wo...@planix.ca ("Greg A. Woods") writes:
> } else if (vnd->sc_size >= (32 * 64)) {
> /*
>- * Size must be at least 2048 DEV_BSIZE blocks
>- * (1M) in order to use this geometry.
>+ * The file's size must be at least 2048 DEV_BSIZE
>+ * blocks (1M) in order to use this (fake) geometry.
>+ *
>+ * XXX why ever use this arbitrary fake setup instead
>of the next????
A cylinder size of 1 (sector) results in large cylinder numbers that
may exceed some limit or make things inefficient.
>+ /*
>+ * n.b.: this will round the disk's size up to an even cylinder
>+ * amount, but (if it is writeable) writing into the partly
>+ * empty cylinder, i.e. past current end of the file, will
>+ * simply extend the file....
>+ */
The side effect of resizing the image might a) fail, b) be unexpected.
If you really want to write that sector, then size the image accordingly.
