Garratt
August 27th, 2008, 01:01 PM
hello,
I killed grub the other day when i reformatted, couldn't load either OS, on a dual boot system so i finally fixed that, but before i fixed it i had installed QgrubEditor, I ended up fixing it by, swapping the hdd numbers over in menu.lst(which did not work and prevented grub from loading), Qgrubeditor had removed any other data inside menu.lst so it just read the 2 hdd's, and safemode, ram-test...
I then used Super Grub disk to "live swap" and this fixed things.
so a few minutes ago i un-installed Qgrub, and loaded up Startup manager. This rewrote menu.lst and auto saved the incorrect old values(well actually saved my 80g ubuntu os as (hd1,0) safemode etc(hd1,0) and the 600g vista hdd as (hd1,0).
so i loaded up menu.lst and changed the ubuntu values back to (hd0,0), then restarted the system, luckily i did not need to use the super grub cd, my changes worked.
I had also used a splash which upon restarting said it could not load, when ubuntu booted up i checked menu.lst and it has put it on (1,0) as well.
#A splash image for the menu
splashimage=(hd1,0)/boot/grub/splashimages/hit.xpm.gz
so changed this to (hd0,0) .... this worked i get no error anymore and the image shows, but it's very pixelated like an old atari.
down further on the file it says:
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash vga=795
I have seen many people say to use this option, is this to change the reso?? and if so should i just uncomment the last line? (im on 21/22inch widescreen im not sure lol... and i normally use 1400x900 resolution)
also I'm curious about other options such as:
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd1,0)
would this make sure in future grub would not get confused about exactly where it is? not that I really need this because i now know how to edit the file, but who knows...3 years from now i may completely forget.
also:
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
seem to suggest similar things, i'm not sure what any of these options actually do.
I tried reading through as much as i could in /usr/share/doc/grub but there was not much info on it...
I killed grub the other day when i reformatted, couldn't load either OS, on a dual boot system so i finally fixed that, but before i fixed it i had installed QgrubEditor, I ended up fixing it by, swapping the hdd numbers over in menu.lst(which did not work and prevented grub from loading), Qgrubeditor had removed any other data inside menu.lst so it just read the 2 hdd's, and safemode, ram-test...
I then used Super Grub disk to "live swap" and this fixed things.
so a few minutes ago i un-installed Qgrub, and loaded up Startup manager. This rewrote menu.lst and auto saved the incorrect old values(well actually saved my 80g ubuntu os as (hd1,0) safemode etc(hd1,0) and the 600g vista hdd as (hd1,0).
so i loaded up menu.lst and changed the ubuntu values back to (hd0,0), then restarted the system, luckily i did not need to use the super grub cd, my changes worked.
I had also used a splash which upon restarting said it could not load, when ubuntu booted up i checked menu.lst and it has put it on (1,0) as well.
#A splash image for the menu
splashimage=(hd1,0)/boot/grub/splashimages/hit.xpm.gz
so changed this to (hd0,0) .... this worked i get no error anymore and the image shows, but it's very pixelated like an old atari.
down further on the file it says:
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash vga=795
I have seen many people say to use this option, is this to change the reso?? and if so should i just uncomment the last line? (im on 21/22inch widescreen im not sure lol... and i normally use 1400x900 resolution)
also I'm curious about other options such as:
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd1,0)
would this make sure in future grub would not get confused about exactly where it is? not that I really need this because i now know how to edit the file, but who knows...3 years from now i may completely forget.
also:
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
seem to suggest similar things, i'm not sure what any of these options actually do.
I tried reading through as much as i could in /usr/share/doc/grub but there was not much info on it...