Subject: mbrlabel and *BSD partitions
To: None <tech-userlevel@NetBSD.org>
From: Klaus Heinz <k.heinz.jul.sechs@onlinehome.de>
List: tech-userlevel
Date: 07/12/2006 21:55:05
Hi,
with a new disk I observed that mbrlabel sets the size of MBR partitions
of type 169 to a fixed size of 16384 blocks:
$ mbrlabel wd1
...
Found 4.2BSD partition; size 8032437 (3922 MB), offset 77561883
adding 4.2BSD partition to slot h.
...
h: 16384 77561883 4.2BSD 1024 8192 16 # (Cyl.76946*- 76962*)
This behaviour is not a bug as I first thought, it is hardwired in
mbrlabel.c:
switch (npe.p_fstype) {
case FS_BSDFFS:
case FS_APPLEUFS:
npe.p_size = 16384; /* XXX */
npe.p_fsize = 1024;
npe.p_frag = 8;
npe.p_cpg = 16;
break;
Why does mbrlabel use the information from the MBR in the new disklabel
for all the other partition types but not for BSD partitions?
ciao
Klaus