diff options
Diffstat (limited to 'sbin/bsdlabel/bsdlabel.8')
| -rw-r--r-- | sbin/bsdlabel/bsdlabel.8 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sbin/bsdlabel/bsdlabel.8 b/sbin/bsdlabel/bsdlabel.8 index bf14e0f..1cc33ab 100644 --- a/sbin/bsdlabel/bsdlabel.8 +++ b/sbin/bsdlabel/bsdlabel.8 @@ -161,6 +161,21 @@ If the disk does not already have a label, the flag must be used. In either case, the kernel's in-core label is replaced. .Pp +For a virgin disk that is not known to +.Xr disktab 5 , +.Ar disktype +can be specified as +.Dq auto . +In this case, the driver is requested to produce a virgin label for the +disk. This might or might not be successful, depending on whether the +driver for the disk is able to get the required data without reading +anything from the disk at all. It will likely succeed for all SCSI +disks, most IDE disks, and vnode devices. Writing a label to the +disk is the only supported operation, and the +.Ar disk +itself must be provided as the canonical name, i.e. not as a full +path name. +.Pp An existing disk label may be edited by using the .Fl e flag. @@ -286,6 +301,12 @@ Read the on-disk label for sd0, edit it and reinstall in-core as well as on-disk. Existing bootstrap code is unaffected. .Pp +.Dl disklabel -r -w sd0 auto +.Pp +Try to auto-detect the required information from sd0, and write a new +label to the disk. Use another disklabel -e command to edit the +partitioning and file system information. +.Pp .Dl disklabel -R sd0 mylabel .Pp Restore the on-disk and in-core label for sd0 from information in |
