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    #1

    Grub Problem

    Hey

    I have both Win7 and Kubuntu Lynx LTS. However, I used SysRescueCD as an alternative to obtain Gparted and resize partitions. After I logged off from SysRescueCD, it took me to root and I didn't know how to get out of it... so I press the power button -_-

    Now when I try to turn the laptop on, it only prints a black screen with the following message: error: unknown filesystem

    Then it provides a prompt I've never seen before: grub rescue >

    I'm stuck here. I'm not sure what to do. Any help?
    The cyber-world is a whole different world indeed.
    Tags: None
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    #2
    Re: error: unknown filesystem

    It's asking you to do something to restore grub in MBR. So you may now look for grub guides to get your boot loader working once again.

    (You can use a Ubuntu or Kubuntu CD or DVD to rescue your system, which means it'll help setup your grub so you can log onto your OS again.)
    Multibooting: Kubuntu Noble 24.04
    Before: Jammy 22.04, Focal 20.04, Precise 12.04 Xenial 16.04 and Bionic 18.04
    Win XP, 7 & 10 sadly
    Using Linux since June, 2008
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      #3
      Re: error: unknown filesystem

      Still need some help, but I now understand the situation better. I deleted an unnecessary partition using Gparted, and then I put the unallocated memory to my linux partition. This changed the order of the partitions and apparently grub didn't recognize the entire ordeal. I chose the option to use a live CD to set up grub again. Not sure if I did all the steps correctly, but I did my best with the following tutorial --> http://grub.enbug.org/Grub2LiveCdInstallGuide and it worked.

      However, Win7 is not in the list. I can't find it anywhere. It only lets me choose Kubuntu LTS. By doing sudo kate /boot/grub/menu.lst I notice this is a totally different looking grub.

      Not sure what's going on.

      Some Extra Information:

      1. I can still access Win7 through Super Grub Disk with the option "Detect Any OS"

      2. The results of my new grub (/boot/grub/menu.lst):

      Code:
      # menu.lst - See: grub(8), info grub, update-grub(8)
#      grub-install(8), grub-floppy(8),
#      grub-md5-crypt, /usr/share/doc/grub
#      and /usr/share/doc/grub-legacy-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default		0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout		3

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
#   password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title		Windows 95/98/NT/2000
# root		(hd0,0)
# makeactive
# chainloader	+1
#
# title		Linux
# root		(hd0,1)
# kernel	/vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
##   kopt_2_6_8=root=/dev/hdc1 ro
##   kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=8a6e0652-0772-4bc2-84f5-9f601d54ec41

## should update-grub create alternative automagic boot options
## e.g. alternative=true
##   alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
##   lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
##   lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##   altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
##   howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
##   indomU=true
##   indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
##   memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title		Ubuntu 10.04 LTS, kernel 2.6.32-22-generic
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.32-22-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro quiet splash 
initrd		/boot/initrd.img-2.6.32-22-generic
quiet

title		Ubuntu 10.04 LTS, kernel 2.6.32-22-generic (recovery mode)
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.32-22-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro single
initrd		/boot/initrd.img-2.6.32-22-generic

title		Ubuntu 10.04 LTS, kernel 2.6.32-21-generic
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.32-21-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro quiet splash 
initrd		/boot/initrd.img-2.6.32-21-generic
quiet

title		Ubuntu 10.04 LTS, kernel 2.6.32-21-generic (recovery mode)
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.32-21-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro single
initrd		/boot/initrd.img-2.6.32-21-generic

title		Ubuntu 10.04 LTS, kernel 2.6.31-14-generic
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.31-14-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro quiet splash 
initrd		/boot/initrd.img-2.6.31-14-generic
quiet

title		Ubuntu 10.04 LTS, kernel 2.6.31-14-generic (recovery mode)
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/vmlinuz-2.6.31-14-generic root=UUID=8a6e0652-0772-4bc2-84f5-9f601d54ec41 ro single
initrd		/boot/initrd.img-2.6.31-14-generic

title		Chainload into GRUB 2
root		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/grub/core.img

title		Ubuntu 10.04 LTS, memtest86+
uuid		8a6e0652-0772-4bc2-84f5-9f601d54ec41
kernel		/boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST
      The cyber-world is a whole different world indeed.
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