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Support => Netbooks => Topic started by: MattC on January 08, 2021, 07:09:44 pm

Title: Operating system not found - DVD Issue
Post by: MattC on January 08, 2021, 07:09:44 pm
Hi,

I'm trying to use an older laptop, but I'm getting a "Operating system not found" error message when I try to use the DVD.  In fact I can't even seem to read from it using an old Linux distro (Lite 1) that was on it (I installed it some time ago).  I've tried replacing the DVD with other DVD drives that I know work, but still get the same issue.  It's an Acer TravelMate 4062LCi.  I know the DVD did work. but suddenly stopped.  I don't want the OS that is on there, but I can't install anything else as it is the only way to install - no USB support in the BIOS.  Any ideas as to what's wrong?
Title: Re: Operating system not found - DVD Issue
Post by: Keith on January 08, 2021, 11:09:45 pm
Hi Matt.

Excuse me being a bit slow, but it's not quite clear whether you are always using the term DVD to mean the DVD reader is not working or the machine is not booting from a Live DVD or you simply can't read a conventional DVD disc.  Or perhaps all three.  Let us know and someone will have a go at helping. 

Keith
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 07:00:18 am
My apologies.  It's accessing the drive that's the problem not the DVDs themselves.  The DVDs work fine in other systems.  The system, here, seems to have trouble accessing anything in the drive - or with any other drive I exchange it with.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 09:54:59 am
Hi Matt
I'm not sure how far I can help you with this, but lets see if your system is seeing the DVD drive,
can you put a disk in the DVD drive then post the following terminal output

Code: [Select]
blkid


Graeme
 
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 02:17:05 pm
Hi,

I get:

/dev/sda1: UUID="..." TYPE="ext2" PARTUUID="a65cfa01-01"
/dev/sda5: UUID="..." TYPE="LVM2_mamber" PARTUUID="a65cfa01-01"
/dev/mapper/linux--vg-root: UUID="..." TYPE="ext4"


The file manager and gparted show no CD ROM drive either.

Matt
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 02:25:24 pm
Ok Matt

With a DVD in the drive (ensure there's something written on the disc) can you post the output of the following
Code: [Select]
ls /media 


Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 02:52:03 pm
cdrom   guest   matt
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 03:29:42 pm
Ok this is looking like a hardware issue. but just to clarify can you post the output of the following

Code: [Select]
ls /media/cdrom

Code: [Select]
ls /media/guest

Code: [Select]
ls /media/matt


Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 03:44:15 pm
OK! The HDD's not working now. >:(  So I can't answer your questions.  I'll wait a while and see if it works.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 04:34:34 pm
The fact you're HDD is not working could be significant

can you you tell me if the drives are connected by IDE or SATA ?


Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 04:59:54 pm
Honestly - no.

If I'm correct, the DVD drive seems to have a port on the back that can be seen on the back of this item in Amazon (B082XDSPNV - type this into Amazon uk/us and this item should come up.  The item displayed is only to illustrate the connector.)  It's not one of the 'double "L" shaped connectors - SATA?  The HDD is one of the older male multi-pin connectors - IDE, I think.  This probably means that the system is IDE not SATA.  Hopefully this isn't too confusing.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 05:26:09 pm
Ok Matt

I think the problem here is hardware

from the link you gave me it looks like your DVD drive is IDE, and the reason I think this is significant is because of the possibility your HDD and DVD is configured as a master/slave set up, which means they both share the same cable and if the cable is faulty then either or both will fail.

The way to find out is to boot into the BIOS and check if your DVD is listed as a slave ( or not listed at all) if so I suspect the problem is the IDE cable but we need to be sure what cable you have

This is what an IDE cable looks like
(https://i.imgur.com/zhAEsZm.jpg)

This is what a SATA cable looks like
(https://i.imgur.com/iAXt5UW.jpg)


Graeme



Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 05:49:32 pm
You may have missed the description in the earlier posts.  The unit is a laptop.  The DVD and HDD are integral.  Although I will check the BIOS.

