[Users] How to pxeboot ovrit node into memory automatically?

Fabian Deutsch fabiand at redhat.com
Thu Dec 12 15:40:05 UTC 2013


Am Mittwoch, den 11.12.2013, 17:32 -0800 schrieb David Li:
> Hi Fabian,
> 
> I booted the new node stateless. But how can connect to it from ovirt
> engine cli? The cli asks for three things: URL, user name and
> password. I am not sure how to put them on the kernel boot option
> line.
> 
> David
> 
> 
> 

Hey David,

please take a look here to find the correct cmdline:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/Hypervisor_Deployment_Guide/sect-Deployment_Guide-Installing_Red_Hat_Enterprise_Virtualization_Hypervisors-RHEV_Hypervisor_Kernel_Parameters_and_Automated_Installation.html

- fabian

> 
> ______________________________________________________________________
> From: Fabian Deutsch <fabiand at redhat.com>; 
> To: David Li <david_li at sbcglobal.net>; 
> Cc: users at ovirt.org <users at ovirt.org>; 
> Subject: Re: [Users] How to pxeboot ovrit node into memory
> automatically? 
> Sent: Wed, Dec 11, 2013 8:00:40 AM 
> 
> 
> Am Dienstag, den 10.12.2013, 16:00 -0800 schrieb David Li:
> > Hi Fabian,
> > 
> > 
> > Does the stateless ovirt node have the VDSM built-in? 
> 
> Hey David,
> 
> stateless is a feature or a special mode of oVirt Node which is also
> available on the "oVirt Node for oVirt Engine" image [1].
> But please note that you will have to approve the Node in Engine after
> each reboot if you use the stateless feature. This bug [2] might also
> tackle the problem of a stateless Node.
> 
> - fabian
> 
> --
> [1]
> http://resources.ovirt.org/releases/3.3/iso/ovirt-node-iso-3.0.3-1.1.vdsm.fc19.iso
> [2] https://bugzilla.redhat.com/show_bug.cgi?id=875088
> 
> > 
> > David
> > 
> >        
> >
> ______________________________________________________________
> >        From: Fabian Deutsch <fabiand at redhat.com>
> >        To: David Li <david_li at sbcglobal.net> 
> >        Cc: "users at ovirt.org" <users at ovirt.org> 
> >        Sent: Thursday, December 5, 2013 11:47 PM
> >        Subject: Re: [Users] How to pxeboot ovrit node into memory
> >        automatically?
> >        
> >        
> >        Am Donnerstag, den 05.12.2013, 16:30 -0800 schrieb David Li:
> >        > Hi Fabian,
> >        > 
> >        > I think the bad route is a link local route 169.254.0.0/16.
> >        I am not quite sure if it's a real bug but in my case I have
> >        to remove this route.
> >        > Also I am using ramdisk based node without a local disk.
> Can
> >        anything be persisted? 
> >        
> >        Hey David,
> >        
> >        when you refer to stateless mode, then no, nothing can be
> >        persisted.
> >        Regarding the bug - Please provide the whole cmdline you are
> >        using to
> >        boot the node, to give me a chance to reproduce it.
> >        
> >        - fabian
> >        
> >        > David
> >        > 
> >        > 
> >        > 
> >        > ----- Original Message -----
> >        > > From: Fabian Deutsch <fabiand at redhat.com>
> >        > > To: David Li <david_li at sbcglobal.net>
> >        > > Cc: "users at ovirt.org" <users at ovirt.org>
> >        > > Sent: Wednesday, December 4, 2013 11:17 AM
> >        > > Subject: Re: [Users] How to pxeboot ovrit node into
> memory
> >        automatically?
> >        > > 
> >        > > Am Montag, den 02.12.2013, 13:53 -0800 schrieb David Li:
> >        > >>  Hi Fabian,
