Gentoo Archives: gentoo-user

From: Billy Holmes <billy@××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Kernel 2.6.22-r9 installation problems
Date: Mon, 19 Nov 2007 04:41:09
Message-Id: 47412092.1040104@gonoph.net
In Reply to: [gentoo-user] Kernel 2.6.22-r9 installation problems by Jeff Cranmer
1 Jeff Cranmer wrote:
2 > Cannot open root device "sda3" or unknown block (0,0)
3 > Please append a correct "root=" boot option.
4 > Here are the available partitions
5 >
6
7 run "make menuconfig" in your new kernel dir.
8
9 check to ensure ext3 is compiled in. (not sure why it wouldn't be)
10
11 check to make sure you've got udev or devfs installed properly in both
12 kernels (maybe one isn't defined in the kernel, and the old kernel had
13 it). I'd really try to ensure you're running udev and not devfs, but
14 first things first.
15
16 IF SATA:
17 Make sure the proper SATA options are the same for each kernel. There's
18 one SATA option that isn't compatible with another SATA option. (it
19 could be fixed in newer kernels by now)
20
21 IF SCSI:
22 Make sure all your SCSI options are the same for each kernel.
23
24 also you can compare the two configs of each kernel.
25
26 Compare Option #1:
27
28 # diff -u kernel-old/.config kernel-new/.config
29
30 Compare Option #2:
31
32 # vimdiff kernel-old/.config kernel-new/.config
33
34
35 You can also pipe #1 through less (or more).
36 --
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