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Questions tagged [dracut]

dracut is a Linux initramfs environment, initially written for Fedora.

21 questions
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2 answers

CentOS7 Dracut lvm command not found

I updated CentOS7 kernel because of Meltdown issue from 3.10.0-693.11.1 to 3.10.0-693.11.6, but after that update, I cannot boot as centos drop to the dracut with error warning /dev/mapper/centos-root does not exist dracut:/# ls…
user979291
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6 answers

centos7: boot error dracut-initqueue after converting virtual disk

I installed centos7 on Ubuntu 16.04 KVM with qcow2 disk format. To deploy my centos maschine I need it in vhdx disk format to support Microsoft's Hyper-V. I used qemu-image to convert it from qcow2 file format to vhdx. qemu-img convert -O vhdx…
Volker Raschek
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2
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2 answers

PXE boot CentOS 7.2 diskless fails with "Failed to start Switch Root"

I am setting up a CentOS 7.2 server so clients can boot a diskless CentOS 7.2 image. I have done this with CentOS 6.6 and it works fine over multiple servers and clients over many years. Using the same configuration parameters.…
John Hupcey
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2
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1 answer

Fresh CentOS 7.2 VM hangs before asking for drive password after initial yum update and subsequent crash

Sequence of events: Start install CentOs 7.2 using Everything ISO in Vmware vSphere 5.5 Choose Server with Gui, manual partitioning, encrypted sdd contains /home, /data Initial boot is great, fast, works; requests partition password, login with…
tacos_tacos_tacos
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1 answer

CentOS: After Kernel Update system does not boot (/dev/md2 does not exist)

after doing a kernel-update (only via yum update) my centOS 7 (64bit) does no longer boot. I now booted into rescue-mode and tried to mount /dev/md2 - this worked fine: Any ideas what I could do here?
MyFault
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2
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1 answer

dracut-pre-trigger rd.md=0 removing md raid activation boot fails

The system is Fedora 22, recently upgraded from Fedora 21. The remaining kernel from Fedora 21 boots. The two kernels installed after the upgrade fail to boot. The system is an Intel S-5000 PAL with 5 SATA drives configured in raid 5 array. It has…
dan sawyer
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2 answers

How can I secure the dracut shell?

When there are errors during the initrd part of a system boot, dracut will drop to a shell (so you can fix things). Is there a way to require a password before going into the shell, in the manner that Debian's initramfs-tools rescue shell works? I…
asciiphil
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0 answers

Customized Red-Hat 6.7 to 7.4 upgrade

I have a customized RHEL6.7 server, it has several LVM2 partitions, the root volume is LVM2 based and is located on: stats/rootvol im editing the current GRUB (0.97 which part of RHEL67) to look like that (some params are for debugging, i…
joe
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0 answers

Centos 7 ISCSI diskless boot with ibft

I have diskless server system, based on Centos 7. It receives targets specified in NIC bios and boots. The problem is - the system has very low iSCSI failure timeout, it fails in 5 seconds. Here is what i tried: editing parameters in…
Mizeraj
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1 answer

CentOS 7 (dracut) is finding inconsistent network device names causing problems for kickstart

I use the boot options biosdevname=1 net.ifnames=1 in order to get consistent, predictable device names. I'm starting to notice a problem where in some cases, the network device names are not consistent. For example, if I drop to a dracut debug…
guzzijason
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1 answer

Why do I have a dracut initramfs in /var/tmp?

I never used dracut so far. I understood dracut filesystems (Wiki) as temporary systems that help mounting system specific kernel modules during the boot process. But after successful boot of my SLES 12 Server VM I still have a dracut file system…
TheCooocy
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1 answer

CentOS: Install dm-raid module into initramfs to enable lvm raid boot?

I have CentOS 7, and I want lvm mirrors on my root logical volume. I had some panic after I used "lvconvert -m3 cl_excalibur/root" to create two mirrors, and it would not boot. The logical volume does not activate at boot when it is raid1. I booted…
Charlweed
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1 answer

PXE Boot Does Not Pass Kernel Boot Parameters to /proc/cmdline Centos 7.2

I have a PXE boot server (everything is inside vmware) with a label that is configured as follows: label 2g kernel centosX64_7.2 append text nofb load_ramdisk=1 initrd=centosX64_72.img network ks=http://kickstart/ks/centos72.cfg…
user3081519
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2 answers

Unable to create CentOS 7.2 Kickstart DVD

I'm quite new to the kickstart concept and I've been reading and testing this for the past few days and I'm having an issue I can't seem to find anywhere on the web right now... At first I wanted to create a PXE boot kickstart installation, but this…
Marc Girard
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2 answers

Dracut-Kernel update required but won't when running Yum on Centos 6.6

I'm a fair newbie when it comes to Linux, but I'm having problems updating a small Centos 6.6 box that's been working fine and updating previously. When running yum update I get the error below. I've tried running yum -clean all as per another post…
Dae
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