Boot process hangs at dracut: Switching root

Solution Verified - Updated -

Issue

  • When server is booting the boot process hangs at dracut: Switching root, and never displays anything else.
device-mapper: ioctl: 4.33.1-ioctl (2015-8-18) initialised: xx-xxxx@redhat.com
udev: starting version 147
dracut: Starting plymouth daemon
dracut: rd_NO_DM: removing DM RAID activation
dracut: rd_NO_MD: removing MD RAID activation
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc120 irq 14
ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc128 irq 15
Refined TSC clocksource calibration: 2599.999 MHz.
virtio-pci 0000:00:03.0: PCI INT A -> Link[LNKC] -> GSI 11 (level, high) -> IRQ 11
virtio-pci 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ 10
virtio-pci 0000:00:07.0: PCI INT A -> Link[LNKC] -> GSI 11 (level, high) -> IRQ 11
virtio-pci 0000:00:08.0: PCI INT A -> Link[LNKD] -> GSI 11 (level, high) -> IRQ 11
input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
 vda: vda1 vda2
dracut: Scanning devices vda2  for LVM logical volumes vg_unused/lv_swap vg_unused/lv_root 
dracut: inactive '/dev/vg_unused/lv_root' [8.51 GiB] inherit
dracut: inactive '/dev/vg_unused/lv_swap' [1.00 GiB] inherit
EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: 
dracut: Remounting /dev/mapper/vg_unused-lv_root with -o noatime,ro
EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: 
dracut: Mounted root filesystem /dev/mapper/vg_unused-lv_root
dracut: Loading SELinux policy
type=1404 audit(1479934528.427:2): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295
type=1403 audit(1479934529.195:3): policy loaded auid=4294967295 ses=4294967295
dracut: 
dracut: Switching root

Environment

  • Red Hat Enterprise Linux 6

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