Ubuntu Installation :: Grub Error 18 Trying To Boot From External Hard Drive?

May 25, 2010

I have Ubuntu/Vista dual boot desktop with Single HDD (200GB) that i cloned to an external USB HDD (320GB) using clonezilla. My intention is to use the external HDD as a backup to up running in case my 3 year old desktop HDD fails. To make sure the clone is good to use if need, i connected external HDD to USB port and tried boot from it but got "Error 18". I tried to Google got some infoDid a fdisk -lu and got the following.

Code:
Disk /dev/sda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders, total 390721968 sectors

[code]....

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General :: GRUB Boot - Error: Attempting Boot From Hard Drive (c GRUB)

May 16, 2011

we have an oracle application server on red hat 4.6 upon booting it comes up with error: attempting boot from hard drive (c GRUB)

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OpenSUSE Install :: Grub Error 18 - Unknown File System - Running From External Hard Drive

Jan 11, 2011

It started when I wanted to dual boot Windows 7 and Opensuse off of my netbook (No DVD/CD drive) I tried install suse from an external hard drive and I botched it. I ended up erasing EVERYTHING off of my internal netbook hard drive. Windows and all.

Well, I had a couple of other computers so I studied up and eventually successfully installed OpenSUSE 11.2 on my external hard drive (11.3 being the one that I accidentally erased everything with, so kinda scared of it) and now I want to install openSUSE 11.2 on my internal netbook hard drive.

I can not use disks

I can not use a flash drive (For some reason, even if I make it bootable, it will not load up, this could be because it's actually a 8GB microSD card that is placed in a USB card reader.)

I can not use an external hard drive because that's what I'm running suse off of.

I've tried reading up on how to install suse on another drive off of the hard drive and I've gotten as far as whenever I boot up the netbook with the suse external hard drive connected it will ask to boot into OpenSUSE, the Fail Safe, or to install OpenSuse. When I select to install it it gives me the Error 18 Unknown File system.

I've tried formatting the internal hard drive twice. One as NTFS and again as EXT4. Neither seems to effect it other than when it's ext4 I can open it and it contains a Lost and Found folder.

When I interrupt the boot sequence by pressing c and going to the terminal and I use the root (hd +TAB command it tells me I have a hd0 and a hd1. The hd1 only has 1 partition which is ext4, which I'm assuming hd1 is the internal hard drive (I'm not sure how to check) and the hd0 is the external hard drive, which has three partitions. One with an unknown file system and two with ext4. When I try to enter the set up from the terminal it gives me the same error for any thing I put it (e.g. root (hd0,0) gives the same error as root (hd0,1), or root (hd0,2) and root (hd1,0)

Something like it cannot locate these two files I'm assuming it needs to boot. If anyone finds this relevant I'll retry it and post the files its missing.

I've been searching for awhile and can't find any threads that can solve my problem. From other threads, however, I have noticed that I should probably include my menu.lst, listed below

Code:

I have also ran the boot info script and received the RESULTS.txt file it generates. Listed below

Code:

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Ubuntu Installation :: Grub2 External Hard Drive - Fails And I Get A Grub Rescue

Feb 8, 2010

I've tried to be clever but as usual I didn't think before acting and missed a small detail.

I have recently installed karmic (dual booting with Vista) on my dell xps laptop. The install went fine, I'm very happy with my new OS.

I bought a new Seagate 500GB portable external HDD. I got a bit over-excited and installed karmic on the external drive. This worked fine and I got a lovely (but slow to appear) Grub2 menu showing my vista and both ubuntu options.

My problem is that now, when I unplug the external drive, Grub fails and I get a grub rescue> prompt. So I need the external drive to be plugged in if I want to boot.

It seems I have done something to the grub configuration. I have read around the subject but I am not confident about how best to proceed.

I understand there is an 'advanced' option in the installer which will allow me to choose where to install grub. Presumably I want it on the internal drive so that I can boot without the external one plugged in.

Am I right in thinking I can just pop in my install disk and redo the installation?

If I indicate I want to install Grub on the internal drive, which partition should I aim for?

Will I get a grub option for booting to the external drive?

Will I be able to plug the external drive into a different machine and boot from it?

I haven't done anything with the fresh install on the external drive so I don't mind losing that.

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Ubuntu Installation :: Can't Boot 11.04 From External Hard Drive

May 10, 2011

I am having trouble booting ubuntu 11.04 from my external hard drive, i did a custom instal using the 11.04 CD.

i made 4 partitions
/dev/sda1 ext2 /boot 1024mb (1gb)
/dev/sda5 swap 4096mb (4gb)
/dev/sda6 ext4 / 10240mb (10gb)
/dev/sda7 ext4 /home 204800mb (200gb)

and i put grub on the one what was mounted to /boot.

but my problem is when i restart my computer it just starts up windows.

my external hard drive is on, i have it set to boot from removable storage or something like ehtat first. i forget what i just know that booting from my internal hard drive is set to last so it should boot from the external.

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Ubuntu Installation :: External Hard Drive - No Boot Manager

Apr 15, 2010

I originally had windows vista on my pc and then I installed ubuntu on a partition, then I decided that I wanted ubuntu to be installed on my external hard drive so that it can be run on any computer, so I installed linux on my external hard drive then I deleted the linux partitions on my internal hard drive, then to further complicate thing I decided that I wanted grub un-installed because it ran slow when reading off of a external hard drive and just use dell's normal boot selector so I inserted my vista cd and ran /fixmbr and /fixboot which deleted GRUB and returned the default booting into vista, now my problem is that when I try to run linux by using dell's boot devices options It won't run and says that 'there is no boot manager installed'. Is it possible to have ubuntu on a external hard drive so that it can be booted from any computer? if so, how can I do it?

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Ubuntu Installation :: Install / Boot From External Hard Drive

Jun 9, 2011

I have an external hard drive connected to my iMac. I have installed Ubuntu on unallocated space on my external, the first time I chose to put the bootloader on the external but when I booted up the computer and held the Option key it didn't recognize an OS to boot from.I am currently reinstalling Ubuntu but placing the bootloader on the internal hard drive hoping that the Mac boot menu will recognize an OS to boot from.

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Debian Installation :: Won't Boot From External Hard Drive

Sep 18, 2015

I have got a 1TB USB hard drive, which I partitioned to be 500GB NTFS and on the other half I installed Debian 8.1.0. During graphical install I selected to install the bootloader not to the MBR but also to the external drive. After completing the installation I wanted to boot into Debian, but it just started Windows, which is installed on my internal. Even after choosing the USB drive in the boot menu, Windows booted. I later installed the bootloader to my internal, then I could boot into both Debian and Windows, but only if my hard drive was plugged in.

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Debian Installation :: Cannot Boot From External Hard Drive

Feb 20, 2016

I have a 2TB external Hard drive that nonetheless is being used for booting Debian off of. I have downloaded the "debian-8.3.0-amd64-netinst.iso" and have extracted it to my external hard drive. The letter assigned to this drive is "I". When I shut it down and enter the boot settings, it asks me for a name and a path for a new boot option. I have tried many different paths including:

Code: Select allI:setup.exe
I:autorun.inf
I:debian.iso
setup.exe
debian.iso

I renamed the original Debian download (debian-8.3.0-amd64-netinst.iso) to "debian" so I didn't have to type the long file name into the path. When I type in "I:debian.iso" as the path and restart it pops up with a grub prompt, in my mind that tells me that some part of the debian.iso file is corrupted.

Specs:
Dual Core i5-3317U, 1.7 GHz, Turbo boosted
8GB RAM
1TB Internal Memory
64-bit OS and processor
Windows 8.1 Default OS

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Software :: Problem With Installing Debian Onto External Hard Drive/grub Bootloader Error "21"

Jul 10, 2009

I've been running Debian Lenny kernel 2.6.26 w/ desktop kde3.5 on my laptop for a while, and im going to take a trip in which i will be unable to take wmy laptop with me. However, where i am going contains computers and i figured if i could install debian onto my external harddrive, i could just boot onto the other computers. I install it using the debianlenny-i386 dvd image. However whenever I try to boot it from a computer. Grub returns

Code:
Grub Loading...
Error 21
and then the blinkng cursor. On one site i found something saying "you may need to activat the drive" and some command-line instructions on how to do it. However the commands have faded from memory and i am now unable to find that site again. Could anyone offer insight on how to fix this "grub error 21" or how to activate it. I run primarily debian but i have a windows partition on one of my relative's computers.
Thank you in advance for the help!!!
btw I'm installing on a western digital 500gb "passport" external hard drive with ext3 and swap partitions.

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Ubuntu Installation :: Using Grub 2 To Boot An Iso Off Hard Drive?

Jul 21, 2010

I have a dual boot machine windows xp & Ubuntu 10.04. I want to use Grub 2 to boot an Ubuntu 8.04 32bit live cd image off my hard drive. I put a copy of the 8.04 iso in a new directory /boot/iso. I added the following lines to my grub.cfg.

menuentry "Ubuntu Live 8.04 32bit" {
loopback loop /boot/iso/ubuntu804.iso linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/boot/iso/ubuntu804.iso noeject noprompt --
initrd (loop)/casper/initrd.lz
}

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Fedora :: Grub With External Hard Drive?