> >        > >> 
> >        > >>  Everytime the ovirt node boots up, it adds a route
> entry
> >        that I have to 
> >        > > manually remove. Otherwise it messed up my routing. 
> >        > >>  How do I modify the boot scripts to automatically
> remove
> >        it?
> >        > > 
> >        > > Hey David,
> >        > > 
> >        > > could you file a bug for that route problem?
> >        > > 
> >        > > You can try the following workaround:
> >        > > 
> >        > > # Create /etc/rc.d/rc.local with the commands to run
> >        > > $ vi /etc/rc.d/rc.local
> >        > > $ chmod a+x /etc/rc.d/rc.local
> >        > > $ persist /etc/rc.d/rc.local
> >        > > 
> >        > > /etc/rc.d/rc.local should then be run on every boot.
> >        > > 
> >        > > - fabian
> >        > > 
> >        > >>  ----- Original Message -----
> >        > >>  > From: Fabian Deutsch <fabiand at redhat.com>
> >        > >>  > To: David Li <david_li at sbcglobal.net>
> >        > >>  > Cc: "users at ovirt.org" <users at ovirt.org>
> >        > >>  > Sent: Monday, October 28, 2013 7:45 AM
> >        > >>  > Subject: Re: [Users] How to pxeboot ovrit node into
> >        memory 
> >        > > automatically?
> >        > >>  > 
> >        > >>  > Am Montag, den 28.10.2013, 07:42 -0700 schrieb David
> >        Li:
> >        > >>  >> 
> >        > >>  >>  Hi Fabian,
> >        > >>  >> 
> >        > >>  >>  Yes rootpwd worked too! Thanks.
> >        > >>  >> 
> >        > >>  >>  Two new problems:
> >        > >>  >> 
> >        > >>  >>  But I found there is no networking for the
> stateless
> >        node.
> >        > >>  >>  What kernel boot options are used to either use
> DHCP
> >        or 
> >        > > statically 
> >        > >>  > configure the IP address for an interface on the
> node?
> >        > >>  >> 
> >        > >>  >>  I also need to have the sshd enabled. Is there a
> >        kernel option 
> >        > > for that?
> >        > >>  > 
> >        > >>  > Hey David,
> >        > >>  > 
> >        > >>  > here you can find all the supported boot params in
> >        ovirt node:
> >        > >>  > 
> >        > >
> >
> http://gerrit.ovirt.org/gitweb?p=ovirt-node.git;a=blob;f=scripts/ovirt-init-functions.sh.in;h=c4280caefb89c77afc1e8bec8c925aa7f3039733;hb=HEAD#l214
> >        > >>  > 
> >        > >>  > Greetings
> >        > >>  > fabian
> >        > >>  > 
> >        > >>  >>  David
> >        > >>  >> 
> >        > >>  >> 
> >        > >>  >> 
> >        > >>  >>  ----- Original Message -----
> >        > >>  >>  > From: Fabian Deutsch <fabiand at redhat.com>
> >        > >>  >>  > To: David Li <david_li at sbcglobal.net>
> >        > >>  >>  > Cc: "users at ovirt.org" <users at ovirt.org>
> >        > >>  >>  > Sent: Friday, October 25, 2013 9:10 AM
> >        > >>  >>  > Subject: Re: [Users] How to pxeboot ovrit node
> >        into memory 
> >        > >>  > automatically?
> >        > >>  >>  > 
> >        > >>  >>  > Am Freitag, den 25.10.2013, 08:57 -0700 schrieb
> >        David Li:
> >        > >>  >>  >>  Hi Fabian,
> >        > >>  >>  >> 
> >        > >>  >>  >>  That kernel option worked for me!  The node is
> >        booted 
> >        > > up in RAM. 
> >        > >>  > Thanks!
> >        > >>  >>  >> 
> >        > >>  >>  >>  My next question is:
> >        > >>  >>  >> How do I specify the root login and passwd as
> >        boot 
> >        > > parameters? 
