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Boot Failed with Error: Warning: /dev/<VG>/root does not exist

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edited Jun 28, 2022 10:59AM in Linux

Applies to:

Oracle Cloud Infrastructure - Version N/A and later

Linux OS - Version Oracle Linux 7.0 and later

Oracle Compute Cloud Service - Version N/A and later

Information in this document applies to any platform.


Symptoms

The instance fails to boot.

The console, three minutes after the boot shows:

[ OK ] Started iSCSI UserSpace I/O driver.
Starting Open-iSCSI...
[ OK ] Started Open-iSCSI.
[ 127.394485] dracut-initqueue[316]: Warning: dracut-initqueue timeout - starting timeout scripts
[ 127.997696] dracut-initqueue[316]: Warning: dracut-initqueue timeout - starting timeout scripts
[ 189.641693] dracut-initqueue[316]: Warning: dracut-initqueue timeout - starting timeout scripts
[ 189.641871] dracut-initqueue[316]: Warning: Could not boot.
[ 189.744797] dracut-initqueue[316]: Warning: /dev/mapper/ol-root does not exist
[ 189.746759] dracut-initqueue[316]: Warning: /dev/ol_test/root does not exist
Starting Dracut Emergency Shell...
Warning: /dev/mapper/ol-root does not exist
Warning: /dev/ol_test/root does not exist 
Generating "/run/initramfs/rdsosreport.txt"
Entering emergency mode. Exit the shell to continue.
Type "journalctl" to view system logs.
You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick or /boot
after mounting them and attach it to a bug report.
dracut:/#

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