What you're being told is that the bootloader for the OS on the laptop can't be found which tends to mean either some recent Windows security update clobbered a bit of malware and resulted in something of a scorched earth situation or the HDD is in the early stages of total failure.
The first thing to try is simply reloading the OS. If that works, it's a pain to reinstall everything, but it's more of a pain to not have a working computer, is it not? If that doesn't work, the HDD is likely a goner and needs to be replaced.
Hi no os is loading on my laptop can you help please
here is the info i got when i used boot-repair-disk but it did not make any changes. what should i do.
Boot Info Script e7fc706 + Boot-Repair extra info [Boot-Info 31Jan2013]
============================= Boot Info Summary: ===============================
=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
in partition 94 for .
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: According to the info in the boot sector, sda5 starts
at sector 40001538. But according to the info from
fdisk, sda5 starts at sector 235081728.
Operating System:
Boot files:
sdb: ___________________________________________________________________________
File system: vfat
Boot sector type: -
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /EFI/BOOT/grubx64.efi
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 718,847 716,800 7 NTFS / exFAT / HPFS
/dev/sda2 195,080,190 976,773,165 781,692,976 5 Extended
/dev/sda5 235,081,728 976,773,119 741,691,392 7 NTFS / exFAT / HPFS
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 98261F20261EFF46 ntfs System Reserved
/dev/sda5 7AC464CBC4648B69 ntfs
/dev/sdb 0012-D687 vfat USB DISK
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdb /cdrom vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
=========================== sdb/boot/grub/grub.cfg: ============================
--------------------------------------------------------------------------------
if loadfont /boot/grub/font.pf2 ; then
set gfxmode=auto
insmod efi_gop
insmod efi_uga
insmod gfxterm
terminal_output gfxterm
fi
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
menuentry "Boot-Repair-Disk session" {
set gfxpayload=keep
linux /casper/vmlinuz file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
initrd /casper/initrd.lz
}
--------------------------------------------------------------------------------
==================== sdb: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
=============================== StdErr Messages: ===============================
File descriptor 8 (/proc/2570/mounts) leaked on lvscan invocation. Parent PID 8232: bash
No volume groups found
ADDITIONAL INFORMATION :
=================== log of boot-repair 2014-07-13__09h40 ===================
boot-repair version : 3.198~ppa16~raring
boot-sav version : 3.198~ppa16~raring
glade2script version : 3.2.2~ppa45~raring
boot-sav-extra version : 3.198~ppa16~raring
File descriptor 8 (/proc/2570/mounts) leaked on lvs invocation. Parent PID 4149: /bin/sh
No volume groups found
boot-repair is executed in live-session (Boot-Repair-Disk 64bit 24avr2013, raring, Ubuntu, x86_64)
ls: cannot access /home/usr/.config: No such file or directory
CPU op-mode(s): 32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
=================== os-prober:
=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/sda1: LABEL="System Reserved" UUID="98261F20261EFF46" TYPE="ntfs"
/dev/sda5: UUID="7AC464CBC4648B69" TYPE="ntfs"
/dev/sdb: LABEL="USB DISK" UUID="0012-D687" TYPE="vfat"
Warning: extended partition does not start at a cylinder boundary.
DOS and Linux will interpret the contents differently.
=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)
=================== PARTITIONS & DISKS:
sda1 : sda, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, not-far, /mnt/boot-sav/sda1.
sda5 : sda, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, /mnt/boot-sav/sda5.
sda : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, no-os, 2048 sectors * 512 bytes
=================== parted -l:
Model: ATA WDC WD5000LPVT-2 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 368MB 367MB primary ntfs boot
2 99.9GB 500GB 400GB extended
5 120GB 500GB 380GB logical ntfs
Model: General USB Flash Disk (scsi)
Disk /dev/sdb: 2004MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
=================== parted -lm:
BYT;
/dev/sda:500GB:scsi:512:4096:msdos:ATA WDC WD5000LPVT-2;
1:1049kB:368MB:367MB:ntfs::boot;
2:99.9GB:500GB:400GB:::;
5:120GB:500GB:380GB:ntfs::;
BYT;
/dev/sdb:2004MB:scsi:512:512:msdos:General USB Flash Disk;
=================== mount:
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/dev/sdb on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /sys/firmware/efi/efivars type efivarfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
gvfsd-fuse on /run/user/lubuntu/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=lubuntu)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)
=================== ls:
/sys/block/sda (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sda1 sda2 sda5 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered): alarm ashmem autofs binder block bsg btrfs-control bus cdrom cdrw char console core cpu cpu_dma_latency disk dri dvd dvdrw ecryptfs fb0 fd full fuse hpet input kmsg log mapper mcelog mei mem net network_latency network_throughput null oldmem port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda5 sdb sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout uinput urandom v4l vga_arbiter vhost-net video0 zero
ls /dev/mapper: control
=================== hexdump -n512 -C /dev/sda1
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 08 00 00 |........?.......|
00000020 00 00 00 00 80 00 80 00 ff ef 0a 00 00 00 00 00 |................|
00000030 aa 74 00 00 00 00 00 00 02 00 00 00 00 00 00 00 |.t..............|
00000040 f6 00 00 00 01 00 00 00 46 ff 1e 26 20 1f 26 98 |........F..& .&.|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|
00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 01 90 90 66 60 1e |.............f`.|
00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|
00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|
00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|
00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|
00000160 0e 16 00 75 bc 07 1f 66 61 c3 a1 f6 01 e8 09 00 |...u...fa.......|
00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|
00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|
00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|
000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|
000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|
000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|
000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|
00000200
=================== hexdump -n512 -C /dev/sda5
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 02 60 62 02 |........?....`b.|
00000020 00 00 00 00 80 00 80 00 ff 4f 35 2c 00 00 00 00 |.........O5,....|
00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
00000040 f6 00 00 00 01 00 00 00 69 8b 64 c4 cb 64 c4 7a |........i.d..d.z|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|
00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 01 90 90 66 60 1e |.............f`.|
00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|
00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|
00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|
00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|
00000160 0e 16 00 75 bc 07 1f 66 61 c3 a1 f6 01 e8 09 00 |...u...fa.......|
00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|
00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|
00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|
000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|
000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|
000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|
000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|
00000200
=================== df -Th:
Filesystem Type Size Used Avail Use% Mounted on
/cow overlayfs 1.9G 20M 1.9G 2% /
udev devtmpfs 1.9G 12K 1.9G 1% /dev
tmpfs tmpfs 375M 796K 375M 1% /run
/dev/sdb vfat 1.9G 508M 1.4G 27% /cdrom
/dev/loop0 squashfs 435M 435M 0 100% /rofs
none tmpfs 4.0K 0 4.0K 0% /sys/fs/cgroup
tmpfs tmpfs 1.9G 8.0K 1.9G 1% /tmp
none tmpfs 5.0M 0 5.0M 0% /run/lock
none tmpfs 1.9G 0 1.9G 0% /run/shm
none tmpfs 100M 12K 100M 1% /run/user
/dev/sda1 fuseblk 350M 26M 325M 8% /mnt/boot-sav/sda1
/dev/sda5 fuseblk 354G 133M 354G 1% /mnt/boot-sav/sda5
=================== fdisk -l:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 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
Disk identifier: 0xeb0dac0f
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 718847 358400 7 HPFS/NTFS/exFAT
/dev/sda2 195080190 976773165 390846488 5 Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5 235081728 976773119 370845696 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 2003 MB, 2003828736 bytes
62 heads, 62 sectors/track, 1018 cylinders, total 3913728 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
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
No OS has been found on this computer.
=================== Recommended repair
Recommended-Repair
This setting will not act on the MBR.
No change has been performed on your computer.
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