Tagged Questions
1
vote
1answer
167 views
USB3 Hard Drive Not Recognised by Linux
My external USB 3 hard drive is behaving very strangely:
If I plug it into a USB 2 port, it works fine
If I plug it into a USB 3 port, it doesn't work at all. It's not even mentioned in ...
2
votes
1answer
199 views
Gentoo Kernel failing to boot
My machine has two hard drives -- /dev/sda and /dev/sdb.
The first has Ubuntu installed. On the second, sdb, I want to install Gentoo.
I did all the installation steps, chrooted and compiled the ...
4
votes
1answer
508 views
How can I use netconsole to help solve a kernel panic?
When I try to use a raid as root, my system panics.
I want to read the kernel output right before the panic, but can't scroll up.
After Googling a bit, I wanted to try netconsole.
but I get no output ...
3
votes
2answers
324 views
Launching Gentoo from external hard drive
I have an external hard drive (Transcend TS500GSJ25M - not sure M1, M2 or M3, but guess it's M1) and I'd like to install Gentoo on it. It's pretty easy, using genkernel, though it compile a lot of ...
5
votes
3answers
1k views
How do I tell what version of Gentoo & Linux is running?
Is there a way to tell from Bash what distro version # I'm running and also what Kernel version is included?
3
votes
1answer
1k views
Change the number of generated /dev/tty devices
I'm building an embedded Linux system, based on Gentoo. Using udev, all tty devices are probed with a PROGRAM stanza to determine if they are a modem.
Right now the system boots up with 64 /dev/tty*. ...
2
votes
1answer
3k views
How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
From what I have checked it looks like kernel side of 'perf' subsystem is enabled on computer I work on.
Checking kernel configuration shows the following
$ zgrep "_PERF[_= ]" /proc/config.gz
...
3
votes
1answer
446 views
Safe to delete System.map-* files in /boot?
I'm experimenting with generating some custom kernels using genkernel.
However, each iteration leaves a file in /boot called System.map-genkernel-<arch>-<version>.
Is it safe to rename ...
1
vote
1answer
505 views
Where is CONFIG_COMPAT_VDSO in make menuconfig?
I'm trying to compile a Linux Kernel to run light and paravirtualized on XenServer 5.6 fp1.
I'm using the guide given here: ...
4
votes
1answer
407 views
How to use the EXTRA_FIRMWARE_DIR kernel option?
I am using Gentoo, and I need to load an extra firmware to get my USB Wifi adapter work. I found an EXTRA_FIRMWARE_DIR kernel option, but I do not understand if it is used during compile time only or ...
2
votes
5answers
2k views
Kernel can't find /dev/sda file during boot
I configured a gentoo kernel (kernel-2.6.36-gentoo-r5), but when I boot it can't mount /dev/sda1:
ALERT! /dev/sda1 does not exist . Dropping to a shell .
I use the shell to go to the /dev ...
