Samsung Series 5 Ultra 530U3C-A02PT

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Samsung-NP530U3C-A02PT front-view.jpg

This is an article about running Gentoo on a Samsung Series 5 Ultra 530U3C-A02PT.

Preamble / Special Requirements

The current setup was designed for a working laptop with a focus on performance and security. It features:

  • Optimizations for a Solid State Disk (SSD)
  • Full disk encryption This requirement was dropped due to a lack of performance and increased complexity. May be enabled later by using Full Disk Encryption (dm-crypt/luks) or encrypted home.
Note
The original 500GB HDD was replaced by a 120GB SSD so some options (filesystem, /var/tmp location, etc.) were taken to reflect this change.

Hardware

Laptop Specifications

Hardware Summary and Support Status
Type Device Model Support Driver
Processor Processor Intel Core i5-3317U CPU @ 1.70GHz Full acpi-cpufreq
Power Management ACPI Full i2c-i801
PCI Express Bus 7 Series/C210 Series Chipset Family SMBus Controller Full pcieport
Storage Hard Disk 7 Series Chipset Family 6-port SATA Controller [AHCI mode] Full ahci
Video Chipset Discrete GPU 3rd Gen Core processor Graphics Controller Full i915
Input Keyboard - Full evdev
Touchpad - Partial synaptics
Network Gigabit Ethernet RTL8111/8168B PCI Express Gigabit Ethernet controller Full r8169
802.11n Wifi Centrino Advanced-N 6235 Full iwlwifi
Sound HD Audio 7 Series/C210 Series Chipset Family High Definition Audio Controller Full snd_hda_intel
Peripheral USB 3.0 7 Series/C210 Series Chipset Family USB xHCI Host Controller Full xhci
USB 2.0 7 Series/C210 Series Chipset Family USB Enhanced Host Controller Full ehci_hcd
Webcam WebCam SC-13HDL12131N Full uvcvideo
Brightness Sensor - ?
Info LEDs - ?

SSD Specifications

The SSD is a 120GB Intel® Solid-State Drive 330 Series.

  • Capacity: 120 GB
  • Components:
    • Intel® 25nm NAND Flash Memory
    • Multi-Level Cell (MLC)
  • Form Factor: 2.5-inch
  • Thickness: 9.5 mm
  • Weight: Up to 80 grams
  • SATA 6Gb/s Bandwidth Performance (Iometer Queue Depth 32)
    • Sustained Sequential Read: 500 MB/s
    • Sustained Sequential Write: 450 MB/
  • Read and Write IOPS1(Iometer Queue Depth 32)
    • Random 4 KB Reads: 42,000 IOPS
    • Random 4 KB Writes: 52,000 IOPS
  • Compatibility
    • Intel® SSD Toolbox with Intel® SSD Optimizer
    • Intel® Data Migration Software
    • Intel® Rapid Storage Technology
    • Intel® 6 Series Express Chipsets (with SATA 6Gb/s)
    • SATA Revision 3.0
    • ACS-2 (ATA/ATAPI Command Set 2)
    • Limited SMART ATA feature set
    • Native Command Queuing (NCQ) command set
    • Data Set Management Command Trim attribute
  • Power Management
    • 5 V SATA Supply Rail— SATA Link Power Management (LPM)
  • Power
    • Active (MobileMark* 2007 Workload): 850 mW (TYP)
    • Idle: 600 mW (TYP)
  • Temperature
    • Operating: 0o C to 70o C
    • Non-Operating: -55o C to 95o C

cpuinfo

root #cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 58
model name      : Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz
stepping        : 9
microcode       : 0x12
cpu MHz         : 1701.000
cache size      : 3072 KB
physical id     : 0
siblings        : 4
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips        : 3393.62
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

Note
I've omitted remaining 3 processor entries for brevity.

lspci

root #lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.3 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 [8086:1e16] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation HM76 Express Chipset LPC Controller [8086:1e59] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller [8086:1e22] (rev 04)
01:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6235 [8086:088e] (rev 24)
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)

lsusb

root #lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 003: ID 15ca:00c3 Textech International Ltd. Mini Optical Mouse
Bus 003 Device 002: ID 152d:2329 JMicron Technology Corp. / JMicron USA Technology Corp. JM20329 SATA Bridge
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 2232:1035  
Bus 002 Device 003: ID 8087:07da Intel Corp

Installing Gentoo

Booting the CD USB

This laptop doesn't include a CDROM drive so you must either install a LiveCD into a USB thumb drive (LiveUSB) or borrow an external CDROM drive. If you opt to use a USB stick SystemRescueCD has a guide about creating a LiveUSB .

