diff options
Diffstat (limited to 'sbin/disklabel/disklabel.8')
| -rw-r--r-- | sbin/disklabel/disklabel.8 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sbin/disklabel/disklabel.8 b/sbin/disklabel/disklabel.8 index 1cc33ab..ce1b168 100644 --- a/sbin/disklabel/disklabel.8 +++ b/sbin/disklabel/disklabel.8 @@ -362,3 +362,23 @@ will not install bootstrap code that overlaps it. When a disk name is given without a full pathname, the constructed device name uses the ``a'' partition on the tahoe, the ``c'' partition on all others. +.Pp +For the i386 architecture, the primary bootstrap sector contains +an embedded +.Em fdisk +table. +.Nm Disklabel +takes care to not clobber it when installing a bootstrap only +.Pq Fl B , +or when editing an existing label +.Pq Fl e , +but it unconditionally writes the primary bootstrap program onto +the disk for +.Fl w +or +.Fl R , +thus replacing the +.Em fdisk +table by the dummy one in the bootstrap program. This is only of +concern if the disk is fully dedicated, so that the BSD disklabel +starts at absolute block 0 on the disk. |
