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| 07:27.22 | orl_ | pahartik: I'd like you to explain me what you wrote a bit more. |
| 07:28.24 | orl_ | pahartik: when is it possible for you to spend some half(s) an hour/hour on this problem? (I live in France, so consider my local time being UTC, it's alsmot true) |
| 07:41.28 | pahartik | orl_: When user chooses which instance of MacOS from which block device is preferred for booting, it is stored to non-volatile memory... |
| 07:48.34 | orl_ | pahartik: OK. I got to go with my daughter to doctor, but I can discuss that in about 2 hours, is it possible for you? |
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| 08:06.00 | pahartik | orl_: I am probably available, but I am not sure if it helps |
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| 09:41.29 | orl_ | pahartik: hello again. |
| 09:41.59 | orl_ | pahartik: I've read what you told, but I'm not sure to have understand. |
| 09:42.42 | orl_ | Actually, I use Debian for quite a time, now, but it's the very first time I have to install it on a PPC, and it's also the first time I seriously dig a bit deep into Mac OS, GPT, OF, etc. |
| 09:55.36 | pahartik | orl_: NewWorld PowerMacintosh systems boot with "yaboot" or "grub-ieee1275" |
| 09:59.32 | orl_ | Yes, I do use yaboot, on a newworld bootstrap partition. |
| 09:59.46 | pahartik | orl_: If I recall correctly, one can choose something else to boot with, by holding <Shift> down when powering up and waiting for while for devices to get scanned |
| 10:00.05 | orl_ | OK, that does launch the OFprompt? |
| 10:00.56 | pahartik | orl_: No, just simple menu |
| 10:01.01 | orl_ | OK. |
| 10:02.24 | orl_ | So, what you told before is that, the choice being made through this "shift simple menu" may be remanent as it is written in non-volatile memory? |
| 10:02.39 | orl_ | (btw, I don't know what non-volatile memory means). |
| 10:03.35 | orl_ | OK, it's like EPROM? |
| 10:03.52 | orl_ | OK, I begin to understand. |
| 10:03.58 | orl_ | (maybe) |
| 10:04.29 | pahartik | orl_: It is not permanent... To get permanent results, one can run "sudo ybin -v" |
| 10:04.35 | orl_ | There is no BIOS on PPC, but there is still something working a bit in the same way (or aiming the same goals) which told which device to boot on. |
| 10:04.57 | orl_ | OK, I did use that command on the source machine (ybin -v) |
| 10:05.08 | orl_ | but I didn't on the other ones. |
| 10:05.09 | pahartik | orl_: It should make "yaboot" default |
| 10:05.15 | orl_ | OK. |
| 10:05.20 | orl_ | That could be the point. |
| 10:05.47 | orl_ | (It would be pretty nice, as it was really impossible to find any coherence in what machine does boot and what other does not) |
| 10:06.04 | orl_ | ybin is available from Mac OS too, I suppose? |
| 10:06.37 | pahartik | orl_: No... Not that I know of |
| 10:06.46 | orl_ | OK. |
| 10:07.05 | orl_ | so I got to boot on yaboot (using shift), and then run ybin -v, and then, it's OK. |
| 10:07.12 | orl_ | *it may be OK |
| 10:07.16 | orl_ | ? |
| 10:09.32 | pahartik | orl_: If that key was not <Shift>, it is <Option> or <Command> or some such... Anyway, that menu shows possible boot devices and filesystems that have been detected |
| 10:10.36 | orl_ | OK. |
| 10:11.10 | orl_ | I'm going to try that (unfortunately, the structure for which I work on this PPC is not open on week end, and I will not check until Monday!) |
| 10:11.20 | orl_ | One more question, to be sure to have quite qell understood. |
| 10:11.22 | orl_ | *well |
| 10:11.49 | orl_ | ybin uses ofpath which uses /proc/scsi/scsi to find ofpath for devices. |
| 10:12.01 | orl_ | But my kernel is too new, and uses sysfs, so no /proc/scsi. |
| 10:12.05 | pahartik | orl_: And to make MacOS X default again, one can use control panel to choose boot media... |
| 10:12.19 | orl_ | OK............... |
| 10:12.39 | orl_ | Though, I just saw only HD and Network as options in this menu |
| 10:13.00 | orl_ | (continuing about ybin) So I've been written directly in /etc/yaboot.conf the ofpath for /dev/sda and /dev/sda3 |
| 10:13.50 | orl_ | I wondered whether this ofpath were "transposable" from one PPC to the other, knowing that the disk geometries are strictly the same, but the vendor sometimes differs (Seagate, Western Digital). |
| 10:14.38 | orl_ | Now I've raw-copied on the PPC, by checking in /proc/device-tree/aliases I find always the same ofpath, but I'm not sure it's OK, as it's perhaps something inducted by my raw-copy. |
| 10:15.03 | orl_ | *So I've been writing |
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| 10:17.54 | pahartik | orl_: Check out what "sudo nvsetenv | less" looks like |
| 10:18.48 | orl_ | I don't have this command on my AMD64 machine, what is aimed to? |
| 10:19.16 | orl_ | OK, it looks like it's really destined to Mac! |
| 10:19.42 | pahartik | orl_: For example, on my iBook G4 I have "boot-device=hd:2,grubof.modules"... |
| 10:19.50 | orl_ | OK. |
| 10:19.57 | orl_ | I keep this command in mind! |
| 10:22.36 | orl_ | Anyway, all you've told me sounds really nice, and really seems to give cartesian explainations to what we couldn't fix! |
| 10:25.27 | orl_ | OK, thanks for all of that. |
| 10:25.44 | orl_ | I'll keep you updated, and maybe, if I find the time, I will write a little HowTo. |
| 10:27.06 | pahartik | orl_: Also, if one knows device names system has, one can get to OpenFirmware console and try using "boot hd:2,grubof.modules" even if "boot-device" is set to something else |
| 10:28.47 | pahartik | orl_: OpenFirmware has "printenv" and "setenv", with equivalent function to "nvsetenv" on Linux and "nvram" on MacOS X |
| 10:30.45 | pahartik | orl_: You are welcome |
| 10:33.56 | orl_ | Cool. |
| 10:33.57 | orl_ | Thanks. |
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| 12:03.49 | groolot | orl_ : need me anymore ? |
| 12:17.17 | orl_ | groolot: hum, not really, but, => private |
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