Date: Mon, 20 Mar 2017 12:52:54 -0400 From: "James B. Byrne" <byrnejb@harte-lyne.ca> To: freebsd-questions@freebsd.org Subject: Unable to create bootable dvd Message-ID: <047ac23fa90555e1aa298171e6b7d9ad.squirrel@webmail.harte-lyne.ca>
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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
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.
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Harte & Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
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