Jun 19, 2011

I have windows on my box, I have fedora 14 on my external that goes through my usb. Grub is installed on my usb. Since the only thing stored on my external was fedora i really didn't have to do much to it. just go into bios and boot from usb. Now that im using fedora more, Id like to add Vista to my choices. I guess the numbers change once your using an external drive. Ive read some of the problems like mine but they didn't quite do it. Im going to inclose 2 screen shots of my drives/partitions and my grub.conf.

# grub.conf generated by anaconda
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that

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Software :: Ubuntu Installed On External Hard Drive, Can't Startup Without External Hard Drive?

Jan 14, 2009

I have 2 ubuntu's: 1 on my ineternal hard drive, 1 on my external

When I startup without my ext drive =>GRUB error 21.

And when I plug it in I can choose: the standard ubuntu kernel is the one on my external, and the original one is listed under other...

I'd like to be able to startup without external hard drive and make the ubuntu on my internal drve the standard.

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Ubuntu Installation :: Dual-boot `GRUB Hard Disk Error'

May 9, 2011

My system has Windows XP Pro SP2 installed on /sda1 and originally a 10.04 on /sdb1-3, now upgraded to 11.04. The Ubuntu system works fine (teething troubles with nvidia drivers on upgrade but fixed now), and the Windows system shows up in the grub menu, but when it's selected, I just get `GRUB Hard Disk Error' and nothing else. Windows installed properly, and booted successfully until I installed Ubuntu in the first place. I can still access the files on that drive from within Ubuntu.

I've tried fixboot in the Win Recovery Console, which sounded like it did something, but didn't fix the problem. This problem isn't new to grub2, by the way - I just haven't needed Windows in a year.

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Fedora Installation :: Grub In F13 X86_64 With Dual Boot From Two Hard Drive (Win7 In Control)?

Aug 27, 2010

Partition info:

sda2: Win7
sdb1: /boot
sdb2: LVM, containing , home, swap...

[code]....

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Ubuntu :: I/O Error On External Hard Drive

Jul 9, 2011

A few days back, I was moving a file from my home directory to a 1TB WD external hard drive (NTFS). In the middle of the process, the power went out so moving was interrupted. Now, the file I was trying to move is there on the external hard drive, but it can not be read, moved, renamed or removed. Besides, the destination folder on the external hard drive and all other files in it can be read, but they can't be removed or renamed.

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Ubuntu :: External Hard Drive - Able To Boot ?

Apr 25, 2011

Approximately 2 and a half years ago, I got a netbook from my Grandfather loaded with Windows XP Home Edition. For some reason it crashed on my and when I booted up my netbook again, it didn't show my anything but black screen.

From that time I wasn't able to use my computer until I discovered ubuntu and used it on my netbook. I, then, downloaded Windows 7 (lite) and got it on my netbook. The only problem that bugs me is that I want ubuntu and windows 7 and I cant because there is less disk space.

I have an 500 GB external HARD DRIVE. I want to be able to boot into UBUNTU using that. Is there a possible way to do it?

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Ubuntu :: External Hard Drive Boot?

Feb 25, 2011

i have created a live ubunto live cd from an iso file...this cd boots just fine. however, after a successfull installation onto my usb e -hdd, and a restart that spits out the live cd from the rom, my pc absolutely will not boot from the "installed version".i did the install with the internal hard drive dis connectedthe live cd will run just fineubuntu is installed correctly on the external and restartsat this point (no live cd in the dvd drive) the ehd will not boot..pc just sits therei choose booer options and choose the ehd.....this cycles through a few dos commands looking for internet and what not but will never boot

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Hardware :: WD External Hard Drive Error

Mar 28, 2011

i have a 2TB WD external HDD, works ok in windows, although sometimes tries to run on some random driver.when connected in linux i get the following error, however, my other 500GB WD HDD works flawlessly:Quote:An error occurred while accessing '2TB Backup', the system responded: org.freedesktopUDisks.Error. Failed: Error mounting: mount exited with exit code 12: Failed to read last sector (3907027119):

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Ubuntu Installation :: Installing 11.04 On External Hard Drive Drive?

Jun 19, 2011

I would like to install Linux Ubuntu 11.04 on an external hard drive - its partitioned and ready for Linux.I've downloaded and burnt the .iso file to a DVD so its all good so far...First of all... is this possible without messing up my macbook? I don't particularly want to break into my macbook to disconnect the hard drive (I read on a tutorial for a previous version of Ubuntu that I'd have to do that... - does it still apply to 11.04?) - as it voids the warranty (I checked ).The reason I ask this is because I had a friend who partitioned their internal hard drive and installed Ubuntu on it. But after installation was complete they couldn't boot up Windows 7 or Ubuntu... and it resulted in them having to clean install Windows 7... - I don't want to end up in that situation

Second... If it is possible to install it without messing up my macbook... - Do I just follow the install instructions but just make sure that where possible I make sure that everything is installed on my external hard drive?...I really need someone to put my mind at rest that everything will run smoothly and that I'll be able to run Mac OS X as usual but also that I'll be able to boot from my external hard drive to run Ubuntu.

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Apr 5, 2011

I am trying to boot from an external hard drive, and have tried to use unetbootin like I used when crating a bootable usb drive but it does not see my external and will not create bootbale iso for me to run from my external hard drive.

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Slackware :: External USB Hard Drive Auto-mounting Error

Nov 29, 2009

Just installed Slackware 13 this morning. It's been a long time since I last tried Linux, but Slack works (a lot easier than Slack 8 did back when I last used it!) quite well. I'm using the XFCE desktop and it's smooth as silk except for one odd problem-I cannot get any of my USB drives to mount. I just plugged in my Lexar 4GB USB flash drive and received an error message. Here's from /var/log/messages from when I initally plugged in the drive (I have a 500GB WD MyBook USB external drive that is always plugged in):

Any ideas or suggestions of what to look at? I'm not familiar with HAL in Linux although I've seen plenty of discussion about it and have an idea of what it's supposed to (or break! ).

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Red Hat / Fedora :: Move Hard Drive Installation To External Drive?

Mar 30, 2011

i have installed fedora 14 with so many libraries ,development tools installed on my pc but i usually have to present some projects which can run on my system .........and can't be executed or compiled due to absence of libraries and tools there so, i there some way to so that i can use this current installation on my hard drive of my pc to some external media like external hard disk and plug and use that installation anywhere on any system..

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Ubuntu Installation :: Can't Get On External Hard Drive?

Feb 2, 2011

I'm a newbie and can't get to linux on my external hard drive. I recently did a full install of Ubuntu 10.10 and am currenly running XP on my main drive. When I boot I can choose to go to my ext hard drive, which holds Ubuntu, but I'm stuck with a grub command line. What do I need to do to boot into Ubuntu from grub?

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Ubuntu Installation :: 11.04 On External Hard Drive?

May 6, 2011

I was wondering if it were possible to run and boot Ubuntu off of an external hard drive, I have a Seagate Free Agent 1.5 Terabyte external hard drive, I formatted it to FAT32 but am willing to reformat if necessary. I just really want to be able to have Ubuntu to run off of an external hard drive.

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Feb 12, 2010

I've been scouring the forums and Google for 2 days now and am not sure which track I should follow with my problem, because the GRUB path doesn't seem to be working, nor the fsck. I'd appreciate any insight anyone can provide, as I feel I'm spinning my wheels at this stage.A few days ago, I was transferring files from my Ubuntu server via SFTP to my laptop across my local network. All of a sudden, the transfer quit in the middle of transferring a file and since then, I was unable to FTP or SSH in to the server. I hooked up a monitor to see what was going on and there was only a black screen, so I powered off the server and powered back on.

While booting, the Ubuntu logo screen initially appears, but then goes to black and error messages come up, asking me if I wish to start the degraded RAID. "Gave up waiting for root device" is the message I get and it tells me that /dev/md2 does not exist and drops me to a initramfs shell. When I try to start in degraded RAID, it tells me:

mdadm: create user root not found
mdadm: create group disk not found
[49.702561] raid5: failed to run raid set md2
mdadm: failed to run RUN_ARRAY /dev/md2: Input/output error
mdadm: not enough devices to start the array

I have 4 hard drives in the server, configured as RAID 5.I boot from a Live CD and have a look at the discs.All are said to be healthy, except for the 4th which is said to have some bad sectors.I'm unable to access (or don't properly know how to access) the /boot/grub/menu.1st file to change the root delay parameter, which is what I thought I would try first.

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Jan 25, 2010

I got a dell inspiron 1501 laptop with a 80Gb sata drive what is the best solution to add data storage space for someone that love to have multiples operating systems at hand Note: I use mostly linux so I won't need to change my laptop for many years maybe ...

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Nov 1, 2010

I'm trying out puppy linux, as I have an old system, and the new Ubuntus do not work on it.

Anyway,I cannot boot from my hard drive but only from the floppy.I'm just not too keen on always booting from the floppy.

Here is the Menu.ls file:

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Feb 6, 2010

I tried to install Ubuntu on an external drive, but it doesn't boot, but it installed GRUB on my main HD, and now I can't even boot Windows. I only get a "grub rescue" prompt. I need to remove GRUB. How to do it?

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Ubuntu Installation :: Installing 9.10 On An External Hard Drive?

Feb 20, 2010

I looked around on these forums and google and came to no solution so, I decided to make this thread. I'm using Windows XP and after I downloaded and tested out Ubuntu 9.10, I decided I'd like it as a second OS, can I install Ubuntu on my external hard drive (1TB)? would installing on an external hard drive take away the risks of losing data etc? If I installed Ubuntu on my external hard drive would it delete any files already on my hard drive?

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