From nobody Wed Sep 13 23:59:57 2023 X-Original-To: questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4RmHWr6wwcz4tXby for ; Thu, 14 Sep 2023 00:00:24 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mout.kundenserver.de", Issuer "Telekom Security ServerID OV Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4RmHWr3MDzz4ZyX for ; Thu, 14 Sep 2023 00:00:24 +0000 (UTC) (envelope-from freebsd@edvax.de) Authentication-Results: mx1.freebsd.org; none Received: from terra.edvax.de ([178.5.235.137]) by mrelayeu.kundenserver.de (mreue011 [213.165.67.97]) with ESMTPSA (Nemesis) id 1N5FtF-1rhe5y2MAn-011FEV; Thu, 14 Sep 2023 02:00:15 +0200 Received: from r56.edvax.de (r56 [10.200.1.11]) (authenticated bits=0) by terra.edvax.de (8.17.1/8.17.1) with ESMTPA id 38E0024c072058; Thu, 14 Sep 2023 02:00:02 +0200 (CEST) (envelope-from freebsd@edvax.de) Date: Thu, 14 Sep 2023 01:59:57 +0200 From: Polytropon To: Andrea Venturoli Cc: questions@freebsd.org Subject: Re: Mount bzip2 disk image Message-Id: <20230914015957.9f0f5782.freebsd@edvax.de> In-Reply-To: <5f5b50e2-5f0e-3e86-973c-269e7cc8726d@netfence.it> References: <96ce2d8b-f310-96bc-394c-007541401c57@fjl.co.uk> <78bc91f8-665d-5ecc-4867-ba53f6291603@fjl.co.uk> <5f5b50e2-5f0e-3e86-973c-269e7cc8726d@netfence.it> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:EBllS42Mz45/U1HH0v1pixgyDMIoz4+3+r+735XYOKFzwHGGEqh 67A/XxzkwunjfBVpuHlsYPpBxm7kmcEBsigB+Q+vo64srTl4rXrrKsd+aRoGBcV6sCHiZxy GgopqsTXBrEwI3xLVcj8PJU7C146xcc+9Sfp8Y7ahGrUjqBI4ZWOP+NyNX3n0QRfGIX1+iA BuISddCRMsQkPmdxxQIdg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:GCfgbKB/mE0=;TP8ZbpgzA87Y2jYX2uzHzuzZ5v7 WBB+d7nftT1WvwQK/n7drzkdUZ60ddX/Go1nysDZJxGBNEWTRnji9ZQf2tCxbb6nhZYGkXVax FMu7Y1lN7KMkm7r+zhbYt516+X7WY75lnv1d3HpAelmX32R5TkbFZqpZ72golxd3b0GQiio5h fdC52BURY6dJOhIGXtF2L2Dg6CLG25b32Wj70eWskffcdpF3F8qjWiUM7UxoR/ruwxK6+Sxqd DXY6d9NpOk94MtBObIowa9FS9qPjtP138iUTEjI7vTtaRtC4BA4HRXJbiEOXCAEbd2cViVfgI UWS7NeWUtyvCFEWFWAw2VCF88MO4PqcR4lfRRI7LEpbXcHJfWhZzhxg3XoY4jjcW4xPEF+rIC cARXYDH5+5ol6PhbZxqJmbrl3XITokR1bPdCnthrlsSEmT+HxFvORi/SyxODxTk0AbHSHqmAy tB9WCwGW7Sxm01rIoOWZMbMG8Xzm1jj9x/Kv0qzNyV2uT5OgbkPGco+Gd/tDiCOvHhcfSxx6K VM2A6Aelhh76JcHpBafJzTo//7NX83P+/9Uf3b1LuzNkAQOErs91sqeelL5Zxrjhc/40uIlCC 8QPEAi2Mv0g7P2pyOGmfwlEOf/RERwCahx6J/oALhLYXPW6mMD7MU9swjpK9d5jssw0X849pl 5UxkrgAPOblt7E4+37SSn3sADczh92u9kwyiZmzdy14JFsexu5mKDkGfy5YMyr0b+Bijnk3gQ ZrW/Ut4wKJsMTH1gf1+hEsRw1rsgeCBuMdNr1u6EGYvMUXxb9kzsXmE5Tm9qLNzcRXj/p1fvQ h/8RuY61Tn5uU5L1VNeCmacLlik7se1nhLXU9/oYdjr+kNuUlUq7DZ8GEmTSkedYIfmb1H1hI n3ph/M9j13Ppjqw== X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE] X-Rspamd-Queue-Id: 4RmHWr3MDzz4ZyX On Wed, 13 Sep 2023 17:01:36 +0200, Andrea Venturoli wrote: > On 9/13/23 15:28, Frank Leonhardt wrote: > > > The rest of the paragraph explains this would be decompressing the bzip2 > > image from tape (or other offline stream), so the actual disk space > > would be about the same as having the bzip2 file on DASD. > > I'm not sure I understand what you mean... > I have no tape. DASD = Direct Access Storage Device, i. e., disks or SSDs, also known as on-line storage ("D U,DASD,ONLINE", if you wish). Yes, I am old. ;-) Tape is sequential access. In FreeBSD, see da* and sa* devices, speaking the SCSI language. > I only have internal HD storage, where the bzip2 image is and where I > could decompress it (provided enough space would be free). Do you have the change to temporarily add a sufficiently big external disk, even if it's just a cheap 5 TB USB disk? It won't be fast (as it's the speed limit of USB), but you could then use the image file in the mentioned way of vnode (mdconfig + mount -o ro + cp + umount), and afterwards you have a nice big disk - a DASD - to your disposal... :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...