Starting with a CD, dding an image, and then burning the image with cdio, I seem to end up with two extra sectors (from 205105 to 205107). Am I doing something wrong? Is this a bug? This is 4.9 GENERIC.
% sudo disklabel cd0 # /dev/rcd0c: type: ATAPI disk: SOMEDISK label: duid: 0000000000000000 flags: bytes/sector: 2048 sectors/track: 100 tracks/cylinder: 1 sectors/cylinder: 100 cylinders: 2052 total sectors: 205105 boundstart: 0 boundend: 205105 drivedata: 0 16 partitions: # size offset fstype [fsize bsize cpg] a: 205105 0 ISO9660 c: 205105 0 ISO9660 % sudo dd if=/dev/rcd0c of=image.iso count=205105 bs=2048 205105+0 records in 205105+0 records out 420055040 bytes transferred in 134.304 secs (3127626 bytes/sec) % md5 image.iso MD5 (image.iso) = 6be16296d78d8516196b3b127bbe528e % sudo md5 /dev/rcd0c MD5 (/dev/rcd0c) = 6be16296d78d8516196b3b127bbe528e % sudo cdio -f cd0 tao -s 8 msoimage.iso track 01 'd' 00205105/00205105 100% Closing session. % sudo disklabel cd0 # /dev/rcd0c: type: ATAPI disk: SOMEDISK label: duid: 0000000000000000 flags: bytes/sector: 2048 sectors/track: 100 tracks/cylinder: 1 sectors/cylinder: 100 cylinders: 2052 total sectors: 205107 boundstart: 0 boundend: 205107 drivedata: 0 16 partitions: # size offset fstype [fsize bsize cpg] a: 205107 0 ISO9660 c: 205107 0 ISO9660 --TimH
