Recover from panic screen - dcasota/photonos-scripts GitHub Wiki

During some Ph5 make builds a panic screen happened after a reboot.

Here a recipe to process:

• Boot from a Photon OS install iso.
• switch to tty2 and log-in with root
• Phase 1: execute the following commands. Assuming /dev/sda3 is the boot and root partition.

  fsck -f /dev/sda3
  mkdir /mnt2
  mount /dev/sda3 /mnt2
  mount --bind /dev /mnt2/dev
  mount --bind /proc /mnt2/proc
  mount --bind /sys /mnt2/sys
  mount --bind /run /mnt2/run
  chroot /mnt2 /bin/bash
  

• Phase 2: execute now the following commands.

  tdnf install grub2-pc
  tdnf update -y
  dracut -f --regenerate-all
  grub2-mkconfig -o /boot/grub/grub.cfg
  exit
  

• Phase 3: execute now the following commands.

  cd /
  umount  /mnt2/{dev,proc,sys,run}
  umount /mnt2
  reboot -f
  

With this, the recover should have been processed.