SX2@makoto 21:15:26/230809(~)% \
  zcat Downloads/NetBSD-10.99.7-amd64-bios-install.img.gz | \
  time sudo dd of=/dev/rsd0d bs=64m
Password: 
0+40000 records in
0+40000 records out
2621440000 bytes transferred in 81.715 secs (32080279 bytes/sec)
0.31s 2.63s 1:25.15 3% 5+8k 0+2io 143pf+0w
SX2@makoto 21:17:26/230809(~)% 

===> Summary of results:
         build.sh command:    ./build.sh -j 8 -T /export/T -O /tmp/O 
                               kernel=GENERIC-no-SYNAPTICS-nvmm-pmf-debug
         build.sh started:    Wed Aug  9 22:22:20 JST 2023
         NetBSD version:      10.99.7
         MACHINE:             amd64
         MACHINE_ARCH:        x86_64
         Build platform:      NetBSD 10.99.5 amd64
         HOST_SH:             /bin/sh
         share/mk MAKECONF:   /etc/mk.conf
         MAKECONF file:       /etc/mk.conf
         TOOLDIR path:        /export/T
         DESTDIR path:        /tmp/O/destdir.amd64
         RELEASEDIR path:     /tmp/O/releasedir
         Updated makewrapper: /export/T/bin/nbmake-amd64
         Building kernel without building new tools
         Building kernel:     GENERIC-no-SYNAPTICS-nvmm-pmf-debug
         Build directory:     /tmp/O/sys/arch/amd64/compile/
                              GENERIC-no-SYNAPTICS-nvmm-pmf-debug
         Kernels built from GENERIC-no-SYNAPTICS-nvmm-pmf-debug:
          /tmp/O/sys/arch/amd64/compile/
                              GENERIC-no-SYNAPTICS-nvmm-pmf-debug/netbsd
         build.sh ended:      Wed Aug  9 22:26:00 JST 2023
===> .
h97@makoto 06:51:33/230810(..git-work/netbsd-src)% pwd
/export/git-work/netbsd-src
h97@makoto 06:51:52/230810(..git-work/netbsd-src)%