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by mickwombat
Wed Mar 18, 2020 10:02 am
Forum: Troubleshooting
Topic: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this
Replies: 129
Views: 108683

Re: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this

I have the Samsung Evo nVME thing and tried the quirks method and still get very poor performance. Tried a couple different adapters also. When I try to write a large file to the disk then at some point it will slow to a crawl and then I/O errors and it becomes unavailable. I reformatted in a macboo...
by mickwombat
Tue Sep 24, 2019 8:33 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 350
Views: 131836

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

Welcome to the forums. It appears you attempted to run directly on Raspbian's userland rather than a 64-bit chroot or container. This would not only fail to run java arm64, but any aarch64 binary. Instructions for setting up a 64-bit userland environment (chroot or systemd-nspawn container) mention...
by mickwombat
Mon Sep 23, 2019 8:44 pm
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 350
Views: 131836

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

I installed the 64bit kernel and I seem to be struggling with the 64bit version of java8, jdk-8u221-linux-arm64-vfp-hflt.tar.gz. The 32bit version works fine however. Whilst the 64bit seems to install ok, but I keep getting the following. pi@pi:~ $ java -version -bash: /usr/bin/java: No such file or...

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