Bootloader issues: what happens before the operating system itself starts.

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11 views

TPM passwordless boot

I'm trying to create device with CentOS6, encrypted disk (with LUKS), TPM module and TrustedGRUB to boot securely and without interaction. I'm following instructions from ...
2
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0answers
21 views

How do I disable hardware detection during PXE boot?

I'm atttempting to install centOS 6.5 on a new dell machine through PXE boot. The PXE boot works fine for other PCs, just the new workstations are problematic. The PXE boot hangs on "Detecting ...
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1answer
29 views

Command set in /etc/rc.local on Ubuntu 13.04 is ignored

I am trying to set my Ubuntu 13.04 machine in a way that, upon reboot, an instruction is executed and a program is launched with specific parameters, REGARDLESS of whether a user is logged on to the ...
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0answers
30 views

Grub doesn't recognize windows 8

Recently, I installed Windows 8.1 and Linux Mint Debian Edition on a new laptop. Neither installs seemed to have any issues, and both operating systems run well. However, the only way I can switch ...
2
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1answer
38 views

No logical volume groups found, LVM stuck at boot

I'm running Ubuntu 14.04 (64bit). Long story short, I've compiled a custom kernel and now I'm running into some issues with my encrypted hard drive. When I boot my machine and attempt to start the ...
1
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1answer
761 views

Can't boot truecrypt's rescue.iso on usb using UNetBootin

I tried Unetbootin to put the truecrypt rescue.iso file on a USB stick, but the USB stick does not boot properly. It gets into an infinite loop with boot default in 10 seconds over and over again. ...
0
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1answer
17 views

No such device: grub rescue

I have got a machine with Windows and Linux Mint. Now that I needed to upgrade my Mint because I needed the new fixes, I cannot boot. I get the error message no such device, grub rescue. My guess is ...
2
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1answer
439 views

Boot partiotionless disk with syslinux

A file system can be configured to span a complete disk, omitting any partition table. Notice intentionally the command to do so does not use /dev/sda1 but the raw, unpartitioned device instead. ...
2
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1answer
455 views

Booting from ISO in Xen Paravirtualized Environment

Specifically, Citrix XenServer 5.6. I can map the an ISO from a Storage Repository with no issues and mount it inside the OS but I can't boot from the DVD drive without converting it to HVM, which ...
3
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0answers
66 views

windows 7 reinstallation killed grub

I have been running dual boot windows7/ubuntu. Recently I reinstalled windows 7, and I no longer have the option to boot to ubuntu. I would like to be able to get my dual boot working again or at ...
3
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0answers
49 views

UEFI install (14.04) boots to GRUB command prompt, no GUI

I just installed zorin 9 core (14.04) on my Hard-Disk in UEFI mode. But, when I boot, all that comes up is a GRUB2 command line. I've searched for solution and came up with this command configfile ...
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2answers
524 views

Fedora 19 - Booting doesn't show login screen

I have done some common updates in my system, and now I have the following problem: It starts as usual, loading services, but when trying to launch the login screen (I use KDE), it stops and show me ...
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21 views

Ubuntu and Windows dual boot problem [duplicate]

I installed Ubuntu 14.04 on a computer that has Windows 8.1 preinstalled, following the next link http://itsfoss.com/install-ubuntu-1404-dual-boot-mode-windows-8-81-uefi/ This are the ...
1
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1answer
350 views

Installed Centos 7 after Windows and can't boot into Centos

I wanted to setup a dual boot for Windows 7 and Centos 7 I had a Windows 7 machine with 500GB disk. I shrank the Windows partition to provide space for Centos 7 (roughly 230GB). I created a USB ...
1
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1answer
282 views

Can't boot into single user mode

I hosed my login (bad script /etc/profile.d) and I can't SSH into my system or boot it into single. I append " single" to the end of the kernel boot parameters and it just keeps booting like normal. ...
1
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1answer
15 views

Delay Debian WiFi Networking Auto-Connect until after X and other applications are started

I've been profiling my boot times with bootchart and it seems that wpa_supplicant and dhcp take a significant amount of time during the boot process to get up and running and associate with my home ...
2
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1answer
372 views

Python script run while screen is locked

I have a python script which seems to be failing to continue running its while True: ... sleep() loop my code is at http://github.com/xdaimon/xdaimonConky What happens is I autostart python on ...
2
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0answers
42 views

How to make grub Command Line Default?

