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Dualboot gentoo with windows 7 on a separate disk
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xobust
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Joined: 25 Dec 2013
Posts: 3

PostPosted: Thu Dec 26, 2013 10:35 am    Post subject: Dualboot gentoo with windows 7 on a separate disk Reply with quote

Hi all.
I'm trying to boot gentoo from a 1Tb (sdb) disk beside my Windows SSD(sda).

So I have successfully partitioned my drive and installed gentoo, but
I didn't have any space for a boot manager partition on my ssd so I installed Neogrub (easyBCD).

But I just can't get my kernel to boot, it either panics or fails to mount sdb.
It is strange because I could boot a gen kernel, sadly I could not use the gen kernel because it
didn't support my network card.

Here is my menu.lst
Code:

title gentoo
root (hd0,7)
kernel /boot/kernel root=/dev/sdb6
quiet
savedefault
boot


and here is my partition scheme
Code:

ssd:

System reserved
NTSF
SSD reserved

hdd:
ntsf

extended partition
{
ext (unused boot parition)
swap
ext4 (gentoo)
}

encrypted file system


Thanks for any help.
I'm a linux noob, but i do know computers
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Roman_Gruber
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Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Thu Dec 26, 2013 12:41 pm    Post subject: Reply with quote

Quote:
But I just can't get my kernel to boot, it either panics or fails to mount sdb.
It is strange because I could boot a gen kernel, sadly I could not use the gen kernel because it
didn't support my network card.


There is an option to edit the genkernel created kernel before building it with genkernel.

The better way is to use the genkernel config for the linux kernel and enable the support for your network card (NIC) and than rebuild the kernel.

A starting point: https://wiki.gentoo.org/wiki/Kernel/Gentoo_Kernel_Configuration_Guide

2nd. You could make a bootable USB Pendrive too if you have an unused lying around. Any small drive is enough for such a task.
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OldTango
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Joined: 21 Feb 2004
Posts: 603

PostPosted: Sat Dec 28, 2013 5:09 pm    Post subject: Re: Dualboot gentoo with windows 7 on a separate disk Reply with quote

xobust wrote:
But I just can't get my kernel to boot, it either panics or fails to mount sdb.
It is strange because I could boot a gen kernel, sadly I could not use the gen kernel because it
didn't support my network card.

When the kernel fails, what messages if any does it report? It should give you some indication as to why it failed.

You may be pointing your boot loader to the wrong locations or you haven't the proper drivers or file system support built into your kernel. My approach would be to get the kernel to boot first than solve the network card issue.

Manually configuring a kernel is both tedious and time consuming and using the GenKernel guide may be another option. However if you want to configure your kernel by hand, than I recommend you have a look at Working with Pappy's Kernel Seeds for some great information on how to properly configure any kernel so it will boot.
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