Re: [Users] Pxeboot

Not sure where the boot log is since I can't login. I got the source from https://github.com/primalmotion/archipel-node and followed the build instructions in http://ovirt.org/wiki/Node_Building maybe I should rebuild the iso from the ovirt node source tree as you have pulled in archipel changes yesterday. How do I do that?

- David >-----Original Message----- >From: Mike Burns [mailto:mburns@redhat.com] >Sent: Thursday, February 09, 2012 7:22 AM >To: Li, David >Cc: Perry Myers; users(a)ovirt.org >Subject: Re: [Users] Pxeboot > >On Thu, 2012-02-09 at 07:06 -0800, Li, David wrote: >> Mike, >> >> I added adminpw as a kernel option. After boot, I tried "admin/abc123" >> and "root/abc123" but not able to login. >> Any idea? >> > >Are there any errors in your build or boot logs? > >Mike > >> David >> >> >> >-----Original Message----- >> >From: Mike Burns [mailto:mburns@redhat.com] >> >Sent: Wednesday, February 08, 2012 6:53 PM >> >To: Li, David >> >Cc: Perry Myers; users(a)ovirt.org >> >Subject: Re: [Users] Pxeboot >> > >> >On Wed, 2012-02-08 at 17:11 -0800, Li, David wrote: >> >> Ok, I built an iso out of archipel and pxebooted it with stateless >> >> option. Now >> >I got a "localhost" login prompt. Any idea what should I put in as user/pwd? >> >> David >> > >> >You will need to pass a password in on the command line as well >> > >> >adminpw=<hashed_password> >> > >> >You can generate the hashed password using: >> > >> >$ openssl passwd >> > >> >Assuming the password was abc123 >> > >> >$ openssl passwd abc123 >> >tKrQfufCbosr6 >> > >> >adminpw=tKrQfufCbosr6 >> > >> >Mike >> > >> >> >> >> >-----Original Message----- >> >> >From: Mike Burns [mailto:mburns@redhat.com] >> >> >Sent: Wednesday, February 08, 2012 4:31 PM >> >> >To: Li, David >> >> >Cc: Perry Myers; users(a)ovirt.org >> >> >Subject: RE: [Users] Pxeboot >> >> > >> >> >On Wed, 2012-02-08 at 15:43 -0800, Li, David wrote: >> >> >> Ok, I think we are on the same page now regarding stateless node. >> >> >> It looks like the achipel diff you just pulled in might be able >> >> >> to do this. But I can't quite make it out what the kernel option should >be. >> >> >> Is it "stateless=1"? >> >> >> >> >> > >> >> >stateless=1 or just stateless, both will work. >> >> > >> >> > >> >> >> David >> >> >> >> >> >> >-----Original Message----- >> >> >> >From: Mike Burns [mailto:mburns@redhat.com] >> >> >> >Sent: Wednesday, February 08, 2012 3:27 PM >> >> >> >To: Li, David >> >> >> >Cc: Perry Myers; users(a)ovirt.org >> >> >> >Subject: Re: [Users] Pxeboot >> >> >> > >> >> >> >On Wed, 2012-02-08 at 15:19 -0800, Li, David wrote: >> >> >> >> Perry, >> >> >> >> >> >> >> >> I am glad you brought this up. >> >> >> >> I 'd be perfectly happy to run the root fs entirely in RAM. >> >> >> >> In fact that would >> >> >> >be ideal for me. It's just I am not quite sure how to use >> >> >> >pxeboot to achieve this. >> >> >> >> >> >> >> >> I am doing a test now using the tftpboot files created from the iso. >> >> >> >> As far as I see, the kernel boot options (pxelinux.cfg/default) has: >> >> >> >> >> >> >> >> root=live:/ovirt-node-image-2.2.2-1.1.fc16.iso >> >> >> >> >> >> >> >> With this I can only pxeboot to the intall screen. What >> >> >> >> should I use to let the >> >> >> >kernel mount the root fs in memory? Something like >root=/dev/ram0? >> >> >> >> >> >> >> >> David >> >> >> > >> >> >> >It's not currently possible with ovirt-node. That's the whole >> >> >> >stateless feature that we outlined. Once we actually have it >> >> >> >implemented, it will be something along the lines of adding >> >> >> >"stateless" to >> >> >the kernel commandline. >> >> >> > >> >> >> >Mike >> >> >> >> >> >> >> >> >> >> >> >> >-----Original Message----- >> >> >> >> >From: Perry Myers [mailto:pmyers@redhat.com] >> >> >> >> >Sent: Wednesday, February 08, 2012 2:54 PM >> >> >> >> >To: Mike Burns >> >> >> >> >Cc: Li, David; users(a)ovirt.org >> >> >> >> >Subject: Re: [Users] Pxeboot >> >> >> >> > >> >> >> >> >On 02/08/2012 05:03 PM, Mike Burns wrote: >> >> >> >> >> On Wed, 2012-02-08 at 13:46 -0800, Li, David wrote: >> >> >> >> >>> Mike, >> >> >> >> >>> >> >> >> >> >>> If I understand this correctly, today I should be able to >> >> >> >> >>> pxeboot and nfs mount the root fs from a remote server. >> >> >> >> >>> Apart from setting up the pxe stuff, I 'd have to >> >> >> >> >>> populate the ovirt node root fs on the server >> >> >> >> >>> - perhaps steal it from a disk install. In other words I >> >> >> >> >>> am concerned about the point from which the kernel starts >> >> >> >> >>> to execute /init script (in the initramfs) to the point >> >> >> >> >>> /init is able to mount the final root fs from a remote server. >> >> >> >> >> >> >> >> >> >> No, there is no way to set this up currently in ovirt-node. >> >> >> >> >> You could install using a remote iscsi lun if you have a >> >> >> >> >> hardware iscsi HBA, but there isn't a way to mount a >> >> >> >> >> remote nfs share as the >> >> >root fs. >> >> >> >> >> >> >> >> >> >> Supporting a remote NFS share as the root fs isn't even >> >> >> >> >> something that requested as an RFE at this point or on the >> >> >> >> >> roadmap as far as I'm aware. >> >> >> >> >> >> >> >> >> >> It sounds like what you're really looking for is a shared >> >> >> >> >> root fs that multiple hosts could use. This is something >> >> >> >> >> that we will probably look into eventually, but it's not >> >> >> >> >> on the immediate >> >> >roadmap. >> >> >> >> > >> >> >> >> >Given that the rootfs of oVirt Node is fairly small and in a >> >> >> >> >truly stateless environment would just run out of system >> >> >> >> >RAM, there's no real reason to try to do a shared NFS based >rootfs. >> >> >> >> >It's an unnecessary complication I think, if the end goal is >> >> >> >> >to move to truly >> >> >> >stateless. >> >> >> >> > >> >> >> >> >For larger systems where the rootfs is on the order of GB's, >> >> >> >> >shared root may make more sense. >> >> >> >> _______________________________________________ >> >> >> >> Users mailing list >> >> >> >> Users(a)ovirt.org >> >> >> >> http://lists.ovirt.org/mailman/listinfo/users >> >> >> > >> >> >> >> >> > >> >> >> >> _______________________________________________ >> >> Users mailing list >> >> Users(a)ovirt.org >> >> http://lists.ovirt.org/mailman/listinfo/users >> > >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >