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Dermot

2010-Nov-05 14:38 UTC

[Xen-users] Unable to create (and keep) guest

Hi,

Host: CentOS 5.5
Guest: Ubuntu maverick

I am having a horrid time trying to create a guest on my xen machine.

I have tried several method. The method that I have had the most
success with is `xm create`. The problem I have is that once the I
have run:

xm create -c myconfig.cfg install=true
install-mirror=http://mirror.bytemark.co.uk/ubuntu/
install-suite=maverick

and go all the way throught the installation, the guest does not
appear in `xm list`. It appears in the list during the installation
but once the install is complete and I reboot, it never comes back. If
I try to start it with `xm create myconfig.cfg`


#
#  Hostname
#
name        = ''testhost''

#
#  Networking
#
dhcp        = ''dhcp''
vif         = [ ''mac=00:16:3E:1E:65:85'' ]

#
#  Behaviour
#
on_poweroff = ''destroy''
on_reboot   = ''restart''
on_crash    = ''restart''

# Debian Installer specific variables

def check_bool(name, value):
    value = str(value).lower()
    if value in (''t'', ''tr'',
''tru'', ''true''):
        return True
    return False

global var_check_with_default
def var_check_with_default(default, var, val):
    if val:
        return val
    return default

xm_vars.var(''install'', use=''Install Debian, default:
false'', check=check_bool)
xm_vars.var("install-method",
            use=''Installation method to use "cdrom" or
"network"
(default: network)'',
            check=lambda var, val:
var_check_with_default(''network'', var, val))

# install-method == "network"
xm_vars.var("install-mirror",
            use=''Debian mirror to install from (default:
http://archive.ubuntu.com/ubuntu)'',
            check=lambda var, val:
var_check_with_default(''http://archive.ubuntu.com/ubuntu'',
var, val))
xm_vars.var("install-suite",
            use=''Debian suite to install (default: maverick)'',
            check=lambda var, val:
var_check_with_default(''maverick'', var, val))

# install-method == "cdrom"
xm_vars.var("install-media",
            use=''Installation media to use (default: None)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-cdrom-device",
            use=''Installation media to use (default: xvdd)'',
            check=lambda var, val:
var_check_with_default(''xvdd'', var, val))

# Common options
xm_vars.var("install-arch",
            use=''Debian mirror to install from (default:
amd64)'',
            check=lambda var, val:
var_check_with_default(''amd64'', var, val))
xm_vars.var("install-extra",
            use=''Extra command line options (default: None)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-installer",
            use=''Debian installer to use (default: network uses
install-mirror; cdrom uses /install.ARCH)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-kernel",
            use=''Debian installer kernel to use (default: uses
install-installer)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-ramdisk",
            use=''Debian installer ramdisk to use (default: uses
install-installer)'',
            check=lambda var, val: var_check_with_default(None, var, val))

xm_vars.check()

if not xm_vars.env.get(''install''):
    bootloader="pygrub"
elif xm_vars.env[''install-method''] == "network":
    import os.path
    print "Install Mirror: %s" %
xm_vars.env[''install-mirror'']
    print "Install Suite: %s" %
xm_vars.env[''install-suite'']
    if xm_vars.env[''install-installer'']:
        installer = xm_vars.env[''install-installer'']
    else:
        installer
xm_vars.env[''install-mirror'']+"/dists/"+xm_vars.env[''install-suite'']
+
\

