Comment 1 for bug 1689944

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Ryan Harper (raharper) wrote :

Also, ubuntu-core image has some required kernel flags in /proc/cmdline

$ cat /proc/cmdline
BOOT_IMAGE=(loop)/kernel.img root=LABEL=writable snap_core=core_x1.snap snap_kernel=pc-kernel_x1.snap ro net.ifnames=0 init=/lib/systemd/systemd console=tty1 console=ttyS0 panic=-1

Specifically, 'snap_core=' and 'snap_kernel='