Hi Ben, Sorry for the direct question, but I assumed you would know the answer. We are currently trying to replace yaboot with grub-ieee1275 in debian-installer, but are facing a very small issue, namely with OF path handling. It appears that on Apple hardware only `ofpath` from Yaboot returns the correct path. Are you using grub on any of your Apple hardware ? Thanks much for comments.
See below for full context. On Tue, Nov 21, 2017 at 7:51 AM, Frank Scheiner <[email protected]> wrote: > Hi Rick, > > On 11/21/2017 02:48 AM, Rick Thomas wrote: >> >> If you can tell me *exactly* what to do, and I don’t have to set up an >> installation environment to do it, I’ll be happy to test ofpathname vs >> ofpath vs devalias on my PowerPC test machine farm. > > > Well, to be on the safe side, I think you need to use the latest versions of > ofpath and ofpathname, hence running Debian Sid could be the easiest way to > make sure this is the case. > > You need to have a disk installed, because ofpath and IIC also ofpathname do > not or cannot translate non existing device aliases to OF paths. > > In general the commands I ran for the p5 520Q below should do. Assuming that > the output of ofpathname will always be wrong for Power Macs, it should be > sufficient to check only one partition. > > I think devalias does only save/return OF paths up to the disk level, but > not up to the partition level. But the disk level should already be > sufficient to detect differences to ofpath and/or ofpathname. > > You have to go to OF to run devalias, but with a glass console you won't be > able to copy the output. There are ways to interact with the OF via telnet > from another machine (see [1] and possibly [2]), but I haven't tried this > yet. > > [1]: > https://web.archive.org/web/20040202053614/http://developer.apple.com/technotes/tn/tn2004.html > > [2]: > https://web.archive.org/web/20040202060137/http://developer.apple.com:80/technotes/tn/tn2023.html > >> >> I have the following machines: >> Power Mac G5 11,2, >> Power Mac G5 7,2 (I think — it’s turned off right now) >> Mac mini G4 10,1 > > > I have these types available, too, "except" for the 7,3 which currently > won't start up correctly. > > Here's the output of ofpath and ofpathname for /dev/sda2 on the my Mac mini > (10,1): > ``` > root@mac-mini:~# ofpath /dev/sda2 > /pci@f4000000/ata-6@d/@0:2 > > root@mac-mini:~# ofpathname /dev/sda2 > /usr/sbin/ofpathname: line 812: warning: command substitution: ignored null > byte in input > /pci@f4000000/ata-6@d/scsi@0/sd@0,0 > ``` > > Also interesting, it looks like ofpathname cannot even give a "correct" > result for an IBM machine, at least not for my p5 520Q: > ``` > root@p5-520q:~# lsblk > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT > sda 8:0 0 136.7G 0 disk > ├─sda1 8:1 0 7M 0 part > ├─sda2 8:2 0 131.1G 0 part > ├─sda3 8:3 0 1K 0 part > └─sda5 8:5 0 5.6G 0 part > sr0 11:0 1 1024M 0 rom > > root@p5-520q:~# ofpath /dev/sda1 > /pci@800000020000003/pci@2,4/pci1069,b166@1/scsi@0/@3:1 > > root@p5-520q:~# ofpathname /dev/sda1 > /pci@800000020000003/pci@2,4/pci1069,b166@1/scsi@0/sd@3,0 > > root@p5-520q:~# ofpath /dev/sda2 > /pci@800000020000003/pci@2,4/pci1069,b166@1/scsi@0/@3:2 > > root@p5-520q:~# ofpathname /dev/sda2 > /pci@800000020000003/pci@2,4/pci1069,b166@1/scsi@0/sd@3,0 > ``` > > Please notice that ofpathname returns the same result for two different > partitions. :-/ > >> Mac G4 3,4 >> Mac G4 dual core 3,6 > > > Results for these machines would be helpful. It should work to > install/upgrade to Debian Sid on one machine only and just move the disk to > the other machine later on for testing. > > Cheers, > Frank
