a USB device.
[Code]...
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Oct 3, 2010
I recently installed Fedora as dual boot with XP on my netbook, but then decided to uninstall it again. I probably did it in the wrong way because everything is messed up. I installed Fedora in a separate partition, so I just deleted that partition. Now when I rebooted my netbook, it starts GRUB.
I get some sort of command prompt like cmd.
grub> {here I can type commands}
I tried several stuff to get everything normal again. First I made a bootable USB which starts the XP Recovery console. Then I used these commands :
Code:
fixboot
fixmbr
I reboot, and there it is again ... the GRUB. How can I get Windows XP working again? I didn't touch the C: boot partition, so the XP installation should still be intact.
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Apr 4, 2009
I use FC9. Yesterday after system update I turned of the computer, but today when it booted the wireless didn't work, ndiswrapper device wlan0:1 does not seem to be present, delaying initialization.I have removed and again installed the wireless driver and looks like it is ok,
[root@localhost utils]# ./ndiswrapper -r bcmwl6
[root@localhost utils]# ./ndiswrapper -i /fatfs/Archiv/Softwere/Drivers/Dr_software/bcmwl6.inf
installing bcmwl6 ...
[root@localhost utils]#
after ndiwwrapper -m
it gives warning( or error )[root@localhost utils]# ./ndiswrapper -m
module configuration already contains alias directive
[Code]....
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Jan 10, 2011
I'm trying Fedora for the first time. I tried installing NVidia's driver with their shellscript but it didn't work for lots of reasons. Has anyone done this before?:[URL].. Does it work? I never used a distro with a package manager before. Aren't there several different drivers for different NVidia cards? How do the instructions in that link make you get the correct driver? And then does it create an /etc/X11/xorg.conf file?
EDIT: or is the Neaveau driver good enough already? I can't figure out if it's basically a finished product or not.
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Jul 25, 2010
I'm using a dual boot system with Fedora and Windows XP. Until a few days ago i could boot in Windows or Linux choosing the option during boot. I have updated Fedora with common updates these days and now i can't boot in Windows anymore, because there are no entry for it anymore to the boot menu.
The graphical boot configuration tool (i'm using Gnome) only lists three different kernel for Fedora but any entry for a Windows partition. Here is how my disk appears:
I'd like to know why this occur and, mostly, which is the most easy way to restore the dual boot
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Sep 5, 2011
When i boot my PC, i get this in my Fedora 16 distro. I have tried as following but none allowing me to boot anymore.
Grub loading.Welcome to GRUB!
error: file not found. Entering rescue mode...
grub rescue>
grub rescue> ls
(hd0) (hd0,gpt3) (hd0,gpt2) (hd0,gpt1)
grub rescue> ls (hd0,gpt2)/
./ ../ lost+found/ memtest86+-4.20 grub2/ System.map-3.1.0-0.rc3.git0.0.fc16.i686 config 3.1.0.0.rc3.git0.0.fc16.i686 grub/ vmlinuz-3.1.0.0.rc3.git0.0.fc16.i686 elf-memtest86+-4.20 initramfs-3.1.0.0.rc3.git0.0.fc16.i686.img initramfs-3.1.0.0.rc4.git0.0.fc16.i686.img System.mpa-3.1.0.0.rc3.git0.0.fc16.i686 config-3.1.0.0.rc3.git0.0.fc16.i686 vmlinuz-3.1.0.0.rc3.git0.0.fc16.i686
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Nov 28, 2010
I have a PC with three partitions: C, D, E. The C: and D: partition are NTFS and C: has Windows XP on it. D: holds my data files and folders in the Windows environment. E: has CentOS version 5.x. The machine is dual bootable. When booting up Grub gave me the options to boot to CentOS (by default) or to boot into Win XP (by selecting it).
Recently I used Partition Magic to resize the D: partition. I shrank the D: partition. The freed space space was then used to create a new NTFS partition.
After the partitioning was completed, I rebooted the machine. But now Grub is having a problem. It does not display the list of of bootable OS options any more. Instead there is just a black screen with the prompt:
grub>
What am I supposed to do here?
I am afraid that after I ran Partition Magic somehow Grub is messed up. How do I recover the previous boot options? Or at the minimum, how do I make the the machine to boot into Windows XP?
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Jul 7, 2010
I've been using fedora for about 2 years, and i recently bought a new laptop. After using a usb mouse my toughpad no longer works? Now it works on login but after login touchpad input is gone.
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Mar 19, 2011
I already had solved the problem [URL].. but after several yum updates it has appeared again. Within the script "/etc/ppp/ip-up" the sixth parameter isn't provided. But the sixth parameter should be "ppp0" (in this case). The script sets it into the variable $LOGDEVICE and passes it as first parameter to annother script. Successfully I had patched "/etc/ppp/ip-up". I would like to report a bug but I'm not sure if it is a wvdial or a ppp/pppd or a Fedora 14 bug.
Now (after several yum patch updates) my patched /etc/ppp/ip-up doesn't help anymore. The registration at the mobile phone provider seems to be ok but the internet connection isn't initialized.