Edit: removing the DVD drive allows the HDD to load.  The Boot order is correct - HDD, DVD, so the problem is causing the DVD to take over even though it's second.  The result is Operating system not found.  It doesn't refer then to the HDD.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 07:36:10 pm
Ok Matt

Judging from the product number you posted the DVD drive you have is IDE, so the problem could be the drive itself even though you've tried other drives unsuccessfully, because with IDE if it's configured Master/Slave (and assuming the DVD was the slave drive) you would need to set the the jumpers on the DVD drive to slave for it to work IDE is old technology and not necessarily plug and play.

 So going back to the beginning, can you access the BIOS and tell me if the DVD drive is listed and if so is it listed as master or slave ?




Graeme


 
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 08:10:53 pm
The BIOS is very basic, and only shows the very basic information.  The DVD drive only shows in the boot order.  Other than that, there is no indication.

Please note also that there are no Master/Slave jumpers on either of the drives.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 08:34:42 pm
Quote
The DVD drive only shows in the boot order

Well if it shows in the boot order then the system must be seeing it

can you make it first boot device then try booting a live DVD again ?



Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 08:50:11 pm
Quote
The DVD drive only shows in the boot order

Well if it shows in the boot order then the system must be seeing it

Not really.  At present, I have removed the DVD drive in order to allow the HDD to boot up.  The DVD drive is still showing in the boot order.  I think it's a standard setting.
Title: Re: Operating system not found - DVD Issue
Post by: Keith on January 09, 2021, 08:53:53 pm
I believe you are right, Matt:  depending on the age of a computer, the BIOS may show boot orders for floppy-disc, USB-stick, CD/DVD and HDD even if floppy/USB/DVD drives don't exist. 
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 09, 2021, 08:54:25 pm
Quote
Not really.  At present, I have removed the DVD drive in order to allow the HDD to boot up.  The DVD drive is still showing in the boot order.  I think it's a standard setting.

yeah you're probably right

So am I right in thinking that when you reconnect the DVD drive it just slots inside a bay, you don't have to physically connect any cables ?

Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 09, 2021, 09:22:36 pm
emegra, that's correct.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 06:24:15 am

According to this https://www.laptopsdirect.co.uk/acer_travelmate_4062lci_lx.tak05.293/version.asp (https://www.laptopsdirect.co.uk/acer_travelmate_4062lci_lx.tak05.293/version.asp) the 4062lci doesn't have a DVD it comes with a CD Rewriter, it's sister model (4062lmi) has a DVD.

Can you confirm for me the drive is DVD and not CD

also according to the same page you should have 3x usb2 ports, but you said there's no usb bios support, so can you confirm if you do have usb ports and what you mean by no bios support ?

also if connecting the drive stops the HDD booting can you confirm if the drive has a disc in the tray, if so have you tried connecting with the tray empty ?


Graeme



Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 08:40:20 am
The sticker on the back states that the unit is a LCi.  The drive is a DVD reader/CD rewriter.

There are three USB ports, but the BIOS does not allow the USB in the boot order - either through setup or F12.  According to the BIOS it is possible to boot from a FDD, which it doesn't have, and a network.  Plugging in a bootable USB (which I know works) into the USB port and starting the computer and pressing F12 doesn't bring up a USB bootable, either.

Both.  With and without a disc in place.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 09:46:33 am
ok well if the HDD isn't booting only when the DVD drive is connected, then that would suggest the DVD drive is faulty or worse so if you have another DVD drive you can connect it would be worth the effort to confirm that, it would be helpful to know for certain that the drive is ok.

alternatively you can try completely powering down the laptop, remove the battery for 30 secs or so reconnect the DVD drive and try booting up ( I know that sounds crazy but stranger things have happened)

otherwise I don't know what else to suggest at this point.