"/main/installer-"+xm_vars.env[''install-arch'']+"/current/images"
    print "Installer: %s" % installer

    print
    print "WARNING: Installer kernel and ramdisk are not
authenticated."
    print

    if xm_vars.env.get(''install-kernel''):
        kernelurl = xm_vars.env[''install-kernel'']
    else:
        kernelurl = installer + "/netboot/xen/vmlinuz"

    if xm_vars.env.get(''install-ramdisk''):
        ramdiskurl = xm_vars.env[''install-ramdisk'']
    else:
        ramdiskurl = installer + "/netboot/xen/initrd.gz"

    import urllib
    class MyUrlOpener(urllib.FancyURLopener):
        def http_error_default(self, req, fp, code, msg, hdrs):
            raise IOError("%s %s" % (code, msg))
    urlopener = MyUrlOpener()

    try:
        print "Fetching %s" % kernelurl
        kernel, _ = urlopener.retrieve(kernelurl)
        print "Fetching %s" % ramdiskurl
        ramdisk, _ = urlopener.retrieve(ramdiskurl)
    except IOError, _:
        raise

elif xm_vars.env[''install-method''] == "cdrom":
    arch_path = { ''i386'': "/install.386",
                  ''amd64'': "/install.amd" }

    if xm_vars.env[''install-media'']:
        print "Install Media: %s" %
xm_vars.env[''install-media'']
    else:
        raise OptionError("No installation media given.")

    if xm_vars.env[''install-installer'']:
        installer = xm_vars.env[''install-installer'']
    else:
        installer = arch_path[xm_vars.env[''install-arch'']]

    print "Installer: %s" % installer

    if xm_vars.env.get(''install-kernel''):
        kernelpath = xm_vars.env[''install-kernel'']
    else:
        kernelpath = installer + "/xen/vmlinuz"

    if xm_vars.env.get(''install-ramdisk''):
        ramdiskpath = xm_vars.env[''install-ramdisk'']
    else:
        ramdiskpath = installer + "/xen/initrd.gz"

    disk.insert(0, ''file:%s,%s:cdrom,r'' %
(xm_vars.env[''install-media''],
                                          
xm_vars.env[''install-cdrom-device'']))

    bootloader="/usr/bin/pygrub"
    bootargs="--kernel=%s --ramdisk=%s" % (kernelpath, ramdiskpath)
    print "From CD"
else:
    print "WARNING: Unknown install-method: %s." %
xm_vars.env[''install-method'']

if xm_vars.env.get(''install''):
    # Figure out command line
    if xm_vars.env[''install-extra'']:
        extras=[xm_vars.env[''install-extra'']]
    else:
        extras=[]

    # Reboot will just restart the installer since this file is not
    # reparsed, so halt and restart that way.
    extras.append("debian-installer/exit/always_halt=true")
    extras.append("--")
    extras.append("quiet")

    console="hvc0"
    try:
        if len(vfb) >= 1:
            console="tty0"
    except NameError, e:
        pass
    extras.append("console="+ console)
    extra = str.join(" ", extras)
    print "command line is \"%s\"" % extra

_______________________________________________
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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Boris Derzhavets

2010-Nov-05 16:17 UTC

head link

Re: [Xen-users] Unable to create (and keep) guest

Are you able to create Ubuntu 10.10 HVM guest ?

Boris.

--- On Fri, 11/5/10, Dermot <paikkos@gmail.com> wrote:

From: Dermot <paikkos@gmail.com>
Subject: [Xen-users] Unable to create (and keep) guest
To: xen-users@lists.xensource.com
Date: Friday, November 5, 2010, 10:38 AM

Hi,

Host: CentOS 5.5
Guest: Ubuntu maverick

I am having a horrid time trying to create a guest on my xen machine.

I have tried several method. The method that I have had the most
success with is `xm create`. The problem I have is that once the I
have run:

xm create -c myconfig.cfg install=true
install-mirror=http://mirror.bytemark.co.uk/ubuntu/
install-suite=maverick

and go all the way throught the installation, the guest does not
appear in `xm list`. It appears in the list during the installation
but once the install is complete and I reboot, it never comes back. If
I try to start it with `xm create myconfig.cfg`


