Ubuntu :: External Harddrive Not Booting / Prevent This From Happening?
Mar 21, 2010
I installed Ubuntu on a portable harddrive so that I can use it independently of my computer (when I visit my parents or my g/f). I performed the installation using a bootable Ubuntu thumbdrive, everything went fine but when I unplugged the thumbdrive and rebooted I got a kernel panic. I was able to boot into Ubuntu on my external drive once (I think it might have been due to reordering boot order in BIOS). My guess is that the kernel panic occurs due to the drive letter changing (sdb -> sdc) depending on which external devices are plugged in, but I'm not sure how to make sure that's the case. And if it is, how would I prevent this from happening?
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May 6, 2010
I have a Seagate Expansion external drive.
It won't load as it is NTFS. Am I okay to reformat it using GParted? I'm unable to get the drive up in a window, but GParted can see it.
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Jan 26, 2011
I've a new USB 3.0 Hub card and plugged it into pcie1x. The chipset on this controller is a NEC uPD720200. I attached a HD to it but it wasn't recognized (but Windows does!).
I'm runnig archlinux (all updates) which shows the card/harddrive as (lsusb) Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub fdisk doesn't show the device.
How to access the HD?
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Apr 15, 2010
How do you format an external harddrive to ext4 or ntfs?
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Apr 11, 2011
1. Is this possible without loosing the data on the external harddrive?
2. How is it done?
3. WIll I be able to read and write on both Ubuntu and OS X 10.6? (like I can now)
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Jul 26, 2011
I have a iBook G3 that dosnt want to boot up at all. It makes the ding then a grey screen pops up. How do I install Ubuntu onto my iBook G3 with a external USB harddrive? is there a way?
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Jun 29, 2011
I want to access files on my external harddrive through GNOME, beyond plugging it into my computer via USB I have no idea what to do next..I think it has something to do with a mount point or the 'mount' command...to summarise, my question is how can I access extern. HardD through GNOME?
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Jan 20, 2010
i have two centos systems one automounts the external usb hard drive and other doesn't what do you think could be missing in the system that is not automounting the external usb drive.
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Mar 5, 2011
I have a single boot ubuntu installation (that I like very much) that I want to migrate to a larger hard drive that has an XP installation on it so that I can dual boot on one hard drive. I've already partitioned it.
So:
Hard drive A: has Ubuntu on it
Hard drive B: has two partitions, one XP the other one waiting for Ubuntu.
I'd rather not just install Ubuntu all over again as it was annoying to install the wireless dongle. among all the other secondary installations and tweaks that have been done.
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Nov 20, 2010
This community is very helpful to me.i have one external usb harddisk but its not getting detected any where.i have some important data.i want to recover that data.so could any one telme how to recover data from dead usb external hard drive.any help appreciated please helpme.no hardware is detecting but one small green light is coming.
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Nov 14, 2009
i have an external harddrive which i encrypted scince opensuse 10.2 with luks. Now i installed opensuse 11.2 its impossible to me to mount this drive correctly.
the harddrive was recocnized in my former opensuse 11.0 correctly as luks encrypted and during installation yast installed the kernel module and encrypted the harddrive so that i regulay could mount it on boot by giving the password for that harddrive. Scince opensuse 11.2 however yast thinks this is an dmcrypted partitoon and tries to unlock the harddrive using dmcrypt which of course fails.
does somebody know how i can encrypt and mount the externeal drive automaticly?
i have made a backup of /etc before i made a new installation of opensuse 11.2. is the possible to use the old fstab entries for that after installing luks?
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Nov 20, 2010
First of all I have to say I love Fedora, just switched from openSuSE after the system was kinda sluggish the last 2 or 3 versions. But one thing I always liked was the fact that when the system went into suspend my external harddrive spun down and after resuming it spun up again as soon as I tried to access a file. Now in Fedora the harddrive continues spinning and is unavailable after resuming. There is nothing about the harddrive in dmesg, not during suspending and not even when i unplug it after resuming.
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Aug 26, 2010
I have a Hitachi SimpleDrive (LS-1000-EMEA) it has an "Auto-sleep" function which I believe is controlled by the enclosure itself.The problem I'm having is that when the drive goes to sleep Ubuntu does not seem to be able to wake it up again. I am running Karmic 9.10 as a stripped down install with XBMC as a front-end. I cannot access the drive at all when it does this.
