Dependencies for CentOS

[osowp]

Would it be possible to get some help figuring out the dependencies needed for CentOS. CentOS uses Yum not Apt-Get.

[tvoverbeek]

I am assuming you are using CentOS on Raspberry Pi.
The display uses SPI. So first thing to check is how SPI support (/dev/spidev0.0 and /dev/spidev0.1) is enabled. I suppose using a device overlay parameter (dtparam) in /boot/config.txt.
The driver (from https://github.com/repaper/gratis) uses libfuse (file system in user space).
I believe you can install fuse support with 'yum install fuse fuse-dev'.
Then check the build procedure in https://github.com/repaper/gratis for RPi. If you are lucky you can used the Makefiles unchanged.
Hope that gets you started.

[osowp]

Thank you TVoverbeek but I was not even up to that step when I wrote the above. I have since found the following conversions of Apt-get to yum install. I am still missing the Font package at this point.

"development tools"  installs several packages like: git, GCC, make,  
https://www.cyberciti.biz/faq/centos-rhel-7-redhat-linux-install-gcc-compiler-development-tools/

yum install bc
yum install python-pillow
yum intstall i2c-detect
yum install i2c-tools-python
yum install python-dateutil
yum install fuse-devel

Not confirmed if these are needed:
yum install fuse-libs
yum install fuse

After installing the above I think I should be able to at least run the papirus-clear. Which currently gives me this error: smbus.SMBus(busnum) no such file or directory.
Which is probably related to TVOver's answer above

Edit: forgot to mention: Whiptail is replaced with Newt on Centos. Not sure how it got installed but I already had it when I tried to install it manually.

[tvoverbeek]

I suppose 'yum install fuse-devel' will pull in fuse-libs and fuse as dependencies.
Regarding the 'smbus.SMBus(busnum) no such file or directory.' error.
The smbus python package is for i2c support.
As far as I know this is included in i2c-tools-python for Centos.
papirus needs i2c to communicate with the lm75b temperature sensor on the papirus board.
When you run python manually can you import the smbus package without errors?
I suppose you need to enable i2c bus access somehow.

[osowp]

Just got the i2c enabled with https://lists.centos.org/pipermail/arm-dev/2017-January/002628.html

We need to activate it through config.txt :

echo -e "dtparam=i2c1=on\ndtparam=i2c_arm=on" >> /boot/config.txt
echo -e "i2c-bcm2708\ni2c-dev" >> /etc/modules-load.d/i2c.conf
yum install -y i2c-tools
systemctl reboot

Once rebooted :

[root at rpi2 ~]# i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

[osowp]

Next error: "no such file or directory: '/dev/epd/version'

[tvoverbeek]

Then the epd driver from https://github.com/repaper/gratis is not installed or not working.
Did you manage to compile and build it?
The resulting epd-fuse is a filesystem in userspace which creates the /dev/epd directory.
It is started as a systemctl service at boot.
See the 'epd-fuse.service' file in https://github.com/repaper/gratis/blob/master/PlatformWithOS/driver-common/epd-fuse.service
It is installed with the Make install
Do not forget to enable spi in /boot/config.txt: dtparam=spi=on

[osowp]

It looks like the gratis built correctly, (just did it again to be sure)

but the "sudo systemctl start epd-fuse" failed

journal -xe reports a "timeout waiting for device dev-spidev0.0.device"

Edit: found the problem, had a typo in the config.txt

[tvoverbeek]

Does this mean you got papirus-clear working?

[osowp]

Partly, Papirus-clear is "trying" to clear the screen. but its leaving the out of sync lines. which I thought i had seen as a known issue before but can't find it now

This is on a Pi3B using the 2.7" screen.

[tvoverbeek]

That probably means you have not set the display type/size correctly in /etc/default/epd-fuse.
Run the papirus-config script. For me it is in /usr/local/bin

[osowp]

I had modified -clear to hardcode the EPD size to 2.7

But now that I run -config I get an invalid syntax error on line 4
If [[ $EUID -ne 0 ]]; then
<pointing to the $>

[tvoverbeek]

it assumes it is run as a bash script. Is the environment variable EUID (effective user id) set?
Check in a bash shell echo $EUID.
It is a check that the scritp is running as root.

[osowp]

sorry my brain must be fried. stupid mistake. I was trying to run it as a python program.

papirus-clear works correctly now
papirus-draw also works

I assume once I get fonts installed papirus-text and -clock and others will also

[tvoverbeek]

Regarding the fonts. FreeMono.ttf etc are in
https://centos.pkgs.org/7/slce-x86_64/freefont-20120503-1.el7.noarch.rpm.html

[osowp]

for those that follow me on centos there is one change and one extra step to the centos..freefont

1. for the slce.repo: replace "$basearch" with "x84_64"
   Create the repository config file /etc/yum.repos.d/slce.repo:
   [slce]
   name=Scientific Linux Cyrillic Edition
   baseurl=http://downloads.naulinux.ru/pub/SLCE/7x/**$basearch**/CyrEd/RPMS/
   enabled=0
   gpgcheck=1
   gpgkey=http://downloads.naulinux.ru/pub/SLCE/RPM-GPG-KEY-linux-ink
   Install freefont rpm package:

yum --enablerepo=slce install freefont

2)move the installed fonts to where they are supposed to be:
cd /usr/share/fonts
mkdir truetype
mv freefont truetype

At this point the following demos work
Papirus-clear, papirus-draw, papirus-clock, papirus-temp, papirus-gol, papirus-system

Known to still have issues
papirus-radar, papirus-composite-write, papirus-test

I haven't checked the others but I have it working enough for me.