From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 13 Apr 2026 16:02:19 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wCHrn-00BjmV-1a for lore@lore.pengutronix.de; Mon, 13 Apr 2026 16:02:19 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1wCHrm-0004Gs-VX for lore@pengutronix.de; Mon, 13 Apr 2026 16:02:19 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=X2qu9UQvKv+LONA/twgiwCdRiOMGg9RCKWLn3jyQkZc=; b=0sz6zG1SkJTZkjvJgttwMFpVOW q15NiPO9J8V+V9rrSY0KvCG9rIkudC9x97eXjAIPHDSJSMzTAQ7xJ5DIyw1UO2jT7P1AKGwHJD0G3 sHNeKFz4aQAvefh2ReoGsMPCkoYo1m0+DP4KPhSEOxzDxR03O2hr4i4Z8ndBIsoBj9LOQOpdHr6Ek W89uTwEvIppR6sHUREpAEQnsCr6BGwqNCKA++b0I49Nel490lsHKQCO8daKvGd3NN1yza6yd7uv3R 4UZQYBkCp3chq0guHrzV7QDk8C2o5NE72MIPi1qMWTOc6Lq96dNied+rsbiXOZk0p8BDUGcclWp9d T5SjLp8Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wCHrJ-0000000Fp7k-07V5; Mon, 13 Apr 2026 14:01:49 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wCHrG-0000000Fp6z-1bz0 for barebox@lists.infradead.org; Mon, 13 Apr 2026 14:01:47 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[127.0.0.1]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1wCHrE-00044N-P7; Mon, 13 Apr 2026 16:01:44 +0200 Message-ID: Date: Mon, 13 Apr 2026 16:01:44 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Alexander Shiyan , Barebox List References: Content-Language: en-US, de-DE, de-BE From: Ahmad Fatoum In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260413_070146_441237_63F6682F X-CRM114-Status: GOOD ( 12.11 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: blspec X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hello Alexander, On 4/10/26 4:02 PM, Alexander Shiyan wrote: > Hello All. > > Can anyone explain how to use the built-in blspec support? > I would like to try setting up booting via exlinux.conf... exlinux.conf and bootloader spec are different formats. Here's a bootloader spec example: $ cat /loader/entries/imx8mp-evk.conf title PTXdist - Pengutronix-DistroKit imx8mp-evk version 6.18 options rootwait linux /boot/Image devicetree /boot/imx8mp-evk.dtb linux-appendroot true You can have multiple files under /loader/entries and barebox will iterate over them, extract the compatible of the referenced devicetree, compare it against its own and then decide what to boot. The linux-appendroot key is barebox-specific and means barebox should fixup root= according to the device it found the bootloader spec file on. This is useful for the case where the bootloader spec files are directly in the rootfs and not in a separate partition. Cheers, Ahmad > > Thanks! > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |