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Installing Gentoo on a Soekris net6501-50
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piwwo
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Joined: 19 Jun 2013
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PostPosted: Thu Jun 20, 2013 11:21 am    Post subject: Reply with quote

OK, back again. I first used the minimal.iso. That one boots but then fails to mount /

Code:

>> Keeping default keymap
>> Making tmpfs for /newroot
>> Looking for cdrom
!! Media not found
!! Could not find CD to boot, something else needed!
>> Determining root device...
!! Could not find root block device in .
    Please specify another value or: press Enter for the same, type "shell" for a shell, or "q" to skip...
root block device() :: _


I tried to enter the shell and find a device in /dev but it shows only ram0-ram15 usb1-6, no sdx or similar...
None of these divices work. (Edit: In the syslinux.cfg it says root=/dev/ram0 but that one I can not mount either).

The tried the livedvd-x86-amd64-32ul-20121221.iso and it does NOT boot. Same problem as before... Also it has a syslinux.cfg but also grub. I dont know what one it starts but it does not work...
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piwwo
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PostPosted: Thu Jun 20, 2013 11:57 am    Post subject: Reply with quote

I tried all parameters now that I could figure it either does not boot or would not find root block device
What the heck is wrong here why can't I get that thing to run?!

PS: Yes I used google with that error and all I could find was some old posts that solved the problem with scsi settings on BIOS - nothing for this soekris here or that the kernel has no support for the fs build in (ext3 instead of ext4) and that it was solved by recompiling kernel but - how can I compile the kernel when the system is not booting at all?
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piwwo
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PostPosted: Thu Jun 20, 2013 2:04 pm    Post subject: Reply with quote

BTW, writing Debian with unetbootin on the stick works successfully and normal. Installer boots up, hardware gets detected, networks are configured and everything works. Only problem: I didn't want to use debian...
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pa4wdh
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PostPosted: Thu Jun 20, 2013 7:11 pm    Post subject: Reply with quote

I can't get the full set of kernel parameters for you now, i'm sorry, i hope to be able to do that tomorrow or in the weekend. However, i did not change anything to all the parameters, just added the console=ttyS0,19200n8 statement and kept the rest the way it was.

On the other hand: If you got Debian booting, isn't that a good point to start building you gentoo system from there ? It usually doesn't matter what you boot, as long as it's a linux distro you can install gentoo from it.
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NeddySeagoon
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PostPosted: Thu Jun 20, 2013 7:31 pm    Post subject: Reply with quote

piwwo wrote:
how can I compile the kernel when the system is not booting at all?


Plug your memory stick into another Linux system.
Mount the root filesystem from the memory stick at /mnt/gentoo
Follow the handbook to chroot.

Now you are inside your Gentoo an may build and install the kernel in the normal way.

Your error message that shows
Code:
!! Could not find root block device in .
Tells that your kernel loaded but cannot see any block devices at all. There should be a list block devices after the word "in" and before the period.

This suggests that :-
a) your kernel has no support for your motherboard chipset
b) you need to use an initrd but have not loaded it, or maybe not told the kernel about it
c) have root on USB.

Root on USB is a particular problem as root is normally mounted before USB is started. Thats a problem if root is on USB.
You need the kernel parameter rootdelay=<seconds> to let USB start before the kernel looks for root.
On a normal PC, <seconds> between 7 and 30 works.
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piwwo
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PostPosted: Fri Jun 21, 2013 8:00 am    Post subject: Reply with quote

Yes that's why I installed Debian on a small 8GB partition and will work from there trying to get a System running. Thank you all so far for the support.

If someone runs into similar problems installing Gentoo on boxes like soekris maybe this thread helps... Don't start messing with grub, instead Unetbootin is a good start!

BTW. Debian runs a i686 kernel... so it IS possible to install i686 on the net6501
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pa4wdh
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PostPosted: Sun Jun 23, 2013 10:59 am    Post subject: Reply with quote

I've done some performance tests and amd64 with an SMP capable kernel (for Hypterthreading) gives your the best performance.
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USE="-war" emerge --newuse world

Free as in Freedom is not limited to software only:
Music: http://www.jamendo.com
Recipes: http://www.opensourcefood.com
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