See POSIX Signals in C for a list of signals…
Entering SSH passphrase once in a KDE Pulse session
If you want KDE to remember your SSH key’s passphrase for your whole desktop session you can create a ~/.config/autostart/ssh-add.desktop file like this:
[Desktop Entry] Type=Application Name=ssh-add Comment=Adds my private key to my session. Exec=/usr/bin/konsole -e 'ssh-add /home/$USER/.ssh/id_rsa'
Change a user’s User ID on Mac OS X
Did this. Hope I haven’t fucked my computer!
Seven habits of effective text editing
Got to read Seven habits of effective text editing…
…and Wholly Unbalanced Parentheses: My Vimrc…
…and slightly related OS X: Keyboard shortcuts…
Edit /etc/auto_master on Max OS X to disable /home auto mount
I had a problem creating files/directories in /home on my Mac.
To fix the problem I edited /etc/auto_master and commented out the /home line.
Then I rebooted and was able to use /home.
I heard on the grape vine that Time Machine doesn’t backup /home, which is no problem for me…
Fixing bug in /etc/cron.daily/etckeeper on Ubuntu Lucid
I was getting an error like this:
/etc/cron.daily/etckeeper:
bzr: ERROR: exceptions.UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 34: ordinal not in range(128)
Traceback (most recent call last):
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 853, in exception_to_return_code
return the_callable(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 1055, in run_bzr
ret = run(*run_argv)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 661, in run_argv_aliases
return self.run_direct(**all_cmd_args)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 665, in run_direct
return self._operation.run_simple(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 122, in run_simple
self.cleanups, self.func, *args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 156, in _do_with_cleanups
result = func(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/builtins.py", line 659, in run
no_recurse, action=action, save=not dry_run)
File "/usr/lib/python2.6/dist-packages/bzrlib/mutabletree.py", line 50, in tree_write_locked
return unbound(self, *args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/mutabletree.py", line 521, in smart_add
for subf in sorted(os.listdir(abspath)):
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 34: ordinal not in range(128)
bzr 2.1.4 on python 2.6.5 (Linux-2.6.35.4-rscloud-x86_64-with-Ubuntu-10.04-lucid)
arguments: ['/usr/bin/bzr', 'add', '-q', '.']
encoding: 'ANSI_X3.4-1968', fsenc: 'ANSI_X3.4-1968', lang: None
plugins:
bzrtools /usr/lib/python2.6/dist-packages/bzrlib/plugins/bzrtools [2.1.0]
etckeeper /usr/lib/python2.6/dist-packages/bzrlib/plugins/etckeeper [unknown]
launchpad /usr/lib/python2.6/dist-packages/bzrlib/plugins/launchpad [2.1.4]
netrc_credential_store /usr/lib/python2.6/dist-packages/bzrlib/plugins/netrc_credential_store [2.1.4]
news_merge /usr/lib/python2.6/dist-packages/bzrlib/plugins/news_merge [2.1.4]
*** Bazaar has encountered an internal error. This probably indicates a
bug in Bazaar. You can help us fix it by filing a bug report at
https://bugs.launchpad.net/bzr/+filebug
including this traceback and a description of the problem.
etckeeper warning: bzr add failed
Committing to: /etc/
modified apache2/passwd.htdigest
modified apache2/sites-available/svn.jj5.net-ssl
Committed revision 87.
I’ve tried to fix it by adding:
export LANG=en_AU.UTF-8 export LANGUAGE=en_AU:en
As lines 2 and 3 in /etc/cron.daily/etckeeper.
Now I’ll wait a day or two and see if it worked…
Linux swap
Reading about linux swap.
KDE Plasma Desktop hacks
I managed to get my desktop settings so that files on the desktop were sorted automatically. But I didn’t want that. I edited the ~/.kde/share/config/plasma-desktop-appletsrc file and set the sortingStrategy=0 and that disabled automatic alphabetical desktop sorting.
I wanted to run an application on my desktop when I dropped some files on it. To do that I created a process.desktop file like this:
#!/usr/bin/env xdg-open [Desktop Entry] Icon=unknown Name[en_US]=process Name=process Type=Application Exec=/home/jj5/bin/tmp/process-test %F
Note the “%F” to receive the file list. More information here and here.
Setting Desktop path in KDE on Debian Wheezy
I found the ~/.config/user-dirs.dirs file! Fun!
1000baseT for RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
I have a Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) in my new Ubuntu Trusty (14.04.1) server. As you can see here:
root@orac:/home/jj5# lspci ... 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) ...
I was having a problem with the card only supporting 100baseT speeds. I downloaded and installed the Realtek driver (and rebooted):
# bunzip2 r8168-8.039.00.tar.bz2 # tar xf r8168-8.039.00.tar # cd r8168-8.039.00 # ./autorun.sh # reboot
That didn’t fix the problem.
I installed the ethtool package and ran it:
# apt-get install ethtool
# ethtool p2p1
Settings for p2p1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
As you can see the speed is 100Mb/s, not 1000Mb/s. It says that 1000baseT full duplex is supported. I tried forcing the speed:
# ethtool -s p2p1 speed 1000 duplex full advertise 0 autoneg off
But that didn’t work. The ethtool program reported the card was still operating and 100Mb/s.
Then I tried plugging in a different cable… and that fixed the problem!