Update: Apparently Diskpart should display unused usb ports as well as the DVD/CD player. Mine doesn't. All I can see here is the laptop hard drive. I'm suspecting this is a more serious issue than a corrupted UEFI directory. Stay tuned. Note: I'm going thru the Event Viewer, and whoa is that ugly.
Continue to work on this one: I found some UEFI diagnostic tools at the HP website for this laptop. Everything tests out okay. No failures anywhere.
It looks like I erroneously cleaned off the FAT32 UEFI partition. I think I need to rebuild that storage, at least so I can boot to the DVD player again.
I was attempting to create a self standing USB Flash Drive with Ubuntu. I specifically don't want to put Ubuntu on a partition, I'd just like to run it off of a usb drive. Somehow I think I've corrupted the UEFI system where the USB or the CD/DVD drive is involved.
--HP G6-2249WM laptop
--Windows 8.1
--I did reinstall the UEFI driver from HP, that changed nothing, except to hide the bios boot options during startup.
At this point, I can no longer boot to either the USB system or to a CD/DVD (to run "boot repair disk" .. a tool that cleans up UEFI control system). The system boots fine in Windows 8.1. I can see the dvd drive fine in Windows explorer. I've changed the BIOS boot order, no go. I've changed the BIOS Disc Security check, still no go. (I put that back, after test.) At this point, I've removed the USB drive. I'd just like to get the DVD/CD boot thing working.
I can get to the Windows Advanced options and run the Command Prompt. I can run diskpart. When I do DISKPART> list partition, I only see the normal hard drive. (Disk 0 Online size 698GB Free 0b Dyn =blank and GPT *) The CD/DVD isn't visible there at all.
I'm hoping to boot to the DVD/CD so I can clean up the system so I can then boot to the USB at will. Because the CD is a complete linux implementation, I can't run it from windows explorer. I can see that the CD has a /boot/grub/x86_64-efi directory as well as /EFI/BOOT directory.
Any ideas on how to boot to the CD/DVD? And again, yes, my bios is set to boot to CD/DVD before hard drive. That just doesn't work. Ditto for all of the choices at bootup. No matter what I select Windows 8.1 loads up.
Anybody been here before? Ideas?
What I really want to do is generate a Boot Info Summary like you get from "boot-repair-disk".
tags: GPT