Path: utzoo!utgpu!watmath!clyde!att!ucbvax!bloom-beacon!husc6!rice!sun-spots-request From: rusty%garnet.Berkeley.EDU@violet.berkeley.edu Newsgroups: comp.sys.sun Subject: Ungraceful shutdowns Message-ID: <8811170428.AA06500@garnet.berkeley.edu> Date: 29 Nov 88 12:35:35 GMT Sender: usenet@rice.edu Organization: Rice University, Houston, Texas Lines: 17 Approved: Sun-Spots@rice.edu Original-Date: Wed, 16 Nov 88 20:28:16 pst X-Sun-Spots-Digest: Volume 7, Issue 28, message 10 of 13 On a Sun 3 I find that the safest way to do an ungraceful shutdown is to do an L1-A to get to the prom monitor and then give it the command g0. This causes the system to (1) panic ("panic: 0"), (2) sync the disks, (3) dump all of ram out to the disk for savecore to retrieve when the system reboots, (4) reboot. Step 3 takes long enough that at that point you can do another L1-A to prevent it from rebooting, and shut off the power. I don't know what a g0 does on a Sun 4 or a Sun 2.