When I shutdown the computer, it restarts
- by Prabu
I am unable to shutdown. Whenever I try to shutdown, it reboots. I am running Ubuntu 12.10.
I have run the boot-repair and this is the result:
Boot Info Script 0.61.full + Boot-Repair extra info [Boot-Info November 20th 2012]
============================= Boot Info Summary: ===============================
=> Grub2 (v2.00) 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 1 for (,msdos1)/boot/grub.
sda1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.10
Boot files: /boot/grub/grub.cfg /etc/fstab
/boot/grub/i386-pc/core.img
sda2: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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 1,936,809,983 1,936,807,936 83 Linux
/dev/sda2 1,936,812,030 1,953,523,711 16,711,682 5 Extended
/dev/sda5 1,936,812,032 1,953,523,711 16,711,680 82 Linux swap / Solaris
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 229a5484-7659-4ce1-98ce-2f05f61a1ffa ext4
/dev/sda5 6c6dca25-ab67-4de4-8602-26fdb6154781 swap
/dev/sr0 iso9660 Ubuntu 12.10 amd64
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sr0 /cdrom iso9660 (ro,noatime)
=========================== sda1/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
set timeout=10
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
linux /boot/vmlinuz-3.5.0-19-generic root=UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa ro quiet splash acpi=force $vt_handoff
initrd /boot/initrd.img-3.5.0-19-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
menuentry 'Ubuntu, with Linux 3.5.0-19-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-19-generic-advanced-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
echo 'Loading Linux 3.5.0-19-generic ...'
linux /boot/vmlinuz-3.5.0-19-generic root=UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa ro quiet splash acpi=force $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.5.0-19-generic
}
menuentry 'Ubuntu, with Linux 3.5.0-19-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-19-generic-recovery-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
echo 'Loading Linux 3.5.0-19-generic ...'
linux /boot/vmlinuz-3.5.0-19-generic root=UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.5.0-19-generic
}
menuentry 'Ubuntu, with Linux 3.5.0-17-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-17-generic-advanced-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
echo 'Loading Linux 3.5.0-17-generic ...'
linux /boot/vmlinuz-3.5.0-17-generic root=UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa ro quiet splash acpi=force $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.5.0-17-generic
}
menuentry 'Ubuntu, with Linux 3.5.0-17-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-17-generic-recovery-229a5484-7659-4ce1-98ce-2f05f61a1ffa' {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
echo 'Loading Linux 3.5.0-17-generic ...'
linux /boot/vmlinuz-3.5.0-17-generic root=UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.5.0-17-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 229a5484-7659-4ce1-98ce-2f05f61a1ffa
else
search --no-floppy --fs-uuid --set=root 229a5484-7659-4ce1-98ce-2f05f61a1ffa
fi
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------
=============================== sda1/etc/fstab: ================================
--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=229a5484-7659-4ce1-98ce-2f05f61a1ffa / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=6c6dca25-ab67-4de4-8602-26fdb6154781 none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
200.155235291 = 214.915047424 boot/grub/grub.cfg 1
40.280788422 = 43.251167232 boot/initrd.img-3.5.0-17-generic 1
2.468288422 = 2.650304512 boot/initrd.img-3.5.0-19-generic 1
200.149234772 = 214.908604416 boot/vmlinuz-3.5.0-17-generic 1
1.990135193 = 2.136891392 boot/vmlinuz-3.5.0-19-generic 1
2.468288422 = 2.650304512 initrd.img 1
1.990135193 = 2.136891392 vmlinuz 1
1.990135193 = 2.136891392 vmlinuz.old 1
=============================== StdErr Messages: ===============================
cat: write error: Broken pipe
File descriptor 8 (/proc/6297/mounts) leaked on lvscan invocation. Parent PID 13390: bash
No volume groups found
ADDITIONAL INFORMATION :
=================== log of boot-repair 2012-12-17__01h53 ===================
boot-repair version : 3.197~ppa1~quantal
boot-sav version : 3.197~ppa1~quantal
glade2script version : 3.2.2~ppa45~quantal
boot-sav-extra version : 3.197~ppa1~quantal
boot-repair is executed in live-session (Ubuntu 12.10, quantal, Ubuntu, x86_64)
CPU op-mode(s): 32-bit, 64-bit
file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
=================== os-prober:
/dev/sda1:Ubuntu 12.10 (12.10):Ubuntu:linux
=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/sr0: LABEL="Ubuntu 12.10 amd64" TYPE="iso9660"
/dev/sda1: UUID="229a5484-7659-4ce1-98ce-2f05f61a1ffa" TYPE="ext4"
/dev/sda5: UUID="6c6dca25-ab67-4de4-8602-26fdb6154781" TYPE="swap"
1 disks with OS, 1 OS : 1 Linux, 0 MacOS, 0 Windows, 0 unknown type OS.
Warning: extended partition does not start at a cylinder boundary.
DOS and Linux will interpret the contents differently.
=================== sda1/etc/default/grub :
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
=================== sda1/etc/grub.d/ :
drwxr-xr-x 2 root root 4096 Oct 17 14:59 grub.d
total 72
-rwxr-xr-x 1 root root 7541 Oct 14 17:36 00_header
-rwxr-xr-x 1 root root 5488 Oct 4 09:30 05_debian_theme
-rwxr-xr-x 1 root root 10891 Oct 14 17:36 10_linux
-rwxr-xr-x 1 root root 10258 Oct 14 17:36 20_linux_xen
-rwxr-xr-x 1 root root 1688 Oct 11 14:10 20_memtest86+
-rwxr-xr-x 1 root root 10976 Oct 14 17:36 30_os-prober
-rwxr-xr-x 1 root root 1426 Oct 14 17:36 30_uefi-firmware
-rwxr-xr-x 1 root root 214 Oct 14 17:36 40_custom
-rwxr-xr-x 1 root root 216 Oct 14 17:36 41_custom
-rw-r--r-- 1 root root 483 Oct 14 17:36 README
=================== UEFI/Legacy mode:
This live-session is not in EFI-mode.
SecureBoot maybe enabled.
=================== PARTITIONS & DISKS:
sda1 : sda, not-sepboot, grubenv-ok grub2, grub-pc , update-grub, 64, with-boot, is-os, not--efi--part, fstab-without-boot, fstab-without-efi, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, apt-get, grub-install, with--usr, fstab-without-usr, not-sep-usr, standard, farbios, /mnt/boot-sav/sda1.
sda : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, has-os, 2048 sectors * 512 bytes
=================== parted -l:
Model: ATA ST1000DM003-1CH1 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 992GB 992GB primary ext4 boot
2 992GB 1000GB 8556MB extended
5 992GB 1000GB 8556MB logical linux-swap(v1)
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: Can't have a partition outside the disk!
=================== parted -lm:
BYT;
/dev/sda:1000GB:scsi:512:4096:msdos:ATA ST1000DM003-1CH1;
1:1049kB:992GB:992GB:ext4::boot;
2:992GB:1000GB:8556MB:::;
5:992GB:1000GB:8556MB:linux-swap(v1)::;
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: Can't have a partition outside the 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/sr0 on /cdrom type iso9660 (ro,noatime)
/dev/loop0 on /rofs type squashfs (ro,noatime)
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)
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/ubuntu/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=ubuntu)
/dev/sda1 on /mnt/boot-sav/sda1 type ext4 (rw)
=================== 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/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 fw0 hidraw0 hidraw1 hpet input kmsg kvm 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 sg0 sg1 shm snapshot snd sr0 stderr stdin stdout uinput urandom usb vga_arbiter vhost-net zero
ls /dev/mapper: control
=================== df -Th:
Filesystem Type Size Used Avail Use% Mounted on
/cow overlayfs 3.9G 100M 3.8G 3% /
udev devtmpfs 3.9G 12K 3.9G 1% /dev
tmpfs tmpfs 1.6G 864K 1.6G 1% /run
/dev/sr0 iso9660 763M 763M 0 100% /cdrom
/dev/loop0 squashfs 717M 717M 0 100% /rofs
tmpfs tmpfs 3.9G 32K 3.9G 1% /tmp
none tmpfs 5.0M 4.0K 5.0M 1% /run/lock
none tmpfs 3.9G 176K 3.9G 1% /run/shm
none tmpfs 100M 52K 100M 1% /run/user
/dev/sda1 ext4 910G 26G 838G 3% /mnt/boot-sav/sda1
=================== fdisk -l:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0x000da1e9
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1936809983 968403968 83 Linux
/dev/sda2 1936812030 1953523711 8355841 5 Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5 1936812032 1953523711 8355840 82 Linux swap / Solaris
Partition outside the disk detected.
=================== Recommended repair
Recommended-Repair
This setting will reinstall the grub2 of sda1 into the MBR of sda.
Additional repair will be performed: unhide-bootmenu-10s
Unhide GRUB boot menu in sda1/etc/default/grub
grub-install (GRUB) 2.00-7ubuntu11,grub-install (GRUB) 2.
Reinstall the GRUB of sda1 into the MBR of sda
Installation finished. No error reported.
grub-install /dev/sda: exit code of grub-install /dev/sda:0
chroot /mnt/boot-sav/sda1 update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.5.0-19-generic
Found initrd image: /boot/initrd.img-3.5.0-19-generic
Found linux image: /boot/vmlinuz-3.5.0-17-generic
Found initrd image: /boot/initrd.img-3.5.0-17-generic
Found memtest86+ image: /boot/memtest86+.bin
Unhide GRUB boot menu in sda1/boot/grub/grub.cfg
Boot successfully repaired.
You can now reboot your computer.
