Trio- booting Windows 8.1 and Ubuntu?

[Biro_Denes]

Hi Everyone,

I try to do a dual boot (actually a trio (win7 - win8.1 - ubuntu) on a lenovo z500.
Ubuntu boots with grub but the two windows can't (drivemap can't found).
It's MBR partition since windows couldn't install on gpt style partition
Please help me find a solution - maybe it's start all over or forget dual boot or forget windows 8.1.

here are my lists:
root@dns-Lenovo-IdeaPad-Z500:~# sudo parted -l
Model: ATA ST1000LM024 HN-M (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos

Number Start End Size Type File system Flags
1 1049kB 200MB 199MB primary fat32 boot
4 201MB 440GB 440GB extended lba
6 201MB 22.7GB 22.5GB logical ext4
7 22.7GB 27.5GB 4799MB logical linux-swap(v1)
8 27.5GB 215GB 188GB logical ext4
5 215GB 440GB 225GB logical ntfs
2 440GB 661GB 220GB primary ntfs
3 661GB 1000GB 340GB primary ntfs


Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: /dev/sr0: unrecognised disk label

root@dns-Lenovo-IdeaPad-Z500:~# sudo 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: 0x09806300

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 391167 194560 b W95 FAT32
/dev/sda2 860152230 1290228344 215038057+ 7 HPFS/NTFS/exFAT
Partition 2 does not start on physical sector boundary.
/dev/sda3 1290228345 1953520064 331645860 7 HPFS/NTFS/exFAT
Partition 3 does not start on physical sector boundary.
/dev/sda4 393214 860151807 429879297 f W95 Ext'd (LBA)
Partition 4 does not start on physical sector boundary.
/dev/sda5 419926016 860151807 220112896 7 HPFS/NTFS/exFAT
/dev/sda6 393216 44298239 21952512 83 Linux
/dev/sda7 44300288 53673983 4686848 82 Linux swap / Solaris
/dev/sda8 53676032 419923967 183123968 83 Linux

Partition table entries are not in disk order

[fantab]

Hi Biro_Denes (http://ubuntuforums.org/member.php?u=1900564)

Please start your own thread. Its not good etiquette to hijack someone else's thread.
Use Boot-Repair (https://help.ubuntu.com/community/Boot-Repair) Utility to create a Bootinfo Summary and post the link it creates in your new thread.

[Iowan]

Split to new thread

[oldfred]

We need details. Windows always installs all boot files in one active (boot flag) partition. So grub menu will only show one Windows to boot and from Windows you can choose other installs.
But you are showing a FAT32 partition with boot flag? Usually in BIOS/MBR that flag is on a 100MB (hidden) boot partition for either Windows 7 or Windows 8.

Post the link to the Create BootInfo report. Is part of Boot-Repair:
https://help.ubuntu.com/community/Boot-Info (sehttps://help.ubuntu.com/community/Boot-Info)

While discussing Vista, still applies to all BIOS/MBR Windows installs.

Pictures here worth 1000+ words
http://www.multibooters.co.uk/multiboot.html