Tag: dracut

Linux

AHCI, chroot, dracut, grub, initramfs, kernel modules, Kernel panic, Lenovo T420, lspci, root, unknown-block, VFS, VMware

‘Cannot open root device’ or ‘volume group xxx not found’ when booting with a Linux Kernel

Problem VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown block(0,0) Or Volume group "vgubuntu-studio" not found Cannot process volume group vgubuntu-studio Gave up waiting for root file system device. Root Cause SATA/SAS controller driver not […]

2023-07-212023-07-210

Linux

bootloader, dracut, genkernel, gentoo, grub, Linux, lvm

Migrage Root from Physical Disk Partition to LV and Rebuild the Bootloader

1. Install Tools for Generating Initramfs emerge -avt genkernel # both genkernel and dracut are fine, # 'darcut' is more recommended. emerge -avt dracut For genkernel FILE /etc/default/grub Adding dolvm as a kernel boot parameter GRUB_CMDLINE_LINUX="dolvm" For dracut FILE /etc/default/grub Adding LVM support to the kernel boot parameters GRUB_CMDLINE_LINUX="rd.lvm.lv=vg00/lv_root" 2. Create LV and Migrate Data # […]

2022-12-090