Re: [mh] Misterhouse on Raspberry Pi?

I've been really appreciating folks posting their experiences running 
solely on the microSD.  I don't run my vital RPis that way, because I 
didn't know what to expect, so this is good information.

Tom, did you do anything to reduce write traffic to the microSD? Setting 
"noatime" in /etc/fstab eliminates a lot of writes, because everytime a 
file is *read*, the access time is updated(written). I've heard of 
people making /var/log a tmpfs file system (if they don't need their 
logs), optionally sweeping them to the SD card on an hourly basis. 
Removing swap and installing zram instead would help (but beware the 
current 8G bug in zram if you have an 8G RPi 4). Did you do any of these 
things, or others?

                           -Brian M.

On 1/25/21 12:28 PM, Tom MacLean wrote:
> I was going to chime in that I just run MH on the microSD without 
> issues, but I just had a failure (on a 4 year old SD), my second such 
> failure. Same as last time: the system boots fine, MH runs without 
> issue, but none of my file changes persist after reboot. It’s just 
> writing to the SDs buffer, not to the flash.
>
> 4 years isn’t too bad though.
>
> Sent from my iPhone
>
>> On Jan 23, 2021, at 10:32 AM, Giles Godart-Brown 
>> <[email protected]> wrote:
>>
>> 
>>
>> I've just had a go at tidying up the Wiki for Raspberry Pi 
>> (https://github.com/hollie/misterhouse/wiki/Raspberry-Pi), moving 
>> many of the optional bits onto separate pages so it doesn't look so 
>> daunting and adding things I've found during my many installs.
>>
>> Giles
>>
>> On 23/01/2021 12:55, Richard F wrote:
>>>
>>> When I started using an SSD over a decade ago or so (when burning 
>>> out SSD's was a big concern, as lifetimes weren't initially 
>>> specified/trusted), I reduced mh data saves by a factor of 5 (in the 
>>> mh file itself in /bin), like so, which has served me well:
>>>
>>> &object_states_save if &new_minute(5) and !($Time_Start_time or 
>>> $Time_Stop_time);
>>> #    &object_states_save if $New_Minute and !($Time_Start_time or 
>>> $Time_Stop_time); # Skip if in accelerated mode
>>>
>>> My current Samsung SSD has 81000 hrs on it - over 9yrs - and still 
>>> 78% of its life left according the smartd.
>>>
>>> I'd also be interested in a Pi guide as that may be the eventual mh 
>>> destination.  I'm a big fan of the Picoreplayer which has a great 
>>> feature of running totally from RAM once booted, so you can switch 
>>> it off without worries.  Though mh needs to write status, I could 
>>> forsee a picore or similar mini distro that includes mh, and saves 
>>> its config/recovers (if lost) to network storage or cloud.
>>>
>>>
>>> On 21/01/2021 7:54 pm, Gianni Veloce wrote:
>>>> hi guys
>>>> as my old Ubuntu laptop running MH is almost broken i am looking to 
>>>> move to Raspberry Pi.
>>>> is there any detailed guide how to setup MH on Rpi?
>>>> and are any hints to avoid the abuse of the SD card with writes 
>>>> from the OS and MH?
>>>> Would installation on a USB drive help in this?
>>>> TIA
>>>> GV
>>>>
>>>>
>>>
>>>
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