I'm not sure if the problem is that the drive is formatted as NTFS. I notice that when the drive is connected to my Mac or PC it resumes no problem (with a slight delay as the drive gets out of standby) but with Ubuntu it just seems to stop responding. When I reboot the drive is not mounted by Ubuntu. Physically, the blue LED indicator on the drive is frozen (i.e. lit-up) rather than flashing as it normally would. I have to actually unplug (from the mains) and plug it back in for it to work.I have tried using sdparm, but as I say I think the sleep function is controlled by the enclosure and thus sdparm gives me no standby options.
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Mar 14, 2010
How can I configure Postfix to reject connections coming from anywhere except the local machine?
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Jun 3, 2011
I added an sshfs entry fto /etc/fstab in a fresh FC15 build ona laptop and this seems to work
sshfs#user@server:/opt/apache-tomcat-7.0.2/webapps/ /mnt/server/opt/apache-tomcat-7.0.2/webapps/ fuse uid=500,gid=500,allow_other 0 0
I can mount and umount /mnt/server/opt/apache-tomcat-7.0.2/webapps/ without problems.
But after a reboot the systme it hangs when loading, I can't copy paste the messages but it said something about boot dependencies, and it was apparent the error was loading fstab. I had to Ctrl D or enter root password to get a recovery system, after commenting out the sshfs line (and some nfs lines too) from /etc/fstab after another reboot I was in.
sshfs used to be permitted in /etc/fstab it seems , I've not used it before, could this be a FC15 issue? I have seen other threads about FC15 and nfs boot issues presumably to do with the new booting mechanism.
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Oct 11, 2010
In the Ubuntu "Places" menu my external harddrive icon always shows up with a "broken" icon or the grey screen with lower righthand corner turned. Changing the icon in Nautilus doesn't affect it.
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Mar 9, 2011
i've worked with Linux for a while now, but never in a double boot kind of way (except using wubi), and i'm still kind of a newby.i have 2 harddrivesfirst one has only 1 partition; Windows XPsecond one has 1 empty partition, simple storageand another partition where i installed fedora core, and GRUB is also located on this harddrive.I changed harddrive priority to my second harddrive, result:GRUB comes up, no problem, but when I try to boot windows, it tells mentldr is missing ctrl alt del to continueso i changed the harddisk priority back to the way it was, where the first drive containing windows is first priority... but then, no GRUB.i've tried editing the grub conf,i've tried fixboot/fixmbrtl;dr:no ntdlr when linux harddrive is main priorityno grub when windows harddrive is main priority
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Jan 29, 2010
I prepared my external harddrive to become bootable correctly, xcopied ubuntu iso onto it, and restarted my computer with the usb mode as the primary boot sequence and I got the error of no BOOTMGR?
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Jan 21, 2010
I was given an external USB drive which has Windows XP Pro on the first partition. I can mount and access the partition with no problem. When I run update-grub, it finds the XP partition and creates a menu entry for it. But when I select it from the Grub menu, I get an error that the device is not found.
Results of sudo fdisk -l
Code:
Disk /dev/sda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00086c27
[Code]....
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Jun 6, 2010
I been meaning to install some linux distro on my external hdd to enjoy the renowned desktop experience, so far I installed sabayon first but it wasn't working very sharply and a friend of mine recommended me to just install ubuntu. Anyhow, since the first time I installed sabayon I could not boot vista when the external HDD is not plugged in. I get a grub rescue command prompt. I don't have a vista cd because my laptop came with the whole recovery function installed on a vista partition. I can boot that from the grub menu, from there I did a boot system restore, but I still get the same error. I'd like to be able to boot vista without having the external HDD on of course.
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Oct 18, 2010
I suspect this is not new but I just can't find where it was treated. Maybe someone can give me a good lead.I just want to prevent certain users from accessing CD/DVD drives and all external drives. They should be able to mount their home directories and move around within the OS but they shouldn't be able to move data away from the PC. Any Clues?
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Apr 5, 2010
installed Ubuntu 9.10 in an internal SATA drive and used it for quite a while, but yesterday my laptop's graphics card decided to die, and it looks like it will be a full month until I get replacement m/b. Therefore, I bought an external USB SATA Hub for my laptop's drive, but I can't seem to be able to boot ubuntu from this drive. I'm trying to boot with this external usb hub attached to an old P4 machine with USB booting enabled.I get till the grub screen, but as soon as the message "Grub loading" appears, I get a message saying:error: no such partitionand I get a prompt as follows:grub-rescue>I guess grub is trying to boot to a different device name... It's weird, I thought Ubuntu should boot irregardless of which interface I use, be it SATA or USB.
