i have installed ubuntu few days ago. after that i have instlled cent os in another partition.now i want to delete cent os but at present my default grub is loaded in centos,s boot partition. how to fix mbr with ubuntu grub as my default boot loader
View 6 RepliesI have Ubuntu 10.10 and Windows7 installed as dual-boot on my PC. When the machine starts up, Ubuntu is first in the list of boot options. After 10 seconds GRUB automatically boots that partition. I want to make the partition for Windows7 the default. How can I do that? I know some Unix, e.g. how to cd, gedit, etc..
View 2 Replies View Relatedhow much disk space a non manual dual boot uses? I've always been guided by a person knowing much about linux when doing my dual boot (and been guided to do the partitions manualy), but this person is not there for the moment and I need to do a dual boot on my son's computer. Since he'll need his Windows computer mainly for games I wouldn't want Ubuntu to take 2/3 of his disk space (which is about 250 Gb I think, let's say 50 Gb would be perfect for the Ubuntu)
And I'm not sure how I could change this later, cause in my own computer I cannot find how to resize (I cannot unmount neither resize the partitions I have) I don't mean I need to do this on my computer but I mean I wouldn't want to try out anything if I'm not sure it be could restored in 1,2,3. And partitions is such a thing. If I remember correctly I've done dual boot by default (i mean without doing the partitions manualy) and it does about 50/50 ?
I am trying to install a box here where my /storage partition is about 2.5T.I had setup the partitioning with suse, while testing, and all worked well.Now when trying to install CentOs 5.5 it gives me an error, that my boot partition is on a gpt partition and this machine cannot boot that.Also I don't see the option to create XFS partitions from the installer.Can 5.5 support GPT @ install time?
View 1 Replies View RelatedWhat is the default partition setup that the ubuntu installer uses? Ie which directories get their own partitions (If I remember correctly by default it doesn't just throw everything onto one partition, assuming you're installing onto a fresh hard drive).
View 4 Replies View Relatedusing onboard windows disk management i have made 75gb unallocated to add to the aforementioned ntfs data partition. but, after resizing extended partition, will i need to fix grub even though i will be adding the unallocated space to a storage partition and not the ubuntu boot partition?
View 4 Replies View RelatedI tried to do my parents a favor by installing Ubuntu 9.10 alongside WinXP on their PC -- same configuration I have on my desktop at home. The install went fine, but since I made a poor buying decision on purchasing a MSI motherboard in the past, Ubuntu immediately crashes after boot (other MSI board users having the same issue, no help from MSI).
The computer tries to boot Ubuntu by default unless something else is selected from the boot menu. How do I change the boot preference from default (choice 0) to WinXP? I tried manually changing this (editing the grub.cfg file), but the file said not to edit, that it's generated by something else...How do I have WinXP load by default instead of the broken Ubuntu?
i was just wondering if there was any way to make it only boot ubuntu from pressing a button at startup like f11 or something instead of coming up with a menu asking me to choose which operating system to boot.
View 2 Replies View RelatedHave been running ubuntu for sometime now and love its functionality...However since a recent update have the following issues..When I power on the laptop I get the toshiba logo followed by grub loading with the message ' invalid enviroment block" "unable to load default boot entries". When I then try to run the laptop off a LiveCd, the ubuntu splash screen appears with the loading process bar (horizontal line) displayed..however it then appears to display a black screen with no further activity..Now all of this is via an external monitor as my laptop screen shows no activity right from the very start with just a blank screen....so am really stuck here wondering if its a harware/software issue or a combination of both...
View 1 Replies View RelatedMy comp came with Vista and then I installed Ubuntu, so it's dual boot. When I start up the computer, it eventually opens a screen with the options to boot Ubuntu, Vista and 3 other partitions. Ubuntu is at the top, Vista at the bottom, and it gives you five seconds to pick an OS or it automatically starts Ubuntu. This is very annoying because I almost always need Vista and I have a habit of pressing power and walking away and letting the computer load. Is there a way to have Vista be the default selection?
View 1 Replies View Relatedis it possible to use a Windows-based recovery partition on a dual-boot computer to overwrite the Ubuntu partition and remove the GRUB loader? For instance, if you booted up your computer, accessed the hidden recovery partition and used it to reset the computer to it's factory default settings, would that effectively remove the Ubuntu partition and the GRUB loader? Would a completely new installation of Windows overwrite/uninstall Ubuntu and GRUB automatically?
View 4 Replies View RelatedWhen I installed Ubuntu on my system (a year or so ago) I forgot to add a BIOS Boot Partition. This is something of a problem considering that the partition type for my 2TB drive is GPT. Hence, whenever grub is updated I get a warning:
Code:
/usr/sbin/grub-setup: warn: This GPT partition label has no BIOS Boot Partition; embedding won't be possible!.
/usr/sbin/grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and its use is discouraged..
Installation finished. No error reported.
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If so, what is the rough sequence of commands to create the partition (without disturbing what is already there) and then setting it as a BIOS boot partition.
Recently I reinstall Grub, but I have chosen on ntfs (windows 7 partition E: drive). After this I chosen /dev/sda which is correct boot partition.
Now Fedora 10 and Win 7 booth are working properly.
How can I get back my E: drive safely?
In Fedora 10 E: is not available, where as in Win7 it is available but asking for Format.
how to get back my E: partition which was chosen wrongly as boot partition.
Everything is installed and setup on my system, but when I setup my partitions I chose my Windows partition to be bootable. Can I just use cfdisk to toggle the bootable flag so my linux partition is bootable and rewrite the partition table?
View 2 Replies View RelatedI having a problem getting my grub loader to see one of my hard drives. I added a drive, and my grub loader lost track of where everything was. I couldn't get my old linux (Red Hat 9) so I installed SuSe on my new hard drive. But I need my be able to boot from my old hard drive because it has apps that only run on the earlier version. From /proc/partitions the old hard drive is sdd
major minor #blocks name
8 0 976762584 sda
8 1 2104483 sda1
8 2 20972857 sda2
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when I tried to install Fedora on my pc, I got this error message " Defined Root partition not created a / boot/efi partition. I am trying to install it on a seperate hd. My main one has windows xp pro, but I do not want to interfer with that at all?.
View 14 Replies View RelatedHow many default partition would be created, when Linux OS to be installed?
View 14 Replies View RelatedI want to install more than 3 linux distributions on single disk - my test machine.Is it possible to create boot partition on logical partition whitch resides in extended partition (and boot successfuly of course)?
My boot loader lives elswere (primary partition or MBR).
As far as I know hard drives are faster at the beginning of the disk. If this is true, why does Ubuntu put the swap partition to the back of the disk by default?
View 1 Replies View RelatedI use Fedora 12 AMD64 and I partition my HDD with Default partitioning what happen when temp partition is full by files ?Can this happen ? for example my temp partition full by files and my system can not use temp partition .!can I say my Fedora clear temp after each reboot .?
View 5 Replies View RelatedWhen my external USB-HDD with NTFS auto-mounts, the default permissions are set to drwx------ 1 userid users. So only I have read-write but all others have no permissions at all. This is annoying because I have pictures on this drive that I share via an apache web server running as wwwrun. So I wonder how I can change the default permissions to something like rwxr--r-- so that apache can access the pictures?
View 3 Replies View RelatedWhen I installed opensuse 11.2 64-bit (KDE) the installer set the root partition to 20GB by default. That seemed unnecessarily large, so I reduced it to 16GB. I then completed the install (basically a default KDE install minus games & educational stuff) and still had more than 8GB free. I'm aware that these days hard drive storage space is quite cheap, but it's not so cheap for me as I have an SSD. Would it not be reasonable to reduce the default root partition size to 12GB, or perhaps vary it according to the software package load selected?
View 3 Replies View RelatedI'm dual booting with Win Xp at the moment and have been google-ing and tinkering about with my distro and i'm learning new stuff everyday but I have a question about something that's been bothering me. I think i've figured out that the / partition is similar to the C: Drive in windows which contains program files n stuff am i right? and the home partition which contains users and their files is an offshoot of the root?
So if this is the case, i was in the expert partitioner in YAST to see how the the drive was partitioned and was wondering if the / partition was too big and if i could decrease the size and add it to the /home?. My sys specs are 512mb RAM Dell Dimension 3000 with an 80GB HDD 2.8Ghz Intel Celeron. I also have a 80Gb and 160Gb External laptop drives mainly for my movies n music n stuff. Also is the Swap partition a good size for the spec of computer i have?
Here's the HDD Breakdown:
/dev/sda 74.51GB
/dev/sda1 29.52 GB NTFS /windows/c
/dev/sda2 44.99GB Extended
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Whenever I plug an external harddrive to a CentOS system,all partitions mounted will have noexec that makes my binaries or script files not executable.
Quote:
[root@centos52-64-dell ~]# mount
/dev/sda3 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
[code]....
I have to remount it using, e.g.,
mount -o remount,exec /dev/sdb1
But I am sick and tired of doing it everyday. What I can I do ?I don't want to use /etc/fstab to solve this problem becauseit will cause booting problem (curable though) when the hard drive is not around.
I'm running 9.10 off of a 4 GiB CF card. I keep running into space issues with updates, so I purchased an 8 GiB replacement card. I've cloned the 4 GiB card to a .IMG file using DD.I've then copied the 4 GiB image back to the 8 GiB card using the Ubuntu startup disk creator program. Once done, I'm able to properly boot off of the new 8 GiB clone.Unfortunately, the clone ends up with 3.67 GiB of unallocated space at the end *see attached). I tried deleting the "extended" partition that the swap is located at after booting from a Live CD and the system was unable to boot after this. I was thinking that I would delete the swap entirely and create a swap file after I merged the existing partitions, but I was unable to do this.
best way to do this (e.g. get one large 8 GiB partition with my old image on it)? I still have the original untouched 4 GiB card and also have an external CF drive if I need to redo the cloning. I've also used Clonezilla before, so perhaps there's a way to do this that allow me to grow the image as it's being cloned.
I am building a 10.04.1LTS server. I am putting the /root filesystem into a Software RAID1 partition. I want to keeo my /boot partition outside of RAID.Is there a way to have a boot partition on both sda and sdb so if one drive fails the second boot partition will work away - or should this be kept in with RAID also.
View 6 Replies View RelatedMy laptop can't boot from cdrom becouse it is broken and it can't boot from USB becouse it has never been able. Ubuntu 8.10 now run in my laptop withgrub 1.I've just try the following trick.1) I put grub4dos in /boot2) I put iso image in /boot3) I add the follwing entrt in source.list
Code:
# =========== GRUB4GOS ===================================
title == Use grub4dos for the following entries: ==
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if having a boot partition is recommended for dual boot installation of Ubuntu 10.04 and Windows 7 and why?
View 1 Replies View RelatedGNU GRUB 0.97
Ubuntu 8.04.4
2.6.24-26
Added an SSD (dev/sdc) and decided to move some less often changed directories there. Started with /usr and /boot, leaving / on a primary in the first drive, for now. All started ok, and my changed fstab mounted the right ones, and the system works.
However, grub is actually using the original /boot on / on sda1. I cannot see any way to change this. (Which makes it sorta hard to update the kernel
From grub:
Okay, since it has two choices, I tried to tell it which one to use. But, grub> root (hd2,5) does nothing.
Disk /dev/sda:
what I seem to recall, grub doesn't care about the boot flag on the disk. Nor does it care about primary vs. logical (except GNU doc says "makeactive" only works on a primary?).
The GNU doc also indicates that it looks for a directory /boot on the partition, so if you're mounting a partition as /boot, it also needs to contain a /boot directory under it. Tried that, but no change.
Is my problem the logical partition? Does that prevent "grub> root" from changing it? I'm afraid to wipe out the old /boot and find that I can't start up.
After installing karmic with Grub2 I am unable to boot into Archlinux partition. Grub2 has removed the last line of the Archlinux boot stanza! It used to read:-
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Following the Grub2 tutorials I have tried editing /etc/grub.d/40_custom as follows:-
[Code]....
But no luck. Only way into Archlinux is to get into the edit shell and manually add the missing line and remove other stuff not needed. I have spent hours trying to resolve this issue and I am fairly p----d off