#
#  Hostname
#
name        = ''testhost''

#
#  Networking
#
dhcp        = ''dhcp''
vif         = [ ''mac=00:16:3E:1E:65:85'' ]

#
#  Behaviour
#
on_poweroff = ''destroy''
on_reboot   = ''restart''
on_crash    = ''restart''

# Debian Installer specific variables

def check_bool(name, value):
    value = str(value).lower()
    if value in (''t'', ''tr'',
''tru'', ''true''):
        return True
    return False

global var_check_with_default
def var_check_with_default(default, var, val):
    if val:
        return val
    return default

xm_vars.var(''install'', use=''Install Debian, default:
false'', check=check_bool)
xm_vars.var("install-method",
            use=''Installation method to use "cdrom" or
"network"
(default: network)'',
            check=lambda var, val:
var_check_with_default(''network'', var, val))

# install-method == "network"
xm_vars.var("install-mirror",
            use=''Debian mirror to install from (default:
http://archive.ubuntu.com/ubuntu)'',
            check=lambda var, val:
var_check_with_default(''http://archive.ubuntu.com/ubuntu'',
var, val))
xm_vars.var("install-suite",
            use=''Debian suite to install (default: maverick)'',
            check=lambda var, val:
var_check_with_default(''maverick'', var, val))

# install-method == "cdrom"
xm_vars.var("install-media",
            use=''Installation media to use (default: None)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-cdrom-device",
            use=''Installation media to use (default: xvdd)'',
            check=lambda var, val:
var_check_with_default(''xvdd'', var, val))

# Common options
xm_vars.var("install-arch",
            use=''Debian mirror to install from (default:
amd64)'',
            check=lambda var, val:
var_check_with_default(''amd64'', var, val))
xm_vars.var("install-extra",
            use=''Extra command line options (default: None)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-installer",
            use=''Debian installer to use (default: network uses
install-mirror; cdrom uses /install.ARCH)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-kernel",
            use=''Debian installer kernel to use (default: uses
install-installer)'',
            check=lambda var, val: var_check_with_default(None, var, val))
xm_vars.var("install-ramdisk",
            use=''Debian installer ramdisk to use (default: uses
install-installer)'',
            check=lambda var, val: var_check_with_default(None, var, val))

xm_vars.check()

if not xm_vars.env.get(''install''):
    bootloader="pygrub"
elif xm_vars.env[''install-method''] == "network":
    import os.path
    print "Install Mirror: %s" %
xm_vars.env[''install-mirror'']
    print "Install Suite: %s" %
xm_vars.env[''install-suite'']
    if xm_vars.env[''install-installer'']:
        installer = xm_vars.env[''install-installer'']
    else:
        installer
xm_vars.env[''install-mirror'']+"/dists/"+xm_vars.env[''install-suite'']
+
\

"/main/installer-"+xm_vars.env[''install-arch'']+"/current/images"
    print "Installer: %s" % installer

    print
    print "WARNING: Installer kernel and ramdisk are not
authenticated."
    print

    if xm_vars.env.get(''install-kernel''):
        kernelurl = xm_vars.env[''install-kernel'']
    else:
        kernelurl = installer + "/netboot/xen/vmlinuz"

    if xm_vars.env.get(''install-ramdisk''):
        ramdiskurl = xm_vars.env[''install-ramdisk'']
    else:
        ramdiskurl = installer + "/netboot/xen/initrd.gz"

    import urllib
    class MyUrlOpener(urllib.FancyURLopener):
        def http_error_default(self, req, fp, code, msg, hdrs):
            raise IOError("%s %s" % (code, msg))
    urlopener = MyUrlOpener()

    try:
        print "Fetching %s" % kernelurl
        kernel, _ = urlopener.retrieve(kernelurl)
        print "Fetching %s" % ramdiskurl
        ramdisk, _ = urlopener.retrieve(ramdiskurl)
    except IOError, _:
        raise

elif xm_vars.env[''install-method''] == "cdrom":
    arch_path = { ''i386'': "/install.386",
                  ''amd64'': "/install.amd" }

    if xm_vars.env[''install-media'']:
        print "Install Media: %s" %
xm_vars.env[''install-media'']
    else:
        raise OptionError("No installation media given.")

