Ubuntu :: Grub Won't Correctly Recognize OS On Second Drive?
Mar 27, 2010
I have 2 internal harddrives.
I installed Vista on sdb1 and later Ubuntu on sda1.
When I boot up, I am given choice of OS's to boot into. That worked fine until I formatted sdb1 and installed Windows 7.
Now when I boot, I am given the exact same options as before, and when I select the the old "Vista" Menu item, it gives me an error that it can not find some long serial number. The number is not my drive serial number. That number is completely different.
I can still boot into Ubuntu with out a problem.
Now, in order for me to boot into windows, I have change the BIOS boot order. That is obviously not ideal.
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Apr 12, 2010
My 13 year old Pentium 3 1.3 ghz machine is finally ready to call it quits. specifically, my slave drive where all of my music is stored. I can access a very small portion of the the files on the HD, The files are still there but are not showing up. any ideas on how I could access this drive. I wanted to try to reinstall my os on the primary drive in hopes that it wouldget it working, unfortunately I've run into what's seems to be a common problem of my usb keyboard not being recognized.
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Apr 23, 2010
I have installed ubuntu in my D drive on my lenovo laptop but it not recognizing D drive only recognize C drive
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Jul 10, 2010
I have Mac OS X on a second hard drive, and GRUB/BURG detects 32-bit and 64-bit versions of OS X. Problem is, my CPU isn't x86-64, so I don't need the x64 version. Also, I have to use the BIOS to select OS X, because GRUB won't boot correctly to OS X anyway. 30_OS_Prober detects them despite all my efforts. Is there any way that I can block /dev/sdb boot entries?I have FreeBSD on /dev/sda3 and GRUB won't autodetect it. It's under 40_Custom, but still won't appear.
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Jul 18, 2010
I've been running ubuntu 9.10 until this week without any problems. I've just done an in-place update to 10.04 and now cannot boot my windows XP partition.
looking at grub.cfg it appears to be referring to sdb1 as the XP partition whereas the disk utility says the correct partition is sdb5.
sdb1 is a data partition formatted ntfs but not bootable.
When I choose XP from the grub menu all I get is a black screen with a flashing cursor at the top, which would suggest it is trying to boot the data partition.
I've tried update-grub and also startupmanager and it makes no difference. I would just try to edit grub.cfg but the next update would presumably wipe out my changes.
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Nov 16, 2010
I have have just installed 10.10 on my Acer Aspire laptop. I connected to the Internet during installation and therefore should be right up to date. Grub2 does not show Windows 7 as a boot option. Did a bit of searching and ran sudo update-grub2 but no success. I am a newbie as far as Ubuntu is concerned. I installed 9.04 on my netbook and that worked fine. I have the added problem in having to get into Windows very shortly and I haven't a clue how to do it if grub remains broken. Windows partition still there I have not deleted it.
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Jun 8, 2010
I had windows 7 installed on my machine and decided to go with a ubuntu win7 dual boot. The install went fine, but Ubuntu doesn't see my second HDD as anything but empty. My second HDD I set up in win7. It is actually two 320GB HDD striped together. It is holding alot of data that I would like to be able to access from both win7 and ubuntu.
When I run fdisk -l in the terminal I get:
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf1c572ca .....
So Ubuntu sees the two HDD, just not as one with all my data on it like I see it in windows. Is there a way to set it up so I can use that second HDD (the two stripped) in both win7 and Ubuntu?
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Apr 18, 2011
After installing Ubuntu 10.04 on an external HDD (via Live-CD), grub never shows a menu, it only goes to command line.Every time I want to boot, I have to enter these commands:
set prefix=(hd0,1)/boot/grub
set root=(hd0,1)
linux /vmlinuz root=/dev/sda1 ro
[code]....
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Sep 27, 2010
I have a secondary harddrive that is auto mounted through fstab at startup in the /mnt/media_drive folder. I have not had any problems out of it until today.
I was trying to get the computer to act as a PS3 media server. I installed pms-linux, couldn't get it working, removed that, installed ushare, didn't like that, uninstalled that and reinstalled pms-linux. Now the PS3 sees the folder, but nothing else does. When I ls -l the /mnt/media_drive folder, I get this:
Code:
derek@shop:~$ ls /mnt/media_drive -l
ls: cannot access /mnt/media_drive/audio books: Permission denied
ls: cannot access /mnt/media_drive/playlists: Permission denied
ls: cannot access /mnt/media_drive/Christmas: Permission denied
ls: cannot access /mnt/media_drive/DVD_temp: Permission denied
ls: cannot access /mnt/media_drive/OTR: Permission denied
[Code]...
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Mar 23, 2010
It worked fine for awhile, but recently my usb keyboard wont work, ONLY IN GRUB. So I cant use grub to select another boot option. This kbd does work in Ununtu and on my other XP machine. Old version of Grub, I believe. (not GRUB 2). No error messages displayed.
