From owner-freebsd-questions@freebsd.org Mon Jan 14 17:41:03 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2799E1481891 for ; Mon, 14 Jan 2019 17:41:03 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6BCB46D78E for ; Mon, 14 Jan 2019 17:41:01 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de ([92.193.226.69]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPA (Nemesis) id 1MQMdz-1gwWNp1AoL-00ML22; Mon, 14 Jan 2019 18:40:52 +0100 Date: Mon, 14 Jan 2019 18:40:51 +0100 From: Polytropon To: Steven Friedrich Cc: freebsd-questions@freebsd.org Subject: Re: clearing screen during boot process Message-Id: <20190114184051.4a58ef9e.freebsd@edvax.de> In-Reply-To: <8763943.RH3biPoPvx@freebsd.friedrich.org> References: <8763943.RH3biPoPvx@freebsd.friedrich.org> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:CNhX9lh1wZLSkKyP9y96Hpnicw45X/QIebXeuxT4RT6JXEbv6Yn VmNAq+jU8IeqBn2rSum+PCiuq3HrmCAqGCiIWjW2E0NKqVBgYikPJr4SqxQ+6DUKjmI7blA 8tPzoAmBlmxa9H0c9ZLbgr3j/9U278mokrL8Ob36JnrVbxIxdeKVb4tosG/SA6Qiz7U7ilg j2G5GrAUyEZKHDu4LEy0Q== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:DmExYWwA54I=:OoAyzMUFHnEM1+6jkeulT5 WMMRV/wMhqPRicQBylMv3pbldkYokYYHU+4TovknUbnhztHfYdiYtabKqJkqg+bc+Hp5Q62qN jjeZa58Nah4XhwYuvHj0z+Ohxmhw2ebmOI19bdZ3GoQPJF9dYxakmuZp/xoX+w6wXiUlnlg9P sk5BzUZJ/WPqOW2jl7TRR+YLVbNF5Tc0xxnnbCTn3Y0dfzm17HQjx7Q6Izz1ifhQLUqas1Bdp mZsqJUTcX98sjSLZkHYlvv7vtNPkc2pRcZzt8QNg27kmZJlga158Q4vao+/otvUUG7hHq3Vgc Fq8y6zEIGye/LAJITS4CxaoI473fgOekGb4R3aj+3e4em3yQFlut+7DloV46iWFLw01JFjlIB G1woITCBGFINQKGKw7W5rH/2w6khsDMdmnBoTw1o3E/b9ESRFoaTGlTHurSS5jNeJ5sZNoJl1 mpu/8on5YbDKHehHdQx6gmnSbYcHv2NG6P4FJz8jRh7xquH3DWEx9h5l2ZdpZKcWHrG5i8lHr FOKi7w/BVDSb+K9Sa8S56bn/jL/Y8+QocYaV744EJl5kpYMBJl4am38CdSUDzz84Y/vMmm6kz oxbqt/ynPXXElts07iJkWYCnrVnS2Q/8jHG65nJh1txXUKmPS2TmQozQ16TpxILUsxs7cMnJ0 yjr1npuEnfFtjPqSQArW91+01h8iRY82UIDJuENGYktCcCCQ9PRd1409mmBn2ckn6wvEiCiHY m2ilZ7CCpm9jHqzpSciI/8HMuHMn/4wdOhMUMsgr1wrIyAA/QatkgYrWYPM= X-Rspamd-Queue-Id: 6BCB46D78E X-Spamd-Bar: ++++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [4.37 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[freebsd@edvax.de]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; HAS_ORG_HEADER(0.00)[]; MX_GOOD(-0.01)[mx01.schlund.de,mx00.schlund.de]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_TO(0.00)[twc.com]; RECEIVED_SPAMHAUS_PBL(0.00)[69.226.193.92.zen.spamhaus.org : 127.0.0.10]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:8560, ipnet:217.72.192.0/20, country:DE]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; ARC_NA(0.00)[]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; NEURAL_SPAM_SHORT(0.68)[0.681,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[edvax.de]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.31)[0.307,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_SPAM_LONG(0.97)[0.971,0]; MID_CONTAINS_FROM(1.00)[]; RCVD_IN_DNSWL_NONE(0.00)[73.192.72.217.list.dnswl.org : 127.0.5.0]; R_SPF_NA(0.00)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[73.192.72.217.rep.mailspike.net : 127.0.0.17]; RCVD_COUNT_TWO(0.00)[2]; IP_SCORE(0.02)[ipnet: 217.72.192.0/20(-0.56), asn: 8560(0.66), country: DE(-0.01)] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Jan 2019 17:41:03 -0000 On Mon, 14 Jan 2019 12:23:46 -0500, Steven Friedrich wrote: > When my system boots, it isues several messages, then clears the screen before > presenting the beastie menu. > > How can I prevent the screen clearing? You probably can't. The reason is that the initial messages ("pre-kernel") are printed during text mode, while the kernel switches to graphics mode (vt) soon. This clears the screen content and replaces the system's text mode output by a graphical output that "mimics" text mode. However, you could try the following: In /boot/loader.conf, set the following: kern.vty="sc" Now you can read the initial messages in text mode (!) by pressing the Scroll Lock key and using the cursor and page keys to move the buffer up to its top where you can read the kernel and "pre-kernel" messages. Keep in mind "startx" (and X in general) won't work with sc anymore, it now _requires_ the use of vt! See "man 4 vt" for details. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...