RH133_KernelServicesAndConfiguration.md

Kernel Modules

/lib/modules

• lsmod
• modprobe mod-name

Kernel Modules Configuration

• /sbin/modinfo mod-name
• /etc/modprobe.conf
• /lib/modules/$(uname -r)/modules.dep
• depmod -a
• `insmod mod-name
• rmmod mod-name `

The /proc filesystem

/proc is a virtual filesystem

• cat /proc/cpuinfo
  /proc subdirectories
• /proc/scsi/
• /proc/sys/
• /proc/<PID>/

/proc/sys configuration with sysctl

• /etc/sysctl.conf

Genernal Hardware Resources

kudzu

• /etc/sysconfig/hwconf
• /usr/share/hwdata/
• /proc filesystem
• hwbrowser

System Bus Support

PCI Bus

• /sbin/lspci
• /proc/bus/pci
ISA Bus
• /proc/isapnp

Hostwappable Bus Support

USB and IEEE 1934 Buses

• /sbin/hotplug,(/etc/hotplug)
• /proc/bus
• /sbin/lsusb
• /dev/usb
  PCMCIA Bus
• /sbin/cardmgr,(/etc/pcmcia)
• /proc/bus/pccard
• /sbin/cardctl utility

System Monitoring and Process Control

• top,gnome-system-monitor
• vmstat
• free
• nice -n <priority> <app>
• renice <priority> <PID>
• kill
• kill -l
• kill -9 <PID>