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== CPU Frequency == | == CPU Frequency == | ||
=== Set min / max values === | |||
create file if not existing | |||
/etc/default/cpufrequtils | |||
define min/max value and governor | |||
GOVERNOR="ondemand" | |||
MAX_SPEED="3.6GHz" | |||
MIN_SPEED="1.4GHz" | |||
=== Kernel Configuration === | |||
<pre> | <pre> | ||
Revision as of 03:16, 11 January 2015
Configurations
Some notes on kernel configuration options (linux 3.3.8) with some notes about intel splash on a intel chipset notebook. Most of the following is a server setup on AMD though.
CPU Frequency
Set min / max values
create file if not existing
/etc/default/cpufrequtils
define min/max value and governor
GOVERNOR="ondemand" MAX_SPEED="3.6GHz" MIN_SPEED="1.4GHz"
Kernel Configuration
┌───────────────────────────────────────────── General setup ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Prompt for development and/or incomplete code/drivers │ │ │ │ () Cross-compiler tool prefix │ │ │ │ (eko4) Local version - append to kernel release │ │ │ │ [*] Automatically append version information to the version string │ │ │ │ Kernel compression mode (Gzip) ---> │ │ │ │ ((none)) Default hostname │ │ │ │ [*] Support for paging of anonymous memory (swap) │ │ │ │ [*] System V IPC │ │ │ │ [*] POSIX Message Queues │ │ │ │ [*] BSD Process Accounting │ │ │ │ [ ] BSD Process Accounting version 3 file format │ │ │ │ [*] open by fhandle syscalls │ │ │ │ [ ] Export task/process statistics through netlink (EXPERIMENTAL) │ │ │ │ [*] Auditing support │ │ │ │ [*] Enable system-call auditing support │ │ │ │ [ ] Make audit loginuid immutable │ │ │ │ IRQ subsystem ---> │ │ │ │ RCU Subsystem ---> │ │ │ │ < > Kernel .config support │ │ │ │ (15) Kernel log buffer size (16 => 64KB, 17 => 128KB) │ │ │ │ [ ] Control Group support ---> │ │ │ │ -*- Namespaces support ---> │ │ │ │ [ ] Automatic process group scheduling │ │ │ │ [*] Enable deprecated sysfs features to support old userspace tools │ │ │ │ [ ] Enable deprecated sysfs features by default │ │ │ │ -*- Kernel->user space relay support (formerly relayfs) │ │ │ │ [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support │ │ │ │ () Initramfs source file(s) │ │ │ │ [*] Optimize for size │ │ │ │ [ ] Configure standard kernel features (expert users) ---> │ │ │ │ [ ] Embedded system │ │ │ │ Kernel Performance Events And Counters ---> │ │ │ │ [ ] Disable heap randomization │ │ │ │ Choose SLAB allocator (SLAB) ---> │ │ │ │ [ ] Profiling support │ │ │ │ [ ] Kprobes │ │ │ │ [ ] Optimize trace point call sites │ │ │ │ GCOV-based kernel profiling ---> │ │ ...
┌───────────────────────────────────────────── RCU Subsystem ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ RCU Implementation (Tree-based hierarchical RCU) ---> │ │ │ │ [ ] Enable tracing for RCU │ │ │ │ (32) Tree-based hierarchical RCU fanout value │ │ │ │ [ ] Disable tree-based hierarchical RCU auto-balancing │ │ │ │ [ ] Accelerate last non-dyntick-idle CPU's grace periods │ │ │ │ │ │
┌─────────────────────────────────────────── Namespaces support ───────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Namespaces support │ │ │ │ [*] UTS namespace │ │ │ │ [*] IPC namespace │ │ │ │ [ ] User namespace (EXPERIMENTAL) │ │ │ │ [*] PID Namespaces │ │ │ │ [*] Network namespace │ │
┌───────────────────────────────────── Enable loadable module support ─────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Enable loadable module support │ │ │ │ [ ] Forced module loading │ │ │ │ [*] Module unloading │ │ │ │ [*] Forced module unloading │ │ │ │ [*] Module versioning support │ │ │ │ [ ] Source checksum for all modules │ │
┌───────────────────────────────────────── Enable the block layer ─────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Enable the block layer │ │ │ │ -*- Block layer SG support v4 │ │ │ │ -*- Block layer SG support v4 helper lib │ │ │ │ [ ] Block layer data integrity support │ │ │ │ Partition Types ---> │ │ │ │ IO Schedulers ---> │ │
┌───────────────────────────────────────────── IO Schedulers ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > Deadline I/O scheduler │ │ │ │ <*> CFQ I/O scheduler │ │ │ │ Default I/O scheduler (CFQ) ---> │ │ │ │ │ │
┌────────────────────────────────────── Processor type and features ───────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Tickless System (Dynamic Ticks) │ │ │ │ [*] High Resolution Timer Support │ │ │ │ [*] Symmetric multi-processing support │ │ │ │ [*] Enable MPS table │ │ │ │ [ ] Support for extended (non-PC) x86 platforms │ │ │ │ [*] Single-depth WCHAN output │ │ │ │ [ ] Paravirtualized guest support ---> │ │ │ │ [ ] Memtest │ │ │ │ Processor family (Generic-x86-64) ---> │ │ │ │ [ ] IBM Calgary IOMMU support │ │ │ │ [ ] Enable Maximum number of SMP Processors and NUMA Nodes │ │ │ │ (8) Maximum number of CPUs │ │ │ │ [ ] SMT (Hyperthreading) scheduler support │ │ │ │ [*] Multi-core scheduler support │ │ │ │ [ ] Fine granularity task level IRQ time accounting │ │ │ │ Preemption Model (Voluntary Kernel Preemption (Desktop)) ---> │ │ │ │ [*] Reroute for broken boot IRQs │ │ │ │ [*] Machine Check / overheating reporting │ │ │ │ [*] Intel MCE features │ │ │ │ [*] AMD MCE features │ │ │ │ <M> Machine check injector support │ │ │ │ < > Dell laptop support │ │ │ │ <M> /dev/cpu/microcode - microcode support │ │ │ │ [*] Intel microcode patch loading support │ │ │ │ [*] AMD microcode patch loading support │ │ │ │ <M> /dev/cpu/*/msr - Model-specific register support │ │ │ │ <M> /dev/cpu/*/cpuid - CPU information support │ │ │ │ [ ] Numa Memory Allocation and Scheduler Support │ │ │ │ Memory model (Sparse Memory) ---> │ │ │ │ [*] Sparse Memory virtual memmap │ │ │ │ [ ] Allow for memory hot-add │ │ │ │ -*- Allow for memory compaction │ │ │ │ -*- Page migration │ │ │ │ [ ] Enable KSM for page merging │ │ │ │ (65536) Low address space to protect from user allocation │ │ │ │ [ ] Enable recovery from hardware memory errors │ │ │ │ [*] Transparent Hugepage Support │ │ │ │ Transparent Hugepage Support sysfs defaults (always) ---> │ │ │ │ [*] Enable cleancache driver to cache clean pages if tmem is present │ │ │ │ [*] Check for low memory corruption │ │ │ │ [ ] Set the default setting of memory_corruption_check │ │ │ │ (64) Amount of low memory, in kilobytes, to reserve for the BIOS │ │ │ │ -*- MTRR (Memory Type Range Register) support │ │ │ │ [*] MTRR cleanup support │ │ │ │ (0) MTRR cleanup enable value (0-1) │ │ │ │ (1) MTRR cleanup spare reg num (0-7) │ │ │ │ [ ] EFI runtime service support │ │ │ │ [*] Enable seccomp to safely compute untrusted bytecode │ │ │ │ [ ] Enable -fstack-protector buffer overflow detection (EXPERIMENTAL) │ │ │ │ Timer frequency (300 HZ) ---> │ │ │ │ [ ] kexec system call │ │ │ │ [ ] kernel crash dumps │ │ │ │ [ ] Build a relocatable kernel │ │ │ │ -*- Support for hot-pluggable CPUs │ │ │ │ [ ] Compat VDSO support │ │ │ │ [ ] Built-in kernel command line │ │
┌─────────────────────────────────── Power management and ACPI options ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Suspend to RAM and standby │ │ │ │ [*] Hibernation (aka 'suspend to disk') │ │ │ │ (/dev/md4) Default resume partition │ │ │ │ [*] Run-time PM core functionality │ │ │ │ [ ] Power Management Debug Support │ │ │ │ [*] ACPI (Advanced Configuration and Power Interface) Support ---> │ │ │ │ [ ] SFI (Simple Firmware Interface) Support ---> │ │ │ │ CPU Frequency scaling ---> │ │ │ │ -*- CPU idle PM support │ │ │ │ [ ] Cpuidle Driver for Intel Processors │ │ │ │ Memory power savings ---> │ │ │ │ │ │
┌─────────────────────── ACPI (Advanced Configuration and Power Interface) Support ────────────────────────┐
...
│ │
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ --- ACPI (Advanced Configuration and Power Interface) Support │ │
│ │ [ ] Deprecated /proc/acpi files │ │
│ │ [ ] Deprecated power /proc/acpi directories │ │
│ │ < > EC read/write access through /sys/kernel/debug/ec │ │
│ │ [ ] Deprecated /proc/acpi/event support │ │
│ │ <M> AC Adapter │ │
│ │ <M> Battery │ │
│ │ <M> Button │ │
│ │ <M> Video │ │
│ │ <M> Fan │ │
│ │ [ ] Dock │ │
│ │ <M> Processor │ │
│ │ <M> Processor Aggregator │ │
│ │ <M> Thermal Zone │ │
│ │ [ ] Debug Statements │ │
│ │ < > PCI slot detection driver │ │
│ │ {M} Container and Module Devices (EXPERIMENTAL) │ │
│ │ <M> Smart Battery System │ │
│ │ -*- Hardware Error Device │ │
│ │ <M> Allow ACPI methods to be inserted/replaced at run time │ │
│ │ [*] ACPI Platform Error Interface (APEI) │ │
│ │ [*] APEI Generic Hardware Error Source │ │
│ │ < > APEI Error INJection (EINJ) │ │
│ │ < > APEI Error Record Serialization Table (ERST) Debug Support │ │
│ └──────────────────────────────────────────────────────────────────────────────────────────────────────┘ │
┌───────────────────────────────────────── CPU Frequency scaling ──────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] CPU Frequency scaling │ │ │ │ <M> CPU frequency translation statistics │ │ │ │ [*] CPU frequency translation statistics details │ │ │ │ Default CPUFreq governor (userspace) ---> │ │ │ │ <M> 'performance' governor │ │ │ │ <M> 'powersave' governor │ │ │ │ -*- 'userspace' governor for userspace frequency scaling │ │ │ │ <M> 'ondemand' cpufreq policy governor │ │ │ │ <M> 'conservative' cpufreq governor │ │ │ │ x86 CPU frequency scaling drivers ---> │ │ │ │ │ │
┌─────────────────────────────────── x86 CPU frequency scaling drivers ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <M> Processor Clocking Control interface driver │ │ │ │ <M> ACPI Processor P-States driver │ │ │ │ <M> AMD Opteron/Athlon64 PowerNow! │ │ │ │ < > Intel Enhanced SpeedStep (deprecated) │ │ │ │ < > Intel Pentium 4 clock modulation │ │ │ │ *** shared options *** │ │ │ │ │ │
┌───────────────────────────────────────── Bus options (PCI etc.) ─────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] PCI support │ │ │ │ [*] Support mmconfig PCI config space access │ │ │ │ [*] PCI Express support │ │ │ │ [ ] Root Port Advanced Error Reporting support │ │ │ │ -*- PCI Express ASPM control │ │ │ │ [ ] Debug PCI Express ASPM │ │ │ │ [*] Message Signaled Interrupts (MSI and MSI-X) │ │ │ │ [ ] PCI Debugging │ │ │ │ < > PCI Stub driver │ │ │ │ [*] Interrupts on hypertransport devices │ │ │ │ [ ] PCI IOV support │ │ │ │ [ ] PCI PRI support │ │ │ │ [ ] PCI PASID support │ │ │ │ <*> PCI IO-APIC hotplug support │ │ │ │ < > PCCard (PCMCIA/CardBus) support ---> │ │ │ │ < > Support for PCI Hotplug ---> │ │ │ │ [ ] RapidIO support │ │ │ │ │ │
┌──────────────────────────────────────────── Graphics support ────────────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ < > /dev/agpgart (AGP Support) ---> │ │
│ │ -*- VGA Arbitration │ │
│ │ (2) Maximum number of GPUs │ │
│ │ [*] Laptop Hybrid Graphics - GPU switching support │ │
│ │ <M> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ---> │ │
│ │ < > Intel GMA500 Stub Driver │ │
│ │ <M> Lowlevel video output switch controls │ │
│ │ {*} Support for frame buffer devices ---> │ │
│ │ -*- Backlight & LCD device support ---> │ │
│ │ Console display driver support ---> │ │
│ │ [*] Bootup logo ---> │ │
│ │ │ │
server intel chipset
┌──────────────────── Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ─────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) │ │ │ │ < > 3dfx Banshee/Voodoo3+ │ │ │ │ < > ATI Rage 128 │ │ │ │ < > ATI Radeon │ │ │ │ < > Matrox g200/g400 │ │ │ │ < > Via unichrome video cards │ │ │ │ < > Savage video cards │ │ │ │ <M> DRM driver for VMware Virtual GPU │ │ │ │ <M> Intel GMA5/600 KMS Framebuffer │ │ │ │ [ ] Intel GMA600 support (Experimental) │ │ │ │ [ ] Intel GMA3600/3650 support (Experimental) │ │ │ │ │ │
notebook intel chipset
┌──────────────────── Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ─────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) │ │ │ │ < > 3dfx Banshee/Voodoo3+ │ │ │ │ < > ATI Rage 128 │ │ │ │ < > ATI Radeon │ │ │ │ <M> Intel 8xx/9xx/G3x/G4x/HD Graphics │ │ │ │ [*] Enable modesetting on intel by default │ │ │ │ < > Matrox g200/g400 │ │ │ │ < > SiS video cards │ │ │ │ < > Via unichrome video cards │ │ │ │ < > Savage video cards │ │ │ │ <M> DRM driver for VMware Virtual GPU │ │ │ │ │ │
notebook intel chipset i915 with splash activ
┌──────────────────────────────────── Support for frame buffer devices ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Support for frame buffer devices │ │ │ │ [ ] Enable firmware EDID │ │ │ │ [ ] Framebuffer foreign endianness support ---> │ │ │ │ -*- Enable Video Mode Handling Helpers │ │ │ │ [ ] Enable Tile Blitting Support │ │ │ │ *** Frame buffer hardware drivers *** │ │ │ │ < > Cirrus Logic support │ │ │ │ < > Permedia2 support │ │ │ │ < > CyberPro 2000/2010/5000 support │ │ │ │ < > Arc Monochrome LCD board support │ │ │ │ [ ] Asiliant (Chips) 69000 display support │ │ │ │ [ ] IMS Twin Turbo display support │ │ │ │ < > VGA 16-color graphics support │ │ │ │ < > Userspace VESA VGA graphics support │ │ │ │ [ ] VESA VGA graphics support │ │ │ │ < > N411 Apollo/Hecuba devkit support │ │ │ │ < > Hercules mono graphics support │ │ │ │ < > Epson S1D13XXX framebuffer support │ │ │ │ < > nVidia Framebuffer Support │ │ │ │ < > nVidia Riva support │ │ │ │ < > Intel LE80578 (Vermilion) support │ │ │ │ < > Matrox acceleration │ │ │ │ < > ATI Radeon display support │ │ │ │ < > ATI Rage128 display support │ │ │ │ < > ATI Mach64 display support │ │ │ │ < > S3 Trio/Virge support │ │ │ │ < > SiS/XGI display support │ │ │ │ < > VIA UniChrome (Pro) and Chrome9 display support │ │ │ │ < > NeoMagic display support │ │ │ │ < > IMG Kyro support │ │ │ │ < > 3Dfx Banshee/Voodoo3/Voodoo5 display support │ │ │ │ < > 3Dfx Voodoo Graphics (sst1) support │ │ │ │ < > VIA VT8623 support │ │ │ │ < > Trident/CyberXXX/CyberBlade support │ │ │ │ < > ARK 2000PV support │ │ │ │ < > Fujitsu carmine frame buffer support │ │ │ │ < > Toshiba Mobile IO FrameBuffer support │ │ │ │ < > Silicon Motion SM501 framebuffer support │ │ │ │ <M> SMSC UFX6000/7000 USB Framebuffer support │ │ │ │ < > Displaylink USB Framebuffer support │ │ │ │ < > Virtual Frame Buffer support (ONLY FOR TESTING!) │ │ │ │ < > E-Ink Metronome/8track controller support │ │ │ │ < > Fujitsu MB862xx GDC support │ │ │ │ < > E-Ink Broadsheet/Epson S1D13521 controller support │ │
┌───────────────────────────────────── Console display driver support ─────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ -*- VGA text console │ │
│ │ [*] Enable Scrollback Buffer in System RAM │ │
│ │ (64) Scrollback Buffer Size (in KB) │ │
│ │ {*} Framebuffer Console support │ │
│ │ -*- Map the console to the primary display device │ │
│ │ [*] Framebuffer Console Rotation │ │
│ │ [*] Select compiled-in fonts │ │
│ │ [ ] VGA 8x8 font │ │
│ │ -*- VGA 8x16 font │ │
│ │ [ ] Mac console 6x11 font (not supported by all drivers) │ │
│ │ [ ] console 7x14 font (not supported by all drivers) │ │
│ │ [ ] Pearl (old m68k) console 8x8 font │ │
│ │ [ ] Acorn console 8x8 font │ │
│ │ [ ] Mini 4x6 font │ │
│ │ [ ] Sparc console 8x16 font │ │
│ │ [ ] Sparc console 12x22 font (not supported by all drivers) │ │
│ │ [ ] console 10x18 font (not supported by all drivers) │ │
server
┌───────────────────────────────────── Console display driver support ─────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ -*- VGA text console │ │
│ │ [ ] Enable Scrollback Buffer in System RAM │ │
│ │ {*} Framebuffer Console support │ │
│ │ -*- Map the console to the primary display device │ │
│ │ [*] Framebuffer Console Rotation │ │
│ │ [*] Select compiled-in fonts │ │
│ │ [ ] VGA 8x8 font │ │
│ │ -*- VGA 8x16 font │ │
│ │ [ ] Mac console 6x11 font (not supported by all drivers) │ │
│ │ [ ] console 7x14 font (not supported by all drivers) │ │
│ │ [ ] Pearl (old m68k) console 8x8 font │ │
│ │ [ ] Acorn console 8x8 font │ │
│ │ [ ] Mini 4x6 font │ │
│ │ [ ] Sparc console 8x16 font │ │
│ │ [ ] Sparc console 12x22 font (not supported by all drivers) │ │
│ │ [ ] console 10x18 font (not supported by all drivers) │ │
│ │ │ │
┌───────────────────────────────────────────── Device Drivers ─────────────────────────────────────────────┐
...
│ ┌────────────────^(-)──────────────────────────────────────────────────────────────────────────────────┐ │
│ │ <M> Sound card support ---> │ │
│ │ [*] HID Devices ---> │ │
│ │ [*] USB support ---> │ │
│ │ < > Ultra Wideband devices (EXPERIMENTAL) ---> │ │
│ │ < > MMC/SD/SDIO card support ---> │ │
│ │ < > Sony MemoryStick card support (EXPERIMENTAL) ---> │ │
│ │ -*- LED Support ---> │ │
│ │ [ ] Accessibility support ---> │ │
│ │ < > InfiniBand support ---> │ │
│ │ [*] EDAC (Error Detection And Correction) reporting ---> │ │
│ │ [*] Real Time Clock ---> │ │
│ │ [*] DMA Engine support ---> │ │
│ │ [ ] Auxiliary Display support ---> │ │
│ │ {M} Userspace I/O drivers ---> │ │
│ │ Virtio drivers ---> │ │
│ │ Microsoft Hyper-V guest support ---> │ │
│ │ [ ] Staging drivers ---> │ │
│ │ [*] X86 Platform Specific Device Drivers ---> │ │
│ │ Hardware Spinlock drivers ---> │ │
│ │ [*] IOMMU Hardware Support ---> │ │
│ │ [ ] Virtualization drivers ---> │ │
│ │ [*] Generic Dynamic Voltage and Frequency Scaling (DVFS) support ---> │ │
┌────────────────────── Generic Dynamic Voltage and Frequency Scaling (DVFS) support ──────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Generic Dynamic Voltage and Frequency Scaling (DVFS) support │ │ │ │ *** DEVFREQ Governors *** │ │ │ │ [*] Simple Ondemand │ │ │ │ [*] Performance │ │ │ │ [*] Powersave │ │ │ │ [*] Userspace │ │ │ │ *** DEVFREQ Drivers *** │ │ │ │ │ │
┌──────────────────────────────────────────── Library routines ────────────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ {M} CRC-CCITT functions │ │
│ │ {M} CRC16 functions │ │
│ │ <M> CRC calculation for the T10 Data Integrity Field │ │
│ │ {M} CRC ITU-T V.41 functions │ │
│ │ -*- CRC32 functions │ │
│ │ <M> CRC7 functions │ │
│ │ {M} CRC32c (Castagnoli, et al) Cyclic Redundancy-Check │ │
│ │ <M> CRC8 function │ │
│ │ -*- XZ decompression support │ │
│ │ <M> XZ decompressor tester │ │
│ │ [*] Averaging functions │ │
│ │ <M> CORDIC algorithm │ │
│ │ │ │
┌───────────────────────────── Multiple devices driver support (RAID and LVM) ─────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Multiple devices driver support (RAID and LVM) │ │ │ │ <M> RAID support │ │ │ │ <M> Linear (append) mode │ │ │ │ <M> RAID-0 (striping) mode │ │ │ │ <M> RAID-1 (mirroring) mode │ │ │ │ < > RAID-10 (mirrored striping) mode │ │ │ │ <M> RAID-4/RAID-5/RAID-6 mode │ │ │ │ <M> Multipath I/O support │ │ │ │ <M> Faulty test module for MD │ │ │ │ <M> Device mapper support │ │ │ │ [ ] Device mapper debugging support │ │ │ │ <M> Crypt target support │ │ │ │ <M> Snapshot target │ │ │ │ <M> Mirror target │ │ │ │ <M> Zero target │ │ │ │ <M> Multipath target │ │ │ │ < > I/O Path Selector based on the number of in-flight I/Os │ │ │ │ < > I/O Path Selector based on the service time │ │ │ │ │ │
┌─────────────────────────────────────────── I2O device support ───────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- I2O device support │ │ │ │ [*] Enable LCT notification │ │ │ │ [*] Enable Adaptec extensions │ │ │ │ [*] Enable 64-bit DMA │ │ │ │ <M> I2O Configuration support │ │ │ │ [ ] Enable ioctls (OBSOLETE) │ │ │ │ <M> I2O Bus Adapter OSM │ │ │ │ <M> I2O Block OSM │ │ │ │ <M> I2O SCSI OSM │ │ │ │ <M> I2O /proc support │ │
Alternatives
Configure default browser to custom firefox installation
- list:
update-alternatives --list www-browser /usr/bin/lynx.cur /usr/bin/w3m
- install:
sudo update-alternatives --install /etc/alternatives/x-www-browser www-browser /opt/custom/firefox/firefox 1 [sudo] password for <user>: update-alternatives: renaming www-browser link from /usr/bin/www-browser to /etc/alternatives/x-www-browser. <user>@<host>:/home-lisa/emanoil$ update-alternatives --list www-browser /opt/custom/firefox/firefox /usr/bin/lynx.cur /usr/bin/w3m
- set:
sudo update-alternatives --set www-browser /opt/custom/firefox/firefox
Terminal
Size
For anyone that would like to find the terminal window size, which can also be important can use these commands:
Code:
WIDTH=`tput cols` HEIGHT=`tput lines`
Disable nepomuk in KDE4
1. First you have to stop it:
qdbus org.kde.NepomukServer /nepomukserver quit
2. Then disable nepomuk autostart:
sudo mv /usr/share/autostart/nepomukserver.desktop /usr/share/autostart/nepomukserver.desktop.piece-of-crap
3. Remove nepomuk database:
rm -rf .kde/share/apps/nepomuk