Published on September 23, 2024 11:20 AM GMT
When I initially switched the computer portion of my rhythm stage setup over to a Raspberry PI Iwent with a 32GB SD card because that'srecommended. But I don't need very much space for what I'm doingand a bigger SD card makes copies slow: the cheap cards I've beenusing take me over anhour to write with my Mac's card reader.
I recently made some changes to my setup, removing supportfor bass whistle on the PI (now that I have an arduino-based version) and addingsupport for morefoot-bass options. This normally means round of re-imaging all ofmy SD cards: I have a bunch of them because SD card corruption isprobably the most common reason my system breaks [1], and it's easy tohave extra cards. I'm pretty sick of 82-minute waits, however, so Idecided to go down to four-GB SD cards.
I imaged a card with RaspberryPi OS Lite (64-bit), started setting it up, and immediately ranout of space. Turns out apt-get update and apt-getupgrade can use a lot of space. After apt-getpurge and apt-get clean, however, I had about300MB to spare. It would probably be possible to get a litedistribution to go a lot smaller than this, since the only actuallylarge thing I need is the sound font, fluid-soundfont-gmat 145MB, but this seems to work fine.
Regardless, it works great, and I can now image a card in 15min:
$ time sudo dd if=~/Desktop/rpi-4gb.dmg of=/dev/disk47782400+0 records in7782400+0 records out3984588800 bytes transferred in 877.723067 secs (4539688 bytes/sec)real 14m41.556suser 0m3.299ssys 0m28.741s
[1] This used to happen a lot, but now mostly doesn't. The hardwarehasn't changed, so I think the reason it has stopped happening is thatmy Raspberry PI is no longer responsible for the bass whistle. MyMIDI router doesn't write to the file system, and doesn't read beyondinitialization, while the bass whistle version used the file system topersist settings across reboots.
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