(solved) Unable to boot after fresh install on ASUS P550C Laptop

[bad_aptitude]

I installed siduction 14.01 64 bit KDE on an ASUS P550C Laptop. The laptop had Windows 64 Pro pre-installed. I selected mbr as the place to install grub as suggested by the installer.
The laptop will not boot from the hard drive. I get the message "Reboot and select the proper boot device or Insert boot media and press any key"
More details: root is on sda4 and home is on sda6. When I use the siduction live version I can see the installed files on sda4 and sda6 as expected.
Please advise how I can fix my mbr (assuming that is where the problem lies)
Thanks
bad_aptitude

[der_bud]

If that laptop has current Windows preinstalled and some recent harddisk, are you sure it has classic mbr design? If it fiddles with UEFI and GPT and such, I suppose there is advice needed from more knowledgeable persons here. For the time being, please give more system infos (via live media), at least from 'inxi -v3' and 'fdisk -l' (or 'gdisk -l' if GPT).

[bad_aptitude]

gdisk -l gives the following error

Problem opening -l for reading! Error is 2.
The specified file does not exist!

Here is the result of inxi -v3, and fdisk -l and gdisk -l

Code Select Expand

System:    Host: siduction Kernel: 3.17-4.towo-siduction-amd64 x86_64 (64 bit gcc: 4.9.2)
           Desktop: N/A
           Distro: siduction 14.1.0 Indian Summer - kde - (201411230337)
Machine:   Mobo: ASUSTeK model: X550CA v: 1.0 serial: BSN12345678901234567
           Bios: American Megatrends v: X550CA.218 date: 02/24/2014
CPU:       Dual core Intel Core i5-3337U (-HT-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 7187
           clock speeds: max: 2700 MHz 1: 936 MHz 2: 1105 MHz 3: 802 MHz
           4: 802 MHz
Graphics:  Card: Intel 3rd Gen Core processor Graphics Controller
           bus-ID: 00:02.0
           Display Server: X.org 1.16.1.901 drivers: intel (unloaded: fbdev,vesa)
          tty size: 80x38 Advanced Data: N/A for root
Network:   Card-1: MEDIATEK MT7630e 802.11bgn Wireless Network Adapter
           bus-ID: 02:00.0
           IF: N/A state: N/A mac: N/A
           Card-2: Realtek RTL8111/8168/8411 PCI Express Giabit Ethernet Controller
           driver: r8169 v: 2.3LK-NAPI port: e000 bus-ID: 03:00.2
           IF: eth0 state: down mac: 10:c3:7b:19:d4:f3
Drives:    HDD Total Size: NA (-) ID-1: model: WDC_WD5000LPVX
Info:      Processes: 187 Uptime: 6 min Memory: 606.3/3845.3MB
           Init: systemd runlevel: 5 Gcc sys: 4.9.2
           Client: Shell (bash 4.3.301) inxi: 2.2.16

root@siduction:/home/siducer# fdisk -l

Disk /dev/sda: 465.8 GiB, D500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 8CD719BE-E7D4-441D-BC84-05D3F417A14D

Device         Start       End   Sectors   Size Type
/dev/sda1       2048    206847    204800   100M EFI System
/dev/sda2     206848    468991    262144   128M Microsoft reserved
/dev/sda3     468992 166127615 165658624    79G Microsoft basic data
/dev/sda4  166127616 234366975  68239360  32.6G Microsoft basic data
/dev/sda5  924344320 976773119  52428800    25G Windows recovery environment
/dev/sda6  234366976 903518207 669151232 319.1G Linux filesystem
/dev/sda7  903518208 924344319  20826112    10G Linux swap

Partition table entries are not in disk order.
Disk /dev/loop0: 1.1 GiB, 1181417472 bytes, 2307456 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


root@siduction:/home/siducer# gdisk -l

GPT fdisk (gdisk) version 0.8.10

Problem opening -l for reading! Error is 2.
The specified file does not exist!


[absolut]

gdisk -l /dev/sdX

you need to provide the device/harddrive

[bad_aptitude]

The original disk parition had sda1, sda2, sda3, and sda5 for the windows installation. sda4 was for "data".
I resized and formated sda4 to btrfs and asigned it to root. I added sda6 as btrfs as home and sda7 as linux-swap. All were set as primary partitions. Is that the source of the problem?
Here is the results of gdisk -l /dev/sda

Code Select Expand

root@siduction:/home/siducer# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.10

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 976773168 sectors, 465.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 8CD719BE-E7D4-441D-BC84-05D3F417A14D
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2029 sectors (1014.5 KiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048          206847   100.0 MiB   EF00  EFI system partition
   2          206848          468991   128.0 MiB   0C01  Microsoft reserved ...
   3          468992       166127615   79.0 GiB    0700  Basic data partition
   4       166127616       234366975   32.5 GiB    0700  Basic data partition
   5       924344320       976773119   25.0 GiB    2700  Basic data partition
   6       234366976       903518207   319.1 GiB   8300
   7       903518208       924344319   9.9 GiB     8200


[bad_aptitude]

In my initial installation attempt the live cd must have booted in legacy BIOS mode and not UEFI mode.
I discovered there was a way to boot my siduction live cd in uefi mode on my ASUS P550CA laptop. The key was to avoid using the BIOS setup(which doesn't show the uefi version of the cd/dvd drive) and use the boot options screen  which does show the  live cd as uefi bootable. On this Laptop the boot options come up by pushing "ESC" repeatedly immediately after power on.After that I followed GoinEasy9's instructionshttp://forum.siduction.org/index.php?topic=4254.0 (Starting after the point where the live USB stick(or in my case live cd) has booted in UEFI mode)
I now have a successful installation.