After installation of Mac OS 10.10.3, my MacBook Pro can't boot anymore.

I have MacBook Pro late 2013 with Mavericks 10.10.2. This morning after installation update, my MBP rebooted itself and can't find the installed OS.
MBP late 2013, 2,6 GHz i5 processor with 512 gb flash, OS X 10.10.2. System disk had two partitions.

SOLUTION FOR ME:
I used OS X internet recovery system to install OS X. It seems to be installed correctly and none of my files, apps and settings are missing.
https://support.apple.com/en-us/HT201314

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EtreCheck version: 2.1.8 (121)
Report generated March 24, 2015 at 2:16:55 PM EDT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Pro (13-inch, Late 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,1
    1 2.4 GHz Intel Core i5 CPU: 2-core
    4 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 431
Video Information: ℹ️
    Intel HD Graphics 3000
        Color LCD 1280 x 800
System Software: ℹ️
    OS X 10.10.3 (14D113c) - Time since boot: 0:25:56
Disk Information: ℹ️
    ST9500325ASG disk0 : (500.11 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
        Macintosh HD (disk1) /Volumes/Macintosh HD : 498.88 GB (345.40 GB free)
            Core Storage: disk0s2 499.25 GB Online
    MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. Apple Internal Keyboard / Trackpad
    Western Digital My Book 1140 2 TB
        EFI (disk2s1) <not mounted> : 210 MB
        MBPClone (disk2s2) /Volumes/MBPClone : 249.35 GB (119.30 GB free)
        Recovery HD (disk2s3) <not mounted> [Recovery]: 784 MB
        Clone27iMac (disk2s4) /Volumes/Clone27iMac : 1.08 TB (918.40 GB free)
        Recovery HD (disk2s5) <not mounted> [Recovery]: 650 MB
        MediaorWhatever (disk2s6) / : 665.53 GB (583.65 GB free)
        Recovery HD (disk2s7) <not mounted> [Recovery]: 650 MB
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /System/Library/Extensions
    [not loaded]    com.ricoh.print.kext.USBPrintClass (3.01) [Click for support]
        /Volumes/MBPClone/Applications/DiskWarrior.app
    [not loaded]    com.alsoft.Preview (4.4) [Click for support]
        /Volumes/MBPClone/Library/Sophos Anti-Virus/InterCheck.app
    [not loaded]    com.sophos.kext.sav (8.0.14 - SDK 10.5) [Click for support]
Launch Agents: ℹ️
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [running]    net.culater.SIMBL.Agent.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.bombich.ccc.plist [Click for support]
    [running]    com.bombich.ccchelper.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [loaded]    com.transcend.TSTRIMHandlerHelp.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    WD Quick View    Application (/Library/Application Support/WDSmartware/WDQuickView.app)
Internet Plug-ins: ℹ️
    o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    Flip4Mac WMV Plugin: Version: 2.3.2.6 [Click for support]
    OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
    AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    Silverlight: Version: 4.0.50917.0 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 Outdated! Update
    QuickTime Plugin: Version: 7.7.3
    googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    iPhotoPhotocast: Version: 7.0 - SDK 10.8
    AdobePDFViewer: Version: 10.1.13 [Click for support]
    Scorch: Version: 6.2.0 [Click for support]
    DirectorShockwave: Version: 12.0.7r148 - SDK 10.6 [Click for support]
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    Flip4Mac WMV [Click for support]
    Perian [Click for support]
    WDQuickView [Click for support]
Time Machine: ℹ️
    Mobile backups: OFF
    Auto backup: NO - Auto backup turned off
    Volumes being backed up:
    Destinations:
        MBP Backup [Local]
        Total size: 299.73 GB
        Total number of backups: 20
        Oldest backup: 2013-03-14 16:58:24 +0000
        Last backup: 2014-02-25 16:24:25 +0000
        Size of backup disk: Excellent
            Backup size 299.73 GB > (Disk size 0 B X 3)
Top Processes by CPU: ℹ️
         5%    WindowServer
         3%    mds
         0%    AppleSpell
         0%    fontd
         0%    mds_stores
Top Processes by Memory: ℹ️
    249 MB    mds_stores
    150 MB    Finder
    116 MB    Dock
    116 MB    Spotlight
    73 MB    ocspd
Virtual Memory Information: ℹ️
    801 MB    Free RAM
    1.59 GB    Active RAM
    785 MB    Inactive RAM
    1.09 GB    Wired RAM
    2.01 GB    Page-ins
    446 KB    Page-outs
Diagnostics Information: ℹ️
    Mar 24, 2015, 01:44:49 PM    Self test - passed
    Mar 22, 2015, 10:30:37 PM    /Library/Logs/DiagnosticReports/VideoMemoryTool_2015-03-22-223037_[redacted].cr ash

Drive Partition and Format
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If you are preparing an external or a non-startup drive, then open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
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Okay, so the disk is supposed to show up as disk0s2.
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