Bug #2830 ยป 0001-Align-partitions-to-1MiB.patch
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You may also specify any symbolic name in the system |
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.Xr uuids 5 |
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files. |
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.Pp |
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.Em NOTE! |
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If you don't specify a beginning sector with |
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.Fl b Ar number |
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, the new partition will be aligned to 1MiB in size and position |
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(in case of 512 byte sector sizes). |
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.\" ==== boot ==== |
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.It Nm Ic boot Ar device ... |
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The |
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#include "map.h" |
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#define ROUNDTO 2048 // must be a power of two |
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#define ROUNDDOWN(x) ((x-1) & ~(ROUNDTO-1)) |
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#define ROUNDUP(x) (ROUNDDOWN(x) + ROUNDTO) |
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int lbawidth; |
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static map_t *mediamap; |
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off_t delta; |
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map_t *m; |
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if (start == 0 && size != 0) |
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size = ROUNDUP(size); |
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for (m = mediamap; m != NULL; m = m->map_next) {
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if (m->map_type != MAP_TYPE_UNUSED || m->map_start < 2) |
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continue; |
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if (start != 0 && m->map_start > start) |
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return (NULL); |
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delta = (start != 0) ? start - m->map_start : 0;
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delta = (start != 0) ? start - m->map_start : ROUNDUP(m->map_start) - m->map_start;
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if (size == 0 || m->map_size - delta >= size) {
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if (m->map_size - delta <= 0) |
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continue; |
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if (size == 0) |
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if (size == 0) {
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size = m->map_size - delta; |
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if (start == 0) |
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size = ROUNDDOWN(size); |
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} |
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return (map_add(m->map_start + delta, size, |
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MAP_TYPE_GPT_PART, NULL)); |
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} |