Ubuntu :: 9.10 Will Not Boot If External HDD Unplugged
Apr 29, 2010
When my Western Digital MyBook is plugged into my desktop machine via usb everything works fine. The computer boots up normally to the dual boot screen, and all OS options will boot up normally. However, if I unplug the external hdd (whether that be when the computer is off, or I unmount it and then restart) before I get to the dual boot screen I get an error message informing me that I have incorrect boot media, and to insert and hit any key. Some background: I have checked the bios and it is set up to boot from the internal sata hdd as the first boot device, and there are no usb boot devices defined. Prior to making this a dual boot machine, it ran windows only, and had no issues booting when the external hdd was unplugged.
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Mar 2, 2010
After installing ubuntu 9.10 on external HDD I cannot boot vista if external usb is unplugged(where ubuntu is installed). it says grub loading and after that recover grub ( i think that is what is says ... not certain in this moment ) anyway hope you get my dilemma. If you need more information I'll be glad to provide it.
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May 26, 2010
So basically, as rookie as it sounds, I spent about 3 days trying to figure out why my computer wouldn't boot (BIOS not found, then it ran grub rescue) until I saw that my external hard drive (which evidently somehow has some file on) was unplugged. I am running windows and ubuntu 10.4 on partitions on my computer's internal 120gb drive. The problem I have is that during these 3 days, I re-installed ubuntu on the drive from the CD- so I think I have 3 partitions, even though the 3rd does not show up as an option to boot into from startup.
What it does show though, is on my desktop I have 2 mounted drives:
One 52gb one that has my Windows files in it, and one 44gb one that has ubuntu files in it, but NOT the ones I use- this is the rogue copy I installed by "accident". I checked this by looking through the contents and it was all minimal (nothing in home folder).
How do I "remove" this partition safely, and return to having just a windows an ubuntu partition?
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Feb 18, 2011
I have got rid of windows 7 of my laptop and installed Ubuntu 10.10. So for the past week or so have done a lot o testing and stuff. Laptop I have is hp pavilion tx 2000 model tx 2130ea. Problem I have is laptop wont boot when unplugged but boots when plugged in. When it starts up you can hear the logo music but screen remains black. Now I have found what the problem is after hours of fault finding. Ubuntu detects the additional drivers to download wireless driver etc., and a couple of nvidia 2d/3d drivers so its when one these nvidia drivers are installed is what causes the problem when booting up unplugged. No problem when plugged in. At the moment I just have not installed these nividia drivers and all is good. Graphics Card Nvidia Geforce Go 6150.
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Aug 22, 2011
My Fedora 15 is not boot properly when ethernet is unplugged.It is kind of blocked and the moment I plug in the ethernet, it work fine.I have attached the /var/log/messages, there is time gap of 1 min 30 sec, that is when i plugged in the ethernet.Can i anyone tell which service is blocking exactly.
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Mar 20, 2010
I ended up inheriting an IBM Intellistation Z Pro desktop with Red Hat 2.6.9-78.0.17.EL, that used to be part of a company network (hard IP, domain, etc). I'm trying to boot and connect to my home internet provider.With or without ethernet cable connected, the boot process seems to timeout on a number of steps (system logger, NFS Statd, automount5) and eventually get's stuck in NFS quotas.I started looking at /etc (in single user mode) and of course there are a bunch of files (hosts, resolv.conf, etc) with hard IPs, domains, etc.My questions are:- how hard is to change network setting to use soft IP and be able to connect to my provider
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Jul 11, 2010
I installed Ubuntu on external USB hard drive and while booting I did got option to log into windows XP, Ubuntu. Both operating systems ran fine. i.e. GRUB had overwritten MBR and I was able to dual boot. Main issue: I have installed Ubuntu in external hard-drive so that I can use Linux whenever I want other people who are using same computer can operate on WindowsXP. Sometimes my external hard drive gives problem if there is loose connection and so that oper people using computer do not face any problem I want to disconnect external USB HD whenever I am not using Linux. GRUB menu was pointing to external hardrive so disconnecting it meant my system wont boot!!I rewrote MBR using WindowsXP CD recovery mode. Now I am unable to boot from external USB hard disk( I thought I would be able to if I choose USB hard drive in BIOS option but it did not work it logged into WindowsXP by default).Is there any way I can change WindowsXP boot.ini file so that it also shows Ubuntu in external hard disk? Or is there any way.(I do not want GRUB way as then I would have to keep my external drive connected to log into windows - which I do not want).
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Oct 10, 2010
I just noticed this issue today but when I unplug my laptop from its adapter, the battery loses 44% of its battery immediately, Is there any way of solving this?
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Dec 16, 2010
I've been asked to look at a system which is running slowly. It's running hardy on an intel Q9400 quad core CPU system which should be a pretty fast machine.
The most obvious symptom of this problem is that the terminal takes about 10 seconds to open instead of the usual fraction of a second.
What I've discovered so far is that the system has 2 network ports one configured to access the LAN and the other to connect directly to another piece of hardware using a different subnet. If the LAN is not connected the system runs slowly and if it is connected it runs at normal speed. It also makes no difference whether or not the second network port is connected.
I've looked at the system monitor and can see no abnormal network traffic or processes using a lot of CPU resources.
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Jun 8, 2010
I have some years experience of linux & programming, but I don't really know whats "under the hood" in a PC. I decided to learn. I have two hard drive disks in one of my computers, so I decided to see if I could run it with only one. I removed the voltage from one of the hard drive disks and when I booted, of course the cumputer gave me the message: "Disk failure, insert system disk and restart". When I reconnected the HDD in my computer and booted once again, I got the same message.
This brings me to my first question: Why can't I start my computer as usual after unplugging and replugging one of my two hard drive disks? All cables remains the same, what has changed? The first question remained unanswered and I tried to install a OS on one of the HDDs when the other was disconnected. This worked fine and I set up a windows/debian dual boot. Perfect! But after reconnecting the disconnected HDD I tried to do the same thing (so I would install a new version of the system I started out with, a windows/debian dual boot). I formatted and installed windows on one of my HDDs again. It was bootable.
When I installed debian and let the installer set up Grub, I got the message "Missing operating system" when booting. I tried to install only linux (without windows) and I reached the same resault: after unplugging and replugging one of my 2 HDDs I can no longer boot a debian operating system, though the installation runs without a problem. What has happened? What do I need to do to be able to install a working debian system on this computer? (installing windows works fine) Has the settings of my BIOS changed when I unplugged?
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Dec 7, 2010
I installed ubuntu 10.10 and it seems everytime I unplug my laptop it freezes and the caps lock flashes. This happens pretty much every time. I installed fedora 14 had no problem with unplugging the charger but I didn't like it and couldn't get WiFi working right. So I installed ubuntu 10.10 hoping it would be gone and I have the same problem again. I have a AMD Athlon II Dual-Core Processor M300
(32-bit)
3GB DDR2 memory
320GB HDD (5400rpm)
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Oct 26, 2010
I accidentally unplugged my usb drive before unmounting it. In windows this is no big deal, so I'm used to that. However, I'm finding that in Kubuntu 10.04 this is a big deal. Now I can't mount any other drives unless I use the command line. Also, I can't unmount anything, even if I mount it on the command line.
What do i do? I know a reboot will fix this, but if it happens again i will be right back at this point. It should not take a full reboot just to unmount a drive. I have tried umount -l and umount -f and the terminal window just hangs.
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Jun 3, 2011
I received a new Cyberpower CP1000PFCLCD UPS today. I let it charge for about 6 hours.My server is a former desktop PC with the following specs:MSI MotherboardAMD Athlon XP 2000+ CPU768 MB DDR RAMDual 80 GB HDD running RAID 1 (Disk Mirroring)After shutting the server, router, and backup drive down and plugging in the UPS, I did the UNPLUG test where you unplug the UPS to see if everything stays on.My Router and Backup disk both stayed powered on, but the Server immediately rebooted.Does anybody have any ideas how I can fix the server rebooting problem? It should be staying on just as everything else.
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Oct 23, 2010
Can Ubuntu install and boot from external HD while still booting windows off internal HD?In an attempt to spread Ubuntu my friend wants to use ubuntu off an external HD and still have windows fully operational on the internal HD. Questions:1) Can Ubuntu install on external HD without tricky mounting methods and if so how doabout it?2) The bois have the capability to boot from usb, will grub work?
