What I did was to download the 400M image at the "Intel IoT developer zone" here:
On this page, I selected the link labelled "latest Yocto Pokey image" and downloaded it. This provided me with iot-devkit-prof-dev-image-galileo-20160606.zip. This unzips to a 1.8G file: iot-devkit-prof-dev-image-galileo-20160606.direct.I have a brand new "SanDisk Ultra microSDHD UHS-1 card" in an 8G size. I put this into my trust USB card reader and plug it into my linux desktop. It automounts. The mount command tells me that /dev/sdc1 is mounted with type vfat.
Warning!! Be absolutely sure to have the correct device name in the following step. If you do something stupid like doing the dd to device "sda" you will overwrite your system disk on your desktop machine!
I am using a Fedora 24 linux desktop to do this. When I plug in my card reader, it detects it and automounts it. But we want to unmount it and then use dd, as follows:
su umount /dev/sdc1 dd if=iot-devkit-prof-dev-image-galileo-20160606.direct of=/dev/sdc bs=16M 108+1 records in 108+1 records out 1819280384 bytes (1.8 GB, 1.7 GiB) copied, 234.939 s, 7.7 MB/s syncThat is it. Easy as pie. Just for the record, looking at this card with fdisk shows:
Command (m for help): p Disk /dev/sdc: 7.4 GiB, 7948206080 bytes, 15523840 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x55f2787e Device Boot Start End Sectors Size Id Type /dev/sdc1 * 2048 106495 104448 51M 83 Linux /dev/sdc2 106496 3553279 3446784 1.7G 83 Linux
I have vi and cc (vim and gcc) so I can immediately write a hello world program.
And to my pleasant surprise, this has sshd ready to go and performs dhcp as soon as a network cable is attached. Very nice. The following is part of the output from "ps -l"
S 0 105 1 9932 1296 0:0 18:02 00:00:00 /lib/systemd/systemd-udevd S 996 126 1 12212 1196 0:0 18:02 00:00:08 /lib/systemd/systemd-timesyncd S 0 154 1 5648 2072 0:0 18:02 00:00:00 /usr/sbin/ofonod -n S 0 156 1 5848 652 0:0 18:02 00:00:00 /usr/sbin/tcf-agent -d -L- -l0 S 998 160 1 3436 1608 0:0 18:02 00:00:00 avahi-daemon: running [galileo.local] S 0 162 1 3352 1264 0:0 18:02 00:00:00 /bin/sh /opt/cln/galileo/launcher.sh S 998 163 160 3328 468 0:0 18:02 00:00:00 avahi-daemon: chroot helper S 0 168 1 2768 1184 0:0 18:02 00:00:00 /lib/systemd/systemd-logind S 999 169 1 3088 1400 0:0 18:02 00:00:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation S 0 170 162 1820 380 0:0 18:02 00:00:00 /opt/cln/galileo/galileo_sketch_reset -i 63 -o 47 S 0 171 162 2012 516 0:0 18:02 00:00:00 /opt/cln/galileo/clloader --escape --binary --zmodem --disable-timeouts S 0 183 1 7288 2516 0:0 18:02 00:00:07 /usr/sbin/connmand -n S 0 190 1 2392 836 0:0 18:02 00:00:01 /usr/sbin/lighttpd -D -f /etc/lighttpd.conf S 65534 191 1 2720 1128 0:0 18:02 00:00:00 /usr/sbin/mdnsd S 995 194 1 2268 748 0:0 18:02 00:00:00 avahi-autoipd: [enp0s20f6] sleeping S 0 195 194 2012 348 0:0 18:02 00:00:00 avahi-autoipd: [enp0s20f6] callout dispatcher S 0 200 1 6988 1492 0:0 18:02 00:00:00 /usr/sbin/wpa_supplicant -u S 0 203 1 5116 1744 0:0 18:02 00:00:00 /usr/lib/bluez5/bluetooth/bluetoothd -E S 0 204 1 3352 1264 0:0 18:02 00:00:00 {xdk-daemon} /bin/sh /opt/xdk-daemon/xdk-daemon S 0 213 204 77080 11456 0:0 18:02 00:00:05 /usr/bin/node /opt/xdk-daemon/main.js S 0 219 1 3416 1504 ttyS1 18:02 00:00:00 -sh S 0 220 1 2244 736 tty1 18:02 00:00:00 /sbin/agetty --noclear tty1 linux S 0 236 213 110m 16148 0:0 18:02 00:00:08 /usr/bin/node /opt/xdk-daemon/current/appDaemon.js S 0 257 1 20060 1192 0:0 18:03 00:03:12 /usr/bin/redis-server /etc/redis/redis.conf S 0 285 2 0 0 0:0 19:14 00:00:00 [kworker/0:0] S 0 288 1 5520 2340 0:0 19:15 00:00:01 sshd: root@pts/0And for the record, here are the mounted filesystems
root@galileo:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 1668912 1360604 222164 86% / /dev/mmcblk0p1 50412 2287 48126 5% /media/card mount /dev/mmcblk0p2 on / type ext3 (rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=writeback) /dev/mmcblk0p1 on /media/card type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)Apparently /dev/root was equivalent to /dev/mmcblk0p2 as some stage of the boot process.
But Intel was thinking of the Galileo as a "super arduino" or some such. We should be thankful that they included an SD slot I suppose. Maybe they were afraid of suggesting to people that the Galileo is capable of being a linux machine, expecting people to use the Arduino sandbox and neither know nor care that it was running linux under the hood. I have seen companies "cripple" a product to ensure that it does not compete with other products in their overall "strategy". Well, who knows.
Tom's Computer Info / [email protected]