Ubuntu won't boot after installed with windows

[fugue2]

Hi,

I am a newbie in Linux.

I installed ubuntu 13.10 on my laptop alongside Windows 7 (downgraded from Win8). I chose one of the partition of my hard disk for Ubuntu. But after installation and I restart the laptop, it boots into Win7 like before without giving any choices for which OS I want to boot in.

UPDATE: I used Boot Repair's "recommended repair", and now I have the grub page when start up. But now Ubuntu becomes the only choice... I cannot boot Windows anymore.

UPDATE: Then I typed "sudo grub-update" in the terminal, then solved the problem.

I did the same thing on my old laptop and everything works out fine ---- after I start the laptop there will be a page for me to decide whether Ubuntu or Windows to go into.

Could someone please tell me how to fix that problem? Thanks!!

[ubfan1]

You probably have an UEFI machine since it came with W8, so see if you can invoke the efi-boot menu at startup -- Try function keys like F12,... varies by machine, but you are looking for the choice devices/oses to boot. If you just see devices, select the hard disk and see if you get another window of choices for OSes. Select ubuntu and see if it boots. If it does, you can install efibootmgr, and use it to change the default boot to be ubuntu.

[oldfred]

How did you reinstall Windows 7. If from DVD it will install to BIOS mode, convert drive from gpt to MBR, but leave a backup gpt partition table.

Post this.

sudo parted /dev/sda unit s print

[fugue2]

Thanks for all the replies above...

I searched online and used the Boot Repair's recommended repair.... It works... But now Ubuntu is the only choice in the grub and I cannot boot Windows

[fugue2]

The output after sudo parted /dev/sda unit s print
is:


Model: ATA ST500LM012 HN-M5 (scsi)
Disk /dev/sda: 976773168s
Sector size (logical/physical): 512B/4096B
Partition Table: msdos

Number Start End Size Type File system Flags
1 63s 167782859s 167782797s primary ntfs boot
2 167782921s 976771071s 808988151s extended lba
5 167782923s 324102619s 156319697s logical ntfs
6 324104192s 505729023s 181624832s logical ntfs
7 505731072s 625541618s 119810547s logical ntfs
10 625543168s 723181567s 97638400s logical ext4
9 723197952s 731004927s 7806976s logical linux-swap(v1)
8 731013120s 976771071s 245757952s logical ntfs

[oldfred]

You have a BIOS installs of Windows and Ubuntu as you have MBR and Windows only boots from MBR with BIOS.

Post link to BootInfo report from Boot-Repair.

Post the link to the BootInfo report that this creates. Is part of Boot-Repair:
https://help.ubuntu.com/community/Boot-Info

[fugue2]

You have a BIOS installs of Windows and Ubuntu as you have MBR and Windows only boots from MBR with BIOS.

Post link to BootInfo report from Boot-Repair.

Post the link to the BootInfo report that this creates. Is part of Boot-Repair:
https://help.ubuntu.com/community/Boot-Info


Thanks so much again. This is the link generated by Boot Repair:

http://paste.ubuntu.com/6297767/

[oldfred]

Did you leave Windows hibernated? Or did you resize from the installer not from inside Windows?
It may just need chkdks from a Windows repairCD or flash drive.

Boot-Repair says this
The disk contains an unclean file system (0, 0).
The file system wasn't safely closed on Windows. Fixing.

And you cannot fully run chkdsk from Linux.

[fugue2]

Thanks again! I searched online and then used "sudo grub-update". Now win7 shows up in the grub!