Beowulf I/O Errors

Robert Sand rsand at d.umn.edu
Wed Jan 17 07:58:47 EST 2001


Hello,

I think it is about time that Daniel changed the instructions on the web page. 
Here are the instructions you'll need to follow. First you'll have to change the
/etc/beowulf/fstab file to look like this:

/dev/ram3       /       ext2    fs_size=65536   0       0
#/dev/hda1      beoboot         ext2    defaults        0 0
#/dev/hda2       swap            swap    defaults        0 0
#/dev/hda3       /               ext2    defaults        0 0
#none            /proc           proc    defaults        0 0
#none            /dev/pts        devpts  gid=5,mode=620  0 0
#$MASTER:/home   /home           nfs     defaults        0 0


Then you'll need to boot off of the floppy and do the beofdisk, reboot,
beoboot-install.  Before you reboot the last time you'll need to edit your fstab
file again so it looks similar to this:

#/dev/ram3       /       ext2    fs_size=65536   0       0
#/dev/hda1      beoboot         ext2    defaults        0 0
/dev/hda2       swap            swap    defaults        0 0
/dev/hda3       /               ext2    defaults        0 0
none            /proc           proc    defaults        0 0
none            /dev/pts        devpts  gid=5,mode=620  0 0
$MASTER:/home   /home           nfs     defaults        0 0

Then reboot.  I've found that the last node in the cluster always has a problem
booting.  Just givem it some time and it will finally boot.



Matthew Jochum wrote:
> 
> Hello,
>     Sorry to write directly to you instead of the listserv, but everytime
> I post something to the listserv (Beowulf.org) it never gets sent out.
> And I have a one question for you(scyle), and the rest of the Beowulf
> community.  I have other questions, as well, but getting the cluster running
> is my priority for now.
> 
>     Let me give you ( and if you forward this to beowulf.org ) a run down of
> the cluster.  I am keeping it small, just to prove that it works.  Then
> I can build a much larger ( +30 node ) one.
> 
>     HomeNode:    Dell OptiPlex PII-400
>     Node0:            Dell PowerEdge2400  Twin 866 Xeon, lots of ram and
> disk space.
>     I have two other nodes, but I want to get this one up first!
> 
>     First:
>     Installation Question, I have followed the slave node setup proceedure,
> and the machine will not go to the "up" state automatically.   Here is the
> proceedure I used to setup the Node
> 
>         1.    With a blank Harddrive, boot w/ a boot floppy, move from
> unknown to configured node, and click apply.
>         2.    From /usr/lib/beoboot/bin:
>                     beofdisk -q
>                     beofdisk -w
>                     /usr/sbin/beoboot-install 0 /dev/sda
>                     bpctl -S all -s reboot
> 
>                 Have I missed anything?  When the machine reboots, it is
> stuck in the "unavailable" state.
> 
> Thanks,
> Matt
> 
> _______________________________________________
> Beowulf mailing list
> Beowulf at beowulf.org
> http://www.beowulf.org/mailman/listinfo/beowulf

-- 
Robert Sand.
mailto:rsand at d.umn.edu                             US Mail
University of Minnesota Duluth                     10 University Dr.
Information Technology Systems and Services        MWAH 176
144 MWAH                                           Duluth, MN 55812
Phone 218-726-6122        fax 218-726-7674

"Walk behind me I may not lead, Walk in front of me I may not follow,
 Walk beside me and we walk together"  UTE Tribal proverb.

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