How do I change where the logger files are being saved? Right now they’re being saved at \home\linaro\log and I would like them to be saved on my sd card \mnt\sdcard\
Hi
This path is hardcoded in px4_defines.h. You can either change it in there, or better, change the log directory into a symbolic link to point to the sd card.
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Hey, I changed the log file directory to "/mnt/sdcard" instead of “/root” in the sdlog2.c file.
But PX4 doesn’t detect the microSD card to log into it. This is what I get when I start PX4:
root@linaro-developer:/home/linaro# ./px4 mainapp.config
sh: 1: cannot create /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor: Directory nonexistent
commands file: mainapp.config
______ __ __ ___
| ___ \ \ \ / / / |
| |_/ / \ V / / /| |
| __/ / \ / /_| |
| | / /^\ \ \___ |
\_| \/ \/ |_/
px4 starting.
WARN [sdlog2] [blackbox] no microSD card, disabling logging
Command 'sdlog2' failed, returned 1
INFO [dataman] Unkown restart, data manager file '/home/linaro/dataman' size is 47640 bytes
INFO [mavlink] mode: Normal, data rate: 1000000 B/s on udp port 14556 remote port 14550
Sleeping for 1 s; (1000000 us).
pxh> INFO [mavlink] using network interface wlan0, IP: 192.168.0.114
INFO [mavlink] with broadcast IP: 192.168.0.255
pxh>
But the microSD is listed when I run the " df " command in the terminal:
root@linaro-developer:/# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mmcblk0p13 8238556 1426340 6812216 18% /
udev 781328 4 781324 1% /dev
tmpfs 192552 492 192060 1% /run
none 4 0 4 0% /sys/fs/cgroup
none 5120 0 5120 0% /run/lock
none 962744 0 962744 0% /run/shm
none 102400 0 102400 0% /run/user
/dev/mmcblk0p14 32212 4116 28096 13% /mnt/persist
/dev/mmcblk0p15 32212 14800 17412 46% /lib/firmware
/dev/mmcblk1p1 30295900 577248 28200060 3% /mnt/sdcard
/dev/mmcblk0p12 1030828 45388 985440 5% /mnt/system
root@linaro-developer:/#
Could anyone please point me in the right direction?
Hey, I got it. A very silly mistake on my part. Basically, this is what you need to do.
go to "src/modules/sdlog2" and edit the sdlog2.c file. go to line 163 and do this:
#ifndef __PX4_POSIX_EAGLE
#define MOUNTPOINT PX4_ROOTFSDIR"/fs/microsd"
#else
#define MOUNTPOINT "/mnt/sdcard"
that should do the trick. This is what I get when I start PX4 now :
root@linaro-developer:/home/linaro# ./px4 mainapp.config
sh: 1: cannot create /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor: Directory nonexistent
commands file: mainapp.config
______ __ __ ___
| ___ \ \ \ / / / |
| |_/ / \ V / / /| |
| __/ / \ / /_| |
| | / /^\ \ \___ |
\_| \/ \/ |_/
px4 starting.
INFO [sdlog2] [blackbox] /mnt/sdcard/log/2016-12-10
INFO [sdlog2] [blackbox] recording: 18_19_54.px4log
INFO [dataman] Unkown restart, data manager file '/home/linaro/dataman' size is 47640 bytes
INFO [mavlink] mode: Normal, data rate: 1000000 B/s on udp port 14556 remote port 14550
Sleeping for 1 s; (1000000 us).
pxh> INFO [mavlink] using network interface wlan0, IP: 192.168.0.114
INFO [mavlink] with broadcast IP: 192.168.0.255
pxh>
Hope that resolves the issue. 
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