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Cant get hppa kernel to work at all
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tenspd137
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PostPosted: Mon Oct 20, 2008 4:53 am    Post subject: Cant get hppa kernel to work at all Reply with quote

Hello all,

I have gone through this several times now. The first time, I tried building the 64bit kernel because I have 10GB of ram in my hppa j6700 workstation. I couldn't get that to work. I tried building a regular kernel with no modules to load - no luck - still hangs at the same place (other post: http://forums.gentoo.org/viewtopic-t-711670-highlight-.html). So I figured I would try using genkernel to get something that works, my reasoning being that if the minimal install CD works, I should be able to get it to boot on it's own. I keep getting an error saying that no .config file is specified with genkernel all. I am kind of at the end of my rope here - I have been trying to do this for the last 3 days now.

Can someone please help me with this and maybe help me figure out what I must be missing? I would greatly appreciate it!
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mattst88
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PostPosted: Mon Oct 20, 2008 7:12 pm    Post subject: Reply with quote

Did you try rebuilding gcc like I suggested in the other thread?
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pvos
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PostPosted: Tue Oct 21, 2008 7:30 pm    Post subject: Reply with quote

I've been struggling with my rp3410 as well the last few days ;).

You should generate a new config file as /usr/share/genkernel/parisc64/kernel-config. I used the default kernel config from the live-cd :

zcat /proc/config.gz /usr/share/genkernel/parisc64/kernel-config

Of course, you could also copy your .config from your /usr/src/linux dir

Next emerge kgcc64 ...

I then used gcc-config to make sure the correct gcc would be used :

gcc-config -l -> should list all the different gcc targets
Next use
gcc-config <number> <- number equals your target as , in my case 2 for hppa64

Next, the kernel source has this bug in /usr/src/linux/arch/parisc/Makefile :

Under the ifdef CONFIG_64BIT section , change cross-compile to :

CROSS_COMPILE := hppa64-unknown-linux-gnu- ( at least, that's what my hppa64 was named .. )

genkernel still wouldn't build all, so I manually build a kernel myself. Make sure you include all the essential drivers in the kernel itself ( scsi, ide, ext2 and ext3 ) , don't waste your time trying to debug why they don't load as modules ;). I mean, with 10 Gigs of memory, why bother with kernel size ;).

make && make modules_install

and then copied vmlinux to /boot.

Next I used :

genkernel initrd

to generate a initrd under /boot.

Make sure palo points to the correct initrd and vmlinux and you should finally be able to boot parisc64.


Last edited by pvos on Tue Oct 21, 2008 8:57 pm; edited 4 times in total
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pvos
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PostPosted: Tue Oct 21, 2008 7:42 pm    Post subject: Reply with quote

Small update :

My first boot next hung , displaying :

Id "b0" respawning too fast: disabled for 5 minutes

which seems to be related to some ancient mux shit. So I disabled the ttyB0 in /etc/inittab and removed the # before the ttyS1 line, which is my remote serial port.

Now the kernel boots until login, which doesn't work :(. Back to boot P2 to find out what the problem is.....
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pvos
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PostPosted: Tue Oct 21, 2008 7:52 pm    Post subject: Reply with quote

Ah,

"pam_securetty(login:auth): access denied: tty 'ttyS1' is not secure !"

pam related. Let's figure that out ;)......

Mmh, add ttyS1 to /etc/securetty. Let's see if that works....
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pvos
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PostPosted: Tue Oct 21, 2008 7:59 pm    Post subject: Reply with quote

Yeah, success at last ;).

This is mail.unknown_domain (Linux parisc64 2.6.25-gentoo-r7) 19:41:01

mail login: paul
Password:
Last login: Tue Oct 21 19:39:59 CEST 2008 on ttyS1
mail ~ #

( Actually my second login ... my first login wasn't captured in putty.log ).
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tenspd137
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PostPosted: Wed Oct 22, 2008 2:13 am    Post subject: Reply with quote

Yeah - I tried rebuilding gcc - no luck there. I am trying to use the kernel configs on the minimal install CD using make oldconfig in /usr/src/linux. (They suggested that on the gentoo-hppa irc chat node). That appears to be working so far. I also have the b0 problem which I am going to try to get rid of now after trying to compile a 64 bit kernel. Thanks to all who posted what they did here! I will post everything I did once I am done a well to help others.
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tenspd137
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PostPosted: Wed Oct 22, 2008 5:22 am    Post subject: Reply with quote

Well, almost there. The first 64 bit kernel I built worked, but I noticed a) it did not pick up all the memory I have
b) it was not SMP (I have 2 processors). Any idea how to make it see the extra memory (the point of the 64-bit kernel)? So far, I have made sure the memory is dicontinuous and the page size is set to 4 kb. Other than that - I don't know what else to activate in the kernel.

Thanks!
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pvos
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PostPosted: Wed Oct 22, 2008 8:51 am    Post subject: Reply with quote

I had the same problem ( the kernel only reported 1 Gb ).

Recompiling the kernel with CONFIG_SMP=y fixed that.
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pvos
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PostPosted: Wed Oct 22, 2008 8:32 pm    Post subject: Reply with quote

Mmh, the cciss driver doesn't seem to work with my 5300 array :(. The machine HPMC's when the driver sends a CISS_INQUIRY to get the firmware version. Since this is the first command where dma is involved , I suspect some big/little endian issue or maybe a misaligned struct.

Does anybody here have any experience in reading HPMC logs ?
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jer
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PostPosted: Sun Oct 26, 2008 3:35 pm    Post subject: Reply with quote

tenspd137 wrote:

b) it was not SMP (I have 2 processors).


This is a bit confusing - When a system has more than one processor, that's called symmetric multiprocessing or SMP...
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mattst88
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PostPosted: Sun Oct 26, 2008 9:24 pm    Post subject: Reply with quote

jer wrote:
tenspd137 wrote:

b) it was not SMP (I have 2 processors).


This is a bit confusing - When a system has more than one processor, that's called symmetric multiprocessing or SMP...


I think he meant that that the kernel wasn't SMP aware.
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