Question about Intel Hasee Nb Q540x-n 13.3" Laptop Celeron M 540, 512 Mb Ram, 80 Gb

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Corrupted os GRUB loading. Welcome to GRUB! error:unknown filesystem. Entering rescue mode... grub rescue>

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Have you tried a System Restore/Recovery? Do you have a Recovery Partition? Take a look here: http://www.unixmen.com/fixing-a-few-common-grub-errors-broken-bootloader-and-error-1715/

Posted on Apr 30, 2013

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Linux System not Booting: A Troubleshooting Session


<span>In a recent days in our lab I've got a with Linux file system. <span> </span>Our lab used Redhat Linux 5.3 Enterprise version. Redhat Linux is an Unix based Operating System and It based on Ext3 file system</span><br /> <span></span> <br /> <span><span>Problem of Linux:<span> The systen cannot access internet. It shows the license expiry error notification. Some</span></span><span>time it doesn't detect the hard drive. Some time the pc can detect hard drive but the Linux started with some errors of file system. Finally the file system of the OS getting crashed and can't boot. At GRUB loading stage it become restarted.</span></span><br /> <span><span></span></span> <br /> <span><span><span>Solution or Troubleshooting: </span><span>If I replace the hard drive cable It detect well and start OS also. Then the pc can detect hard drive but the Linux started with some errors of file system. Then I discovered that there is a problem with OS.<span> </span>Though formatting can solve the problem but that needs a backup of important data. This is time consuming and risky. So I thought to repair the file system</span>.</span></span><br /> <span><span><span></span></span></span> <br /> <span><span><span>At first I'm trying to login in single user mode and repair the file system. I have tried to login by pressing "s" beside kernel at startup in single user mode. But the system doesn't boot. Then I'm trying to repair the OS by RedHat Linux CD. I <span> </span>Insert the CD and select rescue mode by pressing "F5" key. Then I got the single user mode. After that I check all file system sequentially. </span></span></span><span><span><span>/etc /passwd, /etc/shadow, /etc/securetty, /etc/pam.d/login. Those file was wrong. I updated those file by correcting. Then I update the auth config file. After that I boot the system again. But now also it don't get start. Then I rescue the grub by grub-rescue and also update the kernel. After the total process I'm tried again to login from single user mode in root and It get logged. After that I reboot the system and tried to login. Finally it logged in successfully and run properly.<img src="alokerdas.jpg" /></span></span></span>

on Jan 15, 2011 | Computers & Internet

1 Answer

PC Boot problem


Try to call experts for good result

Aug 17, 2016 | Computers & Internet

1 Answer

ASUS Eee PC 900 Notebook when I turn on said grub loading stage1.5 then said grub loading . please wait ...and Error 17 ,how do i fix it ???? plsss any1 help meeeeee plsss,


sorry folks but youve corrupted your bootloader (grub) unless you can restore to factory settings(you might be able to my asus its F10(whilst booting) if you have corrupted your system beyond external repair your only option is to use an external drive and use your operating system restoration discs to restore drivers and O.S

Mar 14, 2011 | ASUS Eee PC 900 PC Notebook

4 Answers

What is grub error 17? how to fix it?


Its GRand Unified Bootloader used in Linux OS.
Normally you get this error when GRUB is not able recognise the partition from which you are trying to boot the system. Make sure the boot partition on your system is recognisable by GRUB (such as EXT3).

You can try to restore the GRUB using the LIVE CD
  1. Boot From Live CD
  2. Open Terminal Window
  3. type >sudo grub
  4. then type : find /boot/grub/stage1
  5. you'll get something like: (hd0, 1)
  6. then type : >root (hd0, 1)
  7. type: > setup (hd0)
  8. >quit
  9. >exit
Remove the Live CD and reboot the system.


Please let me know if you need any further assistance.


Thank you for choosing Fixya




Oct 30, 2009 | Compaq Presario M2000 Notebook

1 Answer

GRUB PROBLEM on clone pc with Red hat linux 6.0


Boot up from Installation CD/DVD and type 'linux rescue' at boot: prompt, This will drop you at 'shell' prompt.
execute this

chroot /mnt/sysimage
cd /boot/grub
less grub.conf
less device.map


post the contents of device.map and grub.conf files ( first title, root and kernel lines of grub.conf ).

Apr 03, 2009 | Red Hat Enterprise ES 4 for Linux

1 Answer

Pc linux OS reboot loop


It might be cause by The MBR was messed up by a bad grub install. You can try to fix the grub.

If you want to try reinstalling grub, boot from the live CD, log in as root, open a Konsole window, and at the prompt, ([root@localhost ~]#) type;

[root@localhost ~]# grub <Enter>

GNU GRUB version 0.97 (640K lower / 3072K upper memory) <-- This is the output from grub after <Enter>

[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename. ]

grub> <-- The grub prompt.

From the grub prompt type;

grub> find /boot/grub/stage2 <Enter>
(hd0,0)
(hd0,4)
(hd0,5)
(hd0,9)
(hd0,11) <-- You'll only have one, use it
(hd1,0)
(hd1,2)
(hd1,4)

grub> root (hd0,5) <Enter> <-- Use what showed up above for yours
Filesystem type is ext2fs, partition type 0x83 <-- Grub reports both ext2 and ext3 as ext2. Don't worry about it.

grub> setup (hd0) <Enter> <-- That is a zero (hd0), not a letter
Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0)"... 15 sectors are embedded.
succeeded
Running "install /boot/grub/stage1 (hd0) (hd0)1+15 p (hd0,5)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded
Done.

grub> quit <Enter>

Your done; grub is reinstalled


P.S.: If this information was helpful, please rate this solution.

Dec 06, 2008 | fedora Linux Operating System

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