problem creating a new domain

problem creating a new domain

[Sanjay Kumar]

Hi Folks,
I am using xen1.2.
I create the disk image as described in the Xen2.0 user manual chapter 5.

#dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
#losetup /dev/loop1 vm1disk
#mkfs -t ext3 /dev/loop1
#mount /dev/loop1 /mnt

#cp -ax /<directory>/  /mnt/         /* I do this instead of copying the 
whole / directory because I don't want some of the directories in Dom 1 */

I modify /mnt/etc/fstab to put /dev/sda1 to root

# umount /dev/loop1

then I put this line in /etc/xc/defaults  (I used a copy of it called dom1)

vbd_list = [ ('phy:loop1','sda1','w' ) ]


After this I try to create the dom1 by saying but I get an error.

#xc_dom_create.py   -D vmid=1 -f dom1
Parsing config file 'dom1'
VM image           : "/boot/xenolinux.gz"
VM ramdisk         : ""
VM memory (MB)     : "64"
VM IP address(es)  : "130.207.98.36; 169.254.1.1"
VM block device(s) : "phy:loop1,sda1,w"
VM cmdline         : 
"ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:off 
root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
Error looking up phy:loop1


Can someone please help me with this error?

Thanks,
Sanjay





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Re: problem creating a new domain

[M.A. Williamson]

> Hi Folks,
> I am using xen1.2.
> I create the disk image as described in the Xen2.0 user manual chapter 5.

Sorry but that won't work :-(

Xen 1.2 can only export sections of physical disks (e.g. partitions, whole 
disks, or Xen Virtual Disks) to other domains. If you want to store 
filesystems in disk files, you should move to Xen 2.0-beta (soon to be Xen 
2.0-release).

The nearest you can get on Xen 1.2 is to create a Virtual Disk and then use 
that. Tying yourself to 1.2 is probably not a good idea though - Virtual 
Disks aren't supported by 2.0. We'd certainly prefer people to move to 2.0 
now - it's stable and virtually release-ready and has a whole load of new 
features, improved tools and better hardware support.

A good way to install a new domain's filesystem is using debootstrap (as 
described in the appendix of the manual).

Let us know how you get on.

HTH,
Mark

> #dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
> #losetup /dev/loop1 vm1disk
> #mkfs -t ext3 /dev/loop1
> #mount /dev/loop1 /mnt
> 
> #cp -ax /<directory>/  /mnt/         /* I do this instead of copying the 
> whole / directory because I don't want some of the directories in Dom 1 */
> 
> I modify /mnt/etc/fstab to put /dev/sda1 to root
> 
> # umount /dev/loop1
> 
> then I put this line in /etc/xc/defaults (I used a copy of it called 
> dom1)
> 
> vbd_list = [ ('phy:loop1','sda1','w' ) ]
> 
> 
> After this I try to create the dom1 by saying but I get an error.
> 
> #xc_dom_create.py   -D vmid=1 -f dom1
> Parsing config file 'dom1'
> VM image           : "/boot/xenolinux.gz"
> VM ramdisk         : ""
> VM memory (MB)     : "64"
> VM IP address(es)  : "130.207.98.36; 169.254.1.1"
> VM block device(s) : "phy:loop1,sda1,w"
> VM cmdline         : 
> "ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:off 
> root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
> Error looking up phy:loop1
> 
> 
> Can someone please help me with this error?
> 
> Thanks,
> Sanjay
> 
> 
> 
> 
> 
> ------------------------------------------------------- This SF.net 
> email is sponsored by: IT Product Guide on ITManagersJournal Use IT 
> products in your business? Tell us what you think of them. Give us Your 
> Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more 
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> _______________________________________________ Xen-devel mailing list 
> Xen-devel@lists.sourceforge.net 
> https://lists.sourceforge.net/lists/listinfo/xen-devel


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Re: problem creating a new domain

[Sanjay Kumar]

Hi Mark,
I switched to Xen2.0 with linux 2.4.27 kernel for dom0

now I create the virtual disk in the same way as I described below.

now when I try to boot another domain i see problems with DHCP. below are
the logs

