Ubuntu Installation :: Overwrite The Whole Disk - Recognize The Existing Partitions?
Jan 8, 2011
I have reinstalled XP and conseqently messed up Grub and lost Ubuntu. I am trying to do a fresh install but the installer insists on trying to overwrite the whole disk. I downloaded the alternate instal ISO as this has got over this problem in the past but this also wanted to overwrite the whole disk. It recognises the Sata Raid array as being nfts (this is my main data disk) but it doesn't recognise the existing partitions on my main disk:
18G windows
18G Old Ubuntu
113G nfts data disk
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Mar 22, 2011
I used Ubuntu before, without problems but since the 10.04 version it won't recognize my partitions. I formated my laptop and partitioned it, installed Windows 7 64bit, which I need for my work, and wanted now to install Ubuntu 10.04/10. I then used GParted to check my Harddisk and it is having troubles to recognize my partitions, too while Windows finds them. GParted is giving me an error message saying my partitions are oversized. I am still in the beginning of my Linux experiences and so I don't know what to do. I have two 250GB harddisks (how Windows recognizes them),
[Code]....
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May 1, 2010
Is there a way to get the 10.04 Live CD to recognize my existing 9.10 installation and perform an upgrade without deleting all my files? I have been blocked out of Ubuntu 9.10 since December when I installed Windows 7 and it overwrote GRUB.
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Mar 8, 2011
I try to write to a file "date > file" but Linux says 'cannot overwrite existing file'. I tried chmod 755 but still cannot write to the file. What should I do?
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Apr 15, 2011
I run a command in a Linux terminal, the result was written to the desied folder. After I modified the command and rerun it. The old files are still there and not overwritten at all. Only it is successfull after I deleted the old files and run the command.
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Aug 1, 2010
I had done a new lucid install to a 1 TB RAID 1 array using the alternate CD a few weeks back. I messed up that system trying to some hardware working that lucid doesn't have drivers for yet, so I gave up on it and reinstalled to a single 80 GB disk that I now want to move over to the RAID array.
I moved all of the existing files on the array to a single folder, then copied all of the folders from the 80 GB disk over to the array with permissions and symlinks (minus the contents of /proc and /sys, which I created empty).
These are the commands I used:
Quote:
p -a -d -R -v -t /media/raid_array /b*
cp -a -d -R -v -t /media/raid_array /d*
cp -a -d -R -v -t /media/raid_array /e*
cp -a -d -R -v -t /media/raid_array /h*
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I tried to change fstab to use the 689a... for root, but when I try to boot, it's still trying to open /dev/disk/by-uuid/412d...
So then I booted from the single disk again and chrooted into the array, then ran update-initramfs -u. I got 3 "grep: /proc/modules: No such file or directory" errors, and "cat: /proc/cmdline: No such file or directory"- so I created directory /proc/modules, created an empty file /proc/cmdline, and ran the initramfs update again. Then I tried to shut down, which hung (probably because I was doing all of this from a terminal window in Gnome), so I killed the power after a couple of minutes.
It's still trying to use /dev/disk/by-uuid/412d... to boot.
What am I missing? I assume I just have to change the UUID to mount as root, but I don't know how.
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May 12, 2010
I've used gconf-editor to disable the "show_desktop" feature of Nautilus to get multiple wallpapers to work, but now want my icons back. But I can't:
Code:
warnec@lucidL:~$ LANG=C sudo gconftool-2 --type bool --set /apps/nautilus/preferences/show_desktop 'true'
Error setting value: Can't overwrite existing read-only value: Value for `/apps/nautilus/preferences/show_desktop' set in a read-only source at the front of your configuration path
It does neither work with gconf-editor. It says this key is "protected from writing"
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Oct 13, 2010
I have been upgrading from 9.04 to 10.04. Now, I want to install 10.10 from the beginning without losing the data in my current partitions but when I run the Maverick installer it recognize my disk as a whole with no partitions. From another posts, I suspect that the problem is in the partition list because it seems to be a duplicate partition but don't know how to fix it. This is the fdisk output:
Code:
jgarcia@jgarcia-laptop:~$ sudo fdisk -lu /dev/sda
Disco /dev/sda: 250.1 GB, 250059350016 bytes
255 cabezas, 63 sectores/pista, 30401 cilindros, 488397168 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
[Code]....
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Sep 2, 2010
I installed on LUKS+LVM, and I want to preserve my /home without moving the data to any external media (I don't have any). My partition layout is as follows:
sda1: /boot
sda2: encrypted volume (sda2_crypt)
sda2_crypt: LVM volume group, with /, swap and /home.
Having many previous (sad) experiences with completely borked experiments and data loss, I've decided to try the trick in VirtualBox first. I've installed Debian (testing, netinst, Dec 2009) with encrypted LVM, and touch'd a file in my $HOME so that I'd know if the contents were preserved. Then proceeded to install Ubuntu 10.04.1 from the alternative CD. After the installer started and loaded some of the basic components (but before it entered the partitioner) I've switched to a shell and read a scroll of identification:
Code:
$ cryptsetup luksOpen /dev/sda2 sda2_crypt
[entered the passphrase]
$ lvm vgscan
$ lvm lvscan
* Another concern; after the installation, I've noticed that the contents of my $HOME were overwritten by Ubuntu's default skeleton (pictures, desktop, music, templates, and other crap). The control file I've touch'd after installing Debian wasn't there.
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May 17, 2010
I am trying to install Ubuntu LTS 10.04 on an IBM Lenovo T61 Thinkpad notebook with Windows 7 preinstalled on it. There were two hard drives one 30 GB and other almost 110 GB which (the second one) I resized in three partitions with the help of Windows 7 disk management. Now when I try to install Ubuntu, the partition manager doesn't recognize the newly created partitions it only shows 2 partitions C: and old 100+ GB D:. I had created a separate partition for Ubuntu also but I can't see it so can't install Ubuntu on it, I can't resize the visible partition because it is divided into three actually and I have data on each of three.
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Mar 14, 2011
I am trying to install ubuntu 10.10 on my system which has pre installed windows7 x64. I have 2x250 gb HDDs. 1 HDD has 2 partitions of 100 & 132gb while the other has no partitions. Now when I boot through usb, ubuntu doesn't recognize my partitions and considers it as a whole 500gb hdd (see screenshot) and I am not using any raid array or nvidia sw, infact I have an ATI GPU! I want to install ubuntu on my first HDD by creating a third partition of 12gb by creating to using windows. Also on which partition should i install the bootloader?
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Feb 6, 2010
I am trying to install ubuntu 9.10 on an system which already has XP installed. I had used Ubuntu earlier but when I installed XP ( in an attempt to dual boot) I seem to have lost the Ubuntu Installation. But the problem is GParted or the Ubuntu installer dont recognize the existing partitions but instead see it as an empty unallocated drive. I have a 120GB hard disk. Below is the extract after fdisk:
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x4fa8a60b
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x4fa8a60b .....
Also this is how the disk Utility in Ubuntu sees my system: ( See attachment)
[IMG]file:///D:/Screenshot.png[/IMG]
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Apr 9, 2010
This is the third 9.10 install to do this on two different laptops, so wondering what's up...
In both cases, the goal was to leave a large chunk of unpartitioned disk after the Ubuntu partitions, for a second OS install or a filesystem Ubuntu cannot create like NTFS.
When I install with manual partitions, the system can't boot and asks for me to insert a system disk and press any key. When I reinstall telling Ubuntu to "use the entire disk" it then works.
First laptop, first try:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
First laptop, second try without the /boot partition:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
"use entire disk" works perfectly.
Second laptop, first try:
Same thing, non-system disk or disk error, insert system disk.
Second try "use entire disk" is currently in progress but I expect the same to happen.
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Jul 28, 2010
I've configured my RHEL system to be used as tftp server. I've configured NFS,VSFTPD and DHCP too. Everything works fine, the clients are able to boot from PXE and get the kickstart information from the server and the installation completes successfully. Now the problem is the RHEL installation removes all the existing windows partitions. How do I make my system a dual boot? I've configured my kickstart to use "Remove existing Linux Partitions" and the problem still persists.
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Aug 30, 2010
I've been running Fedora Core 3 on a P4 450 as a personal Samba server and domain controller. It's worked so well that I never gave any thought to upgrading. The other night, I noticed that Up To Date wasn't working, and that Firefox was acting strangely. I made the FC 13 installation disks, whereupon I found out that the system didn't have enough memory.
Rather than mess with the P3 450 any more, instead I swapped main boards and decided to do an upgrade. it even possible to do an "upgrade" from 3 to 13? Is it possible to maintain my existing partitions/settings. I've backed up everything that I'd be too unhappy to lose. It's a two drive system and the second is nothing but data, none of it catastrophic to lose, but at least disappointing. I'd like to keep the data and settings on the primary disk, but won't cry if I can't.
