Since commit 30bee0201, the anchor is updated from the active DDF header. This requires fixing the header type before the anchor is written. The LSI Software RAID code will reject DDF meta data with wrong anchor type and will erase all meta data when it encounters such a broken anchor. Thus starting Linux md once on a system with LSI RAID BIOS may cause the meta data to get destroyed. --- super-ddf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/super-ddf.c b/super-ddf.c index d0b2ac7..faaf0a7 100644 --- a/super-ddf.c +++ b/super-ddf.c @@ -3158,6 +3158,7 @@ static int _write_super_to_disk(struct ddf_super *ddf, struct dl *d) memcpy(&ddf->primary, &ddf->anchor, 512); memcpy(&ddf->secondary, &ddf->anchor, 512); + ddf->anchor.type = DDF_HEADER_ANCHOR; ddf->anchor.openflag = 0xFF; /* 'open' means nothing */ ddf->anchor.seq = cpu_to_be32(0xFFFFFFFF); /* no sequencing in anchor */ ddf->anchor.crc = calc_crc(&ddf->anchor, 512); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