Using config file "/etc/xen/dom1".
Started domain ExampleDomain, console on port 9609
************ REMOTE CONSOLE: CTRL-] TO QUIT ********
Linux version 2.4.27-xenU (root@andrea) (gcc version 3.1.1) #3 Tue Oct 19
13:56:24 EDT 2004
On node 0 totalpages: 16384
zone(0): 4096 pages.
zone(1): 12288 pages.
zone(2): 0 pages.
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/hda1 ro 4
Initializing CPU#0
Xen reported: 2193.379 MHz processor.
Calibrating delay loop... 4404.01 BogoMIPS
Memory: 62768k/65536k available (1341k kernel code, 2768k reserved, 267k
data, 60k init, 0k highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
CPU: L1 I cache: 12K, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Intel(R) Pentium(R) 4 CPU 2.20GHz stepping 04
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Event-channel device installed.
Xen virtual console successfully installed as tty
Starting Xen Balloon driver
pty: 256 Unix98 ptys configured
[XEN] Initialising virtual block device driver
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
SCSI subsystem driver Revision: 1.00
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
[XEN] Initialising virtual ethernet driver.
[XEN] Netfront recovered tx=0 rxfree=0
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
Sending DHCP requests .......  timed out

Here Sending DHCP requests keep timing out and it keeps retrying. so boot
doesn't proceed beyond this point.

Can anybody please let me know what I might be doing wrong.

Thanks,
Sanjay


----------------------------------
http://www.cc.gatech.edu/~ksanjay/

On Mon, 18 Oct 2004, M.A. Williamson wrote:

> > Hi Folks,
> > I am using xen1.2.
> > I create the disk image as described in the Xen2.0 user manual chapter 5.
>
> Sorry but that won't work :-(
>
> Xen 1.2 can only export sections of physical disks (e.g. partitions, whole
> disks, or Xen Virtual Disks) to other domains. If you want to store
> filesystems in disk files, you should move to Xen 2.0-beta (soon to be Xen
> 2.0-release).
>
> The nearest you can get on Xen 1.2 is to create a Virtual Disk and then use
> that. Tying yourself to 1.2 is probably not a good idea though - Virtual
> Disks aren't supported by 2.0. We'd certainly prefer people to move to 2.0
> now - it's stable and virtually release-ready and has a whole load of new
> features, improved tools and better hardware support.
>
> A good way to install a new domain's filesystem is using debootstrap (as
> described in the appendix of the manual).
>
> Let us know how you get on.
>
> HTH,
> Mark
>
> > #dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
> > #losetup /dev/loop1 vm1disk
> > #mkfs -t ext3 /dev/loop1
> > #mount /dev/loop1 /mnt
> >
> > #cp -ax /<directory>/  /mnt/         /* I do this instead of copying the
> > whole / directory because I don't want some of the directories in Dom 1 */
> >
> > I modify /mnt/etc/fstab to put /dev/sda1 to root
> >
> > # umount /dev/loop1
> >
> > then I put this line in /etc/xc/defaults (I used a copy of it called
> > dom1)
> >
> > vbd_list = [ ('phy:loop1','sda1','w' ) ]
> >
> >
> > After this I try to create the dom1 by saying but I get an error.
> >
> > #xc_dom_create.py   -D vmid=1 -f dom1
> > Parsing config file 'dom1'
> > VM image           : "/boot/xenolinux.gz"
> > VM ramdisk         : ""
> > VM memory (MB)     : "64"
> > VM IP address(es)  : "130.207.98.36; 169.254.1.1"
> > VM block device(s) : "phy:loop1,sda1,w"
> > VM cmdline         :
> > "ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:off
> > root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
> > Error looking up phy:loop1
> >
> >
> > Can someone please help me with this error?
> >
> > Thanks,
> > Sanjay
> >
> >
> >
> >
> >
> > ------------------------------------------------------- This SF.net
> > email is sponsored by: IT Product Guide on ITManagersJournal Use IT
> > products in your business? Tell us what you think of them. Give us Your
> > Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more
> > http://productguide.itmanagersjournal.com/guidepromo.tmpl
> > _______________________________________________ Xen-devel mailing list
> > Xen-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/xen-devel
>


