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 Post subject: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 23 Feb 2010, 19:20 
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Joined: 27 Oct 2009, 10:10
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Location: France -Quimper
Hello,

I have a problem when I am trying to start from my fresh installation. I have the following message :
Code:
Welcome ...
[...]
/pci@4000000000000110/pci@2,4/pci1069,b166@1/scsi@0/sd@3,0-1,/ppc/pseries/yaboot.msg : Unknown or corrupt filesystem
Enter "help" ...
boot: pseries
Please wait, loading kernel...
/pci@4000000000000110/pci@2,4/pci1069,b166@1/scsi@0/sd@3,0-1,/boot/vmlinux: Unknwon or corrupt filesystem


Is it because I need to patch the kernel?

Thanks.


Last edited by fredmj on 23 Feb 2010, 23:22, edited 1 time in total.

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 Post subject: Re: problem with yaboot on IBM pseries 9114-275
PostPosted: 23 Feb 2010, 21:37 
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Joined: 27 Oct 2009, 10:10
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Location: France -Quimper
yep, it's that.
After work with this topic, all is correct now.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275
PostPosted: 23 Feb 2010, 22:53 
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Joined: 17 Dec 2005, 14:31
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the kernel patch is needed only if your machine is equipped with a GXT4000P or GXT6500P video card and you want to have a monitor output instead of a serial console.

Your problem, IMHO, was related at a wrong yaboot installation or configuration.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275
PostPosted: 23 Feb 2010, 23:21 
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Ok, I can believe that since this server have a GXT 4500P.
But notice I have only changed the last installation step. I mean I have patched the kernel and copy it over the "un-patched". Nothing else, the yaboot.chrp file was already copied at the step before. Same for the partition order and type...
And yep, I have touched the yaboot.conf by supressing the unecessary step.
The serial console (nore the HMC port) doesn't seem working on my server. I have used the minicom application on a linux box to track the console output, but well, nothing for the moment.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 02:21 
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fredmj wrote:
The serial console (nore the HMC port) doesn't seem working on my server. I have used the minicom application on a linux box to track the console output, but well, nothing for the moment.


SMS automatically switch your output on serial console if there isn't a keyboard connected.
To access your CRUX PPC via serial console too you need to modify /etc/inittab and /etc/securetty:

from CRUX PPC Handbook:
Code:
NOTE: If you want access your computer via serial console (as it should be for IBM RS/6000, pSeries, Apple Xserve or Genesi EFIKA users) you also have to add ttyS0 (ttyPZ0 for Xserve or ttyPSC0 for EFIKA) in the /etc/securetty and c7:2:respawn:/sbin/agetty 9600 ttyS0 (c7:2:respawn:/sbin/agetty 57600 ttyPZ0 for Xserve or c7:2:respawn:/sbin/agetty 115200 ttyPSC0 for EFIKA) in the /etc/inittab file. IBM System p and PPC970 cpu based systems work with 19200bps serial console.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 08:40 
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OK I even didn't know about the keyboard tips for the HMC output. Even it seem logical in fact. Well.

For the serial console I had noticed the file modifictations on /etc/securetty and /etc/inittab.
Here my total configuration : I use an eeePC 701 with a slackware 13-0, plugged with an USB/DB9 adaptator to connect finally the server. I launch the minicom with "9600 8N1" settings. But well, I am still offline.

EDIT :
I have noticed that in the installation documentation, which is especially clear, it (maybe) should be useful to add the following statement : we HAVE to name as ".profile" (and not my_configuration.config) for the kernel configuration file in order to compile.
EDIT #2 :
I also noticed that we have to copy the yaboot.conf file from the un-chrooted partition in order to edit it.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 14:04 
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fredmj wrote:
OK I even didn't know about the keyboard tips for the HMC output. Even it seem logical in fact. Well.


if you have an HMC then it's a different history and you must look for further support from IBM.

I strongly suggest you read your own machine manual:
link: http://publib.boulder.ibm.com/infocente ... 14_275.htm

Quote:
For the serial console I had noticed the file modifictations on /etc/securetty and /etc/inittab.
Here my total configuration : I use an eeePC 701 with a slackware 13-0, plugged with an USB/DB9 adaptator to connect finally the server. I launch the minicom with "9600 8N1" settings. But well, I am still offline.


well, connect your nullmodem cable to the Intellistation's first serial port (S1) and you'll see a login prompt through the serial console. If it's a second hand equipment you'd check in SMS menu about the serial speed. It could not be 9600bps but different.
If you want to see linux bootstrap too then you have to add console=ttyS0,9600 as kernel parameter.

If you don't know about kernel parameters you can read here:
link: http://www.kernel.org/doc/Documentation ... meters.txt

Quote:
EDIT :
I have noticed that in the installation documentation, which is especially clear, it (maybe) should be useful to add the following statement : we HAVE to name as ".profile" (and not my_configuration.config) for the kernel configuration file in order to compile.
EDIT #2 :
I also noticed that we have to copy the yaboot.conf file from the un-chrooted partition in order to edit it.


I'm sorry, but i don't understand. Refer, please, to CRUX PPC Handbook.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 14:30 
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Many thanks for the links. I will read carefully all of them.

About the edit annotation, I would said :
1°) To compile the kernel, I had to save my parameter in a file named ".config".
Apparently the "make all" command need a .config file and nothing else.
2°) We have to use a yaboot.conf file; But when the handbook mention that, we already made the chroot command. So that we can't find the /etc/yaboot.conf file. To modify the yaboot.conf file, we HAVE to open a new console and copy the file from /etc/yaboo.conf TO /mnt/etc/yaboot.conf

I guessed, that could be useful to mention that in the handbook. Especially for newbies as I am.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 17:44 
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Joined: 17 Dec 2005, 14:31
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fredmj wrote:
1°) To compile the kernel, I had to save my parameter in a file named ".config".
Apparently the "make all" command need a .config file and nothing else.


.config is created by make menuconfig
CRUX(PPC) is targetted at experienced users that, already, are able to compile a linux kernel.

Quote:
2°) We have to use a yaboot.conf file; But when the handbook mention that, we already made the chroot command. So that we can't find the /etc/yaboot.conf file. To modify the yaboot.conf file, we HAVE to open a new console and copy the file from /etc/yaboo.conf TO /mnt/etc/yaboot.conf


that's because you want to copy yaboot.conf used by installation ISO.
Anyway, thanks for your report. I reworked opt/yaboot-bin port to provide the /etc/yaboot.conf example file.


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 Post subject: Re: problem with yaboot on IBM pseries 9114-275 [SOLVED]
PostPosted: 24 Feb 2010, 17:51 
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Location: France -Quimper
OK, thanks for all that precisions.


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