failed to install as xen guest

[salmon]

Try this one:

kernel = 'hvmloader'
image_name = 'DSS_Install'
vif = ['mac=00:16:3e:1c:e4:56, bridge=xenbr0', 'mac=00:16:3e:33:38:be, bridge=xenbr0', 'mac=00:16:3e:5b:65:24, bridge=xenbr0']
extra = ''
stdvga = 0
disk = ['tap:aio:/VM/images/5277.img,xvda,w', 'tap:aio:/VM/images/storage1.img,xvdb,w', 'tap:aio:/VM/images/storage2.img,xvdc,w']
vncunused = 1
usb = 1
os_version = '0'
on_reboot = 'restart'
on_shutdown = 'destroy'
boot = 'c'
platform = 'xen'
pae = 1
memory = 2048
acpi = 1
ramdisk = ''
os_name = 'Linux'
vnc = 1
vncdisplay = 1
on_crash = 'destroy'
network_mode = 'tap'
apic = 1
sdl = 0
bootloader = ''
name = '5277-loles-1'
shadow_memory = 0
usbdevice = 'tablet'
device_model = 'qemu-dm'
builder = 'hvm'
vcpus = 2
os_flavor = 'Linux'
root = ''

With this config I started more than hundred VMs with DSS. It booted even with 350MB.

[salmon]

I'm using Debian + xen 4.0

[ccrichard]

Hmmm, are you trying to create your own config file? You can just use the gui tools (forgive my guiness) in CentOS. Under Applications system tools there should be a Virtual Machine manager. Also, it could just be your iso image is bad.