MicroSD Retropie On

Efriim

@mitu
I removed ram and sdcard overclocks, reset then updated reicast from source.
The reicast build was corrupted, this very well may have caused the memorycard error by itself.
The reicast binary install still work okay.

The original memory card i/o address read error did occur after trying to run the reicast binary a few times directly in command line. I did not get the specifics of the error, but it was every ~5 seconds or so a new one at the same address, it was at a directory in var, sgml or dkms. Don't need it explained I think I understand, I'm pretty certain it was the corrupted binary.

Efriim

Fstab mount and samba share

And here is using fstab to mount a usb drive and then adding a samba share.

memorize the uuid of the usb sda1 or sda2, or write it down, or open another terminal.
ls -l /dev/disk/by-uuid/ or sudo blkid
1A92-F7C1 -> ../../sda1

Edit fstab and add a line after the other mounts for the usb, replacing UUID, with the one for your device and, and mount path for your own setup. The device could also use fstype auto, ntfs-3g, ext3, and different options defaults if that is the format you use.
sudo nano /etc/fstab

device/uuid        mount                          fstype options                          
UUID=1A92-F7C1   /home/pi/RetroPie/memorycard   vfat   defaults,noatime,users,rw,uid=pi,gid=pi   0   0

Note it is also possible to add a NFS network or share to the fstab to be mounted on availability.

Create the dirctory for the mount
mkdir /home/pi/RetroPie/memorycard

And finally add the samba share, at the bottom of this file using ctrl+K ctrl+U to copy one of the other entries is helpful
sudo nano /etc/samba/smb.conf

[memorycard]
comment = memorycard
path = "/home/pi/RetroPie/memorycard"
writeable = yes
guest ok = yes
create mask = 0644
directory mask = 0755
force user = pi

The usbromservice could be uninstalled if from retropiepackages if it is unused.

here are links describing more of the same.
https://help.ubuntu.com/community/Fstab
https://gist.github.com/etes/aa76a6e9c80579872e5f
https://www.raspberrypi-spy.co.uk/2014/05/how-to-mount-a-usb-flash-disk-on-the-raspberry-pi/

mitu

@Efriim said in MicroSD Retropie On:

The reicast build was corrupted, this very well may have caused the memorycard error by itself.

I doubt that, it's most likely the other way around - due to SDcard/filesystem errors, the binary was corrupted.

Efriim

@mitu
Doubly doubted, on another sdcard the reicast source is not built correctly and the binaries are corrupted.

mitu

@Efriim Can you post the compilation log, from $HOME/RetroPie-Setup/logs, on pastebin.com ?

Efriim

@mitu
Good idea. I didn't know where to look for the log. I had packed up my things but it is a good thing I decided to unpack because I forgot my powersupply.

500kb limit
https://pastebin.com/Br5fJtec part1 lines 1-500
https://pastebin.com/gJSZWPaJ part2 501-xx

line 405: part1

/home/pi/RetroPie-Setup/tmp/build/reicast/shell/linux/../../core/deps/libelf/elf32.cpp:137:10: warning: ISO C++ forbids converting a string constant to ‘char*’ [-Wwrite-strings]
   return "<corrupted>";

Actual errors when running reicast.

./reicast.sh
./reicast.sh: line 88:  3320 Trace/breakpoint trap   "$rootdir/emulators/reicast/bin/reicast" "${params[@]}" > /dev/null

./reicast
Config dir is: /home/pi/.reicast/
Data dir is:   /home/pi/.reicast/
Personality: 00C00000
Updated personality: 00800000
found libbcm_host
rpi2: bcm_init
ARM VFP-Run Fast (NFP) enabled !
Linux paging: 4096 00001000 00000FFF
MAP 00800000 w/ 25165824
MAP 20000000 w/ 25165824
MAP 04000000 w/ 16777216
MAP 06000000 w/ 16777216
MAP 0C000000 w/ 0
vmem reserve: base: 539F0000, aram: 739f0000, vram: 579F0000, ram: 5F9F0000
Mem alloc successful!