> >        > >>  >>  > 
> >        > >>  >>  > Hey David.
> >        > >>  >>  > 
> >        > >>  >>  > Nice that it worked! Were you able to register to
> >        the 
> >        > > Engine?
> >        > >>  >>  > 
> >        > >>  >>  > You can use the adminpw= and rootpw= kernel
> >        arguments to set 
> >        > > 
> >        > >>  > passwords.
> >        > >>  >>  > use
> >        > >>  >>  > $ openssl passwd -salt 42
> >        > >>  >>  > to create one or two passwords
> >        > >>  >>  > 
> >        > >>  >>  > Greetings
> >        > >>  >>  > fabian
> >        > >>  >>  > 
> >        > >>  >>  >>  David
> >        > >>  >>  >> 
> >        > >>  >>  >> 
> >        > >>  >>  >> 
> >        > >>  >>  >> 
> >        > >>  >>  >>  ----- Original Message -----
> >        > >>  >>  >>  > From: Fabian Deutsch <fabiand at redhat.com>
> >        > >>  >>  >>  > To: David Li <david_li at sbcglobal.net>
> >        > >>  >>  >>  > Cc: "users at ovirt.org" 
> >        > > <users at ovirt.org>
> >        > >>  >>  >>  > Sent: Thursday, October 24, 2013 11:47 PM
> >        > >>  >>  >>  > Subject: Re: [Users] How to pxeboot ovrit
> >        node 
> >        > > into memory 
> >        > >>  >>  > automatically?
> >        > >>  >>  >>  > 
> >        > >>  >>  >>  > Am Donnerstag, den 24.10.2013, 16:26 -0700
> >        schrieb 
> >        > > David Li:
> >        > >>  >>  >>  >>  Hi,
> >        > >>  >>  >>  >> 
> >        > >>  >>  >>  >>  I was following the instructions at 
> >        > >>  >>  > http://www.ovirt.org/Node_PXE. My goal 
> >        > >>  >>  >>  > is to use pxeboot (iPXE) to boot the node
> >        entirely 
> >        > > into RAM 
> >        > >>  > with 
> >        > >>  >>  > rootfs. What I 
> >        > >>  >>  >>  > got now is an installation screen which
> >        requires a 
> >        > > local 
> >        > >>  > storage. My 
> >        > >>  >>  > system has 
> >        > >>  >>  >>  > no disk and this doesn't quite work for me. 
> >        > >>  >>  >>  >> 
> >        > >>  >>  >>  >>  What's are the kernel parameters I need 
> >        > > to use to 
> >        > >>  > boot the 
> >        > >>  >>  > node into 
> >        > >>  >>  >>  > RAM automatically?  I am OK as the first step
> >        with 
> >        > > a 
> >        > >>  > stateless node. 
> >        > >>  >>  >>  > 
> >        > >>  >>  >>  > Hey David,
> >        > >>  >>  >>  > 
> >        > >>  >>  >>  > the stateless mode is currently not
> >        completely 
> >        > > working with 
> >        > >>  > oVirt
> >        > >>  >>  >>  > Engine. That means a Node needs to be
> >        approved 
> >        > > each time it 
> >        > >>  > boots into
> >        > >>  >>  >>  > the stateless mode.
> >        > >>  >>  >>  > The stateless mode can be entered by
> >        appending 
> >        > > stateless to 
> >        > >>  > the 
> >        > >>  >>  > default
> >        > >>  >>  >>  > kernel arguments.
> >        > >>  >>  >>  > 
> >        > >>  >>  >>  > Greetings
> >        > >>  >>  >>  > fabian
> >        > >>  >>  >>  > 
> >        > >>  >>  > 
> >        > >>  > 
> >        > > 
> >        
> >        
> >        
> >        
> 
> 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: This is a digitally signed message part
URL: <http://lists.ovirt.org/pipermail/users/attachments/20131212/51ad20e0/attachment-0001.sig>


More information about the Users mailing list