Date: Fri, 21 Nov 2014 22:08:25 +0200 From: Jukka Ukkonen <jau789@gmail.com> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: "freebsd-ppc@FreeBSD.org" <freebsd-ppc@FreeBSD.org> Subject: Re: Booting freebsd on a powermac g4 from a CD Message-ID: <003B9EAA-E1AD-45C6-AC56-4331BCDE4193@gmail.com> In-Reply-To: <546F6C90.4040005@freebsd.org> References: <546E38E4.70305@gmail.com> <546E3959.5020904@freebsd.org> <20141121055732.GB56272@FreeBSD.org> <546F028D.9040907@gmail.com> <546F6C90.4040005@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Sent from my iPad > On 21 Nov 2014, at 18:47, Nathan Whitehorn <nwhitehorn@freebsd.org> wrote:= >=20 >=20 >> On 11/21/14 01:14, Jukka Ukkonen wrote: >>> On 11/21/14 07:57, Alexey Dokuchaev wrote: >>>> On Thu, Nov 20, 2014 at 10:56:25AM -0800, Nathan Whitehorn wrote: >>>>> On 11/20/14 10:54, Jukka Ukkonen wrote: >>>>> What might be the current official method or at least known >>>>> working method for booting FreeBSD on a PowerMac G4 from a CD? >>>> You should just be able to insert the CD and hold 'C'. Does that not >>>> work for you? What model of G4 is this? >>=20 >> Right, I needed the CD boot only to fix an existing FreeBSD-10.1 >> installation which had started hanging during boot time autoconfig >> right after having displayed gem0 MAC address. >> These odd systematic hangs began after updating from 10.1-RC3 to >> 10.1. >>=20 >> So, I installed an alternative 10.1 kernel from the CD. >> It booted without any major problems both from the CD and from >> the hard disk. The only apparent difference in my locally built >> kernel was that it used VT instead of syscons. >> The default ppc kernel on the CD seems to be using syscons. >> Obviously I rebuilt the kernel locally once more switching back >> from VT to syscons. Rebooting with the new locally built kernel >> which uses syscons worked just fine again. >> So, my quick hypothesis is that VT must be somehow broken. >>=20 >> An additional little brain teaser I found while fixing the >> dysfunctional boot with the VT enabled kernel was that when >> I boot the ppc system from a CD it seems to be quite happy >> to work with a PS/2 keyboard connected to a USB adapter. >> When I boot the system from hard disk this adapter and the >> PS/2 keyboard connected to it are not recognized at all. >> Here is what "usbconfig list" tells about the gizmo... >>=20 >> ugen1.2: <product 0x0018 vendor 0x13ba> at usbus1, cfg=3D0 md=3DHOST spd=3D= LOW >> (1.5Mbps) pwr=3DON (400mA) >>=20 >> Anyhow it seems that for now it makes sense to stick to >> using syscons instead of VT on ppc unless one wishes to >> start debugging VT code. >>=20 >> Cheers, >> --jau >>=20 >=20 > This is very confusing to me. Are the kernel configs really *completely* i= dentical aside from VT vs. syscons? VT uses the same code on PPC to use the f= ramebuffer as syscons and doesn't touch any of this other stuff. 10.1 also d= oesn't have vt in GENERIC -- only 11 has that. Are you sure you didn't insta= ll an 11 image instead? > -Nathan Yes, the only diff was commenting sc out and putting vt in. I even named the modified version VTGENERIC to remember that this configuration shall never carry any other changes. --jau
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?003B9EAA-E1AD-45C6-AC56-4331BCDE4193>