Hi, I have a 2015 iMac i5 with a fusion drive. Lately, I've been starting to suspect that the hard drive may be failing, because certain functions seem to be taking a long time to complete, but so far I haven't been able to tell for sure. Anyway, the 10.14.2 update process has been running for at least 20 minutes, and is still going (updating from 10.14.1). The progress bar indicates maybe 6 more minutes to go (but it keeps fluctuating). Does this seem like a normal time frame to perform the update? Thanks!