Date: Sun, 14 Jul 2002 10:40:11 -0700 From: Adam Weinberger <adam@vectors.cx> To: Rob <listone@deathbeforedecaf.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: FFS on CD-ROM - can it be done? Message-ID: <20020714174010.GE83258@vectors.cx> In-Reply-To: <004a01c22b31$1b706da0$a4b826cb@goo> References: <004a01c22b31$1b706da0$a4b826cb@goo>
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easiest way to get stuff on a cd is with mkisofs(8) from ports/sysutils/mkisofs. with what you've used, you can read from the disk raw, like dd if=/dev/racd1c of=file.iso or just cp /dev/acd1c . check out http://www.freebsd.org/doc/handbook/creating-cds.html nice domain name ::) -Adam >> (07.14.2002 @ 0522 PST): Rob said, in 1.6K: << > Wise Ones, > > I'm trying to put a FFS filesystem on CD-ROM. My current attempt builds > a virtual filesystem with vnconfig + disklabel + newfs, then writes the image > file using burncd. I end up with something that half works - df and fsdb can > see the filesystem, but ffsinfo and mount can't. > > # mount -r /dev/acd1c /mnt > mount: /dev/acd1c on /mnt: incorrect super block > # df -h /dev/acd1c > Filesystem Size Used Avail Capacity Mounted on > /dev/acd1c 678M 256M 368M 41% > # ffsinfo /dev/acd1c > ffsinfo: partition is unavailable > # fsdb -r /dev/acd1c > ** /dev/acd1c (NO WRITE) > > CANNOT READ: BLK 2048 > CONTINUE? yes > > THE FOLLOWING DISK SECTORS COULD NOT BE READ: > Examining file system `/dev/acd1c' > Last Mounted on /var/spool/cdrom-images/mount > current inode: directory > I=2 MODE=40755 SIZE=512 > MTIME=Jul 6 16:17:23 2002 [0 nsec] > CTIME=Jul 6 16:17:23 2002 [0 nsec] > ATIME=Jul 6 16:23:36 2002 [0 nsec] > OWNER=root GRP=wheel LINKCNT=5 FLAGS=0 BLKCNT=2 GEN=baec144 > fsdb (inum: 2)> q > > An exchange on the NetBSD/Sparc list a couple of years ago[1] mentioned that > their CD-ROM driver doesn't actually read the disklabel but returns a > hardcoded ISO layout. On the other hand, Solaris CDs can be partitioned like > normal disks (the Software CD has 1 UFS slice and several HSFS slices). Does > FreeBSD support non-standard CD layouts? > > Thanks for the help > Rob. > > > > [1] http://www.netsys.com/netbsd-port-sparc/1999/04/msg00080.html > > -- > Trust the Computer. The Computer is your friend. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > >> end of "FFS on CD-ROM - can it be done?" from Rob << -- "Oh good, my dog found the chainsaw." -Lilo Adam Weinberger adam@vectors.cx http://www.crackula.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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