Failing to install Untangle after selecting install mode

Hello,

Please forgive me if this is a simple resolution, however i have not been able to resolve on my end and it has been extremely stressful.

Scenario: We had Untangle installed on a HP DC7800 with a Pentium E2200 Processor on a 64-bit version of Untangle and fairly new HDD (1 year old). We had a power outage which killed the HDD wouldnt boot. Purchased a new HDD and now when i try to install untanlge either 32 bit or 64 bit fails after selecting the install mode. Occurs whether i try to boot from CD or from USB. See screen shots.

I am not currently infront of the PC, and i do not have the entire error message
one of the error messages i receive is
Invalid compressed format (err=1)
kernel panic - not syncing: VFS: unable to mount root fs on unknown-b



2nd error message:


There are 2 error messages 1 occurs when i try to install 32 bit and the other when i try to install 64 bit

I am wondering if anyone can help me figure out why untangle is not installing, on a machine that it was once running on just fine? How can i interpret the error messages?

Any help is greatly appreciated thank you.
Julian