I'd like to make grub by default load it's command line instead of automatically booting from it's list of options generated by update-grub. How can I do this?
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4answers
14k views

What is the difference between LILO and GRUB?

I am running a web server under Debian and I currently have GRUB installed. Should I consider using LILO instead of GRUB? And what are the advantages of each?
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0answers
25 views

Multiple Windows 7 installations from Grub

I have the following disk configuration: Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors Units = sectors of 1 * 512 = 512 bytes ...
0
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1answer
19 views

Graphical boot ModeLine

Bit of a weird requirement. I have an arcade machine running Linux. The arcade monitor requires the video signal to be at 15khz, so I achieve this with a modeline in xorg.conf, it works great. There ...
1
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1answer
630 views

Windows 8.1 not appearing on grub after Linux Mint 16

I had followed a tutorial to install Linux Mint 16 Cinnamon and it works perfectly fine, currently using it to post this question. But when grub loads the only 3 options I am given, are Linux Mint, ...
2
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2answers
1k views

slitaz 4.0 grub2 loopback concatenate multiple initrd images

I'm trying to get slitaz 4.0 ISO to boot using a grub2 loopback on a multiboot USB; insmod font if loadfont /boot/grub/unicode.pf2 ; then insmod gfxterm # insmod efi_gop # insmod efi_uga ...
2
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1answer
53 views

How do I resolve an error when booting, “Couldn't find device with UUID…”

I have a RHEL 6 system, running on a VMWare machine. The admin of the VM server added a second RAID volume to the server, which my RHEL system does not use. Now, when I boot the RHEL system, I get a ...
2
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1answer
999 views

Debian init runlevels

It used to be that when you booted most linuxes, you would boot into runlevel 6, unless you did something during the bootloading to change the runlevel,. The process would then look in ...
1
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1answer
632 views

How to access u boot environment from linux?

How can I access and change the u-Boot env variables in linux. Using the u-boot/tools/env directory in u boot directory: u-boot$ make env Which created the executable file fw_printenv. I copied ...
0
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0answers
13 views

looking for a kernel hack [migrated]

I have am Samsung g4 with borked code and for forensics and repair reasons, I need to extract/pull a copy of the running kernel from the /boot sector which is only accessible via Odin. I have the ...
2
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2answers
690 views

Debian won't boot: udevd fails to load device sda and sdb

I can't boot my Debian system, I got this error during boot up: Driver 'pcspkr' is already registered, aborting. I have solved this by adding blacklist snd-pscp to /etc/modprobe.d/blacklist.conf ...
4
votes
1answer
386 views

Setting up HDMI output from Linux console

I am currently running Debian Wheezy on a HP Microserver N54L with an AMD Radeon 5450 video card. I would like to be able to play audio from the console through the HDMI port of my video card and ...
3
votes
2answers
2k views

Why is GRUB 2 booting so slowly?

I have a small custom embedded Linux distribution (created with OpenEmbedded), which boots with GRUB 1.99. The aim is to have it start up fast. Currently it says: GRUB loading. for ~2+ seconds ...
0
votes
1answer
1k views

Debian 6 Gnome black screen after boot

I installed Debian a few weeks ago, and the last time I ran apt-get update, I think it updated something xorg/xserver, not sure. Since then i get a black screen after boot. If I go into recovery mode ...
0
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1answer
920 views

“Home Directory / Not Ours” on boot

I get the line Home Directory / Not Ours repeated about 30 times when i boot Debian. This has recently started happening since i did an update where everything was stuffed up. eg. Gnome and gdm3 ...
5
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3answers
3k views

How to get rid of the “scanning for btrfs file systems” at start-up?

After upgrading from Ubuntu 12.04 to Ubuntu 12.10, I get a message "scanning for btrfs file systems" at starting-up. I don't have any BTRFS filesystem. It delays the booting for about 15 seconds. How ...
5
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0answers
34 views

How to Pass High Resolution from GRUB2 to FreeBSD?

