Re: install/39510: NetBSD/amd64 won't install on MacBook (GPT)

[christos%zoulas.com@localhost (Christos Zoulas)]

On Sep 10, 11:00am, jonathan%perkin.org.uk@localhost 
(jonathan%perkin.org.uk@localhost) wrote:
-- Subject: install/39510: NetBSD/amd64 won't install on MacBook (GPT)

| >Number:         39510
| >Category:       install
| >Synopsis:       NetBSD/amd64 won't install on MacBook (GPT)
| >Confidential:   no
| >Severity:       critical
| >Priority:       high
| >Responsible:    install-manager
| >State:          open
| >Class:          sw-bug
| >Submitter-Id:   net
| >Arrival-Date:   Wed Sep 10 11:00:00 +0000 2008
| >Originator:     Jonathan Perkin
| >Release:        4.99.72 (20080818 snapshot)
| >Organization:
| >Environment:
| >Description:
| (c+p by hand)
| 
| wd0 at atabus2 drive 1: <FUJITSU MHW2160BHPL>
| wd0: drive supports 16-sector PIO transfers, LBA48 addressing
| wd0: 149GB, 310101 cyl, 16 head, 63 sec, 512 bytes/sect x 312581808 sectors
| wd0: GPT GUID: 000071e0-0e0a-0000-6465-00007b710000
| dk0 at wd0: EFI system partition
| dk0: 409600 blocks at 40, type: msdos
| wd0: skipping entry 1 (7e9db2c5-cbf0-4c3a-8067-14861e04bb33), type 
48465300-0000-11aa-aa11-00306543ecac
| wd0: skipping entry 2 (e0175749-2bb3-470b-a1c4-f19aa62bbd2c), type 
ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
| wd0: 32-bit data port
| wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
| wd0(piixide1:0:1): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA)
| 
| During install, NetBSD picks up the partition table ok:
| 
|     Start( MB)  Size( MB) Flg Kind
|     ---------- --------- --- ----
|  a:          0        200     Unknown (238)
|  b:        200     146304     Unknown (175)
|  c:     146504       6123     NetBSD
| 
| but when trying to newfs, fails with
| 
|   Setting up DOS partition table
|   newfs: /dev/rwd0a: open for read: Device busy
| 
| According to
| 
|   http://mail-index.netbsd.org/current-users/2008/06/29/msg003277.html
| 
| disabling GPT support fixes this, although I've not yet verified this myself.
| 
| 
| >How-To-Repeat:
| Install NetBSD/amd64 snapshot on a MacBook, possibly other machines with 
GPT/EFI.
| >Fix:
| Disable GPT support.

You should be able to install on dk devices. Once wedges are active on wd0,
you can only access wd0 from /dev/dk*; accessing it from /dev/wd* returns
EBUSY as expected. The installed does not know about wedges so you lose.

christos