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Re: problem creating a new domain

[Matthieu PATOU]

add the parameter (ip "off") in your domain configuration file 
it will add the parameter ip=off on the kernel boot line and so everything
will be ok

mat
On October 19, 11:34 pm Sanjay Kumar <ksanjay@cc.gatech.edu> wrote:
> Hi Mark,
> I switched to Xen2.0 with linux 2.4.27 kernel for dom0
>
> now I create the virtual disk in the same way as I described below.
>
> now when I try to boot another domain i see problems with DHCP. below are
> the logs
>
> Using config file "/etc/xen/dom1".
> Started domain ExampleDomain, console on port 9609
> ************ REMOTE CONSOLE: CTRL-] TO QUIT ********
> Linux version 2.4.27-xenU (root@andrea) (gcc version 3.1.1) #3 Tue Oct 19
> 13:56:24 EDT 2004
> On node 0 totalpages: 16384
> zone(0): 4096 pages.
> zone(1): 12288 pages.
> zone(2): 0 pages.
> Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/hda1 ro 4
> Initializing CPU#0
> Xen reported: 2193.379 MHz processor.
> Calibrating delay loop... 4404.01 BogoMIPS
> Memory: 62768k/65536k available (1341k kernel code, 2768k reserved, 267k
> data, 60k init, 0k highmem)
> Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
> Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
> Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> CPU: L1 I cache: 12K, L1 D cache: 8K
> CPU: L2 cache: 512K
> CPU: Intel(R) Pentium(R) 4 CPU 2.20GHz stepping 04
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Starting kswapd
> Journalled Block Device driver loaded
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> Event-channel device installed.
> Xen virtual console successfully installed as tty
> Starting Xen Balloon driver
> pty: 256 Unix98 ptys configured
> [XEN] Initialising virtual block device driver
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: loaded (max 8 devices)
> SCSI subsystem driver Revision: 1.00
> kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
> kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
> [XEN] Initialising virtual ethernet driver.
> [XEN] Netfront recovered tx=0 rxfree=0
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind 8192)
> Sending DHCP requests .......  timed out
>
> Here Sending DHCP requests keep timing out and it keeps retrying. so boot
> doesn't proceed beyond this point.
>
> Can anybody please let me know what I might be doing wrong.
>
> Thanks,
> Sanjay
>
>
> ----------------------------------
> http://www.cc.gatech.edu/~ksanjay/
>
> On Mon, 18 Oct 2004, M.A. Williamson wrote:
>
> > >  Hi Folks,
> > >  I am using xen1.2.
> > >  I create the disk image as described in the Xen2.0 user manual
> > chapter 5.
> >  Sorry but that won't work :-(
> >
> >  Xen 1.2 can only export sections of physical disks (e.g. partitions,
> >  whole disks, or Xen Virtual Disks) to other domains. If you want to
> >  store filesystems in disk files, you should move to Xen 2.0-beta
> >  (soon to be Xen 2.0-release).
> >
> >  The nearest you can get on Xen 1.2 is to create a Virtual Disk and
> >  then use that. Tying yourself to 1.2 is probably not a good idea
> >  though - Virtual Disks aren't supported by 2.0. We'd certainly prefer
> >  people to move to 2.0 now - it's stable and virtually release-ready
> >  and has a whole load of new features, improved tools and better
> > hardware support.
> >  A good way to install a new domain's filesystem is using debootstrap
> >  (as described in the appendix of the manual).
> >
> >  Let us know how you get on.
> >
> >  HTH,
> >  Mark
> >
> > >  #dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
> > >  #losetup /dev/loop1 vm1disk
> > >  #mkfs -t ext3 /dev/loop1
> > >  #mount /dev/loop1 /mnt
> > >
> > >  #cp -ax /<directory>/  /mnt/         /* I do this instead of
> > >  copying the whole / directory because I don't want some of the
> > > directories in Dom 1 */
> > >  I modify /mnt/etc/fstab to put /dev/sda1 to root
> > >
> > >  # umount /dev/loop1
> > >
> > >  then I put this line in /etc/xc/defaults (I used a copy of it called
> > >  dom1)
> > >
> > >  vbd_list = [ ('phy:loop1','sda1','w' ) ]
> > >
> > >
> > >  After this I try to create the dom1 by saying but I get an error.
> > >
> > >  #xc_dom_create.py   -D vmid=1 -f dom1
> > >  Parsing config file 'dom1'
> > >  VM image           : "/boot/xenolinux.gz"
> > >  VM ramdisk         : ""
> > >  VM memory (MB)     : "64"
> > >  VM IP address(es)  : "130.207.98.36; 169.254.1.1"
> > >  VM block device(s) : "phy:loop1,sda1,w"
> > >  VM cmdline         :
> > >  "ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:off
> > >  root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
> > >  Error looking up phy:loop1
> > >
> > >
> > >  Can someone please help me with this error?
> > >
> > >  Thanks,
> > >  Sanjay
> > >
> > >
> > >
> > >
> > >
> > >  ------------------------------------------------------- This SF.net
> > >  email is sponsored by: IT Product Guide on ITManagersJournal Use IT
> > >  products in your business? Tell us what you think of them. Give us
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> > >  out more http://productguide.itmanagersjournal.com/guidepromo.tmpl
> > >  _______________________________________________ Xen-devel mailing
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> > >  https://lists.sourceforge.net/lists/listinfo/xen-devel
> >
>
>
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Re: problem creating a new domain

