Hi, schatzclan wrote: > unexpectedly larger > actual file size (642M) vs reported size (613M) for the “i386 8.x.0 LXDE > CD#1” iso.
This is explainable from the difference of programmer's MiB and IEC's MB: 642.0 / 1024 / 1024 * 1000 * 1000 = 612.2589111328125 > The “i386 8.5.0 XFCE CD#1” ISO image mounted cleanly on the mac laptop Is this the "1997-vintage" machine ? (Or is it a third machine standing by ?) > "i386 8.6.0 DVD 1" ISO image - iso was damaged although checked OK via MD5, Most probably not by transport. After all it is very unlikely to get the same MD5 by accident. > nor would it mount on a Mac Laptop [...] > Could it be that the hybrid CD/USB iso is causing problems? A while ago, there was a discussion here https://lists.debian.org/debian-cd/2011/04/msg00029.html Start of thread https://lists.debian.org/debian-cd/2011/04/msg00038.html "snow leopard [...] The following disk image could not be opened: debian-6.0.1a-i386-DVD-1.iso - no mountable file systems" https://lists.debian.org/debian-cd/2011/04/msg00042.html "I do confirm that after removing the isohybrid of the image, I am able to mount it." The mountable ISO was made from the not mountable one by: dd if=/dev/zero bs=2K count=16 >test_image.iso dd if=/dvdbuffer/debian-6.0.1a-i386-DVD-1.iso bs=2K skip=16 >>test_image.iso (The result won't boot from USB stick, of course.) --------------------------------------------------------------------- The only difference i can spot between isohybrid equipment of debian-8.5.0-i386-lxde-CD-1.iso.1 and debian-8.6.0-i386-DVD-1.iso is the size of the ISOs and the fact that the DVD image has no consistent Cylinder/Head/Sectors geometry. I now repacked debian-8.6.0-i386-DVD-1.iso by xorriso-1.4.6 (as of Sid) and got consistent CHS geometry (238 heads/cyl, 32 secs/head). Repacking to "test.iso" was done by: mount debian-8.6.0-i386-DVD-1.iso /mnt/iso xorriso -as mkisofs \ -o test.iso \ -V 'Debian 8.6.0 i386 1' \ --modification-date='2016091713290100' \ -isohybrid-mbr --interval:local_fs:0s-15s:zero_mbrpt,zero_gpt,zero_apm:'debian-8.6.0-i386-DVD-1.iso' \ -partition_cyl_align off \ -partition_offset 0 \ -apm-block-size \ -c '/isolinux/boot.cat' \ -b '/isolinux/isolinux.bin' \ -no-emul-boot -boot-load-size 4 -boot-info-table \ -eltorito-alt-boot \ -e '/boot/grub/efi.img' \ -no-emul-boot -isohybrid-gpt-basdat -isohybrid-apm-hfsplus \ /mnt/iso Have a nice day :) Thomas
