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Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE |
Date: |
Mon, 09 Jan 2012 10:10:14 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111104 Red Hat/3.1.16-2.el6_1 Thunderbird/3.1.16 |
Hi,
> I'm not sure what a SCSI rom would do with a CD drive. My guess is
> that it wouldn't map it to a BIOS visible drive id at all, as there's
> no way to select an id with any assurance that it wont conflict with
> one chosen by the BIOS or another rom. If QEMU can simulate this (and
> someone knows the command-line to do such) it would be an interesting
> test to see what the rom does.
The lsi rom (8xx_64.rom) seems to prioritize cdroms. Maybe that is
something configurable in the option rom setup. When a cdrom drive with
a bootable cd inserted is present the boot looks like this:
=======================================================================
SeaBIOS (version 0.6.1.2-20120105_124702-rincewind.home.kraxel.org)
iPXE v1.0.0-591-g7aee315
iPXE (http://ipxe.org) 00:03.0 CB00 PCI2.10 PnP PMM+1FFD9190+1FF99190 CB00
LSI Logic Corp. Symbios SDMS (TM) V4.0 PCI SCSI BIOS, PCI Rev. 2.0, 2.1
Copyright 1995-2001 LSI Logic Corp.
PCI-4.19.00
HBA ID LUN VENDOR PRODUCT REV SYNC WIDE CYL/ HD/SEC
--- -- --- -------- ---------------- ---- ----- ---- ------------
0 0 0 QEMU QEMU HARDDISK 1.0. NO 8 1024/255/63
0 1 0 QEMU QEMU HARDDISK 1.0. NO 8 1008/ 33/63
0 4 0 QEMU QEMU CD-ROM 1.0. NO 8
0 7 0 LSILogic 53C895A 0000 10.0 8
LSI Logic Corp. PCI boot ROM successfully installed!
Press F12 for boot menu.
Select boot device:
1. #28 ID04 LUN0 QEMU QEMU CD-ROM
2. USB Drive USB Flash Disk 2.00
3. iPXE (PCI 00:03.0)
=======================================================================
whereas without bootable cd (drive still present but no disk inserted)
the boot menu looks like this:
=======================================================================
Select boot device:
1. #28 ID00 LUN0 QEMU QEMU HARDDISK
2. USB Drive USB Flash Disk 2.00
3. iPXE (PCI 00:03.0)
4. #28 ID01 LUN0 QEMU QEMU HARDDISK
=======================================================================
cheers,
Gerd
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, (continued)
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/06
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gleb Natapov, 2012/01/08
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/08
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gleb Natapov, 2012/01/08
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/08
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/25
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE,
Gerd Hoffmann <=
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Kevin O'Connor, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/07
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/08
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerd Hoffmann, 2012/01/05
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/05
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerd Hoffmann, 2012/01/05
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerhard Wiesinger, 2012/01/05
- Re: [Qemu-devel] Boot order problem and disable iPXE/gPXE, Gerd Hoffmann, 2012/01/05