[Sanjay Kumar]

Hi Matthieu,
Will this ip="off" option disable the network connection?
When I tried to boot new domain with the ip="off" option,
the DHCP problem went away and it reported that various devices (e.g. NIC,
Graphics card etc.) have been removed from the system (I am using the same
disk image as dom0 but with xenU kernel).
further down the boot processes, some of my network services (e.g
NFS) don't work.

any ideas?


----------------------------------
http://www.cc.gatech.edu/~ksanjay/

On Wed, 20 Oct 2004, Matthieu PATOU wrote:

> add the parameter (ip "off") in your domain configuration file
> it will add the parameter ip=off on the kernel boot line and so everything
> will be ok
> mat
> On October 19, 11:34 pm Sanjay Kumar <ksanjay@cc.gatech.edu> wrote:
> > Hi Mark,
> > I switched to Xen2.0 with linux 2.4.27 kernel for dom0
> >
> > now I create the virtual disk in the same way as I described below.
> >
> > now when I try to boot another domain i see problems with DHCP. below are
> > the logs
> >
> > Using config file "/etc/xen/dom1".
> > Started domain ExampleDomain, console on port 9609
> > ************ REMOTE CONSOLE: CTRL-] TO QUIT ********
> > Linux version 2.4.27-xenU (root@andrea) (gcc version 3.1.1) #3 Tue Oct 19
> > 13:56:24 EDT 2004
> > On node 0 totalpages: 16384
> > zone(0): 4096 pages.
> > zone(1): 12288 pages.
> > zone(2): 0 pages.
> > Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/hda1 ro 4
> > Initializing CPU#0
> > Xen reported: 2193.379 MHz processor.
> > Calibrating delay loop... 4404.01 BogoMIPS
> > Memory: 62768k/65536k available (1341k kernel code, 2768k reserved, 267k
> > data, 60k init, 0k highmem)
> > Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
> > Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
> > Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> > Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
> > Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> > CPU: L1 I cache: 12K, L1 D cache: 8K
> > CPU: L2 cache: 512K
> > CPU: Intel(R) Pentium(R) 4 CPU 2.20GHz stepping 04
> > POSIX conformance testing by UNIFIX
> > Linux NET4.0 for Linux 2.4
> > Based upon Swansea University Computer Society NET3.039
> > Initializing RT netlink socket
> > Starting kswapd
> > Journalled Block Device driver loaded
> > Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> > Event-channel device installed.
> > Xen virtual console successfully installed as tty
> > Starting Xen Balloon driver
> > pty: 256 Unix98 ptys configured
> > [XEN] Initialising virtual block device driver
> > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> > loop: loaded (max 8 devices)
> > SCSI subsystem driver Revision: 1.00
> > kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
> > kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
> > [XEN] Initialising virtual ethernet driver.
> > [XEN] Netfront recovered tx=0 rxfree=0
> > NET4: Linux TCP/IP 1.0 for NET4.0
> > IP Protocols: ICMP, UDP, TCP
> > IP: routing cache hash table of 512 buckets, 4Kbytes
> > TCP: Hash tables configured (established 4096 bind 8192)
> > Sending DHCP requests .......  timed out
> >
> > Here Sending DHCP requests keep timing out and it keeps retrying. so boot