RE the USB
it's possible that it's capable of USB boot but turned off by default and there may be some setting hidden away in the BIOS you can change to allow it, I had this issue a long time ago where I had to change something in the BIOS to allow USB boot but it's so long ago I can't remember and I've trawled the internet and can't find anything regarding your machine

Graeme
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 11:06:50 am
I have nothing else I can try the drive in, but I have two other drives of the same type that I'm pretty certain work.  Neither of them alleviate the problem.

I'll try the battery removal, but I'm sure I've done this before.

I can't find anything to turn the USB on or off.  The BIOS is so simple, I'm sure I'd find it somewhere.  If I can, I'll try to take a pic of the screens.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 11:18:59 am
Quote
but I have two other drives of the same type that I'm pretty certain work.  Neither of them alleviate the problem.

Do both these drives kill the HDD in the same way ?

Can you tell me the current boot order in the BIOS ?


Graeme

Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 01:19:49 pm
Just tried putting the drive back in and booting up.  Guess what?  The HDD booted.  It did seem to try to access the DVD drive first, though, which has a film DVD in.  The boot order is HDD, DVD/CD, FDD.  Going back to the question that was asked several posts ago (ls /media/…) as I can now access the OS with the DVD drive in:

from matt account:

/cdrom : no result
/guest : permission denied
/matt : no result

I've attached the screen shots of the BIOS.  Note: the info is basic.
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 02:34:31 pm
When you ran
Code: [Select]
ls /media/matt
did you have a DVD with files written on it in the tray ?

if not can you please do that and post the output ?



Graeme

Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 03:22:43 pm
After, again, problems getting the HDD to load with the DVD drive installed, the results of a data disc  show the same as before: no results bar the guest's.

Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 03:42:14 pm
there's still a possibility the DVD drive is faulty but if you've tried 2 others with the same results is kinda unlikely, it seems to me the DVD isn't being activated at start up which points to a bios/motherboard  issue, but I'm no expert and I'm rapidly running out of ideas, I've been trawling the internet looking for clues, the closest I could find was this guy who had a very similar problem and found a solution here

https://forums.tomshardware.com/threads/boot-options-replaced-with-fdd.2113695/ (https://forums.tomshardware.com/threads/boot-options-replaced-with-fdd.2113695/)

If all else fails the only way I can suggest to get a new operating system on the machine is to remove the drive and install it into another machine, install the OS then put it back but that might be more hassle than it's worth

Just a thought have you tried to see if the drive will read a CD ?
Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 05:06:29 pm
OK!  Now here's the thing.   :-[

It's fixed!  Let me explain.

Right at the start I tried another two DVD drives.  Neither of them worked.  Or at least, so I thought/remembered.  Taking another laptop apart and pulling out a compatible drive, I have just tried that one.  It works fine - the HDD boots up and the OS reads the drive.  I retried all the other drives and found that the original one and one of the other spares caused the problem, but the third one of the original ones I tried also works fine.  (Not sure why I thought it didn't work originally - maybe I hadn't quite put it in correctly.)  This third one I have properly installed and tried several times.  It still works fine.  Conclusion: the original one and one of the spares are faulty - just like you stated.   ::)

There is one unanswered question, though.  Why was the problem drive causing the BIOS to ignore the HDD, despite it being first in line?

Whether this question is answered or not, please let me 'voice' my appreciation for all the help and patience offered.


Matt
Title: Re: Operating system not found - DVD Issue
Post by: emegra on January 10, 2021, 05:21:17 pm
Great news
Glad you got it working Matt I applaud your perseverance :)

Quote
Why was the problem drive causing the BIOS to ignore the HDD, despite it being first in line?

Wish I could answer that, but my guess is the DVD & HDD are connected to the same IDE channel in a Master/Slave configuration and the faulty DVD was probably taking out the whole channel

Does that make sense ? :)

Anyway all's well that ends well

Graeme

Title: Re: Operating system not found - DVD Issue
Post by: MattC on January 10, 2021, 05:25:02 pm
When you put it like that, it makes perfect sense.

Thanks again.

Matt
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