recipes-google/gbmc-sysinit/server3/emmc-wait.service

[Unit]
Description=Wait for eMMC to become available
DefaultDependencies=no
StartLimitIntervalSec=60s
StartLimitBurst=3

[Service]
Type=oneshot
TimeoutStartSec=330s
ExecStart=/usr/bin/wait_emmc_available.sh

[Install]
WantedBy=multi-user.target