SOS:Misused mke2fs and cannot boot into system

Discussion in 'General Linux' started by surlogics, Sep 8, 2012.

  1. surlogics

    surlogics New Member

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    I installed ubuntu with wubi in windows7 64bit, and I had installed Mandriva 2011 with a disk. I tried to learn linux with Ubuntu and misused mke2fs; after I reboot my computer, windows7 and ubuntu has crashed.
    As I have mandriva, I boot into mandriva and found

    # df -h

    /dev/sda7 12G 9.8G 1.5G 88% /
    /dev/sda2 15G 165M 14G 2% /media/logical
    /dev/sda6 119G 88G 32G 74% /media/2C9E85319E84F51C
    /dev/sda5 118G 59G 60G 50% /media/D25A6DDE5A6DBFB9
    /dev/sda9 100G 188M 100G 1% /media/ae69134a-a65e-488f-ae7f-150d1b5e36a6
    /dev/sda1 100M 122K 100M 1% /media/DELLUTILITY
    /dev/sda3 98G 81G 17G 83% /media/OS


    # fdisk /dev/sda
    Command (m for help): p
    Disk /dev/sda: 500.1 GB, 500107862016 bytes
    255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0xd24f801e

    Device Boot Start End Blocks Id System
    /dev/sda1 2048 206847 102400 6 FAT16
    /dev/sda2 * 206848 30926847 15360000 7 HPFS/NTFS/exFAT
    /dev/sda3 30926848 235726847 102400000 7 HPFS/NTFS/exFAT
    /dev/sda4 235728864 976771071 370521104 f W95 Ext'd (LBA)
    /dev/sda5 235728896 481488895 122880000 7 HPFS/NTFS/exFAT
    /dev/sda6 727252992 976771071 124759040 7 HPFS/NTFS/exFAT
    /dev/sda7 481500243 506674034 12586896 83 Linux
    /dev/sda8 506674098 514851119 4088511 82 Linux swap / Solaris
    /dev/sda9 514851183 727246484 106197651 83 Linux

    Partition table entries are not in disk order



    I think I may used the following command
    mke2fs -j -L "logical"/dev/sda2

    but I had forgotten what kind of partition it was before I transfered it into ext3

    Data was not lost, and I can view my files as I could in Windows
    In Mandriva, there are following disks;
    117.2G hard disk, files in it is the same as my Windows D:, and ubuntu was installed in it;119.0G hard disk is my G:, with my personal files in it;12.0G is the same with mandriva / (with means root), 101.3G hard disk with nothing but lost+found;DELLUTILITY should be Dell computer utilities preinstalled in my computer ;logical is the disk which I had spoiled;and OS is the C: in my Windows.


    After I boot, grub let me choose Mandriva or Windows. I chose windows and it tells me:FILE system type unknown, partition type 0x7
    Error 13: Invalid or unsupported executable format
    I doubt something wrong with ubuntu grub


    # cat /boot/grub/menu.lst
    timeout 5
    color black/cyan yellow/cyan
    gfxmenu (hd0,6)/boot/gfxmenu
    default 0

    title linux
    kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot logo.nologo quiet resume=UUID=34c546e4-9c42-4526-aa64-bbdc0e9d64fd splash=silent vga=788
    initrd (hd0,6)/boot/initrd.img

    title linux-nonfb
    kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=linux-nonfb root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot resume=UUID=34c546e4-9c42-4526-aa64-bbdc0e9d64fd
    initrd (hd0,6)/boot/initrd.img

    title failsafe
    kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=failsafe root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot failsafe
    initrd (hd0,6)/boot/initrd.img

    title windows
    root (hd0,1)
    makeactive
    chainloader +1



    I can boot into linux, but not ubuntu, it boot into Mandriva

    I dont have a boot disk



    Help me find a way to make it work again, Thanks in advance.

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