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Help with error umountable boot volume - Computers & Internet

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If you receive the “unmountable boot volume” error and have an installation disk, you still have a chance to save your system.
1. Insert your XP installation disk into an optical drive and boot up your computer.
2. When you see a welcome screen, hit the R key on your keyboard. This will enter you into recovery mode with a DOS prompt.
3. Now type chkdsk /p and hit Enter. This will launch a utility which will check for errors on your hard drive.
4. After the process is done, type fixboot and hit Enter to repair any damaged boot files which may have become corrupted. When asked to say yes or no, type the Y key on your keyboard.
5. Type exit and press the Enter key to reboot your computer.

Posted on Sep 10, 2010

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SOURCE: umountable boot volume

power down the pc unplug it and when it restart up go to F2 and see if you booting in c or in your cd rum try this

Posted on Dec 20, 2008

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Boot problems and their possible causes & resolutions


Symptoms:
Black screen
"Invalid Partition Table"
"Error loading operating system"
"Missing operating system"


Cause:
Corrupt Master Boot Record (MBR)

Resolution:
Boot into Recovery Console and run "fixmbr" to repair the MBR

--

Symptoms:
"A disk read error occurred"
"NTLDR is missing"
"NTLDR is compressed"


Cause:
Corrupt boot sector

Resolution:
Boot into Recovery Console and run "fixboot" to repair the boot sector

--

Symptoms:
"BOOT.INI is missing or corrupt"
"Boot device inaccessible"
"Windows could not start because the following file is missing or corrupt:
<Windows root>\system32\hal.dll"


Cause:
BOOT.INI missing, corrupt or out of date as a partition has been inserted

Resolution:
Boot into Recovery Console and run "bootcfg /rebuild" to repair the BOOT.INI

--

Symptoms:
"Windows could not start not start because the following file is missing or corrupt:
\WINDOWS\SYSTEM32\CONFIG\SYSTEM"


Cause:
Corrupt/missing system hive

Resolution:
1. Boot into Recovery Console and run "chkdsk C: /f" to check the system disk for errors and fix them, then reboot.
2. If the error continues and System Restore is enabled, copy the system hive from the last restore point into \WINDOWS\SYSTEM32\CONFIG
3. If the error continues, copy the system hive from \WINDOWS\REPAIR into \WINDOWS\SYSTEM32\CONFIG
4. If the error continues, perform a repair installation by booting from the Windows installation media


--

Symptoms:
"Windows could not start because of a computer disk hardware configuration problem.
Could not read from the selected boot disk, Check boot path and disk hardware."


Cause:
Boot volume (with Windows folder) is not accessible as defined in BOOT.INI

Resolution:
Check the boot volume is accessible

--

Symptoms:
Dual-boot 32-bit Windows and 64-bit Windows system reports "NTOSKRNL.EXE is corrupt" trying to boot into 64-bit Windows

Cause:
System volume contains an older boot loader than the boot volume requires - e.g. XP SP2 installed after XP x64

Resolution:
Copy NTDETECT.COM and NTLDR from XP x64 installation media to the root of the system volume

on May 03, 2010 | Computers & Internet

1 Answer

Hi, I was having a quick look through the font CD but am unable to eject it! I havn't installed any as yet, just browsing through but my Mac displays a message box "CD is in use". Am I overlooking...


Ordinarily your problem would indicate that some application is using the CD for something like playing back music or reading a file.

Assuming you have tried every other way, (command-E, dragging to trash, and hitting the eject key on the pro keyboard, unmounting),the next step is to force the unmount of a volume.

Just open a Terminal and use umount:
sudo umount -f /Volumes/FooBar

If that doesn’t work you can also try:
sudo diskutil umount force /Volumes/FooBar

Oct 07, 2009 | Apple Computers & Internet

1 Answer

Booting from a USB Stick


Here you go:

Download the Ubuntu Live ISO (if you dont have it already) and burn it to CD
Restart your computer (booting from the Ubuntu Live CD)
Insert a 1GB or larger USB flash drive
Open a terminal window and type sudo su
Now type fdisk -l to list available drives/partitions (note which device is your flash drive Example: /dev/sdb). Throughout this tutorial, replace all instances of x with your flash drive letter. For example, if your flash drive is sdb, replace x with b.
Type umount /dev/sdx1
Type fdisk /dev/sdx 
type p to show the existing partition and d to delete it
type p again to show any remaining partitions (if partitions exist, repeat the previous step)
type n to make a new partition
type p for primary partition 
type 1 to make this the first partition
hit enter to use the default 1st cylinder
type +750M to set the partition size
type a to make this partition active
type 1 to select partition 1
type t to change the partition filesystem
type 6 to select the fat16 file system
type n to make another new partition
type p for primary partition 
type 2 to make this the second partition
hit enter to use the default cylinder
hit enter again to use the default last cylinder
type w to write the new partition table
Type umount /dev/sdx1 to unmount the partition
Type mkfs.vfat -F 16 -n usb /dev/sdx1 to format the first partition

"Alternately you can try mkfs.vfat -F 32 -n usb /dev/sdx1 (doesn't always work)"
Type umount /dev/sdx2 to ensure the partition is unmounted
Type mkfs.ext2 -b 4096 -L casper-rw /dev/sdx2 to format the second partition
Remove and Re-insert your flash drive
Back at the terminal, type sudo apt-get install syslinux mtools
Type syslinux -sf /dev/sdx1
Restart your computer, remove the CD and boot back into Windows

Using Windows to prepare and move the files to the USB Stick:
Create a folder named USB on your computer
Download UBconvert.zip using this link - http://www.pendrivelinux.com/downloads/UBconvert.zip
Now, extract the files to the USB folder
Move the Ubuntu  ISO downloaded earlier to the USB folder
Click fixu.bat from the USB folder (follow on screen instructions)
Move all files from the ubuntu directory to your memory stick
Reboot your computer and set your system BIOS to boot from USB-HDD or USB-ZIP. Also set the "Hard Disk Boot Priority" if necessary.

You should now be booting into Ubuntu Linux from your USB drive!

Dec 28, 2008 | Toshiba Satellite R15-829 Tablet PC

1 Answer

Umountable boot volume


power down the pc unplug it and when it restart up go to F2 and see if you booting in c or in your cd rum try this

Dec 20, 2008 | Dell Dimension 4300S (Refurbished)...

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I/O Device error


First , i need to ask u if u try it on ur pc_usb only?

Sep 03, 2008 | Computers & Internet

1 Answer

Virus haveaffected my computer


In blue screen it wrote some error message read it,if is umountable disk load check all the cables or unplug and plugin them again properly.if any other error message is present kindly re-install the system and install an antivirus software 1st before using any external device or internet.keep the antivirus software upto date.

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1 Answer

Boot volume error


A stop error indicating UNMOUNTABLE_BOOT_VOLUME is nearly always symptomatic of a hard drive that has died. Take your PC to a local technician to be serviced.

Jun 12, 2008 | Toshiba Satellite 1805-S204 Notebook

1 Answer

Acer Aspire 4720 RHEL4 Installation


again install linux in between the installation there will be option select linux boot loader , and one more think linux partition space should more then windows partition

Mar 26, 2008 | Acer Aspire 5100 Notebook

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Unable to Install Red Hat Linux Enterprises 4


when the time of installing only you have to take linux boot loader then it will show both operating systems otherwise i think the problem is monitor configuration in linux installing

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