> > doesn't proceed beyond this point.
> >
> > Can anybody please let me know what I might be doing wrong.
> >
> > Thanks,
> > Sanjay
> >
> >
> > ----------------------------------
> > http://www.cc.gatech.edu/~ksanjay/
> >
> > On Mon, 18 Oct 2004, M.A. Williamson wrote:
> >
> > > >  Hi Folks,
> > > >  I am using xen1.2.
> > > >  I create the disk image as described in the Xen2.0 user manual
> > > chapter 5.
> > >  Sorry but that won't work :-(
> > >
> > >  Xen 1.2 can only export sections of physical disks (e.g. partitions,
> > >  whole disks, or Xen Virtual Disks) to other domains. If you want to
> > >  store filesystems in disk files, you should move to Xen 2.0-beta
> > >  (soon to be Xen 2.0-release).
> > >
> > >  The nearest you can get on Xen 1.2 is to create a Virtual Disk and
> > >  then use that. Tying yourself to 1.2 is probably not a good idea
> > >  though - Virtual Disks aren't supported by 2.0. We'd certainly prefer
> > >  people to move to 2.0 now - it's stable and virtually release-ready
> > >  and has a whole load of new features, improved tools and better
> > > hardware support.
> > >  A good way to install a new domain's filesystem is using debootstrap
> > >  (as described in the appendix of the manual).
> > >
> > >  Let us know how you get on.
> > >
> > >  HTH,
> > >  Mark
> > >
> > > >  #dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
> > > >  #losetup /dev/loop1 vm1disk
> > > >  #mkfs -t ext3 /dev/loop1
> > > >  #mount /dev/loop1 /mnt
> > > >
> > > >  #cp -ax /<directory>/  /mnt/         /* I do this instead of
> > > >  copying the whole / directory because I don't want some of the
> > > > directories in Dom 1 */
> > > >  I modify /mnt/etc/fstab to put /dev/sda1 to root
> > > >
> > > >  # umount /dev/loop1
> > > >
> > > >  then I put this line in /etc/xc/defaults (I used a copy of it called
> > > >  dom1)
> > > >
> > > >  vbd_list = [ ('phy:loop1','sda1','w' ) ]
> > > >
> > > >
> > > >  After this I try to create the dom1 by saying but I get an error.
> > > >
> > > >  #xc_dom_create.py   -D vmid=1 -f dom1
> > > >  Parsing config file 'dom1'
> > > >  VM image           : "/boot/xenolinux.gz"
> > > >  VM ramdisk         : ""
> > > >  VM memory (MB)     : "64"
> > > >  VM IP address(es)  : "130.207.98.36; 169.254.1.1"
> > > >  VM block device(s) : "phy:loop1,sda1,w"
> > > >  VM cmdline         :
> > > >  "ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:off
> > > >  root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
> > > >  Error looking up phy:loop1
> > > >
> > > >
> > > >  Can someone please help me with this error?
> > > >
> > > >  Thanks,
> > > >  Sanjay
> > > >
> > > >
> > > >
> > > >
> > > >
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Re: problem creating a new domain

[Matthieu PATOU]

Why do you mean by "have been removed" ?
I use a lightweight kernel for xenU so it might be why i don't see message
about device removed....

Have you try to connect to the domain console ? (xm console <domain_name>) ?
If so can you check your network configuration ... what are the network
service messages ? 

Is your ip not duplicated ?
for your information my kernel command line is the following ... and
everything is ok ...


