If you prioritize I/O performance over snapshot features, convert the image to raw:
Some newer virtual images can be "heavy" or prone to kernel panics during boot. The 20.2R1.10 release is widely regarded in the community as one of the most stable builds for nested virtualization. vqfx202r110reqemuqcow2 top
: vqfx-20.2R1.10-re-qemu.qcow2 (~675 MB). If you prioritize I/O performance over snapshot features,
: vqfx-20.2R1-2019010209-pfe-qemu.qcow . 2. Resource Allocation For a stable lab experience, assign the following: RE VM : 1024 MB RAM and 1-2 vCPUs. PFE VM : 2048 MB to 4096 MB RAM and 2 vCPUs. 3. The "Secret Sauce" Connection : vqfx-20
Many users have noted that the 20.2R1.10 evaluation file actually boots as Junos 19.4R1.10 once installed.
If you see %st suddenly appear, it means your host CPU is saturated – scale down or dedicate cores.
I don’t recognize "vqfx202r110reqemuqcow2 top" — it looks like a random or opaque string. I can proceed two ways; pick one: