[NTLUG:Discuss] Recognition of External HD and ability to boot.

[./aal]

On Thu, Dec 4, 2008 at 6:32 AM, Allen Meyers <texas.chef94 at gmail.com> wrote:
> Disk /dev/sda: 40.0 GB, 40007761920 bytes
> 255 heads, 63 sectors/track, 4864 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x000e648d
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1        1537    12345921    7  HPFS/NTFS
> /dev/sda2            1538        1780     1951897+  82  Linux swap / Solaris
>
> Disk /dev/sdb: 160.0 GB, 160041885696 bytes
>
> I have been accused in past of not supplying enougt information so if this
> is overkill my apology.
> Typically since I purchased a 160 external and have not a clue as to how it
> got recognized, but it did and I installed SUSE 11 and my boot sequence was
> Ubuntu, XP, SUSE. Shortly after that got an error msg in SUSE (sorry forgot
> now what it was) but it went unresolved with an inability to boot to SUSE
> and then SUSE and obviously external was unavaible in boot sequence. Then
> for whatever reason I lost ability to boot into anything and in its place
> grub loading error 21. Enter my experience with BIOS. Went there went to
> advanced, no external showing, unplugged external, shut down, replugged went
> to BIOS+advanced and there is the external under the HD and out of
> desperation and ignorance I loaded default, back to boot and access to
> Ubuntu and XP on HD but no external.
> This morning was no exception error 21 same process to get the external into
> BIOS load default because it worked and I am in with no access to external.
> Seems as if I am booting from external, but it appears 2nd on BIOS with no
> access to actual external. If someone will help I will do exactly as they
> indicate. Short of that I will take the drive to Dallas for next meeting.
>
> Allen
>
> 255 heads, 63 sectors/track, 19457 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Disk identifier: 0x5b6ac646
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1               1        5243    42114366   83  Linux
> /dev/sdb2            5244       19457   114173955    5  Extended
> /dev/sdb5           18999       19457     3686886   82  Linux swap / Solaris
> /dev/sdb6   *        5244       18539   106800057   83  Linux
> /dev/sdb7           18540       18998     3686886   82  Linux swap / Solaris
>
> Partition table entries are not in disk order
> allen at allen-laptop:~$
>
>
> --
> Allen Meyers
> texas.chef94 at gmail.com
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
>


Did you google "grub error 21" ?
I did and got this link at the top

http://ubuntuforums.org/showthread.php?t=62717

what does your grub.conf or menu.1st look like?



-- 
I'm a PC
AND I RUN LINUX!!!