diff options
Diffstat (limited to 'usr.bin/mkimg')
| -rw-r--r-- | usr.bin/mkimg/vhd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/usr.bin/mkimg/vhd.c b/usr.bin/mkimg/vhd.c index 909872d..6860c16 100644 --- a/usr.bin/mkimg/vhd.c +++ b/usr.bin/mkimg/vhd.c @@ -1,5 +1,5 @@ /*- - * Copyright (c) 2014 Marcel Moolenaar + * Copyright (c) 2014, 2015 Marcel Moolenaar * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -120,17 +120,19 @@ vhd_geometry(uint64_t image_size, struct vhd_geom *geom) lba_t imgsz; long cth; + imgsz = image_size / VHD_SECTOR_SIZE; + /* Respect command line options if possible. */ if (nheads > 1 && nheads < 256 && nsecs > 1 && nsecs < 256 && ncyls < 65536) { - geom->cylinders = ncyls; + geom->cylinders = (ncyls != 0) ? ncyls : + imgsz / (nheads * nsecs); geom->heads = nheads; geom->sectors = nsecs; return; } - imgsz = image_size / VHD_SECTOR_SIZE; if (imgsz > 65536 * 16 * 255) imgsz = 65536 * 16 * 255; if (imgsz >= 65535 * 16 * 63) { |
