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--- openbsd_disk_formatting [2025/11/20 08:09] – created xmpub
+++ openbsd_disk_formatting [2025/11/20 08:16] (current) – xmpub
@@ Line 1: / Line 1: @@
+{{tag>guides openbsd software hardware}}
 ====== OpenBSD/Disk formatting ======
 This is how you can format a disk on [[OpenBSD]]:
   *Use ''sysctl hw.disknames'' or ''dmesg | grep sd'' to find the names of attached disks.
-  *Once you know its name you can edit it with ''fdisk -e sdX'' where X is the name of the connected disk (MAKE **SURE** YOU HAVE IT RIGHT!)
+  *Then, run ''disklabel -E sdX'' where X is the name of the connected disk you want to edit (MAKE **SURE** YOU HAVE IT RIGHT!)
+  *Enter ''z'' to delete the existing partition table. Then type ''a'' to add a partition. Afterwards ''w'' and then ''q'' to save and quit.
+  *After this is done you will be left with a partition called sdXa. (a is the root partition in the bsd disklabel scheme) Run ''newfs sdXa'' to format it.
 ===== See also =====
 https://www.openbsd.org/faq/faq14.html