Date: Mon, 20 Mar 2017 13:32:36 -0500 (CDT) From: "Valeri Galtsev" <galtsev@kicp.uchicago.edu> To: byrnejb@harte-lyne.ca, freebsd-questions@freebsd.org Subject: Re: Unable to create bootable dvd Message-ID: <58649.128.135.52.6.1490034756.squirrel@cosmo.uchicago.edu> In-Reply-To: <58D01D4A.9070301@gmail.com> References: <047ac23fa90555e1aa298171e6b7d9ad.squirrel@webmail.harte-lyne.ca> <58D01D4A.9070301@gmail.com>
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On Mon, March 20, 2017 1:19 pm, Ernie Luzar wrote: > James B. Byrne via freebsd-questions wrote: >> I have downloaded FreeBSD-11.0-RELEASE-amd64-dvd1.iso. >> >> I have verified the sha512 hash: >> FreeBSD-11.0-RELEASE-amd64-dvd1.iso: OK >> >> I have checked that the ISO is bootable: >> file /var/data/disk_images/FreeBSD/FreeBSD-11.0-RELEASE-amd64-dvd1.iso >> >> /var/data/disk_images/FreeBSD/FreeBSD-11.0-RELEASE-amd64-dvd1.iso: ISO >> 9660 CD-ROM filesystem data '11_0_RELEASE_P1_AMD64_DVD' (bootable) >> >> However, no matter what technique I use I cannot obtain a bootable DVD >> from this image, or any other FreeBSD provided ISO file either. >> >> growisofs -speed=1 -dvd-compat -Z >> /dev/sr0=/var/data/disk_images/FreeBSD/FreeBSD-11.0-RELEASE-amd64-dvd1.iso My hunch is: option "-dvd-compat" screws things up making it not bootable. That option is only relevant to creation of video DVD ROMs (main goal of it is re-arrange the track so that table of contents files are the first onces along the track - which is necessary in stand alone DVD players). I do use this command all the time to burn bootable media (FreeBSD, CentOS, Debian, Ubuntu...) and all of them work well for me. I do not use "-speed" option, but it shouldn't matter, and using slowest speed as you specify may help getting best possible quality of burn result. Anyway, here is command line from my command history: growisofs -Z /dev/dvd=/data/system-media/debian-8.6.0-amd64-i386-netinst.iso I hope, this helps. Valeri >> fdisk -l /dev/sr0 >> . . . a long long time - >> fdisk -l /dev/sr0 >> Note: sector size is 2048 (not 512) >> >> Disk /dev/sr0: 2930 MB, 2930409472 bytes >> 255 heads, 63 sectors/track, 89 cylinders >> Units = cylinders of 16065 * 2048 = 32901120 bytes >> Sector size (logical/physical): 2048 bytes / 2048 bytes >> I/O size (minimum/optimal): 2048 bytes / 2048 bytes >> Disk identifier: 0x00000000 >> >> Now, to verify the software and dvd drive that I am using for this I >> created a dvd from a CentOS-6.7 image. This works fine. >> >> fdisk -l /dev/sr0 >> Note: sector size is 2048 (not 512) >> >> Disk /dev/sr0: 1991 MB, 1991245824 bytes >> 64 heads, 32 sectors/track, 474 cylinders >> Units = cylinders of 2048 * 2048 = 4194304 bytes >> Sector size (logical/physical): 2048 bytes / 2048 bytes >> I/O size (minimum/optimal): 2048 bytes / 2048 bytes >> Disk identifier: 0x75c649ae >> >> Device Boot Start End Blocks Id System >> /dev/sr0p1 * 1 1899 7778304 17 Hidden >> HPFS/NTFS >> Partition 1 has different physical/logical endings: >> phys=(1023, 63, 32) logical=(1898, 63, 32) >> >> >> SO, what is going on? What is different about the FreeBSD ISO that >> prevents it from creating a bootable DVD, >> >> >> I have tried this on A CentOS-8 linus host and a Windows7Pro host and >> cannot obtain a bootable DVD. I can create bootable DVD from the >> CentOS ISO on both. >> >> > > > I use this command > cdrecord -v -eject -sao -overburn FreeBSD-11.0-RELEASE-amd64-disc1.iso > > To get this command issue "pkg install cdrtools" > > . > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
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