Hi, Thank you very much for your explanation! It is very interesting.
Could you write this to the NetBSD guide? Thanks again. From: mlel...@serpens.de (Michael van Elst), Date: Mon, 8 Feb 2016 18:10:29 +0000 (UTC) > ryo...@yk.rim.or.jp (Ryo ONODERA) writes: > >>However I have no experience about non-GPT disk. >>And I do not understand naming rule about non-GPT disk partitions. > > There are two cases: > > Without DKWEDGE_METHOD_BSDLABEL > > There are no wedges for this disk, but NAME matches dk_name + > partition_character > -> wd0a, wd0b, wd0c just refer to /dev/wd0a, /dev/wd0b, ... > > With DKWEDGE_METHOD_BSDLABEL > > if the d_packname is '' or 'fictitious' then > the wedge is named dk_name + partition_character > -> wd0a, wd0b, wd0c, ... > > otherwise > the wedge is named d_packname + '/' + partition_character > -> label/a, label/b, label/c, ... > > > So you can just use something like NAME=wd0a together with a standard > disklabel (where d_packname == 'fictitious') and it will find the > same partition, wether your kernel has DKWEDGE_METHOD_BSDLABEL or not. > > > This doesn't help for a 'portable' name. You can only have names if you > use wedges and you must assign a name to be 'portable', i.e. independent > of the driver name. > > I.e.: you use a kernel with DKWEDGE_METHOD_BSDLABEL, use the disklabel > program to set the d_packname to something like 'systemdisk' and then use > NAME=systemdisk/a to refer to the root partition of that disk. > > > -- > -- > Michael van Elst > Internet: mlel...@serpens.de > "A potential Snark may lurk in every tree." -- Ryo ONODERA // ryo...@yk.rim.or.jp PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB FD1B F404 27FA C7D1 15F3
