Hello Ryan, There is "Node Options->Edit Node Info->Def Boot OS:ADMIN-LINUX" on the webpage, so that I can boot my node into linux admin MFS successfully. You can refer to my attached picture. Thanks a lot. Then, is there any instruction on how to customize node image under linux admin MFS? I attempted to load a FSD6.4 image into node, but it fails. ******************************* boss# sudo ssh pc1 imageunzip -s 1 - /dev/$DSK < /usr/testbed/images/FBSD64-GENERIC.ndz Could not get the entire DOS label Failed to read MBR ******************************* Best Regards, Cheng Cui . Frey Computing Services Center . Baton Rouge, LA 70803 -----Original Message----- From: Cheng Cui [mailto:ccui1@tigers.lsu.edu] Sent: Sunday, November 01, 2009 12:02 PM To: 'Ryan Jackson' Cc: 'Testbed-admins@flux.utah.edu' Subject: RE: [Testbed-admins] Booting error in Customizing the Generic Image Hello Ryan, For your previous email, yes, I am using a remote VGA console just for test. So the VGA mode is applicable. I have re-downloaded your new tarball, removed the serial terminal part of all the grub.cfg, and redistributed them in /tftpboot. By the way, the path of several kernel files including Frisbee should be changed under /tftpboot/, I have already modified them both within grub.cfg and the MySQL database, e.g. the table 'node_type_attributes'. However, the booting default image failed. Please refer to my attached pictures. In the grub menu, it does not response to the "Emulab Boot". Do I miss something? Thanks a lot. Best Regards, Cheng Cui . Frey Computing Services Center . Baton Rouge, LA 70803 -----Original Message----- From: 'Ryan Jackson' [mailto:rdjackso@flux.utah.edu] Sent: Sunday, November 01, 2009 12:30 AM To: Cheng Cui Cc: Testbed-admins@flux.utah.edu Subject: Re: [Testbed-admins] Booting error in Customizing the Generic Image * 'Ryan Jackson' <rdjackso@flux.utah.edu> [091031 23:18]: > * 'Ryan Jackson' <rdjackso@flux.utah.edu> [091030 17:46]: > > * Cheng Cui <ccui1@tigers.lsu.edu> [091030 17:13]: > > > Yes, it works. Now, I can see the grub prompt. Thanks very much. > > > However, how could I boot the admin MFS and then customize the node > > > image? It looks this linux based pxeboot a little bit different from the > > > FreeBSD based one, at least the admin MFS cannot be loaded > > > automatically. > > > > Actually you shouldn't normally see a grub prompt, but you should see > > some output besides that initial message from Grub. The fact that > > you're not implies that something is wrong somewhere. Once everything > > is working, the Linux MFS will load automatically. > > > > Was the picture you sent earlier of a serial console or some sort of > > remote-console application? I'm not sure what kind of machine you're > > working with, so it would help to know something about it. > > Try this: > > Move the grub.cfg file back to where it was before, then comment out > the first three lines of the file (the lines starting with 'terminal' > and 'serial'). Try booting grub again and tell me if you get any > output. > > If this works, you will also need to change the kernel command lines > in /tftpboot/frisbee_linux/grub.cfg and > /tftpboot/admin_linux/grub.cfg. Delete the part that says > 'console=ttyS0,115200' to force the output to go to the VGA console. It seems I forgot a file in the tarball I uploaded last week. I've replaced the tarball with a fixed version. Download http://www.emulab.net/downloads/linux_boot.tar.gz again and re-extract the linux_mfs.tar.gz tarball. One of the grub config files needed to boot was missing from this tarball, which may explain some of your problems.
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