1. 22 Dec, 2008 1 commit
    • Mike Hibler's avatar
      Hack to support command line arguments to MFS boots: if the "path" column · 32906417
      Mike Hibler authored
      in the os_info row contains a space, everything after the space is considered
      arguments.  Note that these arguments can be overridden by those in the
      nodes table for def_boot and next_boot (but not temp_boot, which has no
      corresponding boot_path and boot_cmd_line fields--something that should be
      fixed, at the same time moving all these *_boot fields into node_attributes
      and out of nodes).
      32906417
  2. 16 Aug, 2007 1 commit
  3. 04 Dec, 2006 1 commit
  4. 20 Jan, 2004 1 commit
    • Leigh Stoller's avatar
      Add back the cache to avoid generating spurious events when bootinfo · 939f72b8
      Leigh Stoller authored
      packets are lost; do not send the events if a node has requested
      bootinfo within the last 10 seconds; this implies that the bootinfo
      reply packet was lost and the node is retrying. This should quiet
      things a bit from stated, although eventually this should be dealt
      with in stated instead of with this hack.
      
      Mac originally added the cache to proxydhcp. I've added a cache to
      bootinfo to solve the same problem (proxydhcp is no longer used),
      although I have changed to implementation to use the DBM backend
      rather then a one-off hash table. dbopen() with a NULL file argument
      creates an in-memory database (no backing store), and I have used the
      DB_HASH db type. So, the hash table is done with a couple of calls to
      DBM routines.
      939f72b8
  5. 12 Jan, 2004 3 commits
    • Leigh Stoller's avatar
      Remove all trace of proxydhcp! · 3f943535
      Leigh Stoller authored
      3f943535
    • Leigh Stoller's avatar
      0d63b396
    • Leigh Stoller's avatar
      Death to proxydhcp; one less specialized daemon. DHCP will return the · 2b2b8ca1
      Leigh Stoller authored
      filename to boot, and all local nodes will boot the same pxeboot kernel,
      which has been extended to allow for jumping directly into a specific MFS
      (in addition to the usual testbed boot into a partition or multiboot
      kernel).
      
      Bootinfo and the bootwhat protocol extended to tell the client node what
      MFS to jump into directly, without a reboot. pxe_boot_path and
      next_pxe_boot_path are now deprecated, with bootinfo used to control which
      MFS to boot. Nodes now boot a single pxeboot kernel, and bootinfo tells
      them what to do next.
      
      Bootinfo greatly simplifed. temp_boot_osid has been added to allow for
      temporary booting of different kernels (such as with ndoe_admin or
      create_image). Unlike next_boot_osid which is a one-shot boot,
      temp_boot_osid causes the node to boot that OS until told not too.
      
      next_boot_path and def_boot_path in the nodes table are now ignored.
      Bootinfo gets path info strictly from the os_info table entry for the osid
      given in one of def_boot_osid, temp_boot_osid, or next_boot_osid.  This
      makes the selection of what to do in bootinfo a lot simpler (and for
      TBBootWhat in libdb). The os_info table also modified to include an MFS
      flag so that bootinfo knows to tell the client that the path refers to an
      MFS and not a multiboot kernel.
      
      Change to boot sequence; free nodes no longer boot into the default OSID.
      Instead, they are told to wait in pxeboot until told what to do, which
      will typically be when the node is allocated and a specific OSID
      picked. If the node needs to be reloaded, then the node is told to jump
      directly into the Frisbee MFS, which saves one complete reboot cycle
      whether the node has the requested OS installed, or not.  New program
      added called "bootinfosend" that is used by node_reboot to "wake up" up
      nodes sitting in pxewait mode, so that they query bootinfo again and boot.
      
      node_reboot changed to look at the event state of a node, and use
      bootinfosend to wake up nodes, rather then power cycle, since pxeboot does
      not repsond to pings. Retry (if the UDP packet is lost) is handled by
      stated.
      
      Event support added to bootinfo, to replace the event generation that was
      in proxydhcp. I have not included the caching that Mac had in proxydhcp
      since it does not appear that bootinfo packets are lost very
      often. Cleaned up all of the event and DB queury code to use lib/libtb for
      DB access, and moved all of the event code into a separate file.  The
      event sequence when a node boots now looks like this:
      
      	'SHUTDOWN'    --> 'PXEBOOTING'  (BootInfo)
      	'PXEBOOTING', --> 'PXEBOOTING'  (BootInfo Retry)
      	'PXEBOOTING', --> 'BOOTING'     (Node Not Free)
      	'PXEBOOTING', --> 'PXEWAIT'     (Node is Free)
      	'PXEWAIT',    --> 'PXEWAKEUP'   (Node Allocated)
      	'PXEWAKEUP',  --> 'PXEWAKEUP'   (Bootinfo Retry)
      	'PXEWAKEUP',  --> 'PXEBOOTING'  (Node Woke Up)
      
      Change stated to support resending PXEWAKEUP events when node times out.
      After 3 tries, node is power cycled. Other minor cleanup in stated.
      
      Clean up and simplify os_select, while adding support for temp_next_boot
      and removing all trace of def_boot_path and next_boot_path processing.
      Remove all pxe_boot_path and next_pxe_boot_path processing.  Changed
      command line interface to support "clearing" fields. For example,
      node_admin changed to call os_select like this to have the node
      temporarily boot the FreeBSD MFS:
      
      	os_select -t FREEBSD-MFS pcXXX
      
      which sets temp_boot_osid. To turn admin mode off:
      
      	os_select -c -t pcXXX
      
      which says to clear temp_boot_osid.
      
      sql/database-fill-supplemental.sql modifed to add os_info table
      entries for the FreeBSD, Frisbee, and newnode MFS's.
      
      Be sure to change dhcpd config, restart dhcp, kill proxydhcp, restart
      bootinfo,
      2b2b8ca1
  6. 20 Sep, 2002 1 commit
  7. 07 Jul, 2002 1 commit
  8. 03 May, 2001 1 commit