Now plug your LiveUSB, change BIOS boot order by pressing F2 and follow the instructions in the Gentoo Linux AMD64 Handbook. Come back to this guide when configuring the kernel or adjusting make.conf.

Partitioning

Some remarks before launching GParted:

  • I've replaced the original Hitachi 500GB HDD with a 120GB SSD.
  • This laptop is bundled with an internal 24GB SanDisk SSD ExpressCache. ExpressCache is a software layer that caches HDD reads/writes with a small SSD boosting the OS (Windows 7) performance.
  • I'll be using the HDD connected via USB when emerging packages because that's where /var/tmp/portage and /usr/portage/distfiles will reside.

Partition Alignment for SSD

You may already notice all the fuss around [how important is to properly align SSD partitions. To achieve this the simply answer is: use a tool like GParted and select MiB alignment to start and end on precise mebibyte (1,048,576 byte) boundaries. Yan Li's Easy way to align Linux partitions for SSD and myths debunked corroborates the GParted statement.

Partitioning Scheme

Using the setup above we now have the following disk identifiers.

  • sda - Intel 120GB SSD
  • sdb - SanDisk 24GB SSD (ExpressCache)
  • sdc - Hitachi 500GB HDD
Disk Partition Size Starts at Description Mount point
sda sda1 128 Mib 1 MiB Boot partition /boot
sda2 ? GiB ? MiB Linux root partition /
sda3 40.00 GiB ? MiB Windows 7 (original install) /mnt/windows
sdb sdb1 ? GiB ? GiB Used by Diskeeper's ExpressCache
sdb2 ? GiB ? MiB Used by Intel Rapid Start Technology to allow Win7 to save its state
sdb3 6.1 GiB ? GiB Linux swap. I've used the same size as RAM (plus 100MiB) to allow hibernation.

Filesystems and fstab

FILE /etc/fstabStatic information about the filesystems
# <fs>                  <mountpoint>    <type>          <opts>                                  <dump/pass>
/dev/sda1               /boot           ext4            noauto,noatime,nodiratime,discard       1 2
/dev/sda2               /               ext4            noatime,nodiratime,discard              0 1
/dev/sdb3               none            swap            sw                                      0 0
/dev/sdc3               /mnt/hdd        ext4            defaults,noatime                        0 2
tmpfs                   /tmp            tmpfs           nodev,nosuid,size=1G                    0 0

Kernel configuration

First install kernel sources of your liking. I'm using reliable gentoo-sources.

root #emerge gentoo-sources

make.conf

FILE /etc/portage/make.confCustom settings for Portage
# Please consult /usr/share/portage/config/make.conf.example for a more
# detailed example.
CFLAGS="-march=native -O2 -pipe"
CXXFLAGS="${CFLAGS}"

MAKEOPTS="-j5"

HDDDIR="/mnt/hdd/gentoo"
PORTAGE_TMPDIR="${HDDDIR}/var/tmp"
PORTDIR="${HDDDIR}/usr/portage"
DISTDIR="${HDDDIR}/usr/portage/distfiles"
PKGDIR="${HDDDIR}/usr/portage/packages"

INPUT_DEVICES="evdev synaptics keyboard mouse"
VIDEO_CARDS="i915 intel vesa fbdev"
ALSA_CARDS="hda-intel"

USE="aacplus apache2 bash-completion colordiff cryptsetup curl eselect faac
     faad fat fbsplash ffmpeg gd git google google-gadgets googledrive gpg
     imagemagick imlib inifile intl iproute2 iptables kdm lastfm lastfmradio
     latex libv4l libv4l2 lm_sensors logrotate lzma lzo matroska mediaplayer
     mmx mplayer mppe-mppc ntfs okular openrc openssl openvpn pdo phar pixmaps
     pm-utils ppp pygments sha512 soap sockets sqlite sqlite3 sse sse2
     subversion theora threads unzip v4l vhosts vim vim-syntax vlc xls
     xmlreader xmlrpc xmlwriter xz zip"
LINGUAS="pt"

GENTOO_MIRRORS="http://cesium.di.uminho.pt/pub/gentoo/ http://darkstar.ist.utl.pt/gentoo/ http://mirror.ovh.net/gentoo-distfiles/"
SYNC="rsync://rsync.pt.gentoo.org/gentoo-portage"