Kernel command line:  ip=off root=/dev/hdb1 ro

Mat
On October 20, 9:27 pm Sanjay Kumar <ksanjay@cc.gatech.edu> wrote:
> Hi Matthieu,
> Will this ip="off" option disable the network connection?
> When I tried to boot new domain with the ip="off" option,
> the DHCP problem went away and it reported that various devices (e.g.
> NIC, Graphics card etc.) have been removed from the system (I am using
> the same disk image as dom0 but with xenU kernel).
> further down the boot processes, some of my network services (e.g
> NFS) don't work.
>
> any ideas?
>
>
> ----------------------------------
> http://www.cc.gatech.edu/~ksanjay/
>
> On Wed, 20 Oct 2004, Matthieu PATOU wrote:
>
> >  add the parameter (ip "off") in your domain configuration file
> >  it will add the parameter ip=off on the kernel boot line and so
> >  everything will be ok
> >  mat
> >  On October 19, 11:34 pm Sanjay Kumar <ksanjay@cc.gatech.edu> wrote:
> > >  Hi Mark,
> > >  I switched to Xen2.0 with linux 2.4.27 kernel for dom0
> > >
> > >  now I create the virtual disk in the same way as I described below.
> > >
> > >  now when I try to boot another domain i see problems with DHCP.
> > >  below are the logs
> > >
> > >  Using config file "/etc/xen/dom1".
> > >  Started domain ExampleDomain, console on port 9609
> > >  ************ REMOTE CONSOLE: CTRL-] TO QUIT ********
> > >  Linux version 2.4.27-xenU (root@andrea) (gcc version 3.1.1) #3 Tue
> > >  Oct 19 13:56:24 EDT 2004
> > >  On node 0 totalpages: 16384
> > >  zone(0): 4096 pages.
> > >  zone(1): 12288 pages.
> > >  zone(2): 0 pages.
> > >  Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/hda1 ro 4
> > >  Initializing CPU#0
> > >  Xen reported: 2193.379 MHz processor.
> > >  Calibrating delay loop... 4404.01 BogoMIPS
> > >  Memory: 62768k/65536k available (1341k kernel code, 2768k reserved,
> > >  267k data, 60k init, 0k highmem)
> > >  Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
> > >  Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
> > >  Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> > >  Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
> > >  Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> > >  CPU: L1 I cache: 12K, L1 D cache: 8K
> > >  CPU: L2 cache: 512K
> > >  CPU: Intel(R) Pentium(R) 4 CPU 2.20GHz stepping 04
> > >  POSIX conformance testing by UNIFIX
> > >  Linux NET4.0 for Linux 2.4
> > >  Based upon Swansea University Computer Society NET3.039
> > >  Initializing RT netlink socket
> > >  Starting kswapd
> > >  Journalled Block Device driver loaded
> > >  Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> > >  Event-channel device installed.
> > >  Xen virtual console successfully installed as tty
> > >  Starting Xen Balloon driver
> > >  pty: 256 Unix98 ptys configured
> > >  [XEN] Initialising virtual block device driver
> > >  RAMDISK driver initialized: 16 RAM disks of 4096K size 1024
> > >  blocksize loop: loaded (max 8 devices)
> > >  SCSI subsystem driver Revision: 1.00
> > >  kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno =
> > >  2 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno
> > >  = 2 [XEN] Initialising virtual ethernet driver.
> > >  [XEN] Netfront recovered tx=0 rxfree=0
> > >  NET4: Linux TCP/IP 1.0 for NET4.0
> > >  IP Protocols: ICMP, UDP, TCP
> > >  IP: routing cache hash table of 512 buckets, 4Kbytes
> > >  TCP: Hash tables configured (established 4096 bind 8192)
> > >  Sending DHCP requests .......  timed out
> > >
> > >  Here Sending DHCP requests keep timing out and it keeps retrying.
> > >  so boot doesn't proceed beyond this point.
> > >
> > >  Can anybody please let me know what I might be doing wrong.
> > >