I boot FreeBSD-10-RELEASE from GRUB2. I have set up the GRUB2 boot menu to display very nicely at my laptop's max resolution of 1024x768x32. I know it's possible to pass this resolution to the boot ...
0
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0answers
72 views

RHEL server Booting problem: "fsck.ext3: unable to resolve 'LABEL=/u01'

We had an old Linux server in the workplace for last few years, so I decided to turn it on and it's showing this problem during boot up: No devices found Setting up Logical Volume Management. ...
3
votes
2answers
2k views

hibernate to disk not restoring, but suspend to ram is working

I have Debian 6, I have also seen this under Ubuntu (can not remember how I fixed it). I can hibernate, but when I switch on the system cold boots (it does not restore previous session). Note ...
5
votes
1answer
251 views

UEFI boot Fedora from USB 2.0 on 3.0 port (l75d-a7280)

I'm trying to make a bootable usb in ubuntu for fedora, but my settings are not working. I formatted the USB with FAT & Ext4, MBR, and Legacy BIOS bootable. My BIOS allows the USB 3.0 controller ...
4
votes
1answer
1k views

grub error : “File not found” for separate /boot/efi partition

I've installed CentOS 6.4 on UEFI enabled machine, created /boot/efi partitions. But my grub is not automatically starting, if I start the PC, I start in Windows 8. I can only start CentOS by ...
0
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1answer
41 views

Howto to boot an attached external hard disk (without formating)? (Solution: Repair grub easily)

I have a former internal hard drive, which I now use as external USB drive. I tried to boot from it, but it doesn't work (2 PCs tried, on my: blank screen + blinking cursor). This - I think - is ...
2
votes
0answers
44 views

Problem booting using Live USB on MAC

I have tried creating a bootable Linux USB that i want to use on MacBook Pro 2013. I used 'MAC Linux USB Loader' to do that. Linux distros I tried it with: Slack puppy and DSL (Damn small linux) ...
2
votes
3answers
170 views

Why is kernel boot starting too late

Log message from ARM Cortex A9 based board. Running linux. [Sat Apr 12 19:33:50.207 2014] [Sat Apr 12 19:33:50.207 2014] [Sat Apr 12 19:33:50.207 2014] U-Boot 2013.07 (Apr 09 2014 - 12:31:52) ...
5
votes
1answer
1k views

Booting a file system image from a HDD using GRUB2 with persistence

How do I preserve changes I make to files when running an operating system that is booted - using GRUB2 - from a file that contains a file system. I managed to get GRUB2 to boot an image file that ...
3
votes
1answer
45 views

Built the kernel with NFS support but not getting /dev/nfs

I'm trying to build kernel 3.13.9, fetched using apt-get source, and built in a clean debootstrap chroot (both host and chroot being installations of Ubuntu Trusty). My goal is to boot a diskless ...
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2answers
47 views

Dual Boot GRUB2

I just installed EasyBCD for my dual boot laptop (Windows7 and Ubuntu 14.04). Everything works great, however if I choose the Ubuntu option on loading, the next screen it takes me to is GRUB2 with the ...
0
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1answer
70 views

Installing RHEL6.5 by swapping RPMs

BACKGROUND So I've been tasked with updating a system from RHEL6.0 to RHEL6.5 via a bootable USB. Due to size limitation, I've stripped (using the rpm -e command to prevent dependency errors) ...
0
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1answer
878 views

Arch Linux Live USB no longer booting UEFI

My Lenovo laptop is running Arch Linux with a UEFI GPT partition table. One day I powered up my laptop, but couldn't get passed the Lenovo boot screen. I used a USB stick to boot up and reinstall ...
0
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0answers
3 views

Dual boot intermittant problem using Ubuntu 14.04 and Windows 7 [migrated]

I have a problem with the grub2 loader sometimes. More often, when I choose Windows 7 in the grub2 loader, it hangs on the purple screen. I have looked up and down the internet for an answer and ...
1
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1answer
324 views

System Halt on REBOOT, Shutdown & Restarts as expected

Recently went from Centos 6.4 to Centos 6.5. System is Dell T410 Tower. Whenever I reboot, system runs through post, passes IPv4 Settings, then announces: PCIe Training Error: Slot 1 system halted ...
1
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1answer
44 views

Recover from Grub error

I use windows as well as Linux in one laptop. I don't know what I deleted in the partition settings. Suddenly when I restarted my laptop, it showed me the below error message. GRUB loading. Welcome ...
4
votes
2answers
198 views

ERROR: Root device mounted successfully, but /sbin/init does not exist

I've installed Linux Mint and Manjaro Linux on my computer. I installed only the Linux mint on the MBR. For Manjaro, I created a /boot/efi partition, but I have not checked to install to MBR. So, I ...