According the man pages wvdial starts ppp or pppd and one of them seems to call /etc/ppp/ip-up. At which point in the subprocessed scripts (under /etc/sysconfig/network-scripts/) I didn't find out yet.
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Jun 9, 2011
I'm using Fedora 15, I have installed XFCE and now I do not have audio in both XFCE and Gnome. The external DAC is found but does not emit a sound.
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Jun 17, 2011
My network printer does not work anymore. What can I do now I have an Lexmark Z617 printer.
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Aug 1, 2011
I recently installed Fedora 15 x86_64 on my new AMD Machine and I'm quite pleased with things thus far.Here's where my problem comes. I mainly bought that machine to help me with Development. More specifically, Virtual Machines for testing purposes. I have installed Fedora 15 x86_64 as a qemu-kvm Virtual Machine and it's working.. for the most part. I am having a whole lot of trouble getting it to connect to the Internet.
My guess is the only way I'm going to reliably do that is to setup a Bridge. Yes/no? However, in order to setup a Bridge I need to disable NetworkManager and that where the fun happens. It completely disables my network connection. I'm probably missing something small, but I can't figure out what I'm missing. I've double checked my ifcfg-em1 multiple times(I've been trying for ~24 hours so far) and all the settings are as they should be.
I've turned NetworkManager off and stopped it(chkconfig and service) and turned network on(chkconfig and service). Theoretically I should simply need to turn off NM and turn on network and things should be fine. no?
Well, aside from adding:
ONBOOT=yes
NM_CONTROLED=no
to ifcfg-em1.
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May 27, 2011
I can not boot into ubuntu anymore, I have a kernel problem. Is it possible to save the stored data? Maybe with a livecd? I am really tired to solve the kernel problem I will only save my data and then I will install ubuntu again.
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Mar 7, 2011
Observed on two host systems both with openSUSE 11.3 32 bit using ext4: When a big files, in this case a 1.2 GB and a 1.7 GB is copied from DVD, usb harddrive or shared folder into a Windows 7 32 bit guest system, the copied file is corrupted. The md5sum has changed and until the guest system has been rebooted successive md5sum tests on the same file comes up with various results... After a reboot md5sum tests show consistent results, but a sum different from the original file.
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Dec 11, 2010
I am trying to update a few pixmap engine themes and can't get the ruler to display/work without corruption in gimp. Works in Inkscape. The two themes have have tried are Scutum
[URL]
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Apr 15, 2011
My Lucid LTS Ubuntu Studio 64 (amd) won't boot anymore; / and /home each are software raid 0 partitions.
I have a Multimedia partition (also ext 4) which I attempted to chmod with a GUI program (I forget what its called now) to enable all users read/write access. Looks like I inadvertently fstabed that partition to be mounted at boot-time (normally my password was required in order to mount it).
I tried to logging out and back into my OS to see if the partition was now writable but it wasen't; instead a filesystem error was noted. I realised then that my partition was IMPROPERLY labelled and I was in a tired state and didn't remember how to rename it & rebooted to make sure all was ok. But it was not:
An error occured when mounting /media/Ubuntu unknown filesystem type "Multimedia"
Boot: recovering journal
From my generic Ubuntu system on a non raid partition, I finally removed the space in the 'offending' partition: Ubuntu Multimedia to UbuntuMultimedia. And I changed the permissions for it.
But if I try to boot Ubuntu Studio via recovery; booting in low res is unusable, and it gets stuck if I SKIP mounting. So I am left with manual boot or drop to a shell. I will have to use an editor like vi or nano and the command prompt. I know that I likely only have to comment out a line in etc/fstab but I am only familiar with nautilus or gedit for this type of operation. And since this OS is on a raid partition its not 'seen' on the live CD....
I would need someone to offer me clear steps to follow with the non gui editors otherwise I'm in trouble...
I just wanted to use that partition for video editing and now I am locked out of my system!
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Apr 24, 2009
Today when i browsing the net suddenly the system going HANG.....i will try to get the system monitor menu but in the menu list there is no icons. it is not displayed. then i will going to a warm restart.......
after that the system didn't showing the grub menu.....it load the WinXP.......i will try two three times but the grub menu is not showing.....i am using the UBUNTU 8.10.
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Feb 9, 2011
I recently noticed some of my one-liners with && and || didn't work as I expected so I googled for "bash && || pitfalls" and found this page [URL] It's probably my fault, but I still don't understand why it wouldn't work as I want it..... I don't even have the code anymore that wasn't working properly because I rewrote it using if ; then ; command ; fi
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Jan 22, 2010
Just installed CentOS 5.4, had no problems until the first time it tried to login, where the keyboard didn't work. There are bugs logged on both the CentOS site, and the Red Hat site, but nobody seems to have a definitive solution (other than buy a USB keyboard). Bearing in mind that the machine in question is not hooked up to a network (i.e. no internet updates), is there a way to resolve this issue?
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Apr 4, 2010
What does it do?? Can i remove it??i tried apt-get remove dnsmasq. it didn't work
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Jul 20, 2010
i did it to mount my hd in the startup but id didnt work, so i want to undo it, and if somebody can tell how to make my hd to be mounted since the startup
[Code]...
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