Adding a second harddisk on L540

L430 - L470 and L530 - L570 series specific matters only
Post Reply
Message
Author
hmilz
Posts: 3
Joined: Wed Aug 16, 2017 7:05 am
Location: Munich, Germany

Adding a second harddisk on L540

#1 Post by hmilz » Wed Aug 16, 2017 7:24 am

Hi everyone,

I am trying to add a second HDD to my L540 using a caddy for the Ultrabay. The primary HDD is a Samsung 128GB SSD, 2,5", attached to the internal SATA3 port. The OS is on the internal disk, and for various reasons I have no way to change this (why would I, anyway?).

The interesting part comes when I insert the second disk and boot the machine, the boot manager chain (GRUB -> Smartcard login on a mini Linux system -> GRUB4DOS -> Windows) fails to load windows and displays a blank screen. The reason is that the internal disk is seen by Windows and Linux alike to be attached to Bus Number 4, Target Id 0, LUN0, and the second disk is on Bus Number 0, Target Id 0, LUN0. Which basically means that the second disk is enumerated _before_ the internal disk, and the boot manager chain does not find the Windows OS that should be booted. Screenshots from Windows Device Manager:

Image

Image

I played around with my own GRUB4DOS settings but I cannot make the system accept that the internal disk is the first disk.

(The second disk works fine when I hot plug it after Windows boot but this is not a permanent solution...)

Q: What makes the OSes (and the BIOS, I assume, which I can only view but not change due to a BIOS supervisor password) think that the internal disk should be enumerated second?

PS: Things get funny when I swap the 2 disks. HDD0 is now the Toshiba disk, and the machine wants to boot from the Toshiba disk.

Confused... Thank you for any insight!

RealBlackStuff
Admin
Admin
Posts: 18274
Joined: Mon Sep 18, 2006 5:17 am
Location: Mt. Cobb, PA USA
Contact:

Re: Adding a second harddisk on L540

#2 Post by RealBlackStuff » Wed Aug 16, 2017 9:00 am

Have you tried pressing F12 a few times immediately at boot time?
This should give you a menu with your choice of which drive to boot from.
(Unless that function was blocked before the SVP was set).
Lovely day for a Guinness! (The Real Black Stuff)

Check out The Boardroom for Parts, Mods and Other Services.

hmilz
Posts: 3
Joined: Wed Aug 16, 2017 7:05 am
Location: Munich, Germany

Re: Adding a second harddisk on L540

#3 Post by hmilz » Thu Aug 17, 2017 7:09 am

I know, but everything is blocked in the BIOS, and protected by supervisor passwd. I can only boot from HDD0 and PXE.

RealBlackStuff
Admin
Admin
Posts: 18274
Joined: Mon Sep 18, 2006 5:17 am
Location: Mt. Cobb, PA USA
Contact:

Re: Adding a second harddisk on L540

#4 Post by RealBlackStuff » Thu Aug 17, 2017 8:20 am

In that SVP case you cannot boot from a 2nd HDD/SSD in the CD-bay, unless it's the only drive.
Or run that OS in a VM on the 2nd drive.
The L540 also should have a WWAN slot, in which you can put a 3rd drive, an M.2-2242 SSD.
If you put your main (booting) OS on the M.2 drive, then you could probably run a VM on each other drive.
But until you remove the SVP, there's not much extra you can do.

hmilz
Posts: 3
Joined: Wed Aug 16, 2017 7:05 am
Location: Munich, Germany

Re: Adding a second harddisk on L540

#5 Post by hmilz » Thu Aug 17, 2017 9:50 am

Actually, I do not intend to boot from the second HDD. This was just for testing purposes. The problem is that as soon as I insert the second HDD, the machine sees it as the first drive (due to the SCSI Bus numbering which I think is weird), and _tries_ to boot from it, ignoring the internal HDD. My purpose for the 2nd HDD is only as an additional mass storage because the first disk is nearly full, and I do not want to lug around a USB disk.

I should add that this is my company's machine, and I am not supposed to change (too many) things ;-)

So the question is, why is the SCSI bus numbering as it is (first / internal port - bus 4, second port - bus 0), and is there a way to circumvent it. I hear nothing like this in any of the fora, so is this machine the only one with such a strange phenomenon?

RealBlackStuff
Admin
Admin
Posts: 18274
Joined: Mon Sep 18, 2006 5:17 am
Location: Mt. Cobb, PA USA
Contact:

Re: Adding a second harddisk on L540

#6 Post by RealBlackStuff » Thu Aug 17, 2017 10:47 am

All you should need to do is reformat that 2nd drive, so it does not have any boot-sector(s) on it.
Worst case: put the boot-disk in the CD-bay and the (formatted) spare drive in the main bay.

Or go to your IT dept. and ask them nicely (a bottle of Schnaps perhaps?)

Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “ThinkPad L430/L530 and later Series”

Who is online

Users browsing this forum: No registered users and 1 guest