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树莓派2代的Model B采用Broadcom BCM2836 900MHz的四核SoC，1GB内存，是新一代开拓者，兼容1代B+。相比之下，树莓派2的性能比1代提升6倍，内存翻了一番。Raspberry Pi 2不仅能跑全系列ARM GNU/Linux发行版，而且支持Snappy Ubuntu Core及Windows 10 [1]IoT Core(物联网版本)
一台非常老的树莓派2开发板，一直以为坏掉了，原来是mini SD卡坏了，换了一张卡就好了。装FreeBSD14.1 。启动后，pkg安装软件报错：
pkg install wget
The package management tool is not yet installed on your system.
Do you want to fetch and install it now? [y/N]: y
Bootstrapping pkg from pkg+https://pkg.FreeBSD.org/FreeBSD:14:armv7/quarterly, please wait...
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
Certificate verification failed for /CN=pkg.freebsd.org
00000121:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/statem/statem_clnt.c:1890:
pkg: Error fetching https://pkg.FreeBSD.org/FreeBSD:14:armv7/quarterly/Latest/pkg.txz: Authentication error
A pre-built version of pkg could not be found for your system.
Consider changing PACKAGESITE or installing it from ports: 'ports-mgmt/pkg'.
这时候系统里面ports也没有，git也没有，就卡在这里了。
百度搜搜，有人说是不是时钟的问题，查看系统时间：
date
Fri May 31 11:59:53 UTC 2024时间确实不对，设置时间：
date 2411211600
Thu Nov 21 16:00:00 UTC 2024好了，pkg更新好了：
pkg update
The package management tool is not yet installed on your system.
Do you want to fetch and install it now? [y/N]: y
Bootstrapping pkg from pkg+https://pkg.FreeBSD.org/FreeBSD:14:armv7/quarterly, please wait...
Verifying signature with trusted certificate pkg.freebsd.org.2013102301... done
Installing pkg-1.21.3...
Extracting pkg-1.21.3: 100%这时候就可以使用pkg search xx来寻找自己喜欢的pkg包了。当然arm 7板子的pkg包类型比较少。
安装xfce4试试：
pkg install xfce4-conf安装ports系统
pkg install git
git clone --depth 1 https://git.FreeBSD.org/ports.git /usr/ports抽空到ports系统里去看看pkg。大约是比pkg多一点。
pip 安装fastapi的时候，编译pydantic-core==2.27.0失败。尝试安装rust试试，安装失败。
尝试安装摄像头和gpio支持：
pip3 install picamera RPi.GPIO尝试失败。。。。
算了，还是不用FreeBSD，老老实实去用树莓派官方的系统了。