[SOLVED] Error: No such device <hex number>, Grub Rescue>

Aquarius_Girl · 10-07-2010, 09:41 AM

Did you not read the post no. 29 ? The output of which grub is NULL.

prayag_pjs · 10-07-2010, 09:45 AM

that was execute with normal user so can you do

sudo which grub

Aquarius_Girl · 10-07-2010, 09:48 AM

Code:

anisha@aquarius ~ $ su
Password: 
 _________________________________
( So you're back... about time... )
 ---------------------------------
       o   ,__,
        o  (oo)____
           (__)    )\
              ||--|| *
aquarius anisha # which grub
aquarius anisha #

prayag_pjs · 10-07-2010, 10:09 AM

Hi,

I had to re-read the posts.Form all I came to know(let me know if I am right?)that you have two Linux Mint Installation.When you boot with external usb drive the system boots normally and if you boot without external usb it does'nt.

Connect the external hdd and let us know the GRUB which boots.I want to know which grub it shows is it of Internal hdd or of external usb drive?

Connect external usb drive and give us the output of

Quote:

fdisk -l

and

Quote:

df -h

Aquarius_Girl · 10-07-2010, 10:17 AM

dh is not installed, i shall download the package tomorrow. Thanks.

Code:

aquarius anisha # fdisk -l

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000f0989

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1306    10490413+  83  Linux
/dev/sda2            1307        6528    41945715   83  Linux
/dev/sda3            6529       19458   103853057    5  Extended
/dev/sda5            6529       18927    99587072   83  Linux
/dev/sda6           18927       19458     4264960   82  Linux swap / Solaris

Disk /dev/sdb: 500.1 GB, 500107861504 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0003061f

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         623     4999168   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2             623        1121     3998721    5  Extended
/dev/sdb3            1121       60802   479385600   83  Linux
/dev/sdb5             623        1121     3998720   82  Linux swap / Solaris

prayag_pjs · 10-07-2010, 10:52 AM

Hi,

Its

df -h not dh -h

Also let me know the output of

/boot/grub/grub.conf

or

/etc/grub.conf

I think you can solve the problem following post 5 and post 15.

Aquarius_Girl · 10-07-2010, 10:54 AM

Sorry,

aquarius anisha # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda5 94G 2.0G 87G 3% /
none 996M 352K 995M 1% /dev
none 1003M 0 1003M 0% /dev/shm
none 1003M 292K 1002M 1% /var/run
none 1003M 0 1003M 0% /var/lock
none 1003M 0 1003M 0% /lib/init/rw

prayag_pjs · 10-07-2010, 11:13 AM

hi,
try post no.5
where sdx=sda

it will work

In short.
Boot from rescue cd/dvd
when you get prompt
type

Quote:

#chroot /mnt/sysimage
#grub-install /dev/sda

Then try booting system with and without external drive!
let us know, i am anticipating the solution!

Aquarius_Girl · 10-07-2010, 12:08 PM

What is the harddisk number in which i should install grub, you have to tell me from the output i gave you ?

prayag_pjs · 10-07-2010, 12:27 PM

Install on sda itself not on sda1 or sda3

prayag_pjs · 10-07-2010, 12:29 PM

You also need to make the entry of sdb in your grub.cfg(of sda),so that you can boot the second mint os of external usb drive by making selection in GRUB.

/boot/grub/grub.cfg is the path

prayag_pjs · 10-08-2010, 06:34 AM

Any luck with grub installation?

Aquarius_Girl · 10-08-2010, 06:38 AM

I am in office right now. Bad Grub is in my home

and if your said method crashes my hard-disk I am going to pull out your hair

prayag_pjs · 10-08-2010, 06:47 AM

Quote:

Originally Posted by anishakaul

I am in office right now. Bad Grub is in my home

and if your said method crashes my hard-disk I am going to pull out your hair

Ya sure,I didn't go to the barber from last so many days!!

Aquarius_Girl · 10-09-2010, 09:03 PM

I was just starting to follow your said method, when I remembered that I have a DUAL boot of OpenSuse 11.2 and Linux-Mint on my internal disk.

I installed Mint after Suse thats why it(Suse) doesn't get shown while the boot up process.

Will that effect anything now if I follow your said method ?