EGL config: 0x1, 0x1, 0x1 640x480
SIGSEGV @ 0 -> (nil) was not in vram, dynacode:0
Fatal error : segfault
 in fault_handler -> /home/pi/RetroPie-Setup/tmp/build/reicast/shell/linux/../../core/linux/common.cpp : 107

Trace/breakpoint trap

line 601, part2: l100
is the only instance of ../core/linux/common.cpp

mitu

That error doesn't mean that the binary is 'corrupted', it's just that it's crashing due to other circumstances.

Efriim

@mitu
But does not the log file line 405 mean that elf32.cc is corrupt, and thus the executable binary is too?

mitu

@Efriim said in MicroSD Retropie On:

405 mean that elf32.cc is corrupt

No, that's a compilation warning - not an error - for the following line from the source code.

Efriim

Reicast source is still not working in retropie packages.

And here is safe shutdown script for retroflag cases and more, https://github.com/crcerror/retroflag-picase
Install safeshutdown:
wget -O - "https://raw.githubusercontent.com/crcerror/retroflag-picase/master/install.sh" | sudo bash

And some extra scriptmodule packages
Exult - Ultima VII
wget -O ~/RetroPie-Setup/scriptmodules/ports/exult.sh - "https://raw.githubusercontent.com/amigagamer/ExultRetropie/master/exult.sh"

Extra scripts
https://github.com/zerojay/RetroPie-Extra

mitu

@Efriim said in MicroSD Retropie On:

Reicast source is still not working in retropie packages.

I'll give it a shot later to see how it works - does the binary work ? Is there any specific game you tried ?

Efriim

@mitu
The binary works fine. I hear that the reicast source was updated is why I wanted to build the latest.

mitu

OK, so when installing from source, I get the same crash, so something must have been changed upstream. I'll try to get a bisect working.

mitu

Seems like an upstream issue, which is solved, but not yet merged - https://github.com/RetroPie/RetroPie-Setup/issues/2700 (leading to the a bug report on the Reicast repo - https://github.com/reicast/reicast-emulator/issues/1537).

Bisecting the issue points to an older commit (a808a8f3).

Efriim

@mitu
Yeah it looks like I had problems installing the source a few months ago too.

I had a couple questions. In my fstab

UUID=1A92-F7C1   /home/pi/RetroPie/memorycard   vfat   defaults,noatime,users,rw,uid=pi,gid=pi   0   0

I thought this would mount on availability, do you know what options are added, for automount and so that it wont hang a startup process during boot for 180 seconds, when the usb is unplugged?

My other question, I don't know probably couldn't answer, on my last retropie installation, I had a startup time of around 15 seconds. I think i have done everything that I did on my last installation but I can still only get 18 seconds. Any ideas?

mitu

I had a couple questions. In my fstab
UUID=1A92-F7C1   /home/pi/RetroPie/memorycard   vfat   defaults,noatime,users,rw,uid=pi,gid=pi   0   0
I thought this would mount on availability, do you know what options are added, for automount and so that it wont hang a startup process during boot for 180 seconds, when the usb is unplugged?

Automount is handled by the usbautomount service. If you don't have the disk permanently attached, then it's best to use the usbautomount service.

My other question, I don't know probably couldn't answer, on my last retropie installation, I had a startup time of around 15 seconds. I think i have done everything that I did on my last installation but I can still only get 18 seconds. Any ideas?

Startup times can be diagnosed with systemd-analyze - look into it to determine where the system spends it's time.

Efriim

The disk I plan on leaving attached. I'll look into options for mount; is option "nofail" supposed to mean that it will give up trying to mount if it is non-available?

systemd-analyze blame
the top four are nmbd.service 10.8s and hciuart.service 6.4s
then raspi-config.service 1.3s and smbd.service 1s

one is the net bios name server i was pretty sure I dont use that so i disabled it with
sudo systemctl stop nmbd
sudo systemctl disable nmbd

I do use bluetooth, It seems like it is unusually slow. Reading dmesg:
uart-pl011 3f201000.serial: no DMA platform data
brcmfmac: power management disabled
and brcmfmac: brcmf_c_preinit_dcmds; look like firmware warnings

raspi-config is probably nominal, though I don't know what it is calling or doing at startup.

I use samba smbd.service.