Plop Forum

General Category => Boot Managers => Topic started by: Icecube on June 10, 2010, 23:33:27 PM

Title: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: Icecube on June 10, 2010, 23:33:27 PM
PLoP v5.0.10 can't boot qemu CDROM drive.

When selecting CDROM from the PLoP menu:
QuoteLOADING CDROM DRIVER
QEMU DVD-ROM
WAITNG FOR THE DRIVE
CD NOT BOOTABLE
But the CD (no-emulation ISO with ISOLINUX) boots fine when I boot it normally in qemu.

It works fine, when I try this in VirtualBox.
Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: Elmar on June 10, 2010, 23:54:15 PM
Quote from: Icecube on June 10, 2010, 23:33:27 PM
PLoP v5.0.10 can't boot qemu CDROM drive.

yes, i know. its not only a problem of 5.0.10. no 5.0.x version does work. vmware doesn't work too. it's strange. i never had any problem with real hardware. i tried to find the problem many times, but without success.

regards
elmar
Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: MedEvil on June 14, 2010, 16:21:54 PM
I tryed using plop to boot a BootCD in the U3 CDROM part of my stick. Didn't work.
BIOS alone can do it.

:cheers:

Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: Elmar on June 14, 2010, 18:57:29 PM
Quote from: MedEvil on June 14, 2010, 16:21:54 PM
I tryed using plop to boot a BootCD in the U3 CDROM part of my stick. Didn't work.
BIOS alone can do it.

what is a u3 cdrom part?
Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: MedEvil on June 14, 2010, 20:34:55 PM
A U3 USB-Stick presents itself as two devices. Or more precisely as a USB-Hub with two devices connected to it. A CDROM Drive and a UFD.

I put a PE into the virtual CDROM Drive and expected Plop to ask me, which device to boot from, like my BIOS, but plop didn't.
After choosing USB, it just ran, like there was only one USB device connected and then desplayed: "Invalid system disk".

My guess is, that it went straight for the virtual UFD.
No idea, why it ignored the virtual CDROM completely.

regards MedEvil

Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: Elmar on June 14, 2010, 20:39:53 PM
cdroms over usb and usb hubs (emulated or real hardware) are not supported. iceqube is talkig about the ide cdrom of qemu
Title: Re: PLoP v5.0.10 can't boot qemu CDROM drive
Post by: MedEvil on June 15, 2010, 19:24:32 PM
Sorry, my mistake.
I only ever use plop for USB-booting and made wrongly the assumption Icecube would too.

:cheers: