Category: Working

Recently the 13″ MBPr got upgrade to macOS Sierra 10.12. If I want to let it can act as remote X11 server of Ubuntu 14.04 (my main working VM in intranet), I have to install a X.Org X Window System that runs on macOS.

XQuartz is for this purpose , see https://www.xquartz.org/.

Then the file /etc/ssh/sshd_conf needs to be modified, and the ssh service needs up. After ssh to Ubuntu, there are some error/warning messages:

Last login: Thu Oct  6 14:32:12 2016 from 10.0.0.1
manpath: can't set the locale; make sure $LC_* and $LANG are correct
linkirin@trusty:~$ gvim
Fontconfig warning: ignoring UTF-8: not a valid region tag

To fix these, add two more lines in the file:

linkirin@trusty:~$ cat /etc/default/locale
LANG="en_US.UTF-8"

linkirin@trusty:~$ cat /etc/default/locale
LANG="en_US.UTF-8"
LANGUAGE="en_US.UTF-8"
LC_ALL="en_US.UTF-8"

Reference links:

• About X11 and OS X – https://support.apple.com/en-us/HT201341
• Can’t run “ssh -X” on MacOS Sierra – http://stackoverflow.com/questions/39622173/cant-run-ssh-x-on-macos-sierra

That makes my left hand has easier life…

I choose this:

sudo vi /etc/default/keyboard

then change

XKBOPTIONS="ctrl:nocaps"

referrer links:

• The Flat Trantor Society: Where should the control key be?
  http://the-flat-trantor-society.blogspot.tw/2013/12/where-should-control-key-be.html
• keyboard – How do I turn Caps Lock into an extra Control key? – Ask Ubuntu
  http://askubuntu.com/questions/462021/how-do-i-turn-caps-lock-into-an-extra-control-key

Since the blog channel is gone and my ranking is not in top 10 anymore…

So, you will see a lot posts shared under “trs” category. The personal posts are still under “LinkedIn” category, but not synced to my LinkedIn.

The main workstation is MBPr and the desktop is RHEL 7.2. The need is exchanging files with USB flash disk or ISO files. The MBPr can format USB disk to exFAT and ISO with HFSplus. If I want to let RHEL 7 support these two file systems, I need to install following packages manually:

• exfat-utils
• fuse-exfat
• kmod-hfs
• kmod-hfsplus