It's been so long since I last had to do this, that it looks like a kernel update somewhere along the way broke this for me. :-(

What happens now:

# chroot rs7

chroot: failed to run command ‘/bin/bash’: Exec format error

I could have sworn that this was all I needed to make this work last time:

# grep 4K_PAGES config-4.9.153-1.el7.centos.aarch64

CONFIG_ARM64_4K_PAGES=y

# CONFIG_ARM64_64K_PAGES is not set

Unfortunately, now trying to chroot into either hard-float or soft-float chroot results in the exec format error.

Looking at time stamps of various things, I had this working with 4.4.70, but have since switched to 4.9.x kernels. Any thoughts on what changed between 4.4 and 4.9 would be most appreciated.

What am I missing?