Re: install/39697: no raidframe support in sysinst

[Bernd Ernesti <pr200817%veego.de@localhost>]

The following reply was made to PR install/39697; it has been noted by GNATS.

From: Bernd Ernesti <pr200817%veego.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: install/39697: no raidframe support in sysinst
Date: Sun, 5 Oct 2008 12:08:46 +0200

 On Sun, Oct 05, 2008 at 12:05:04AM +0000, Martin Husemann wrote:
 >  On Sat, Oct 04, 2008 at 08:30:00PM +0000, Bernd Ernesti wrote:
 >  >   sysinst has no obvious option (if at all) to create a raid with 
 > raidframe
 >  >   and install the system on it.
 >  
 >  Not that I disagree with the wish to have more complete support in sysinst -
 >  just for the record, the unobvious option is:
 >  
 >   - use the utility menu and run a shell from there
 >   - use raidctl to configure your raid set
 
 Unfortunally this is not so easy.
 
 IMHO it is missing the fdisk / disklabel part (fstype RAID), which is a 
requiremnt
 for creating the raid set and the initial setup of the bootloader for a root 
raid
 set.
 
 And I'm not sure which stripe size I should use for a raid1 set.
 Greg used a formular on how to calculate it in his mail on current-users at
 the end of August 2008:
  ($stripewidth / 2 * ($disks - 1)) == MAXPHYS
 But it looks like that was an example for a raid5 set, so I'm not sure about
 the '($disks - 1)' part and if it applies to a raid1 set too.
 
 >   - exit the shell, go back to the sysinst main page and start the install
 >   - raid0 (or whatever you created) will now be offered as an install target
 
 Bernd