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Apr 21, 2010
I formatted the USB flash drive using Karmic's Format Disk utility (right-click on a volume, select "Format..."), and selected "Encrypted, compatible with Linux (FAT)" from the "Type" drop-down menu.It mounts correctly when I plug it in, and I can access the files just fine.When I unplug the Flash drive without using the 'Safely Remove Drive' option, the icon on my desktop changes its name to '2.0 GB Encrypted', instead of disappearing and unmounting like my unencrypted Flash drives do.
I would like to have encrypted Flash drive treated in the same way as my unencrypted Flash drives, which disappear and unmount when unplugged, even if the 'Remove Safely' menu option isn't used. What can I do to accomplish this?NOTES:When I plug the encrypted Flash drive in, the following line shows up in the output of 'mount'. 'secure' is the name I gave the disk during the format process:
Code:
/dev/mapper/devkit-disks-luks-uuid-302db16c-c6e2-4dd9-a259-436437c76475-uid1005 on /media/secure type vfat
[code]....
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Dec 30, 2010
I am using a Laptop with Fedora 12 and got a recent issue with the power management. I am not sure if this issue is Fedora-related, thereforeI have a (relatively) new main battery in my laptop and a (relatively) new Ac adapter (both not older than 6 months). Besides, a second battery is installed. Recently, I took out the second battery because I needed to use the CD rom drive. Then I put back the second battery (when the laptop was off, of corse).
After I switched the Laptop on again, everything works fine unless the laptop is thinking I am unplugging and plugging in the AC adapter every 3 seconds or so. I can see that behavior when clicking on the battery symbol, as the following terms change every few seconds:AC Adapter: Plugged inAC Adapter: Not Plugged inAlso I notice that the batteries are much slower charged than before when the laptop is operating, and even slower or halting when the laptop is powered off.
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Feb 23, 2010
Whenever I plug in my PSPgo via USB, it shows up in Nautilus as:
Code:
The first line is the system's onboard memory, and the second line is my 16 gig memory card. It used to mount as:
Code:
I *cannot* unmount the drive. The computer does not seem to be able to find the mount point to take it off from. When I unmount from Nautilus, it says:
Code:
Error unmounting:
If I just unplug the drive, the entry in /media remains as 1C[glitchy box thing][series of underscores] (see screenshot)
I tried looking at the drive in gparted, and it says:
Code:
Code:
Is my PSPgo becoming corrupt or something? That would be supremely unpleasant. I'd definitely like to avoid that, if at all possible.
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Jan 4, 2010
does anyone know that if i can boot from an external hard drive with "openSUSE" installed on it?
how about FireWire, will it work?
i'm trying to set up a triple boot for me newly bought iMac.
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Nov 6, 2009
I plug a USB device, it gets a /dev entry, e.g. sdf, i mount its filesystem, then some program opens a file on this filesystem. I unplug this device, its /dev entry disappears, but if i replug this device again, it gets another name - sdg.
How can i force the program to close the file so the filesystem is ready to be unmounted without using "lazy unmount" to release the device name, BUT so that the program doesn't crash after trying to make I/O to this file, and, of course, without having to kill the program?
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Jul 18, 2011
I have installed "open-SUSE 11.4" on a "500GB Free Agent External Hard Drive". I didn't have any problem in booting since last week that I booted it from my laptop. Also I did it before several times from then when I try to boot it e.g. from an "Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz" PC the time between loading INITRD and starting boot sequence messages lasts nearly 30 minutes!(i didn't actually measure it but it take a long time in the same order). after starting boot sequence which is showed on monitor everything looks normal. e.g copy of files would be done by speeds between 2MB/s to 30 MB/s depending on the targets.I used to use the external hard derive to boot from different laptops and PC's from start but I didn't have such a problem anytime.
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Jul 15, 2010
I installed Ubuntu 10.04 on my external HD from USB flash drive. But if i want to boot it, only black screen with blinking _ appears. Im total noob so maybe i made a mistake in installation, so here is how i did it (if i remeber correctly):
[Code]....
next day i tryed to boot from live USB like before, black screen appeard with text:
error: no such device (and many numbers)
grub rescue>
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Feb 18, 2011
is it possible that Ubuntu can affect my laptop booting from dvd. I used my external dvd drive to install ubuntu onto my ASUS N10JC, but now when i try to boot from the dvd drive it wont let me? I have boot device #1 set to dvd/cd rom and #2 set to Removable Device, everything else disabled. The drive boots on other computers including a Win7 and a gentoo. Could this be Ubuntu related or just something weird?