> > >  Thanks,
> > >  Sanjay
> > >
> > >
> > >  ----------------------------------
> > >  http://www.cc.gatech.edu/~ksanjay/
> > >
> > >  On Mon, 18 Oct 2004, M.A. Williamson wrote:
> > >
> > > > >   Hi Folks,
> > > > >   I am using xen1.2.
> > > > >   I create the disk image as described in the Xen2.0 user manual
> > > >  chapter 5.
> > > >   Sorry but that won't work :-(
> > > >
> > > >   Xen 1.2 can only export sections of physical disks (e.g.
> > > >   partitions, whole disks, or Xen Virtual Disks) to other domains.
> > > >   If you want to store filesystems in disk files, you should move
> > > >   to Xen 2.0-beta (soon to be Xen 2.0-release).
> > > >
> > > >   The nearest you can get on Xen 1.2 is to create a Virtual Disk
> > > >   and then use that. Tying yourself to 1.2 is probably not a good
> > > >   idea though - Virtual Disks aren't supported by 2.0. We'd
> > > >   certainly prefer people to move to 2.0 now - it's stable and
> > > >   virtually release-ready and has a whole load of new features,
> > > >  improved tools and better hardware support.
> > > >   A good way to install a new domain's filesystem is using
> > > >   debootstrap (as described in the appendix of the manual).
> > > >
> > > >   Let us know how you get on.
> > > >
> > > >   HTH,
> > > >   Mark
> > > >
> > > > >   #dd if=/dev/zero of=vm1disk         bs=1k seek=6144k  count=1
> > > > >   #losetup /dev/loop1 vm1disk
> > > > >   #mkfs -t ext3 /dev/loop1
> > > > >   #mount /dev/loop1 /mnt
> > > > >
> > > > >   #cp -ax /<directory>/  /mnt/         /* I do this instead of
> > > > >   copying the whole / directory because I don't want some of the
> > > > >  directories in Dom 1 */
> > > > >   I modify /mnt/etc/fstab to put /dev/sda1 to root
> > > > >
> > > > >   # umount /dev/loop1
> > > > >
> > > > >   then I put this line in /etc/xc/defaults (I used a copy of it
> > > > >   called dom1)
> > > > >
> > > > >   vbd_list = [ ('phy:loop1','sda1','w' ) ]
> > > > >
> > > > >
> > > > >   After this I try to create the dom1 by saying but I get an
> > > > > error.
> > > > >   #xc_dom_create.py   -D vmid=1 -f dom1
> > > > >   Parsing config file 'dom1'
> > > > >   VM image           : "/boot/xenolinux.gz"
> > > > >   VM ramdisk         : ""
> > > > >   VM memory (MB)     : "64"
> > > > >   VM IP address(es)  : "130.207.98.36; 169.254.1.1"
> > > > >   VM block device(s) : "phy:loop1,sda1,w"
> > > > >   VM cmdline         :
> > > > >   "ip=130.207.98.36:169.254.1.0:130.207.98.1:255.255.255.0::eth0:
> > > > > off
> > > > >   root=/dev/sda1 ro 4 VMID=1 usr=/dev/sda6"
> > > > >   Error looking up phy:loop1
> > > > >
> > > > >
> > > > >   Can someone please help me with this error?
> > > > >
> > > > >   Thanks,
> > > > >   Sanjay
> > > > >
> > > > >
> > > > >
> > > > >
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Re: problem creating a new domain

[Ian Pratt]

> Will this ip="off" option disable the network connection?

No, assuming you configure networking within your rc scripts,
either by DHCP or an ifcfg-eth0 file.

> > When I tried to boot new domain with the ip="off" option,
> > the DHCP problem went away and it reported that various devices (e.g.
> > NIC, Graphics card etc.) have been removed from the system (I am using
> > the same disk image as dom0 but with xenU kernel).
> > further down the boot processes, some of my network services (e.g
> > NFS) don't work.

In the xenU kernel you don't see the real hardware devices --
you have the virtual netfront and blkfront devices. Either hit
'remove' in kudzu a few times or just disable kudzu altogether --
it's generally no use in an unprivileged domain.

Ian


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