    if xm_vars.env[''install-installer'']:
        installer = xm_vars.env[''install-installer'']
    else:
        installer = arch_path[xm_vars.env[''install-arch'']]

    print "Installer: %s" % installer

    if xm_vars.env.get(''install-kernel''):
        kernelpath = xm_vars.env[''install-kernel'']
    else:
        kernelpath = installer + "/xen/vmlinuz"

    if xm_vars.env.get(''install-ramdisk''):
        ramdiskpath = xm_vars.env[''install-ramdisk'']
    else:
        ramdiskpath = installer + "/xen/initrd.gz"

    disk.insert(0, ''file:%s,%s:cdrom,r'' %
(xm_vars.env[''install-media''],
                                       
   xm_vars.env[''install-cdrom-device'']))

    bootloader="/usr/bin/pygrub"
    bootargs="--kernel=%s --ramdisk=%s" % (kernelpath, ramdiskpath)
    print "From CD"
else:
    print "WARNING: Unknown install-method: %s." %
xm_vars.env[''install-method'']

if xm_vars.env.get(''install''):
    # Figure out command line
    if xm_vars.env[''install-extra'']:
        extras=[xm_vars.env[''install-extra'']]
    else:
        extras=[]

    # Reboot will just restart the installer since this file is not
    # reparsed, so halt and restart that way.
    extras.append("debian-installer/exit/always_halt=true")
    extras.append("--")
    extras.append("quiet")

    console="hvc0"
    try:
        if len(vfb) >= 1:
            console="tty0"
    except NameError, e:
        pass
    extras.append("console="+ console)
    extra = str.join(" ", extras)
    print "command line is \"%s\"" % extra

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users



      

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Dermot

2010-Nov-05 16:27 UTC

head link

Re: [Xen-users] Unable to create (and keep) guest

On 5 November 2010 16:17, Boris Derzhavets <bderzhavets@yahoo.com>
wrote:>
> Are you able to create Ubuntu 10.10 HVM guest ?
>
> Boris.
I haven''t tried...yet but I need this guest to perform as best as it
can so I want to use paravirtualisation if possible.

I think the error from pygrub might be due to the fact that the guest
OS has a single root partition (noswap) and the default is to format
in ext4. From I have read pygrub doesn''t read ext4 partitions yet. I
am stepping through the installation again and will modify the
partition layout.

Will report back.
Dp.

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Boris Derzhavets

2010-Nov-05 18:40 UTC

head link

Re: [Xen-users] Unable to create (and keep) guest

Image device of HVM guest say just /dev/sda(X) may used for immediate load PV
guest
via pygrub. View XenWiki 4.0  Tutorial 1

http://bderzhavets.wordpress.com/2010/04/24/set-up-ubuntu-10-04-server-pv-domu-at-xen-4-0-dom0-pvops-2-6-32-10-kernel-dom0-on-top-of-ubuntu-10-04-server/

Boris.

--- On Fri, 11/5/10, Dermot <paikkos@gmail.com> wrote:

From: Dermot <paikkos@gmail.com>
Subject: Re: [Xen-users] Unable to create (and keep) guest
To: xen-users@lists.xensource.com
Date: Friday, November 5, 2010, 12:27 PM

On 5 November 2010 16:17, Boris Derzhavets <bderzhavets@yahoo.com>
wrote:>
> Are you able to create Ubuntu 10.10 HVM guest ?
>
> Boris.
I haven''t tried...yet but I need this guest to perform as best as it
can so I want to use paravirtualisation if possible.

I think the error from pygrub might be due to the fact that the guest
OS has a single root partition (noswap) and the default is to format
in ext4. From I have read pygrub doesn''t read ext4 partitions yet. I
am stepping through the installation again and will modify the
partition layout.

Will report back.
Dp.

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

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