agemio Posted October 7, 2015 Posted October 7, 2015 hi, I am th owner of a lamobo r1 card. Last days i'have tried more than 10 debian/bananian/ubuntu/raspian/openwrt image. Most of them work fine. Community image are often better than sinovoip one ... Unfortunatly, my sata HDD never work. I'm using a seagate 1TB SSHD. I currently using the armbian ubuntu image. At boot, the hdd spin up and stop, and ubuntu don't boot. If I remove the HDD everthing work fine. Anybody have a working hdd using the micro usb power port ? I use an ipad charger and a good one meter usb cable. Any help is greatly appreciated. If I should provide more details, please let me know Thanks agemio
Tido Posted October 8, 2015 Posted October 8, 2015 Hi, Just out of curiosity, why do you open a new thread, if there is one pinned on top? Here is the link
tkaiser Posted October 8, 2015 Posted October 8, 2015 I use an ipad charger and a good one meter usb cable. Does this mean you simply trust in charger and cable and believe they're able to deliver enough current/voltage? Or did you check it? On the R1 using an image with kernel 3.4.x it's pretty easy to get a clue if you run in undervoltage/undercurrent issues or not. Simply query the PSU using sysfs (unfortunately this still does not work with mainline kernel due to missing drivers) To get a clue which sysfs entries to query and what the problem is (undervoltage might happen only in situations when the system consumes more power) read this thread here: http://www.lemaker.org/forum.php?mod=viewthread&tid=8312&fromuid=33332
petrmaje Posted October 10, 2015 Posted October 10, 2015 Hi, look at label on the disk, there should be power consumption. I have tested R1 with ordinary mechanical disks with consumption <500mA. In this case is USB power strong enough. If your disk have consumption ~1A, USB is not enough.
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