X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=grml_tips;h=25973730615ddc7aa36cb2c587673a8e59e479ae;hb=d15fdf23c80d7e2bee17ed539658d3ae1b9fab27;hp=636f6b23c96a5003ef5c59e9efbc92a1094b70df;hpb=17d10f09c7f6ad8c358d5e3ca3a4e69be4e28448;p=grml-tips.git

diff --git a/grml_tips b/grml_tips
index 636f6b2..2597373 100644
--- a/grml_tips
+++ b/grml_tips
@@ -573,11 +573,15 @@ echo -e "s/\r//g" > dos2unix.sed; sed -f dos2unix.sed < dosfile > unixfile
 -- 
 Save live audio stream to file:
 
-% mplayer -ao pcm:file=$FILE
+% mplayer -ao pcm:file=$FILE $URL
+-- 
+Save live stream to file:
+
+% mplayer -dumpfile $FILE -dumpstream $STREAM
 
 or
 
-% mencoder mms://file.wmv -o $FILE -ovc copy -oac copy
+% mencoder mms://$URL -o $FILE -ovc copy -oac copy
 
 or
 
@@ -2719,7 +2723,7 @@ Enable shadow passwords:
 
 # shadowconfig on
 -- 
-Set up an IPv6 tunneln on grml:
+Set up an IPv6 tunnel on grml:
 
 # ipv6-tunnel start
 -- 
@@ -3009,3 +3013,116 @@ Hints:
 Find dangling symlinks using zsh:
 
 % ls **/*(-@)
+-- 
+Use approx with runit supervision
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Install the packages:
+# apt-get install approx runit
+
+Add user approxlog for the logging daemon:
+# adduser --system --home /nonexistent --no-create-home approxlog
+
+Create config directory:
+# mkdir /etc/sv/approx
+
+Use /var/run/sv.approx as supervise directory:
+# ln -s /var/run/sv.approx /etc/sv/approx/supervise
+
+# cat > /etc/sv/approx/run << EOF
+#!/bin/sh
+echo 'approx starting'
+exec approx -f 2>&1
+EOF
+
+You normally do not need a logging service for approx because it logs
+to syslog too. So just for completion:
+# mkdir -p /etc/sv/approx/log
+# ln -s /var/run/sv.approx.log /etc/sv/approx/log/supervise
+# cat > /etc/sv/approx/log/run << EOF
+#!/bin/sh
+set -e
+LOG="/var/log/approx"
+test -d "$LOG" || mkdir -p -m2750 "$LOG" && chown approxlog:adm "$LOG"
+exec chpst -uapproxlog svlogd -tt -v "$LOG"
+EOF
+
+Now activate the new approx service (will be started within 5s):
+# ln -s /etc/sv/approx/ /var/service/
+
+Make approx managed via runit available via init-script interface:
+# dpkg-divert --local --rename /etc/init.d/approx
+# ln -s /usr/bin/sv /etc/init.d/approx
+-- 
+Remote-reboot a grml system using SysRQ via /proc (execute as root):
+
+eject &>/dev/null
+umount -l /cdrom
+eject /dev/cdrom
+echo b > /proc/sysrq-trigger
+-- 
+Show what happens on /dev/sda0:
+
+# mount the debugfs to relay kernel info to userspace
+mount -t debugfs none /sys/kernel/debug
+
+# is a convenient wrapper arround blktrace and blkparse
+btrace /dev/sda0
+-- 
+Convert Flash to Avi:
+
+% ffmpeg -i input.flv output.avi
+-- 
+Usage example for cryptsetup / -luks encrypted partition on LVM:
+
+volume group name:   x61
+logical volume name: home
+
+echo "grml-crypt_home /dev/mapper/x61-home none luks" >> /etc/crypttab
+Start cryptdisks
+mount /dev/mapper/grml-crypt_home /mnt/test
+-- 
+fdisk/parted/... complains with something like
+'unable to open /dev/sda - unrecognised disk label'?!
+
+See http://grml.org/faq/#fdisk =>
+
+* use /sbin/fdisk.distrib from util-linux
+* switch to sfdisk, cfdisk,...
+* use parted's mklabel command (but please read the
+  parted manual before executing this command)
+-- 
+dmraid - support for SW-RAID / FakeRAID controllers
+like Highpoint HPT and Promise FastTrack
+
+Activate all software RAID sets discovered:
+# dmraid -ay
+
+Deactivates all active software RAID sets:
+# dmraid  -an
+
+Discover all software RAID devices supported on the system:
+# dmraid -r
+-- 
+Extract winmail.dat:
+
+List content:
+% ytnef winmail.dat
+
+Extract files to current directory:
+% ytnef -f . winmail.dat
+-- 
+Approx - Debian package proxy/cacher howto
+
+% apt-get install approx
+% echo 'debian  http://ftp.de.debian.org/debian' >>/etc/approx/approx.conf
+% Restart approx
+
+Add your new approx to sources.list
+
+eg.
+deb http://localhost:9999/debian  unstable  main contrib non-free
+
+use approx in grml-debootstrap like:
+% grml-debootstrap -r lenny -t /dev/sda1 -m http://127.0.0.1:9999/debian
+--