[PVE-User] Problems booting PVE from USB Disk Drive
dietmar at proxmox.com
Fri Jun 12 07:59:53 CEST 2009
You can pass the boot option ‘proxdebug’ – this gives you a shell.
From: pve-user-bounces at pve.proxmox.com [mailto:pve-user-bounces at pve.proxmox.com] On Behalf Of ano-639d60e3 at enterto.com
Sent: Freitag, 12. Juni 2009 07:01
To: pve-user at pve.proxmox.com
Subject: [PVE-User] Problems booting PVE from USB Disk Drive
I seek your help in debugging a boot process that fails. Does PVE have any "cheat codes" like Knoppix offers to manipulate the boot process? Is there any way to pause the boot process so that I may read the console messages to get a sense as to what is going wrong? If nothing else, it would be great to change the retry period to something longer than 5 seconds so that I would be able to scroll back and read the console messages.
I am trying to create a bootable USB hard drive so that I can dual boot Windows and PVE on my laptop. I believe that I need to dual boot rather than run Windows as a guest because I use the laptop for performing and composing music and the device drivers may not work well in a virtual environment. But that may turn out not to be necessary after I conduct some side-by-side performance tests. Until then, I have to use an external device because PVE takes over the entire drive upon which it is installed and so it would clobber my existing Windows.
I installed PVE 1.3 onto the USB drive and the installation appeared to go pretty well. However, when I boot from the USB drive, it eventually aborts with a Kernel panic after attempting to mount /dev/mapper/pve-root on /mnt and gives-up ater 3 tries.
I tried to scroll back to see the console messages but don't get very far in the 5 seconds that PVE gives me between retries. Scolling is no longer possible once the Kernel quits.
Any advice on how to proceed from here would be greatly appreciated. ProxMox is doing a two-phase boot so we should be able to boot from USB devices once we can determine what is going wrong. For anyone interested in learning along with me, here's a link to a good article on booting Linux from external USB and Firewire devices: http://www.ibm.com/developerworks/linux/library/l-fireboot.html?ca=dgr-lnxw09FireBoot
Thanks for your assistance,
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