Re: Booting headless PowerMac G5
On Fri, 2010-03-26 at 11:20 +0100, Romain Goyet wrote: > 2010/3/25 Michel Dänzer : > > On Wed, 2010-03-24 at 11:32 +0100, Romain Goyet wrote: > >> > >> By the way, as of writing this, grub2 on PPC from debian gives a "out > >> of memory" issue. Known bug. > > > > That's on the G5? It's working on my PowerBook, but I haven't updated > > the grub2 binaries on the bootstrap partition in a while... > > Yeah, that's on a PowerMac QuadG5. > I think that's a known issue : > http://www.mail-archive.com/grub-de...@gnu.org/msg04455.html > However it might be another one since it's working for you. I'm using > grub2 from Debian stable. According to http://packages.debian.org/stable/grub2 that's version 1.96 +20080724-16, which is pretty old. Current in sid is 1.98, and it's only become usable for me in the course of the last year or so. -- Earthling Michel Dänzer |http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: Booting headless PowerMac G5
2010/3/25 Michel Dänzer : > On Wed, 2010-03-24 at 11:32 +0100, Romain Goyet wrote: >> >> Here's a summary about "how to boot a PowerMac G5 without a screen >> attached". As many people have noticed, default yaboot install won't >> boot unless a screen is attached. >> >> Actually, the workaround is really simple. Thing is, that's the >> "ofboot.b" script that messes things up. This script is a "bridge", >> that actually either starts yaboot or let you boot off of a CD. I >> don't know what's the point, since OpenFirmware already lets you boot >> off of the CD by pressing C on boot… >> >> So basically, to boot headless, all you have to do is to tell >> OpenFirmware to boot straight off the yaboot binary, and to skip the >> ofboot.b >> Just boot into OpenFirmware (Command-Option-O-F), and type : >> setenv boot-device hd:2,yaboot (where 2 is the number of the partition >> containing yaboot) >> boot >> >> And here you go, you can unplug that useless monitor :-) >> >> References : >> http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT.html >> http://grub.enbug.org/TestingOnPowerPC > > That's good to know, thanks. > You're welcome. Actually I also wrote this as a memo for myself :-) > >> By the way, as of writing this, grub2 on PPC from debian gives a "out >> of memory" issue. Known bug. > > That's on the G5? It's working on my PowerBook, but I haven't updated > the grub2 binaries on the bootstrap partition in a while... > > Yeah, that's on a PowerMac QuadG5. I think that's a known issue : http://www.mail-archive.com/grub-de...@gnu.org/msg04455.html However it might be another one since it's working for you. I'm using grub2 from Debian stable. > -- > Earthling Michel Dänzer | http://www.vmware.com > Libre software enthusiast | Debian, X and DRI developer > > > > > > ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: Booting headless PowerMac G5
On Wed, 2010-03-24 at 11:32 +0100, Romain Goyet wrote: > > Here's a summary about "how to boot a PowerMac G5 without a screen > attached". As many people have noticed, default yaboot install won't > boot unless a screen is attached. > > Actually, the workaround is really simple. Thing is, that's the > "ofboot.b" script that messes things up. This script is a "bridge", > that actually either starts yaboot or let you boot off of a CD. I > don't know what's the point, since OpenFirmware already lets you boot > off of the CD by pressing C on boot… > > So basically, to boot headless, all you have to do is to tell > OpenFirmware to boot straight off the yaboot binary, and to skip the > ofboot.b > Just boot into OpenFirmware (Command-Option-O-F), and type : > setenv boot-device hd:2,yaboot (where 2 is the number of the partition > containing yaboot) > boot > > And here you go, you can unplug that useless monitor :-) > > References : > http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT.html > http://grub.enbug.org/TestingOnPowerPC That's good to know, thanks. > By the way, as of writing this, grub2 on PPC from debian gives a "out > of memory" issue. Known bug. That's on the G5? It's working on my PowerBook, but I haven't updated the grub2 binaries on the bootstrap partition in a while... -- Earthling Michel Dänzer |http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: Booting headless PowerMac G5
The root of the problem is that Apple OF will not open an stdout for you on some machines if you don't enter OF manually, so yaboot text never shows up. This was somewhat worked around by the ofboot.b script but indeed, it seems to fail to check that there's a display to open before actually opening it, which cause the failure you are hitting. Check /chosen/stdout , if it's there and non-zero there is an open output device (whether some screen or serial or telnet or whatever). This is an ihandle. Maybe we can try to make the script a bit smarter to detect that there's nothing there. Hard to tell, the arcanes of Apple OF are quite obscure. I'll check them all (well, anything in the NewWorld) if you tell me what to check. Segher ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: Booting headless PowerMac G5
On Wed, 2010-03-24 at 11:32 +0100, Romain Goyet wrote: > Hi there, > > > Here's a summary about "how to boot a PowerMac G5 without a screen > attached". As many people have noticed, default yaboot install won't > boot unless a screen is attached. CC'ing Tony who is the latest victim of yaboot maintainership... > Actually, the workaround is really simple. Thing is, that's the > "ofboot.b" script that messes things up. This script is a "bridge", > that actually either starts yaboot or let you boot off of a CD. I > don't know what's the point, since OpenFirmware already lets you boot > off of the CD by pressing C on boot… > > So basically, to boot headless, all you have to do is to tell > OpenFirmware to boot straight off the yaboot binary, and to skip the > ofboot.b > Just boot into OpenFirmware (Command-Option-O-F), and type : > setenv boot-device hd:2,yaboot (where 2 is the number of the partition > containing yaboot) > boot > > And here you go, you can unplug that useless monitor :-) The root of the problem is that Apple OF will not open an stdout for you on some machines if you don't enter OF manually, so yaboot text never shows up. This was somewhat worked around by the ofboot.b script but indeed, it seems to fail to check that there's a display to open before actually opening it, which cause the failure you are hitting. Maybe we can try to make the script a bit smarter to detect that there's nothing there. Hard to tell, the arcanes of Apple OF are quite obscure. But at least, I think ybin could grow a config option to tell it not to install ofboot.b or at least install a variant that won't suck when there is no display attached. Cheers, Ben. > References : > http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT.html > http://grub.enbug.org/TestingOnPowerPC > > By the way, as of writing this, grub2 on PPC from debian gives a "out > of memory" issue. Known bug. > ___ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Booting headless PowerMac G5
Hi there, Here's a summary about "how to boot a PowerMac G5 without a screen attached". As many people have noticed, default yaboot install won't boot unless a screen is attached. Actually, the workaround is really simple. Thing is, that's the "ofboot.b" script that messes things up. This script is a "bridge", that actually either starts yaboot or let you boot off of a CD. I don't know what's the point, since OpenFirmware already lets you boot off of the CD by pressing C on boot… So basically, to boot headless, all you have to do is to tell OpenFirmware to boot straight off the yaboot binary, and to skip the ofboot.b Just boot into OpenFirmware (Command-Option-O-F), and type : setenv boot-device hd:2,yaboot (where 2 is the number of the partition containing yaboot) boot And here you go, you can unplug that useless monitor :-) References : http://saintaardvarkthecarpeted.com/blog/archive/2005/02/THE_WINE_OF_BOOT.html http://grub.enbug.org/TestingOnPowerPC By the way, as of writing this, grub2 on PPC from debian gives a "out of memory" issue. Known bug. ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Booting headless PowerMac
Most people have had ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