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Jun 3, 2011
I recently installed Ubuntu 11.4 and I want dual-boot machine. Before Ubuntu on machine was installed only windows7. Since I install Ubuntu I do not see Grub(or any other) boot loader. When I start computer it automatically boot Ubuntu without prompting choose OS menu.
How can I set grub2 to ask me this question?
Here is my partition configuration
Code:
Boot Info Script 0.60 from 17 May 2011
============================= Boot Info Summary: ===============================
=> Windows is installed in the MBR of /dev/sda.
[Code].....
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Jan 13, 2011
I'm new to ubuntu. My kingston 4Gb pen drive doesn't recognize from ubuntu 10.04.
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Apr 2, 2010
Computer: Lap top Toshiba Satellite
Distribution: Ubuntu 9.04 installed on the entire hard drive
Problem: Ubuntu does not recognize CD-ROM drive "D".
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Jun 15, 2010
in my first start on fedora 13, with grub 0.97 did not recognize ubuntu licid, but recognizes winxp, now i try to change to grub 2 but, always begin whit grub1,
how i can replace grub1 by grub2 or how i can boot from grub2 of lucid?
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Jul 24, 2010
So I am experimenting with other linux distros.....I just installed a small partition with OpenGEU, the one still based on Ubuntu.....now it wont recognize Mint. Ubuntu Studio is next on my list, but before I invest any more work I want to make sure I can add more partitions to grub, not just the most recent linux partition...
I think that future distros of linux should have a fix for this....if you install linux it should detect every other operating system on the disk, not just windows plus the most recent linux install.
install /boot separate? I always create a / and /home partition but never separate boot. Does that make life easier?
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Oct 13, 2010
i can't boot up my win XP after installing Ubuntu 10.10.
I decided to replace my Vista partition with Ubuntu 10.10 so i redo my partitions and split the current Vista partition to a swap and root partition and install Ubuntu 10.10
Everything went well and i got Ubuntu up and running. However, i realize that GRUB 2 didn't recognize my existing windows partition. I double-check on grub.cfg and see that the default os_prober didn't recognize my XP partition either.
After search on the internet for a while, i found many similar issue where most are fix when manually adding the entry yourself so i decided to add an entry 11_XP under /ect/grub.d/ for windows XP and confirm that the new entry are added to the update grub.cfg file before restarting
Code:
### BEGIN /etc/grub.d/11_XP ###
menuentry "Windows XP" {
set root=(hd0,5)
insmod chain
drivemap -s (hd0)
[Code].....
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Nov 26, 2015
I'm having issues with a RAID array.
Setup is like this:
Debian Jessie, 2 hard disks, each having 2 partitions: /dev/sda1, /dev/sda2, /dev/sdb1, /dev/sdb2. Partitions were paired during installation, so they form /dev/md0 and /dev/md1. /dev/md0 is the root (/) partition, /dev/md1 is for /home.
At the end of the install process, I chose /dev/sda1 to carry Grub. And I think this is where I screwed things up.
After removing one of the hard drives, there was no boot capability. So, I installed Grub on /dev/sdb, too.
Now it displays the boot menu but cannot find the kernel. This is where I got lost in the process.
Do I need to reinstall the OS or is there a way to fix it? I suppose I have to edit Grub.
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Jul 8, 2011
I have a nice spare K6 machine with a 66G drive and OS/2 Warp 4 installed on the primary partition, which is all of 2G, formatted in HPFS. Like DOS, OS/2 can only be on the primary partition. I have set up and formatted 3 additional partitions as ext2 or ext3 using qParted. GRUB is a great bootloader, but does not seem to recognize the primary partition at all, making multiboot difficult. Is there a way of getting GRUB to recognize the HPFS?
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Feb 9, 2010
I have a dual boot installation of ubuntu and windows vista. After upgrading to Karmic I haven't been able to access to the CD drive. How can I use it? The following error message is displayed when I click on Places --> cdrom0:"mount: special device /dev/scd0 does not exist"I am about reinstalling the whole OS, but for that I need the CD
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Apr 4, 2010
So I tried to install Ubuntu on my Acer Aspire ASE380 desktop, and I think during the partition portion. I think I messed up the hard drive.
Now my computer won't recognize my hard drive. I've tried using the acer repair disks I made, I tried unplugging and checking all the cords and lines, I tired flashing the BIOS, I've tried using other boot disks like Ultimate boot CD, and Acer support is no help either.
I really don't know what to do now. It shows nothing in the boot setup or the BIOS set up. I've also tired the ALT - F10 for acer computers to enter and repair partition and nothing.
I just want to get this thing up and running. I'm tempted to just buy a new hard drive.
