update-initramfs pid 1373
sudo lsof -p 1373 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME update-in 1373 root cwd DIR 9,2 4096 16515073 /root update-in 1373 root rtd DIR 9,2 4096 2 / update-in 1373 root txt REG 9,2 125400 23461891 /bin/dash update-in 1373 root mem REG 9,2 1738176 26869908 /lib/x86_64-linux-gnu/libc-2.19.so update-in 1373 root mem REG 9,2 140928 26869905 /lib/x86_64-linux-gnu/ld-2.19.so update-in 1373 root 0u CHR 136,4 0t0 7 /dev/pts/4 update-in 1373 root 1u CHR 136,4 0t0 7 /dev/pts/4 update-in 1373 root 2u CHR 136,4 0t0 7 /dev/pts/4 update-in 1373 root 10r REG 9,2 8974 19546736 /usr/sbin/update-initramfs