From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6696398247980695552 X-Received: by 2002:a05:600c:228c:: with SMTP id 12mr6493098wmf.91.1559129354284; Wed, 29 May 2019 04:29:14 -0700 (PDT) X-BeenThere: isar-users@googlegroups.com Received: by 2002:a5d:644c:: with SMTP id d12ls436974wrw.10.gmail; Wed, 29 May 2019 04:29:13 -0700 (PDT) X-Google-Smtp-Source: APXvYqzNsymki0em7qhNOyZVaRpq68kWSM8Ck8rdidvTKzrii/IBarpt6rhIj7A7on+M7nXv+3Yo X-Received: by 2002:adf:83c5:: with SMTP id 63mr52591469wre.33.1559129353775; Wed, 29 May 2019 04:29:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559129353; cv=none; d=google.com; s=arc-20160816; b=KfBI3F6cAr1cD0aMrRmWJgHmSexdBwNuJiJoihLW/Akghu1u7NM+1KFwQ5/Z/D2nQq /0EFKPjef98pg0XXHmSAn8ozCXwsoYCNIEUiiLZhd15oR84Jpcr2rgsFXVjV1tS8UbcY XqelZm6DEkI/DM7S57lFObu/TtpylfN+4ZiiSeUx6buEeXDaA7ReGY6pRXLvjX7U3Nwo tt/btWB7jMuhtN1LOjxtxewe+SjNu1QE+HiM71GpVVIAgNp2PgIuWPrCtOMHkn1xE/1d 0EjT9Oixgu4C43q2Ojq4PowZnyWAf45cgUj4+yREvM8qlxR7L5tBwWoN+Q8UxSQR3dli NmQQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject; bh=gRmO7lxq1a473i6yOKfx0ZXImjjJZnq8ErXKzOz/toU=; b=sArCnE33n8vFKlKshm28nYkdzIceYxQ3c85+IkjJMRKwgd+pAMyImyCDP8k/uaUck3 gaS7WxDbBf+7+zrkyrmNS4YVOZ+X8lXjPGJnu9lLFckPyZ96KjaUpwWUX8Rjyf1IKV6/ /FnE3rTqqUcObStuPF72kn8+1Xa7bavDRW8Gmi2XYpHaVmpwkkLW7lfch3MiAjKGaUBR F8KAbtVdTSoHwvuobVwssMUtUTthZmsashmamhCoKqKoUZ+sOXr5t10j571rbYazFJDd nW/PJORL9ruuVSm4yefugrZEszPmXrm0eakmWywETmTzDp8V16WeY7f8TGv6WqoGfbEI lIvg== ARC-Authentication-Results: i=1; gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 194.138.37.39 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Return-Path: Received: from lizzard.sbs.de (lizzard.sbs.de. [194.138.37.39]) by gmr-mx.google.com with ESMTPS id f8si210217wre.0.2019.05.29.04.29.13 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 May 2019 04:29:13 -0700 (PDT) Received-SPF: pass (google.com: domain of jan.kiszka@siemens.com designates 194.138.37.39 as permitted sender) client-ip=194.138.37.39; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 194.138.37.39 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Received: from mail1.sbs.de (mail1.sbs.de [192.129.41.35]) by lizzard.sbs.de (8.15.2/8.15.2) with ESMTPS id x4TBTDEw030526 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 29 May 2019 13:29:13 +0200 Received: from [139.23.126.142] ([139.23.126.142]) by mail1.sbs.de (8.15.2/8.15.2) with ESMTP id x4TBTCGf030621; Wed, 29 May 2019 13:29:13 +0200 Subject: Re: [RFC PATCH 1/1] add minimization image extension To: "[ext] Henning Schild" , "[ext] claudius.heine.ext@siemens.com" Cc: isar-users@googlegroups.com, Claudius Heine References: <20190529104506.10508-1-claudius.heine.ext@siemens.com> <20190529104506.10508-2-claudius.heine.ext@siemens.com> <20190529132215.09f61932@md1za8fc.ad001.siemens.net> From: Jan Kiszka Message-ID: Date: Wed, 29 May 2019 13:29:11 +0200 User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 In-Reply-To: <20190529132215.09f61932@md1za8fc.ad001.siemens.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TUID: wyeJBFmfz3Er On 29.05.19 13:22, [ext] Henning Schild wrote: > Hey, > > looks good! I once had something similar but much less flexible in a > transient packages somehwere, uninstalling apt and removing a ton of > files. > > I did use "ncdu" to identify files to look at. And there is > https://wiki.debian.org/ReduceDebian with some more ideas. > > I guess one additional harsh but effective step could be deleting kernel > modules and rebuilding depmod. And if an initrd is used, rebuild that > as well. Well, kernel modules is a topic for custom kernels - if you customize, you don't need to delete. But deleting initrds is indeed a nice reusable pattern. Most systems with custom kernels have no need for them anyway. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux