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Old 04-03-2007, 01:41 PM   #1
gothicbob
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removing grub


Hey, just wanted to check before i messed anything up. Ive been duel booting openSuse 10.2 with XP (but i havnt actually used Xp since I installed it) so I thought it was about time for me to get rid of Grub, if i just uninstall grub thought Yast in Suse, will it set linux to boot by default or do you have to configure the MBR somehow?

any tips, cheers.
 
Old 04-03-2007, 02:07 PM   #2
benjithegreat98
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You are saying you want it to automatically boot into Suse? You don't want to actually remove grub. You can set grub to boot into Suse. I don't use Suse, but on the command line if you edit the /boot/grub/grub.conf (it might be /boot/grub/menu.lst) and set the default to reflect the entry for Suse (the first OS listed is 0[zero], the next is 1 and 2 and 3 and...). Then set the timeout to be however many seconds you want the menu to appear. I would set it at 1 or 2 as opposed to 0, just to leave the option open of going to XP if you absolutely have to.
 
Old 04-03-2007, 03:59 PM   #3
gothicbob
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no sorry if i wasnt clear, i actually want to get rid of grub so that it loads quicker, im just not sure if i can tell it to boot into suse unless there is a boot loader there?

Setting the timeout to 0, gives it an infinite selection screen i think, ive currently got it on 1s, but it'd be much faster if it didnt have to load grub.
 
Old 04-03-2007, 04:03 PM   #4
Quakeboy02
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GrUB stands for Grand Universal Bootloader. Yes, you can remove grub, but then what will do your bootloading for you? Did you plan to install lilo in its place? Something has to perform that function on your machine. Since you've already got grub working, I'd suggest you leave it alone.
 
Old 04-03-2007, 05:29 PM   #5
gothicbob
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can linux not just load itself, or does it require a bootloader to be installed?

eg if you install linux on a hard drive and only use linux do you have to install lilo or grub for linux to be booted up?
 
Old 04-03-2007, 05:37 PM   #6
Quakeboy02
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Nothing, no not even Windows, can load itself. They all need a bootloader on the boot sector to boot.
 
Old 04-03-2007, 06:31 PM   #7
saikee
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Think you got the wrong end of the stick.

Quakeboy02 has summed it up rather well that nothing can boot without the boot loader.

Grub is the fastest thing on earth. The slow bit you see is Suse loading the Linux kernel. Suse is known to be slow but later versions are faster. If you want something that loads quickly try Slax and any member of this family. This family distros has a smaller footprint and can save/restore the installed image onto the ram directly.

Grub normally disappears instantly when you highlight the booting choice and hit the return key.
 
Old 04-03-2007, 09:01 PM   #8
gothicbob
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I just thought it'd be like windows if i did have a bootloader it'd just load by default. Im pretty sure suse can suspend to ram and to disk so that it loads faster.
 
Old 04-03-2007, 09:19 PM   #9
Emerson
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This is history now, but DOS (io.sys) was loaded without bootloader. Same was true for Linux kernel 2.0, I do not remember about 2.2. Of course it needed to be placed correctly on the HDD, BIOS executes only the code found on the first sector of first HDD.
 
Old 04-03-2007, 09:46 PM   #10
Quakeboy02
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Quote:
I just thought it'd be like windows if i did have a bootloader it'd just load by default. Im pretty sure suse can suspend to ram and to disk so that it loads faster.
Windows has a bootloader. It's not grub, but it's still a bootloader. Grub (lilo, etc, whatever) takes only a very very small amount of time to run. All those messages you see scrolling across the screen that take so long during boot come from Linux, not from grub.
 
Old 04-04-2007, 10:39 AM   #11
gothicbob
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yeah, cool cheers for your help!
 
  


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