Garz & Fricke Yocto, User Manual

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Contents
Important hints 2
1 Introduction 4
2 Overview 5
2.1 The bootloader 5
2.2 The Linux kernel 5
2.3 The root file system 5
2.4 The partition layout 6
2.5 Further information 6
3 Accessing the target system 8
3.1 Serial console 8
3.2 SSH console 9
3.3 Telnet console 10
3.4 Uploading files with TFTP 10
3.5 Uploading files with SFTP 11
4 Services and utilities 12
4.1 Services 12
4.1.1 Udev 13
4.1.2 D-Bus 14
4.1.3 SSH service 14
4.1.4 Telnet service 15
4.1.5 Module loading 16
4.1.6 Network initialization 16
4.1.7 Watchdog 16
4.1.8 Garz & Fricke shared configuration 18
4.1.9 Autocopy 18
4.1.10 Autostart 20
4.1.11 Cron 21
4.2 Utilities 22
4.2.1 Garz & Fricke system configuration 22
4.2.2 Power down mode 24
4.2.3 Reboot, Halt and Poweroff 24
4.2.4 Kernel command line 25
4.2.5 Bootlogo 25
4.2.6 Web Browser 27
4.2.7 Boot progress animation 28
4.2.8 Sendmail 29
5 Add-On Packages 30
5.0.9 Using the ’add-ons’ script 30
5.0.10 Direct installation 30
5.0.11 Manual installation 30
5.1 CUPS 31
5.1.1 Installation 31
5.1.2 Configuration 31
5.2 Debug 31
5.2.1 Installation 32
5.2.2 User Applications 32
5.2.3 Kernel Tracing 32
5.2.4 Network Monitoring 33
5.2.5 System Tests 33
6 Accessing the hardware 34
6.1 Digital I/O 34
6.2 Serial interfaces (RS-232 / RS-485 / MDB) 35
6.3 Ethernet 35
6.4 Real Time Clock (RTC) 35
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