Tagged Questions
1
vote
1answer
36 views
Excluding kernel modules through /etc/modprobe.d/blacklist.conf does not work
I don't want to load the kernel module nouveau on my debian box at startup, so I put the following in /etc/modprobe.d/blacklist.conf:
blacklist ttm
blacklist drm
blacklist nouveau
I even did a ...
1
vote
1answer
42 views
Can kexec be built to a standalone binary, to be used where kexec was not built into the kernel?
I have remote embedded Linux devices I am trying to update to a new kernel without having to physically access. However, the command line options they boot with make one of the MTDs read only - I ...
0
votes
0answers
51 views
*ERROR* timed out waiting for panel to power on
I'm using Ubuntu 13.04 on Asus VX6 (1.8GHz Atom - 2 cores, optimus nVidia ION) with Kernel 3.9.0.
When I start my system I get this error:
[ 15.728106] [drm:intel_enable_lvds] *ERROR* timed out ...
1
vote
1answer
69 views
Booting encrypted root partion fails after system update
I have a problem booting my Debian Linux server. After a system update, GRUB loads the initrd and the system should ask for the password, but it doesn't. Instead, I get dropped to BusyBox. After ...
4
votes
1answer
48 views
Making a recovery partition in embedded Linux
I have an Atmel SAM9X system running Angstrom. I am trying to make a recovery partition so when a user holds a button during boot up the recovery partition boots up.
I have modified the bootstrap so ...
1
vote
0answers
78 views
Unable to install the selected kernel
I have problem with my DVD drive. It's corrupted and when I'm trying to install Ubuntu it stucks (even with the miniISO)
I was able to successfully start the OS from system rescue CD.
I'd like to ...
0
votes
1answer
73 views
How does kernel swapping / INT 13h interrupts work?
I'm looking for a way to learn about and understand this technique. Here's what I'm talking about:
Slax boots, {does stuff, like copy itself to RAM}, then transitions control to the kernel/file ...
0
votes
0answers
152 views
PC BSD 9.1 not loading after initial install
I just tried to install PC-BSD 9.1 on my Alienware m14x-R3 laptop (with Optimus support), and it refuses to boot. It will come to the bootloader screen, but when I attempt to boot, the actual kernel ...
2
votes
1answer
252 views
How to skip/exclude one SCSI bus from scanning during boot?
A "Linux debian 3.2.0-0.bpo.3-amd64 #1 SMP Thu Aug 23 07:41:30 UTC 2012 x86_64 GNU/Linux" system has at least 5 SCSI hosts:
root@debian:~# ls /sys/class/scsi_host
host0 host1 host2 host3 host4
...
2
votes
2answers
170 views
Why does a graphical install show my boot option, but a textual install not?
I have a system to install SLES 11 on, via a serial console. As this procedure is likely to be executed across multiple systems, I want to automate the whole process. As such, I first did a manual ...
2
votes
3answers
773 views
Given vmlinuz and initrd.gz, how do I find out, where the kernel is going to load / (root) file system from?
I'm trying various ways of Linux installation (from iso, flash, iso on flash, kernel on flash, root FS in iso-file on flash...) and want to understand what's going on.
My question is: is it possible, ...
0
votes
1answer
1k views
Kernel upgrade 2.6 to 3.5.3 on CentOS 5.8 -> switchroot: mount failed: No such file or directory
I upgraded kernel on my CentOS 5.8 from 2.6.18 to 3.5.3 and now it is unable to mount the root filesystem:
I could not find any explanation through Google. Can you point me in the right direction? ...
0
votes
1answer
167 views
Occasionally kernel panics during boot since 3.3.x with Sandy Bridge
Since kernel 3.3.x there are frequent kernel panics during the boot process. It seems to be a kernel problem since I downgraded to 3.0 and the problems are gone.
The kernel panics happen almost at ...
2
votes
1answer
197 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 ...
0
votes
0answers
2k views
could not find filesystem '/dev/root' [closed]
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
Red Hat nash version 5.1.19.6 starting
mount: could not find filesystem '/dev/root'
setuproot moving /dev failed: No such file or ...
5
votes
3answers
603 views
Does /init (or /linuxrc) script creates temporary device nodes in /dev?
Considering that GRUB executes following lines:
kernel /vmlinuz root=/dev/sda1 ro
initrd /initrd
On boot, how does the Linux kernel finds out about /dev/sda1 device node?
I know that ...
1
vote
1answer
283 views
Linux thin station
I have this pc that I just installed and set it up as Linux thin station. I did all the formatting procedures and copying of image to the HD. When I boot it up, I get these, which I think are driver ...
3
votes
2answers
658 views
Booting a newly compiled linux kernel
I have started reading the book Essential Linux Device Drivers. I am following the process for compiling and booting into a new kernel. However I am unable to boot into the newly compiled kernel - I ...
1
vote
2answers
1k views
How to add boot parameters in arch linux
I want to add i915.i915_enable_rc6=1 as a kernel line as described here but I'm unsure where/how exactly.
3
votes
2answers
214 views
How does the kernel “give up” control to distribution-specific initialization?
I've always wondered how the kernel passes control to third-party code, or specifically distribution-specific code, during boot.
