how to fix "grub 1.5 error 15"?

Question

I am dual booting windows vista and ubuntu, i have 2 hard drives, vista is installed on one drive and ubuntu on the other. when i boot up the machine it goes through all the normal screens until it gets to the grub loader, then i get "grub 1.5 error 15" HOWEVER if i manually go into the boot menu during startup and tell it to boot to the drive with ubuntu on it, grub comes right up and i can select my OS. how do i fix it so grub comes up automatically without error?

Answer 1

set your ubuntu drive as master and add this to your /boot/grub/grub.cfg



title Windoze

rootnoverify (hd1,0)

map (hd0) (hd1)

map (hd1) (hd0)

makeactive

chainloader +1



(do not add the entry if you can dual boot with ubuntu as master)



if ubuntu boots (which it should - as the above is for your windows to boot via grub) but windows doesn't then you should test your windows drive as the only drive installed to see if it will boot without grub,



what i think you have done is installed ubuntu as master then changed it to slave

Answer 2

Number 1. The source of my information is the grub manual which you can read by opening a terminal and typing "info grub". Do that.



Okay, grub error 15 is missing files. Specifically e2fs_stage1_5. This means it is looking in the wrong place. If windows is on the first hard drive, grub calls it (hd0) (and that's where the boot loader should be. If Ubuntu is on the second hard drive that is (hd1) and you should start grub from the command line and type "root (hd1,0), not hd0,0. You can confirm it by typing, in the grub shell,



grub> find /boot/grub/stage1



It will tell you what the proper location for the grub files should be. Feed that to the root command and it should be able to boot properly.



EDIT:



If it says grub not installed that indicates something serious. Open the terminal and type "sudo apt-get install grub" If you get an error message fine, type "sudo apt-get -f install" notice I didn't mention ANY package in that line. It basically means fix everything. One or the other should fix it but if it says grub not installed then there is a serious problem -- check the grub manual at info grub.



But first do those two other things.

Answer 3

boot from a ubuntu live cd and then open a terminal then type



sudo grub



root (hd0,0)



setup (hd0)



exit



You would replace the zeros with your hd location "example" (hd1,4)

Answer 4

Disk study is refering to the confusingcontinual. fixing it relies upon on some issues. If the confusingcontinual has long previous undesirable you will needless to say ought to alter it. based how techy you're you could dive into the journey your self or take it to a close-by restore save to have it fastened. Your working device could have corrupted. whilst it comes to living house windows XP you could insert your CD's that got here at the same time with your computer and on occasion do a restore whilst introduced on. If this fails you may ought to reinstall the working device completely. lower back this actual relies upon on how pc savy you're/are feeling :). in the adventure that your not soft with reinstallation or taking the gadget aside i might exceptionally propose against it. you may get your self into some serious difficulty. i may well be extra advantageous than prepared to difficult on the concern in case you could incorporate type of the computer, the working device, ect. Are you getting the different blunders messages?