Changes between Version 2 and Version 3 of Internal/EmulabInEmulab

Timestamp:

Jul 2, 2015 12:47:20 AM (9 years ago)

Author:

sklower

Comment:

One bug got fixed (nodes now get autoloaded with the default OS on build); and the bug with power cycling nodes is moot

Internal/EmulabInEmulab

@@ -65 +65 @@
 You can use firefox with the foxyproxy extension to interact with the web server on the inside as described in:   https://trac.deterlab.net/wiki/ElabElabSshProxy
 
-Even if this all works, there's some stuff that need to be done manually before you can swap an experiment in on the inside
 
-The partition table starts out empty, so you need to do a sched_reload of all the nodes from the inside boss.
+There is still a bug that ought to be fixed - eventually - that used to cause some nodes in an e-in-e to not
+get properly os-loaded.
 
-I agree that I should fix the build scripts to do this, and it probably needs to be the outside boss elabinelab script.
+If a node is sufficiently dicombobulated that the inside boss can't ssh to it, nor send it a ping-of-death,
+as would happen if it started by being powered off for energy savings by the outside boss,
+the inside boss requests the outside boss to power cycle them, which, in the case of nodes using the older serial-controlled RPC power controllers failed because the power cycle command won't work if it is already off.
 
-Another bug that needs to be fixed is that in order to get the nodes on the inside to reload, the inside boss request the outside boss to power cycle them, which, in the case of nodes using the older serial-controlled RPC power controllers fails because the power cycle command won't work if it is already off.
+The bug is that power cycle on this controllers should always work, and this needs to be fixed in {{{boss.isi:/usr/testbed/lib/power_rpc27}}}.
 
-[the bug is that power cycle on this controllers should always work and this needs to be fixed in {{{boss.isi:/usr/testbed/lib/power_rpc27}}}]
+However, Keith says that all of the pc's that used to use serial power controllers are either unracked
+or in hwdead (pc114, pc133) so that this is not currently an issue.  It might be if they get revived for an
+education cluster.
 
 == How It Works, and Exercising a New Version ==