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Aug 3, 2010
I've been trying for hours now to get Ubuntu 10.04 Netbook Remix onto my HP Mini 1030NR. It boots up fine from the flash drive, but then when I go to install UNR on the hard drive I get through the first 3 steps and then get stuck. It goes to the "Prepare partitions" screen but no devices are shown to be partitioned. I formatted the hard drive I'm trying to install on on another computer to NTFS, so it should be blank and ready to go? I should probably mention the drive doesn't show up in GParted either. Is there something obvious I'm overlooking?
I've tried the methods suggested in this thread to no avail: [URL]
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Aug 13, 2010
How do I get convert x to dvd to recognize my dvd drive?
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Aug 20, 2010
Since using Ubuntu, I have always been amazed that I can plug a drive formatted on a Mac or PC, into a Ubuntu machine and it will see the files on the drive. Why is it that Ubuntu can do this and Windows can't unless you install special software so that you can read Mac or Ubuntu formatted drives on a PC. I really like this ability of Ubuntu a lot!!
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Sep 20, 2010
I intend to install ubuntu server 10.04 on an IBM blade server x3550 m3. The server has two SAS and two SATA II hard drives, each configured as RAID 1 through a ServeRAID m1015 card. However, ubuntu didn't recognize any hard drives at the installation.
Is there a way that I can load raid driver (if exists) during installing Ubuntu?
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Dec 7, 2010
I was wondering what I need to do to install software in Virtual Windows? Basically how do I get VB to recognize the CD drive?
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Dec 22, 2010
I have Ubuntu installed on a separate drive. Dual boot with win XP. It was working out fine..Then, and I don't remember exactly when, the boot process was interrupted saying Drive 2 not found..the Ubuntu drive. So I press F2 and enter BIOS setup. I have to cycle through the drives to #2, select 'on', then leave BIOS setup. OK so far..I can confuse myself.. Anyhow, my computer will then continue to the Dual boot screenWindows will load fine, but Ubuntu goes to a command line screen for grub>.When I push 'Esc' I go to a screen with several commands listed, most of which return me to the grub> prompt..the 'reboot' command sends me back through the Bios process, the 'halt' command shuts down the computer. Grub> wants something and I don't know what it is. Do you think I'll have to reinstall? Bad hard drive?I'd like to get my Ubuntu back really just getting to get a feel for the system.
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Apr 13, 2011
I'm usually an Arch Linux Fellow so I have little experience with Debian based systems. I'm installing Ubuntu 10.10 on this laptop for my mum, everything works fine apart from the DVD drive. It refuses to detect DVDs at all (I've tried 8 different ones). It grinds and grumbles at me and makes all sorts of ungodly noises. The drive works fine mechanically as it's been used before under Arch and I used it to install Ubuntu yesterday. I've installed all the relevant codec packages and other odds and ends to play DVDs with, but still nothing.
[code]....
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Jun 10, 2011
I am trying to install Ubuntu 11.04 64bit on my computer, I downloaded it onto my flashdrive from [URL]... When I reach the installation screen all the boxes are checked except 4.4Gb of space available, I know I have enough space because I am using a 1TB hard drive, I also have Windows 7 installed and it recognizes my hard drive. I have tried this with my hard drive partitioned and unpartitioned. I only have 1 hard drive and it has never been part of a raid array. I've also looked on google and the Ubuntu forums and still can't find anything relevant
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Aug 24, 2009
I went through the Fedora 11 DVD setup process up to the partition screen, which does show my external SATA drive correct as; /dev/sda when connected by eSATA, but it shows the internal drive which is a standard IDE, as; /dev/sdf , when it should be as; sdb, why ? I did run that fdisk -l in a terminal from one of my other installed Linux, and it did show drives as correct, ( sda, sdb ). I think this may be a issue related to the digital media card reader built into this 2006 Gateway desktop computer being detected as drives like Windows does and assigns drive letters, or is this some bug in Fedora 11 ?
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x826d56f6
Device Boot Start End Blocks Id System
/dev/sda1 * 1 26 208813+ 83 Linux
/dev/sda2 27 1958 15518790 83 Linux
[code]....
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Jun 24, 2011
My DVD-ROM drive seems to have issues under Fedora 15.This is the "normal" spin with GNOME3, all updates have been installed.First off, the drive seems to get "stuck" will not eject any media once inserted.Occaisionally, if I just keep pressing the eject button, the media tray will jump out, but then will immediately pull itself back in without any interaction from me.Second issue: video DVDs do not mount. It does not seem to matter if libdvdcss is installed or not. When a DVD video disc is inserted, the DVD drive completely disappears from Nautilus' Computer window. Once I eject the DVD (after pressing eject 50 times) the drive comes back to the Computer window.The drive is a Plextor DVD-RW PX-755SA connected via SATAI have tried using either regular IDE or AHCI configuration in the BIOS for it, no change either way.The drive works fine under Ubuntu and OpenSUSE, but I like F15 better and would like to get this fixed.
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