[Clfs-dev] Seeking help to boot PowerPC64-Multilib

[John Frankish]

At 10:43 16-11-08, you wrote:
>At 19:23 15-11-08, you wrote:
>>On Sat, Nov 15, 2008 at 01:19:40PM +0400, John Frankish wrote: > At 
>>02:01 15-11-08, you wrote: > >On a mac, yaboot.conf is copied to 
>>the apple_bootstrap partition by > >ybin, and is read during the 
>>boot (bottom of Appendix E in the ppc64 > >book).  You quite 
>>clearly don't have this sort of partitioning. > >Google found that 
>>booting on ps3 apparently used to need kboot, 
>>not > >yaboot.  Unclear if that was just for the initial boot.  I 
>>wonder if > >ydl's version of yaboot has been patched for the ps3 
>>(check the > >source rpms). ? 'man yaboot.conf' on your ydl system 
>>is probably the > >best I can suggest.  Perhaps it specifically 
>>mentions the ps3 > >?  Maybe try 'ofpath /dev/ps3da2' Even though 
>>your mailer is doing funny things to the formatting, at least in 
>>replies, please read that paragraph, and try my suggestions. (edit: 
>>at least try the ofpath command). > > I could see that I could do 
>>this prior to compiling/installing the > kernel, which would 
>>install the clfs kernel alongside the ydl kernel > in /boot - but 
>>I'm kind of lost as to how to set things up on reboot > so that the 
>>clfs kernel loads (effectively from /dev/ps3da1) and > 
>>/clfs/sbin/pre-init gets called from /dev/ps3da2 ?? > > John > From 
>>past experience, I know that trying to find ydl source rpms is 
>>about as easy as finding hens' teeth, but a search of their website 
>>presented me with http://us.fixstars.com/products/ydl/apps.shtml 
>>which suggests that yaboot is NOT the correct boot tool. Google, on 
>>the web rather than the ydl site, was a little more helpful.  If 
>>you are on ydl 6, try 
>>ftp://ftp.yellowdoglinux.com/pub/yellowdog/releases/yellowdog-6.0/SRPMS/ 
>>I said earlier that I didn't understand the 'mountpoint' line. 
>>Maybe I've forgotten something, because ydl's yaboot has a (rh, or 
>>fedora) patch to "Allow mntpoint to be more than one directory into 
>>the partition as long as magicboot and nvram are not being used" 
>>(compare the warning in the book's yaboot.conf: # For all images, 
>>the pathname is relative to the filesystem # on which they are 
>>situated and can include at most one # directory - of course, we do 
>>specify magicboot, and use nvram on a mac). BUT, I still don't 
>>think you use yaboot to boot from ps3, or else you don't use it in 
>>the way I expect.  On a mac, and probably on pSeries and pegasos, 
>>we do it like this: 1. add new kernel to yaboot.conf 1A. if it is 
>>on a different partition, use ofpath to get the Open Firmware path 
>>to it 
>>(image=/ht at 0,f2000000/pci at 3/k2-sata-root at c/k2-sata at 0/disk at 0:9,/boot/clfskernel-2.6.26.5) 
>>for one of mine, on /dev/sda9 2. run ybin to write some OF (Forth) 
>>code plus the contents of yaboot.conf to the bootstrap partition 
>>and update the nvram. If you *are* using yaboot, please explain how 
>>you use it.  Please do NOT try using steps '1' and '2' above, 
>>unless you already use them.
>----------------------------
>I'm using ydl-6 on the ps3 which definitely uses yaboot (maybe the 
>confusion comes from earlier versions of ydl which may have used 
>something else on the ps3). If I compile a new kernel in ydl-6, ybin 
>seems to be automatically invoked and yaboot.conf is automatically 
>updated. I can also modify yaboot.conf in ydl-6 and have the changes 
>(eg change the default kernel) take effect for the next boot with or 
>without invoking ybin...
>
>I checked the yaboot/yaboot.conf man pages in ydl-6 - not much to 
>see except that "init=" does not exist as a parameter to pass 
>/clfs/sbin/pre-init, maybe it could be passed as "append="? The 
>other thing to note (as you mention above) is that it looks like I 
>need the full openfiremware path to the clfs image on the partition. 
>I did not know about "ofpath" so I guess this is the next thing to try.
>
>Thanks for the help with this.
>
>John
-----
I finally got it to boot with this added to yaboot.conf on the ps3 host:

image=/vmlinux
label=clfs
root=/dev/ps3da2
append="init=/clfs/sbin/pre-init video=ps3fb:mode:13 rhgb quiet"
read-only

Note that I mounted the ydl-6 host's boot partition as /boot (i.e. 
mount /dev/ps3da1 /boot) and "make install"-ed the kernel as opposed 
to copying it to /boot - hence /vmlinux

Thanks for the suggestions

John