I've dug around in GRUB's configuration files, suspecting a special ...
2
votes
2answers
2k views
Kernel Panic - not syncing: VFS: Unable to mount root fs after new kernel compile
So I've been at this for a while and have been poking around for an answer for a few days, and figure it's about time to ask for help. I am running Ubuntu 10.10 in VMWare Fusion, and have downloaded ...
4
votes
2answers
525 views
Multiple root options in Linux command line
My kernel command line looks like this:
root=31:0 ro noinitrd console=ttyS0,115200 root=/dev/mtdblock2 rootfstype=squashfs
I think the first root entry identifies a disk by its major and minor ...
3
votes
2answers
286 views
Choosing a device name under /dev from the kernel command line
I am booting CentOS via a USB install. The boot method is simply booting the ISO from GRUB2 installed on the USB Key.
The USB key always gets the "name" /dev/sda. Can I change that name from the ...
-1
votes
1answer
246 views
Set Kernel Root to Same Partition as Boot
Running GRUB, I want to set the kernel root parameter to the same partition (or more generically, to a partition on the same device) as the disk with the bootloader.
Initially, the install set the ...
2
votes
1answer
450 views
Kernel can not boot after upgrade on Fedora OS 15
I am using Fedora 15, and want to upgrade to version 16. I followed the official link Upgrading Fedora using yum - FedoraProject to upgrade my OS by the following command:
yum update kernel* ...
5
votes
3answers
1k views
Why does initramfs mount the root filesystem read-only
What is the reason for the root filesystem being mounted ro in the initramfs (and in initrd).
For example the Gentoo initramfs guide mounts the root filesystem with:
mount -o ro /dev/sda1 /mnt/root
...
4
votes
1answer
724 views
Silent booting Linux from u-boot
For security reasons I have to boot Linux from u-boot with all output hidden (silently) until a password is entered. I've configured uBoot to do this correctly using the CONFIG_AUTOBOOT_KEYED macro ...
1
vote
1answer
253 views
Coreboot + QEMU Tutorial Request (Google has failed)
Can anyone point me in the direction of an end-to-end idiot-proof coreboot+qemu tutorial?
I'm having trouble understanding how qemu is set up to emulate different hardware (also having trouble ...
2
votes
1answer
557 views
description of linux kernel boot parameters 'real_root' and 'cdroot'
I am looking for a formal description of the following boot parameters in the linux kernel:
real_root
cdroot
I have problems tuning them to create my own bootable LiveUSB system. Are they ...
4
votes
3answers
3k views
Kernel panic - not syncing: No init found. While booting from U-Boot
Kernel mounted the root file system but can not find any init script. I'm sure that script exists in my ramdisk.img!
I also checked out this and GE863-PRO3 U-BOOT Software User Guide 1VV0300777 Rev. ...
11
votes
1answer
634 views
Rebooting without shutting off?
I have been using Linux Mint Debian with Debian unstable and noticed that when I press restart, instead of going all the way back to the BIOS, then grub, then booting up, I seem to be shutting down ...
1
vote
0answers
162 views
Arch Linux not functional after kernel upate [duplicate]
Possible Duplicate:
Arch Linux not booting after system update
After running a system update, in which the kernel was updated, when I try to boot Arch (in single user, not quiet), I get the ...
3
votes
1answer
419 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 ...
3
votes
6answers
4k views
How does a kernel mount the root partition?
My question is with regards to booting a Linux system from a separate /boot partition. If most configuration files are located on a separate / partition, how does the kernel correctly mount it at boot ...
4
votes
1answer
614 views
Booting without initrd
Is it possible to boot linux without a initrd.img ? I am planning to add default drivers as a part-of-kernel itself and avoid initrd completely.
What are the modules that should be made ...
1
vote
1answer
746 views
Creating new initrd without installing kernel
How can i create initrd image for a new(experimental) kernel without actually installing it.
(Existing tools to create initrd based on config and details from installed kernel.)
Say i compile a new ...
3
votes
1answer
325 views
Graphical boot-up screen lost after upgrading the kernel
I used the Ubuntu 10.10 alternate install CD to install Maverick to an encrypted partition on a USB stick. This worked perfectly, but after the first cycle of updates that took the kernel from ...
1
vote
2answers
606 views
How to change the install path of my Linux Source tree?
I was trying to bring up my custom kernel. I did the following :
$ make menuconfig && make modules && make modules_install && make install
I would like to change the ...
6
votes
3answers
961 views
What happens after loading the linux kernel image into RAM
I just to want to know the flow of activities happening after loading the linux kernel image into the RAM after boot process.
6
votes
5answers
4k views
Is it possible to put root in LVM without using initrd?
I have just set up a Gentoo base system (which means I can boot and log in and do stuff with it now). My root partition is in an LVM2 virtual group (with a separated /boot partition). In order to boot ...
5
votes
5answers
2k views
How should I configure grub for booting linux kernel from a USB hard drive?
I have a laptop hard drive in an external enclosure which I use as a large pendrive. For an added twist, I have installed Linux on it, so I can boot any machine with my distribution of choice (e.g. ...