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Apr 18, 2010
I am planning to install 10.4 when it arrives. And am not going to upgrade because i upgraded from 9.04 to 9.10 so now i need to refresh the system.But I have all my partitions except root using lvm2 logical volumes. My question is : What is the safest procedure to install 10.4 on an existing lvm2 without losing my files/partitions
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Apr 29, 2010
I'm trying to install 10.04 but during the Prepare Partitions step no hard disk is listed for me to partition.
The hard disk is a Seagate SATA (7200.7) drive and my motherboard is a Gigabyte GA-MA770-UD3. The hard disk works because I just installed a fresh copy of Windows XP on it without a problem and the OS on the disk prior to this was an older version of Debian.
Does anyone know how I can get my hard disk listed so I can install 10.04?
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Mar 12, 2011
I've read many of the postings on ICH10R and grub but none seem to give me the info I need. Here's the situation: I've got an existing server on which I was running my RAID1 pair boot/root drive on an LSI based RAID chip; however there are system design issues I won't bore you with that mean I need to shift this RAID pair to the fakeraid (which happens to most reliably come up sda, etc). So far I've been able to configure the fakeraid pair as 'Adaptec' and build the RAID1 mirror with new drives; it shows up just fine in the BIOS where I want it.
Using a pre-prepared 'rescue' disk with lots of space, I dd'd the partitions from the old RAID device; then I rewired things, rebooted, fired up dmraid -ay and got the /dev/mapper/ddf1_SYS device. Using cfdisk, I set up three extended partitions to match the ones on the old RAID; mounted them; loopback mounted the images of the old partitions; then used rsync -aHAX to dup the system and home to the new RAID1 partitions. I then edited the /etc/fstab to change the UUID's; likewise the grub/menu.list (This is an older system that does not have the horror that is grub2 installed) I've taken a look at the existing initrd and believe it is all set up to deal with dmraid at boot. So that leaves only the grub install. Paranoid that I am, I tried to deal with this:
dmraid -ay
mount /dev/mapper/ddf1_SYS5 /newsys
cd /newsys
[code]....
and I get messages about 'does not have any corresponding BIOS drive'. I tried editing grub/device.conf, tried --recheck and any thing else I could think of, to no avail. I have not tried dd'ing an mbr to sector 0 yet as I am not really sure whether that will kill info set up by the fakeraid in the BIOS. I might also add that the two constituent drives show up as /dev/sda and /dev/sdb and trying to use either of those directly results in the same error messages from grub. Obviously this sort of thing is in the category of 'kids don't try this at home', but I have more than once manually put a unix disk together one file at a time, so much of the magic is not new to me.
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May 25, 2010
I'm install it onto my laptop (its about 4 years old - a Sony Vaio VGN FS315E).
I have been given a live disk of the latest edition of ubuntu (10.4?) by someone at work, but my CD drive on my laptop seems to think the disk is blank. I know this is not the case as when the disk is inserted into a different laptop is it recognised as an ubuntu installation disk.
My aim to boot ubuntu from the disk to get a feel for what it's like before installing it fully on my laptop, and also to check that it would work on said laptop.
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Feb 17, 2010
I have to shred a disk from a custom program. Now I open the disk (/dev/sdaX) from a C program and write /dev/urandom to it. But, most of the time the disk is being used by other programs. At least a 5-10 programs will have files opened on that disk. I cannot kill all the programs as some of them are critical. (Now, don't ask me why I am trying to overwrite a disk which is live and being used by some critical programs. Some moron designed it that way and gave me to implement). Sooner or later, write to /dev/sdaX will fail.
Is there any way (may be some flags that I can pass to open while opening a disk for writing) that I can use so that my overwrite continues even if other program is using the disk? (I am not bothered about what will the other program read and process from the disk when this happens)
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Sep 8, 2015
I'm trying to upgrade my Win8/Wheezy 64-bit machine to Jessie 8.1 by installing from the amd64-bit netinstall iso image on a USB flash drive. I had done the previous, Wheezy, install on a disk partition that was whole-partition LUKS/LVM drive, with separate logical partitions for swap, root, and home.
Before doing the upgrade, I booted to the BIOS to ensure that my UEFI system had the correct, CSM and Legacy modes enabled in it, so that installer would boot using the non-efi BIOS mode.
Step one of the upgrade was to boot the netinstall and enter the rescue mode so that I could manually do the cryptsetup/LVM business. When I returned to the installer, I mounted the now-recognized logical partitions normally, choosing to format only the swap and / partitions.
