User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
Firefox/60.0
Build Identifier: 

Right at the beginning of the upgrade, after inspecting the disk I get the
window titled "Partition or System to upgrade" and it shows the root partition.
After clicking the "Next" button I get the message "mounting partition". After
a while I get the following error message:
Error
Internal Error. Please report a bug report with logs. Run save-y2logs to get
complete logs.
Details: Operation not permittet @ rb_sysopen - /mount/etc/resolv.conf
Caller: /mounts/mp_0001/user/lib64/ruby/2.5.0/fileutils.rb: 1292: in
`initialize'
Start the Ruby debugger now to debug the issue? (Experts only)

Reproducible: Always

Steps to Reproduce:
1. Insert the install DVD 
2. Reboot
3. Follow instructions on screen for upgrade
Actual Results:  
I get the error message as described above

Expected Results:  
Root partition is mounted and install/upgrade proceeds