[arm-allstar] tmpfs percentage

Charles Powell 5h3dx.zinga at gmail.com
Wed Oct 17 12:50:03 EDT 2018 

Just a note about the command ‘df’.  If you use 'df -h' it gives a “human readable” result.

73,

Charles - NK8O

> On Oct 17, 2018, at 11:32 AM, Luc Drolet VE2LUQ via ARM-allstar <arm-allstar at hamvoip.org> wrote:
> 
> Hello Doug,
> 
> WOW, a big thank you
> yes everything works fine now
> I can see the USB key with its usage percentage
> 
> I missed the 
> pgrep devmon function&>/dev/null||/usr/bin/devmon&>/dev/null&
> 
> 
> [root at NODE1420 ~]# pgrep devmon function&>/dev/null||/usr/bin/devmon&>/dev/null&
> [1] 15804
> [root at NODE1420 ~]# df
> Filesystem     1K-blocks    Used Available Use% Mounted on
> /dev/root        3762048 1610088   1941140  46% /
> devtmpfs          474584       0    474584   0% /dev
> tmpfs             479192       0    479192   0% /dev/shm
> tmpfs             479192   12368    466824   3% /run
> tmpfs             479192       0    479192   0% /sys/fs/cgroup
> tmpfs             479192      44    479148   1% /tmp
> tmpfs              51200      28     51172   1% /var/log
> /dev/mmcblk0p1    102182   19614     82568  20% /boot
> tmpfs              95840       0     95840   0% /run/user/0
> /dev/sda1       15649664  331584  15318080   3% /media/NODE1420
> [root at NODE1420 ~]# 
> 
> 
> Now I can see my USB key
> 
> A big thank you for your help
> 
> Thank you
> 
> 73’s
> Luc
> VE2LUQ
> 
> 
> 
>> Le 17 oct. 2018 à 01:16, Doug Crompton via ARM-allstar <arm-allstar at hamvoip.org> a écrit :
>> 
>> Luc,
>> 
>> I have no idea what is going on. Your df does not show it. Is it actually
>> mounted? If so how are you mounting it? I do not specifically put anything
>> in /etc/fstab  instead I use devmon to auto mount at boot which works
>> fine.  A line like this would check if devmon is running and if not start
>> it in the background.
>> 
>> # check if devmon is running, if not running,  start it
>> pgrep devmon &> /dev/null || /usr/bin/devmon &> /dev/null &
>> 
>> You could add this in  /etc/rc.local at the top.  As long as devmon is
>> running any removable media will be auto mounted in /media
>> 
>> BUT A better way is to load it as a systemd service. First see if it is
>> already loaded -
>> 
>> # systemctl status devmon at service
>> * devmon at service.service - devmon Service
>>  Loaded: loaded (/usr/lib/systemd/system/devmon at .service; enabled; vendor
>> preset: disabled)
>> 
>> If it is not loaded do -
>> 
>> systemctl enable devmon at service
>> systemctl start devmon at service
>> 
>> Then when you do  systemctl status devon at service  it should show loaded.
>> 
>> Don't add anything in fstab. The system should detect and mount any
>> removable media under /media at boot or whenever you insert it.
>> 
>> To make it come up with a specific name you need to use something like
>> Gparted on a Linux desktop on the stick to give it a name label.  I
>> labelled mine MS1 for mass storage 1.  So it gets mounted as  /media/MS1
>> 
>> 
>> *73 Doug*
>> 
>> *WA3DSP*
>> 
>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>> 
>> 
>> 
>> On Tue, Oct 16, 2018 at 6:02 PM Luc Drolet VE2LUQ <ldrolet at cgocable.ca>
>> wrote:
>> 
>>> Hello Doug,
>>> 
>>> Here is what I have for 2 repeaters
>>> 
>>> 
>>> [root at NODE1420 ~]# df
>>> Filesystem     1K-blocks    Used Available Use% Mounted on
>>> /dev/root        3762048 1602660   1948568  46% /
>>> devtmpfs          474584       0    474584   0% /dev
>>> tmpfs             479192       0    479192   0% /dev/shm
>>> tmpfs             479192   36392    442800   8% /run
>>> tmpfs             479192       0    479192   0% /sys/fs/cgroup
>>> tmpfs             479192      44    479148   1% /tmp
>>> tmpfs              51200     548     50652   2% /var/log
>>> /dev/mmcblk0p1    102182   19614     82568  20% /boot
>>> tmpfs              95840       0     95840   0% /run/user/0
>>> [root at NODE1420 ~]#
>>> 
>>> 
>>> and in my RPT.conf file I put it well
>>> archivedir = /media/NODE1420
>>> 
>>> and my USB key is well named NODE1420, and formatted in exFAT
>>> 
>>> are there any special functions to do to have the "df » function
>>> /dev/sda1       59374732 1616632  54718920   3% /media/NODE1420
>>> 
>>> Thank you for your answers
>>> 
>>> 73’s
>>> 
>>> Luc
>>> VE2LUQ
>>> 
>>> 
>>>> Le 15 oct. 2018 à 22:17, Doug Crompton via ARM-allstar <
>>> arm-allstar at hamvoip.org> a écrit :
>>>> 
>>>> Luc,
>>>> 
>>>> df will always show what is mounted. If you are not seeing it it probably
>>>> is not mounted. Here is one of my servers df's with a USB stick -
>>>> 
>>>> Filesystem     1K-blocks    Used Available Use% Mounted on
>>>> /dev/root        3762048 1708732   1842496  49% /
>>>> devtmpfs          474584       0    474584   0% /dev
>>>> tmpfs             479192       0    479192   0% /dev/shm
>>>> tmpfs             479192   48268    430924  11% /run
>>>> tmpfs             479192       0    479192   0% /sys/fs/cgroup
>>>> tmpfs             479192    1308    477884   1% /tmp
>>>> tmpfs              51200    3472     47728   7% /var/log
>>>> /dev/mmcblk0p1    102182   19612     82570  20% /boot
>>>> /dev/sda1       59374732 1616632  54718920   3% /media/MS1
>>>> tmpfs              95840       0     95840   0% /run/user/0
>>>> 
>>>> The USB stick is mounted to /dev/sda1 as /media/ms1
>>>> A USB stick is not a tmpfs. That would be ramdisk on the CPU. Maybe you
>>> are
>>>> confusing the two?
>>>> 
>>>> 
>>>> *73 Doug*
>>>> 
>>>> *WA3DSP*
>>>> 
>>>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>>>> 
>>>> 
>>>> 
>>>> On Mon, Oct 15, 2018 at 10:08 PM "Luc Drolet VE2LUQ via ARM-allstar" <
>>>> arm-allstar at hamvoip.org> wrote:
>>>> 
>>>>> Hello everyone,
>>>>> 
>>>>> I have a little problem
>>>>> with 2 repeaters I can not see my USB key in "tmpfs" before I could see
>>>>> the percentage of use of these USB key
>>>>> and the other repeaters that I use, I can see my USB keys with the
>>>>> percentage of use of this USB key
>>>>> 
>>>>> my usb keys are formatted in exFAT
>>>>> 
>>>>> is there a way to see this information
>>>>> I type "df" in "start bash shell interface"
>>>>> 
>>>>> Thank you
>>>>> 
>>>>> 73’
>>>>> Luc
>>>>> VE2LUQ
>>>>> _______________________________________________
>>>>> 
>>>>> ARM-allstar mailing list
>>>>> ARM-allstar at hamvoip.org
>>>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>>> 
>>>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>>>> _______________________________________________
>>>> 
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>>>> 
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>>> 
>>> 
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>> 
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> 
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