Dracut-initqueue swap does not exist during system boot

APPLIES TO

Operating System - Oracle Linux Server 7.4

SYMPTOMS

[198.935138] dracut-initqueue[310]: Warning: Could not boot.
[198.971675] dracut-initqueue[310]: Warning: /dev/ol/swap does not exist
Starting Dracut Emergency Shell...
Warning: /dev/ol/swap does not exist

CAUSE

The logical volume /dev/ol/swap was lost or not exist.

SOLUTION

• Method 1

1. Type blkid to list device information.

   

2. Mount sysroot.

   

3. Mount boot.

   

4. Changing the default boot entry.

   

5. Chanaging the the grub.cfg file.

   

   

6. Reboot system.

   dracut:/# init 6

---

• Method 2 (Recommended)

1. Reboot system.

   dracut:/# init 6

2. Press e to modify grub menu entries.

   

3. Remove rd.lvm.lv=ol/swap parameter in the linux16 line

   

   

4. Press Crtl-x to boot system.

5. Make a backup for grub file.

   cp -a /etc/default/grub{,.bak}
   cp -a /boot/grub2/grub.cfg{,.bak}

6. Changing the default boot entry, and rebuilding the grub.cfg file.

   

7. Reboot system.

   systemctl reboot