From owner-freebsd-questions@FreeBSD.ORG Tue Jul 13 10:18:39 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6BDCE16A4CE for ; Tue, 13 Jul 2004 10:18:39 +0000 (GMT) Received: from mail.asarian-host.net (mail.asarian-host.net [194.109.160.70]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9881743D2F for ; Tue, 13 Jul 2004 10:18:38 +0000 (GMT) SRS0=HNpWvz4P=KE=asarian-host.net=admin@asarian-host.net) Comments: To protect the identity of the sender, certain header fields are either not shown, or masked. Anonymous email accounts can be requested by filling in the appropriate form at: https://asarian-host.net/cgi-bin/signup.cgi Received: (from root@localhost) by mail.asarian-host.net (8.12.11/8.12.11) id i6DAIaws045544 for freebsd-questions@freebsd.org; Tue, 13 Jul 2004 12:18:36 +0200 (CEST) (envelope-from admin@asarian-host.net) From: Mark Received-SPF: pass (asarian-host.net: domain of admin@asarian-host.net designates sender IP as SASL permitted sender) Message-Id: <200407131018.I6DAIASL045534@asarian-host.net> Date: Tue, 13 Jul 2004 10:18:36 GMT X-Authenticated-Sender: admin@asarian-host.net X-Trace: Vcv9xuG60+x4rbjeEgb7GxjUVSGHmdbhUbS37znllqaI/SJHXmY4/lhX8wwkS8pL2oMrzWrPteUhB6+22l/b/g== X-Complaints-To: abuse@asarian-host.net X-Abuse-Info: Please be sure to forward a copy of ALL headers, otherwise we are unable to process your complaint Organization: Asarian-host To: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Auth: Asarian-host PGP signature iQEVAwUAQPO2/DFqW1BleBN9AQE3/wf+LzduiYUwtYjqhm+4TrvD9iZ9/3WTjU3S jNon7v0tR5qr54lBVVvur8S55PHfnoySNAwHJzF+zFaylV4oadRbiVfnTnY6gEFN o9ZEmUaHEyuvvzUA2+wgGk2TKRmKz1+5RTCJFv6HrExZVQZxxBVhpjtEgZ7oX2Yg joyoKl05XhPjQ7vpO1hS7W3pYYJe+ZEt7Z1QragZuD3Ncn+87Kz36w7/cyyYge0t KrtxOqT7d6+D+Ghc/u/x9bSeGwBjTuyyJlPH2g5bZ/Idp5HYiwggtP4fzJXdScQf Vszr5EOsjKrIl40cSuEdq7jvQhivnbuaO1Jh+hcNs6YJY8fBj/WBoA== =70AG Subject: Is it safe to keep /kernel.old? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Jul 2004 10:18:39 -0000 Dear people, I have been applying patches over time; and when I recompile the kernel = (4.9R p4), it keeps the old one around. My question is, though, is it = safe to keep /kernel.old? I always keep it around, in case the new = kernel has a problem. And that always seemed like a sensible policy to = me. But what if one of the patches contains an exploitable bug? I run in = securelevel 2, so I am not sure whether users could actually use the old = kernel (once in multi-user mode). Still, I wonder if this concern is = valid at all. Or whether I should perhaps get rid of the old kernel. I appreciate your help, - Mark