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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!yarrina.connect.com.au!news.mira.net.au!news.netspace.net.au!serval.net.wsu.edu!netnews.nwnet.net!oracle.pnl.gov!osi-east2.es.net!lll-winken.llnl.gov!ames!hookup!swrinde!howland.reston.ans.net!pipex!sunic!nic.tip.net!palantir.p.tvt.se!pp2.smc.south.telia.se!paul From: paul@pp2.smc.south.telia.se (Paul Pries) Subject: Re: can't mount a sunos4 cd disk using mcd0 Message-ID: <1995Jan12.183445.10711@palantir.p.tvt.se> Sender: news@palantir.p.tvt.se (News account) Organization: Swedish Telecom X-Newsreader: Tin 1.1 PL4 References: <3eud5n$sbp@pdq.coe.montana.edu> Date: Thu, 12 Jan 1995 18:34:45 GMT Lines: 47 nate@bsd.coe.montana.edu (Nate Williams) writes: : In article <3estq0$32t@asia.lm.com>, <ka3ffy@telerama.lm.com> wrote: : >hello, : > : > i have some sun cd's for os 4 and greater. they are ufs format. i : >can't get them to mount. here is one of my tries. i run freebsd. : > : >mount -r -t ufs /dev/mcd0a /cdrom : > : >mount -r /dev/mcd0a /cdrom : : The problem lies in the fact that the byte order is different from a Sun : to a `n x86. This means that everything looks backward to the FreeBSD : FS. And, the reason that byte order switching isn't done automatically : is because of performance issues since every read/write would need to be : checked for byte swapping. : : Anyway, Thor posted about Pace Willison's FS code which did this, so if : you can find it it might be a good place to start. : Most Sun CD's I've got are in ISO-9660 format, and they mount just OK. I have one mounted right now (the Solaris 1.1 CD): (bambam) /home/paul 26 > sudo mount -r -t cd9660 /dev/cd0a /mnt (bambam) /home/paul 27 > ls /mnt _copyright* avail_arches* export/ patches/ sunupgrade/ (bambam) /home/paul 28 > If it is an UFS CD, then you got the byteswap problem. This has hit me too when I tried to mount a floppy newfs'ed on a Sun. Paul. : : Nate : -- : nate@FreeBSD.org | FreeBSD core member and all around tech. : nate@schizo.coe.montana.edu | weenie. : work #: (406) 994-5980 | Got lots of offers for work, now I need to : home #: (406) 586-0579 | decide which job to take. :) -- Paul Pries paul@pp2.smc.south.telia.se