Fedora 15, Ubuntu 10.04 and Windows 7 Triboot

[ultimatelinux]

sudo fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf623f623

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 102400 7 HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2 13 4570 36597760 7 HPFS/NTFS
/dev/sda4 4570 19458 119586817 f W95 Ext'd (LBA)
Partition 4 does not end on cylinder boundary.
/dev/sda5 8747 19458 86032384 7 HPFS/NTFS
/dev/sda6 4570 4819 2000896 82 Linux swap / Solaris
/dev/sda7 4819 7184 18999296 83 Linux
/dev/sda8 7184 8746 12547072 83 Linux
I have windows in /dev/sda2, windows 7 created a new partition(primary) for its boot loader configuration. I've installed Ubuntu 10.04 in /dev/sda7 n /dev/sda6 is its swap. /dev/sda5 is logical drive, which I want to use to store data. I formatted /dev/sda8 with ext4 file system, now, I wish to install fedora in it, if I select installed boot loader in first sector of boot partition of fedora and then go to Ubuntu and run update-grub, will Ubuntu's grub detect fedora and will my windows be intact?
thank you.

[yancek]

That's the way it is supposed to work but Ubuntu and Grub are both free software and you have absolutely no warranty so, useat your own risk. I'd backup any important data before doing it and I'd pay close attention to the options with Fedora. I haven't installed the newest version but it usually wants to create a separate boot partition and use LVM and if you want it on sda8, make sure you are paying close attention during the install.

[jayd512]

I installed Fedora 15 a few weeks ago on the same computer that has Ubuntu 10.04 on it. I didn't even deal with installing a bootloader during the process.
Simply rebooted to Ubuntu and ran sudo update-grub, all went well.

[rajeevrnair]

If it helps then you can install a maximum of upto 4 OS on. A single hard disk, because it is possible to have upto 4 primary partitions

[jayd512]

If it helps then you can install a maximum of upto 4 OS on. A single hard disk, because it is possible to have upto 4 primary partitions

Not quite true, there. While you are limited to the number of primary partitions, you can also install linux to an Extended partition and boot successfully. With that in mind, you can have dozens of OS's installed on one drive. I can't locate the link, but I read once that someone managed to install over 100 Linux distros one a single drive.