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Apr 15, 2010
After removing the Windows HDD from my laptop I installed Ubuntu to a new HDD that I installed in it - it works fine when used as an internal drive. But now I have put the Ubuntu disk in an external enclosure and replaced the original Windows HDD internally.
Now, if I change the BIOS boot priority to CD/DVD -> USB HDD -> Internal HDD will it be the case that I can boot Ubuntu when the external HDD is connected and Windows when not?
Also, if I boot to Unbuntu from the external HDD, will the internal Windows drive be left untouched? I'll be in pretty hot water at home if I damage that!
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Sep 11, 2010
I need a hand with mounting an external hd on boot with ubuntu server. I am aware of modifying the fstab, but that doesn't seem to be working. Here is an output:
Code:
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
[code]....
The problem is with the last line. Once booted into the server, I can mount using the following command:
Code:
sudo mount -t ntfs-3g /dev/sdb1 /media/externalHD
I know I can work around it by running a script with the previous command at startup, however I think I am simply doing something wrong. Is there a better way?
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Nov 13, 2010
I Installed Ubuntu 10.10 on an external USB Disk Drive - I had chosen to install the boot loader on this drive. When I tried to boot from this drive, I get the the following message:
error: unknown filesystem
after that I get "grub rescue>" prompt
The install was done on /dev/sdb2
I have also tried update-grub using ubuntu 10.04 that i have on my internal drive. It did recognize that I had a kernel on the external drive but still no luck booting. This time i get.
error: no such device d4a3cb16-37b6-416c-a3bc-4f8d03318e28
error: unknown file system
error: you need to load the kernel first
Note that the long device name is the same as the mount point when i do a "df"
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Jan 4, 2011
I need a hand with mounting an external hd on boot with ubuntu server. I am aware of modifying the fstab, but that doesn't seem to be working. Here is an output:
Code:
# /etc/fstab: static file system information.
#
[code]....
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Jan 20, 2011
I boot Ubuntu10.10 from live cd and installed to my external hdd (thats Apacer AC601) . Installation completed but i cant boot from external hdd. i didn't create custom partition layout myself , I choose the option "use entire hdd". Everythings fine with Fedora core 14.
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May 25, 2011
I have been trying for many days now to get ubuntu installed on western digital passport 1 TB USB external hd attached to my MacBook Pro (with intel Duo Core processor). I have installed the latest ubuntu 11.0.4 64-bit (needs to be 64-bit for work) on the external USB hd, and when I reboot rEFIt shows a new penguin icon. So, I selected that, and I see a screen with a penguin in the middle for a while, but then the screen turns black and just has a text error message that says "No bootable device -- insert boot disk and press any key". BTW, I checked that my Duo Core is definitely 64-bit. Also, ubuntu does run off the install CD. Even the wireless works and I can use firefox.
I have been reading lots of forums trying to find a solution. A couple that I have tried: 1) reboot and when in rEFIt, choose the sync option and resync the drives. I did that and now the penguin icon just launches a black screen with a different message about "no valid operating system" or something like that. 2) Another site said the key was to change where boot loader got installed, so during the installation, at some point near the end, there would be an "Advanced" button to click on, and in there I could set grub to install onto sdb, the location/name of my external USB hd. However, in the present version 11.0.4, there is no "Advanced" button on any of the install screens.
I really wish Mac just used a BIOS instead of this frustrating EFI. Do I need to edit or alter something somewhere? If so, exactly what?
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Jun 5, 2011
I just installed Ubuntu 10.04 on an external hard disk. It boots very very slow. I get a black screen for about 2 minutes, with the led of the HDD regularly blinking. The hard disk is OK, so it's type isn't the issue here. Is there anything I can do about it?
I can't (don't want to) install it on my main hard disk, since I already have Ubuntu 11.04 and Windows 7 installed there and it's getting a bit too crowded.
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Aug 5, 2010
i have a laptop that just recently had a hard drive fail so i removed it i have an160 gig external that i want to install Linux on so i got the live cd version of Ubuntu started it up pluged the external drive in whent through the install and set it to boot first but when it boots i get this it says missing modules cat?/proc/modules;is/dev and so on what did i do wrong
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