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hi all, i recently turned off my computer before leaving for work and when i got home and turned it on my Ubuntu 9.10 wont boot. my grub loads and ...
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  1. #1
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    Ubuntu wont boot.


    hi all, i recently turned off my computer before leaving for work and when i got home and turned it on my Ubuntu 9.10 wont boot. my grub loads and the ubuntu logo stays on the screen for a few seconds then it just goes black. when i try to mount the file system from my other OS on a seperate hard drive i revieve this error. just wondering if there is any way to recover my files of fix the OS
    Code:
     Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
           missing codepage or helper program, or other error
           In some cases useful info is found in syslog - try
           dmesg | tail  or so

  2. #2
    Super Moderator devils casper's Avatar
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    Boot up from Ubuntu LiveCD and execute this om Terminal
    Code:
    sudo blkid
    Post output here.


    Mount / partition and post the contents of /etc/fstab file too.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  3. #3
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    ok i am running 9.10 live CD now
    Code:
    ubuntu@ubuntu:~$ sudo blkid
    /dev/loop0: TYPE="squashfs" 
    /dev/sda1: UUID="da7122c2-479e-4ce3-b17d-1ed689c1ab94" TYPE="ext4" 
    /dev/sda5: UUID="f5395f14-114b-4e58-84d9-43788b13ce09" TYPE="swap" 
    /dev/sdb1: UUID="dc24f732-7a1a-42d5-92b4-3ac262680654" TYPE="ext4" 
    /dev/sdb2: UUID="7a4e2ba1-ee82-4063-83d0-b1dff9c97ec3" SEC_TYPE="ext2" TYPE="ext3" 
    /dev/sdb5: TYPE="swap"
    there should be 2 ubuntu systems and 1 debian

    same error when i try and mount the partition that has failed

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    Super Moderator devils casper's Avatar
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    Post the output of sudo fdisk -l command here.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

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    Code:
    ubuntu@ubuntu:~$ sudo fdisk -l
    
    Disk /dev/sda: 60.0 GB, 60040544256 bytes
    255 heads, 63 sectors/track, 7299 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x0008ddb9
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *           1        7052    56639488   83  Linux
    /dev/sda2            7052        7300     1990656+   5  Extended
    /dev/sda5            7052        7300     1990656   82  Linux swap / Solaris
    
    Disk /dev/sdb: 160.0 GB, 160000000000 bytes
    255 heads, 63 sectors/track, 19452 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x000ac97b
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1   *           1       17628   141596878+  83  Linux
    /dev/sdb2           17933       19452    12209400   83  Linux
    /dev/sdb3           17629       17932     2441849    5  Extended
    /dev/sdb5           17629       17932     2441848+  82  Linux swap / Solaris
    
    Partition table entries are not in disk order

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    ***bump***

  8. #7
    Super Moderator devils casper's Avatar
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    ext4 filesystem of Ubuntu partition(s) is not supported/recognized by Debian and that's why Debian is throwing mount error.

    There could be a lot of reasons for blank screen in Ubuntu. Most of the times, Graphics Card driver creates problems. Which Graphics Card do you have? Did you update Ubuntu recently?
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  9. #8
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    the debian partition mounts fine it is only the ubuntu 9.10 partition which i cannot mount. i am not sure about the video card it is onboard but i had a lot of trouble getting resolution above 800x600 until about february and since then no problems. i have not updated recently but i remember now that my computer was froze on the screen saver so i held the power button to shut it down then i havent been able to boot since.

  10. #9
    Super Moderator devils casper's Avatar
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    the debian partition mounts fine it is only the ubuntu 9.10 partition which i cannot mount.
    Ubuntu has ext4 filesystem and you can not mount its partitions using OS that doesn't support ext4.


    Boot up from Ubuntu LiveCD and mount / partition of Ubuntu. Post the contents of /etc/X11/xorg.conf file and output of this command :
    Code:
    lspci | grep -i vga
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  11. #10
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    when trying to mount my ubuntu 9.10 partition from live CD i get this error
    Code:
    Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
           missing codepage or helper program, or other error
           In some cases useful info is found in syslog - try
           dmesg | tail  or so
    i can mount my debian partition and my ubuntu 10.04 LTS no problem

    Code:
    00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04)
    is my video card and i cannot get a copy of my xorg.conf from my 9.10 because i am unable to mount but i used the same xorg.conf for 10.04 so here is a copy from my 10.04 which i am able to mount
    Code:
    Section "Device" 
    Identifier "Configured Video Device" 
    Option "RenderAccel" "true" 
    EndSection 
    
    Section "Monitor" 
    Identifier "Configured Monitor" 
    HorizSync 30.0 - 83.0 
    VertRefresh 55.0-77.0 
    Option "UseEdidFreqs" "1" 
    Option "ReducedBlanking" 
    EndSection 
    Section "Screen" 
    Identifier "Default Screen" 
    Monitor "Configured Monitor" 
    Device "Configured Video Device" 
    DefaultDepth 24 
    
    Subsection "Display" 
    Depth 8 
    Modes "1280x1024" "1024x768" "800x600" "640x480" 
    EndSubsection 
    Subsection "Display" 
    Depth 16 
    Modes "1280x1024" "1024x768" "800x600" "640x480" 
    EndSubsection 
    Subsection "Display" 
    Depth 24 
    Modes "1280x1024" "1024x768" "800x600" "640x480" 
    EndSubsection 
    
    EndSection

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