2021的收获：

1、有了女儿

2、决定了接下来的职业走向：不换工作

3、认识了聊得来的新朋友。

上次印象深刻的年末应该是2005年。那时我坐在明亮的大学宿舍里，还几位老师写Email祝新年快乐。也许那样的email持续了两三年。那时我还没有明白一生中与很多人只有很短的交集，短到只有一两个学期，甚至几个月、几天，而那时自己都不明白互相都只是过客。我曾经以为自己永远不可能忘掉中小学老师的名字。第一次租房时，我总是想着要给对门的邻居送点什么，但由于害羞一直没有采取行动。后来我明白了那种意识源于读高中之前的乡村生活。在乡下，房子都是建在宅基地上的，搬家的主要原因是分到了新的宅基地，而邻居则是一辈子的，当然要主动熟络起来。在城里尤其是大城市里，别说租房，即使买房了，邻居也是临时的，大家的生活背景和工作毫无交集，碰巧住得比较近。

这一年打了特别多的Dota2，也许玩游戏就像喝酒让我暂时忘却了其他事情。新的一年我不想再玩Dota2了，我想捡起Switch的健身环，通关MHRD，学习乐理基础，还有把拖欠许久的新概念英语学完。工作上，继续研读C++（经典/C++20）和专业书籍吧。很满意最近买的电纸书，阅读时也可以随时接过需要照顾的宝宝。

补记:

十年前，我对现在的愿景是：

有一个平等真诚相待的爱人；

有两个或更多的孩子；

做着一份自己认为其本身是有意义的工作；

仍然热爱生活。

还活着:)

父母虽然身体有恙，仍然健在

全家人身体健康，生活平淡而幸福

自己能够专注地工作和生活，有规划

换了新的服务器，启用了HTTPS，并且在证书更新上用了DNS-01 challenge。

I have a 12 TB USB drive connected to the Raspberry Pi 4 running Raspbian. The drive is formatted as btrfs.

The original line for this drive on fstab is

UUID=”8afd87a4-f10e-11ea-9666-bfec6b15c3e4″ /mnt/btrfsdrive btrfs defaults 0 0

The major issue is when USB drive is offline, RPi4 would not boot. A simple google search directs me to the well-known ArchLinux wikipage. This page implies that nofail,x-systemd.device-timeout=1ms works like a charm. I tried it and find it s**ks. When the USB drive is connected, only some directories are seen after booting, and this partition is NOT even shown in /proc/mounts

The root cause is obvious after comparing the booting log in /var/log/messages. timeout=1ms is not acceptable at all. In fact, the default timeout value is 90 seconds.

Not sure whether this issue happens only on RPi 4, or Raspbian, or Linux. Anyway, suggesting user to set such a small timeout value is misleading.

I am not able to correct the mistake on that wiki because the captcha during registration is What is the output of “pacman -V|base32|head -1” and I won’t install ArchLinux to get the answer…

Log of fstab options=default

Sep 7 20:51:33 myhost kernel: [ 23.019520] Btrfs loaded, crc32c=crc32c-generic
Sep 7 20:51:33 myhost kernel: [ 23.021470] BTRFS: device label myelements devid 1 transid 74693 /dev/sda
Sep 7 20:51:33 myhost kernel: [ 23.298985] BTRFS info (device sda): disk space caching is enabled
Sep 7 20:51:33 myhost kernel: [ 23.299003] BTRFS info (device sda): has skinny extents
Sep 7 20:51:33 myhost kernel: [ 27.445768] random: crng init done
Sep 7 20:51:33 myhost kernel: [ 27.445793] random: 7 urandom warning(s) missed due to ratelimiting
Sep 7 20:51:33 myhost rsyslogd: [origin software=”rsyslogd” swVersion=”8.1901.0″ x-pid=”385″ x-info=”https://www.rsyslog.com”] start
Sep 7 20:51:33 myhost kernel: [ 39.738751] uart-pl011 fe201000.serial: no DMA platform data
Sep 7 20:51:33 myhost kernel: [ 39.763978] 8021q: 802.1Q VLAN Support v1.8
Sep 7 20:51:33 myhost udisksd[401]: udisks daemon version 2.8.1 starting

Log of fstab options=nofail,x-systemd.device-timeout=1ms

Sep 7 20:44:44 myhost kernel: [ 22.972058] Btrfs loaded, crc32c=crc32c-generic
Sep 7 20:44:44 myhost kernel: [ 22.974082] BTRFS: device label myelements devid 1 transid 74693 /dev/sda
Sep 7 20:44:45 myhost kernel: [ 23.440453] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:44:45 myhost kernel: [ 24.015551] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:44:46 myhost lightdm[1325]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
Sep 7 20:44:46 myhost kernel: [ 24.976452] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:44:47 myhost kernel: [ 25.577489] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:44:47 myhost lightdm[1335]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
Sep 7 20:44:48 myhost kernel: [ 26.430257] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:44:48 myhost kernel: [ 27.014250] broken atomic modeset userspace detected, disabling atomic
Sep 7 20:50:53 myhost udisksd[358]: udisks daemon version 2.8.1 exiting

• To make the indicating arrow shown as straight line, not dashed line: manually set TERM to xterm-256color
• tmux will set TERM to screen-256color, which may fix the size of nested tmux. Solution: manually set TERM to xterm before launching a new tmux in a new machine.
• Use rpath to include common lib path in ELF, to make it run under CentOS5/6/7…

Tmux 2.3 adds a useful option called ‘pane-border-status‘. However I could not find out how to set pane title.  My walk around is as below

cat ~/mylocal/bin/setpane
#!/usr/bin/env csh
printf ‘\033]2;%s\033\\’ $1
tmux set-option -g pane-border-format ‘#{pane_index} “#{pane_title}”‘

This script cannot be called within Tcl. Hope tmux will add a ‘rename-pane’ command in the future.