vm os ios

[EfstratiosPolychronidis38325]

Hello team,

for installation of ie cucm in VM we need an ova and a bootable iso

comparing a VM with a physical machine, needs to have the same structure

VM hardware settings , ova builds the machine with our hw preferences

iso disk image , installs the cucm

VM OS , what is responsible to install the OS ?

[Roger Kallberg]

The OS is in the ISO.

[EfstratiosPolychronidis38325]

thank you,

it used to be red hat for cucm

but now is centos

so if first installation was with red hat 

and the upgrade is on CUCM version with centos

then both the OS and the CUCM will be upgraded

and this is the so called direct refresh

it is also happening when moving from one major version to another like 14 to 15

all the above are correct ?

[Roger Kallberg · Accepted solution]

More or less. Btw v15 uses Alma Linux.