During the entire process, I had to go into rescue mode one more time to manually mount the unencrypted /boot partition, along with my /home partition. I copied a backup of my old /etc/crypttab from the latter, and after returning to the installer, finished the install. That finish included installing grub on my hard drive's main boot partition.
Everything seemed to finish with no problems. However, when I try to boot the debian bootloader, I get tossed to grub rescue with the message that '/grub/x86_64-efi/normal.mod' doesn't exist. At this point I returned to the installer, mounted the /boot partition, and saw that there grub-install didn't create that an x86_64-efi directory at all. Instead, it had created an i386 directory. The exact name escapes me at the moment.
I *think* that my install was clean other than the last bit that was related to installing the bootloader. How to reinstall the bootloader in such a way as to make all of this work.
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Nov 16, 2010
I've had Ubuntu 10.10 installed for a while and I recently cleared a partition to install Windows XP. However, when I load from the Windows XP boot CD, I get "7379one MB disk 0 at ID 0 on ?Bus 0 on atapi(Setup cannot access this disk)". I've tried just about everything
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Mar 4, 2011
I am installing 10.10 on my PC. I have changed the hardware and the previous install was for a x64 I now have x32. I ran the live disk and have selected install. I am now on the partition page, (manual). I am happy with the concept of partitioning and which partition is which, but I can only change the linux partition. At the moment I have @60G NTFS, 1G swap and @18G Linux. I want to reduce linux partition to about 12G (which is fine I've done that) I now have free space. I want to increase the swap partition to 2G and the remainder to be added to the NTFS partition. However, I can't add any more disk space to the latter partitions. The Swap partition has the space bar available, but the increase is greyed out and on the NTFS partition, there is no option at all.
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May 1, 2011
I have 10.10 installed within my Windows Xp.All was fine.Then,I upgraded to 11.04.Boot screen etc is fine .Log in is automatic in Classic.Unity & Compiz not supported.Now,again everything is fine except that my xp partitions are not recognised and hence I can not mount them and access them.
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Nov 9, 2010
I'm trying to install Ubuntu 10.10 64-bit on my laptop HP pavilion 3046ee . When I reach the partition part , it doesn't detect the Windows 7 os , and doesn't detect any hard disk partitions ( it sees the whole hard disk as one unallocated partition ). I faced the same problem when I tried Ubuntu 10.04 LTS.
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Jan 28, 2010
I am trying to install ubuntu 9.10 alongside windows on my laptop's harddrive. When I was going through the procedure it gave me the option of a guided partition of my harddrive... however there was an error. At this stage I unplugged my external harddrive because it's sometimess a bit dodgy and restarted the installation process. However everytime since that I have tried to install, it only gives me the option of erasing the entire disk or specifying the partitions manually
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Nov 21, 2010
I tried to install ubuntu 10.10 today through livecd. but the partitions in my 60gb samsung harddisk are not detected. My entire harddisk is shown as unallocated free space. Also gparted is not detecting the partitions as well. I am currently not facing any problems with my partitions in windows xp. I tried the solution given here (to no avail): [URL]. I have had no such problems with previous versions of ubuntu.
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Apr 11, 2011
Wanting to dual boot XP with UBUNTU. Live CD verified good.
ran df in terminal:
Ran sudo fdisk -lu in terminal:
Partition table entries are not in disk order
Originally I had two partitions for Windows xp of 100 gig each. I cleared / backed up the second partition and created two 50 gig partitions, splitting the second into two linux (using Gparted) partitions labelled root and swap.
Disk Utility sees this hdd as a RAID component. It is connected through a RAID controller.
The installer (in allocate drive space step) doesn't see them for some reason.
Hardware:
AMD Athlon 64+clawhammer processor
Asus A8N-SLI mobo
hdd as above
2 Gig RAM
DVD / CD Burner
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Jul 14, 2011
When I was installing Ubuntu onto my laptop, I probably did a mistake partitioning the hard drive by selecting align to: nothing, because I didn't want to have unallocated spaces between partitions. However, this resulted in partitions' misalignment as no one partition in the extended one (including the one that is extended) doesn't start on a physical sector boundary. As I already have much data on the HDD and I don't have another one that big, it is impossible for me to erase existing partitions and then copy the data back. So, is there please a way to get the partitions aligned properly without deleting them?
Here is output from fdisk -lu:
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xd58c6e9d
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Oct 11, 2010
Can I delete the ext and swap partitions from disk management on windows 7 ? Because I want to install a fresh new copy of ubuntu 10.10 . I know it would affect windows 7 boot up.I can handle it by system restore Anyway can I do it or not ?
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