Shortly after installing Mint, I configured the firewall to deny incoming (default recommended setting).
The wife was using Mint and it crashed (she had been doing online shopping/signed up for new email, etc. prior to). It wouldn't reboot normally, it instructed to run fsck manually; initramfs fsck /dev/sda1 and pressing Y to repair several reported errors (I don't remember what they were, perhaps 8 or so errors) afterwards it did reboot properly. One error I do remember reported before manual fsck was random: 7 urandom warning(s) missed due to ratelimiting which I found out is due to lack of entropy. I wonder since I replaced the spinning HD with an SSD (before installing Linux) that this lowered the amount of random data available to refill the pool of entropy? I found that Havegad can be installed to generate random data to increase entropy. Would a lack of entropy cause the above crash?
Later I changed the root password to one different than the user password.
Would performing an update to 19.3 replace any missing/damaged files (from the crash, I don't remember the errors I pressed Y to fix were)?
I no longer have the download ISO (moved to flashdrive from win7, then deleted of the flashdrive), is it too late to verify the authenticity of the ISO download?
I've noticed a lag with the pointer when using the trackpad, I don't remember this before the crash. This has me concerned about security, I intend on installing clamAV next.
Anything else I should check?
Thank you for your help.
