Why does PXE boot for Red Hat CoreOS 4.2 hang during early dracut-cmdline parsing?

Solution Verified - Updated -

Issue

  • Why does PXE boot for Red Hat CoreOS 4.2 hang during early dracut-cmdline parsing?
  • The Red Hat CoreOS installation hangs with messages below on screen.
[   1.640997] systemd[1]: Detected virtualization vmware.
[   1.640552] systemd[1]: Detected architecture x86-64.
[   1.640662] systemd[1]: Running in initial RAM disk.
[   1.648022] systemd[1]: No hostname configured.
[   1.648191] random: systemd: uninitialized random read (16 bytes read)
[   1.648384] systemd[1]: Initializing machine ID from random generator.
[   1.777488] ramdom: systemd: unitialized ramdon read (16 bytes read)
[   1.777869] systemd[1]: Listening on Journal Socket (/dev/log).
[   1.778128] ramdom: systemd: unitialized ramdon read (16 bytes read)
[   1.778390] systemd[1]: Listening on Journal Socket.
[   1.778585] systemd[1]: Reached target Slices.
[   1.815822] Loading iSCSI transport class v2.0-870.
[   1.893964] dracut-cmdline[247]: dracut-42.80.20191002.0 dracut-049-10git2019115.el8
[   1.894452] dracut-cmdline[247]: Using kernel command line parameters: rd.driver.pre=dm_multipath ip=dhcp rd.neednet=1 initrd=boot/rhcos-4.2.0-x86_64-initramfs.img console=tty0 console=ttyS0 coreos.inst=yes coreos.inst.install_dev=sda coreos.inst.image_url=http://hosted.example.com/openshift/4.2/rhcos-4.2.0-x86_64-metal-bios.raw.gz coreos.inst.ignition_url=http://hosted.example.com/unattended/provision?token=6e709457-254e-4c2e-8226-xxxxxxxxxxxx BOOT_IMAGE=boot/rhcos-4.2.0-x86_64-installer-kernel
  • Here is the PXELinux file in use.
DEFAULT pxeboot
TIMEOUT 20
PROMPT 0
LABEL pxeboot
    KERNEL boot/rhcos-4.2.0-x86_64-installer-kernel
    APPEND ip=dhcp rd.neednet=1 initrd=boot/rhcos-4.2.0-x86_64-installer-initramfs.img console=tty0 console=ttyS0 coreos.inst=yes coreos.inst.install_dev=sda coreos.inst.image_url=http://hosted.example.com/openshift/4.2/rhcos-4.2.0-x86_64-metal-bios.raw.gz coreos.inst.ignition_url=http://hosted.example.com/unattended/provision?token=6e709457-254e-4c2e-8226-xxxxxxxxxxxx 

Environment

  • Red Hat CoreOS 4.2

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