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I have created a bootable USB stick (USB2/4GB) using the instructions at http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows. Using 12.0.4 on 32bit laptop.

All seems to work, no errors. But when I then boot from this on a laptop, I get the Ubuntu logo, lots of output and then errors such as

usb 1-3: device descriptor read/64, error -110
reset high-speed USB device number 3 using ehci-pci
device not accepting address , error -110

and finally unable to enumerate USB device on port 1 After this I can press enter and get a initramfs shell. I can then shutdown using a long press on power button. The shutdown command is not part of this shell.

So I am guessing that the stick is working otherwise I would not get this far though there may be corruption in the files(?). No other usb ports being used though touchpad/keyboard may be usb.

I have googled this and the only answer seems to be shutting down, removing the power cord (and in my case the battery) for 5 minutes and trying again. This has not worked.

I did get this working a few years back with the same USB stick (since reformatted) on a different laptop. This laptop is a thinkpad T61. Any ideas what I have done wrong?

Just to add the first line of output where it starts to go wrong is [initramfs] Unable to find a medium containing a live file system

Just compared checksum with what I downloaded and they are the same. I downloaded ubuntu-12.04.3-desktop-i386.iso

Regards, John

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Just to add the first line of output where it starts to go wrong is [initramfs] Unable to find a medium containing a live file system –  John Sep 22 '13 at 13:51
    
Just compared checksum with what I downloaded and they are the same. I downloaded ubuntu-12.04.3-desktop-i386.iso –  John Sep 22 '13 at 14:01
    
Try another brand of USB stick? I've had problems in the past. Also try an alternative installer (the program that preps USB.) –  fleamour Sep 22 '13 at 14:58
1  
@John I edited your question to include your comments in the question(as well as added code blocks to your errors so they wer easier to read/find). If you need to add any info to your questions(or any answers you may make in the future) just click edit just below your question then click save rather than use comments. sorry I am not able to help you with an answer, I'm not sure what is going on here. you can delete your comment by clicking the X next to them to keep the question clean. –  TrailRider Sep 22 '13 at 15:00
    
Hi fleamour, I tried with a new installer (UNetbootin) and though far less oitput it hands at the "Unable to find a medium containing a live file system" stage. I do not think it is the installer as such as it does boot from the USB. I noticed a similar problem on this forum where every version works except 12.04.3. So perhaps the answer is to take another version. –  John Sep 23 '13 at 8:08

1 Answer 1

So I downloaded 13.04 and that worked fine. So the problem is 12.04.3 which I have to say is pretty poor. Perhaps it is my PC - a thinkpad so hardly a noname machine - but not impressed. Especially as others have raised this too.

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