Root directory full?

[columboscoat]

@Murderlol go to terminal and type df -h and post the output.

[columboscoat]

@Murderlol also post the output of lsusb.

[Murderlol]

                                         Size     Used         Avail    Use%     Mounted On

dev/root 29G 29G 0 100% /
devtmpfs 364M 0 364M 0 /dev
tmpfs 368M 0 368M 0 /dev/shm
tmpfs 368M 5.3M 363M 2% /run
tmpfs 5M 4K 5M 1% /run/lock
tmpfs 368M 0 368M 0 /sys/fs/cgroup
/dev/mncblk0p1 57M 21M 37M 36% /boot
/dev/sda1 932G 176G 756G 19% /media/usb0

[columboscoat]

@Murderlol according to that your SD card is full. Is it?

[Murderlol]

@columboscoat That's what I'm trying to figure out...all of my games are stored on my external HDD, so the only thing that should be taking up space would be the save states...but I used it just fine yesterday and then when I added a few games to the external HDD it suddenly started giving me errors saying that it was out of space.

[columboscoat]

@Murderlol your ext hdd is only 19% full. Did you turn off USB ROM service? Otherwise your Pi will automatically grab all the new ROMs on your hdd.

[Murderlol]

I did not, that's probably it, thank you! I'll look into it and report back.

[columboscoat]

@Murderlol Please do, for others. That is definitely your issue. I'm 99% sure.

[Murderlol]

Almost forgot to reply but yes that was the problem. I turned off that service and cleaned up some space on the SD card and it works great again, thank you!

[columboscoat]

@Murderlol Ah, cool. Glad you got it sorted. Thanks for replying. It just helps others who search the forum with similar issues.