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Oct 25, 2010
First time user of Ubuntu and first post on this forum. So i installed Ubuntu on an external hard drive, it took me a couple days. I followed the web sights direction and when i saw the option for windows or Ubuntu, clicked Ubuntu and that brought me to this:
GNU GRUB Version 1.98+2010...
Minimal BASH-like line editing is suported. For the first word, TAB list possible command completion. Anywhere else TAB list possible device or file completions.
GRUB>
No tricksters Im having a profetional check this stuff before i use any of it
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May 19, 2015
Yesterday I tried to install some packages via synaptic manager and it rendered my system without GUI and without network so apt-get does not work to fix it.
I made a clone of my hard disk with dd a month ago and have daily backups of my data.
My hard disk in the laptop is a SSD. (sda) the external hard disk is an laptop hard disk connected via a USB IDE connector (sdb)
today my system booted from the sdb hard disk. Which was unexpected. I am updating the data on sdb now. the problem I have now is that I can not access sda. How am I supposed to mount it ? My plan was to overwrite sda with sdb
after shutting down, disconnection sdb, rebooting and connecting sdb again I tried
dd if=/dev/sdb of=/dev/sda bs=4096 conv=noerror, sync
then I get the message dd invalid conversion
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Aug 17, 2010
My old GoBook IX250 won't provide option of booting from any external sources (hdd, flash drive, etc.), but I would think there should be some editing done to end of the boot fs on internal hard drive which would instruct the boot loader to allow choice of OS on external hard drive for booting -- have no idea just what should write there to obtain this result;
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Mar 29, 2009
i want to boot a live version of linux from as an external hdd.. wat are the procedures to be carried out for tat?..
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Aug 31, 2009
I've spent two whole days trying to get this to work and I believe I may be on the verge of insanity.
In any event, my goal is to have Slackware 13.0 be installed on an external USB drive and for any computer I use to be able to boot from that USB drive and load Linux.
I used fdisk to completely repartition the external hard drive making the first partition for '/' and toggling the boot flag on it.
I installed lilo on the USB drive, rebooted, disabled the internal hard drive, and instructed the computer to boot from USB.
"No boot options available."
I assumed there was a problem with the MBR. I booted into Slackware setup, performed a lilo -mbr on the external hard drive. Rebooted.
Still "No boot options available."
What could possibly be wrong? Yes, my computer does support booting from USB.
Do all hard drives have MBR's? Does fdisk overwrite the MBR when you partition it? If it does, do I have to ignore the first 1MB when I partition my disk so that lilo can boot from it? I remember having to do similar with 'parted' when I had to format a flash drive for being bootable.
The other problem I have is that the /dev/sda can change. Just because a USB drive is /dev/sda today doesn't mean it won't be /dev/sdb tomorrow. Is it even possible to have a boot loader load correctly, considering that you hard code the device name into the /etc/lilo.conf? I was thinking of using grub to manually choose where to boot at load, but that doesn't seem to be an option as grub looks like (i may be mistaken) it tries to find a root and then looks for the grub config info in that drive. I also don't think that grub loads USB drivers at runtime, nor do I think lilo does either, which makes me wonder even more if it's remotely possible.
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Jan 29, 2011
I'm not exactly a computer pro. I had copied Ubuntu netbook on to a USB with the program given at Ubuntu.com. I plugged it in and booted it via F12 on my Alienware M17x and I chose to try it. When I selected to try it, it wouldn't work at all and I sat there for about an hour. I turned the laptop off, and now it says I'm "Missing" the OS. Which means my Windows 7 is gone.
My friend had told me to do something with Gparted, but it didn't help. He did say that my files could possibly still be there (which would be AMAZINGLY awesome. I just wish I could get things back to the way they were yesterday. I need to know what is wrong with the partitions though, since I think that the errors are related to the partitions. It is a Solid state drive. My priorities are:
1. Save my files (if they are there still) to an external HD
2. Re-install Windows 7 (if needed)
3. Install Linux alongside Win7
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Aug 12, 2010
would putting ubuntu on an external hard drive and booting it from refit work? and would i was starting up my imac 11,2 my ipod was bootable for some reason?
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Sep 14, 2014
Debian not booting from USB external SSD drive. Linux 3.2.0-4-686-pae been installed on new SSD, attached to Windows 7 laptop. When I select "USB storage" in Windows boot order menu and try to boot, Linux not booting, every time loading Windows. Is it ever possible to boot linux with such setup?
[URL] .....
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