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Thread: Booting Ubuntu on external hard drive?

  1. #11
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    Re: Booting Ubuntu on external hard drive?

    @AutumnFox - first, let me say that oldfred is the expert, not me. You should give priority to his advice; I'm just trying to be of some limited assistance. second, I don't think you mentioned which Ubuntu you tried to Live-boot your old notebook with. Is it the same version you had on the old notebook, or are you trying a newer version? The reason I bring this up is that the newer versions of Ubuntu have changed their support for hardware, which could prevent you from booting the newer version on older hardware. Your best bet would try to Live-boot your old notebook with the same version of Ubuntu you originally had on your HDD before you give up on the old notebook entirely. Cheaper than another notebook to try anyway!

    http://releases.ubuntu.com/
    System76 Serval Pro 7: Ubuntu 14.04; Dell Latitude D800: Lubuntu 14.04

    Ubuntu problems? http://www.googlubuntu.com/

  2. #12
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    Re: Booting Ubuntu on external hard drive?

    Was filesystem format ext3, if so it looks like it did make some repairs. Can you now mount it and see files inside the ext3 partition?
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #13
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    Re: Booting Ubuntu on external hard drive?

    @MoebusNet
    Alrighty, but I do appreciate the help. ^^
    And that is true, it would be cheaper. I would love it if I could use my own laptop again too. The iso I chose for the Live-USB was 12.04, the only slight difference is that it's 64-bit. Should that necessarily make a difference?

    I don't want to give up on it just yet, especially if there is still the chance that I can get it working again. But not really knowing what the problem is exactly does make it difficult.


    @oldfred
    It wasn't mounting automatically. So I tried to mount it through the terminal. (Which I created a directory for it, but don't really know if the name in particular was important.)

    ubuntu@ubuntu:/media$ sudo mount -t ext3 /dev/sdc5 /media/Linux
    mount: wrong fs type, bad option, bad superblock on /dev/sdc5,
    missing codepage or helper program, or other error
    In some cases useful info is found in syslog - try
    dmesg | tail or so

  4. #14
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    Re: Booting Ubuntu on external hard drive?

    From liveCD is it still sdc5, with my system sometimes drives get moved around depending on how I boot.

    That type of error is often trying to read NTFS with ext3 or vice-versa or corruption that the e2fsck should have fixed, or partition is not now sdc5? Or was it ext4 and should not be ext3?
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  5. #15
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    Re: Booting Ubuntu on external hard drive?

    Quote Originally Posted by AutumnFox View Post
    @MoebusNet
    The iso I chose for the Live-USB was 12.04, the only slight difference is that it's 64-bit. Should that necessarily make a difference?
    This is just my opinion, but it seems like that since you had Ubuntu 12.04 32-bit running on your old computer before, your best chance for getting your old notebook to boot would be with the same version: Ubuntu 12.04 32-bit. Most newer computers with newer CPU's can run 64-bit OS's but some, like my 2002 Pentium-M notebook, can only run 32-bit OS's (mine originally came with WinXP 32-bit). Your borrowed notebook is new enough that it needs the 64-bit version as previously mentioned.
    System76 Serval Pro 7: Ubuntu 14.04; Dell Latitude D800: Lubuntu 14.04

    Ubuntu problems? http://www.googlubuntu.com/

  6. #16
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    Re: Booting Ubuntu on external hard drive?

    @oldfred

    I'm actually not using a LiveCD. I guess... I was supposed to, and not the USB? (Tried to use one when I burned the iso onto a disc, but it wouldn't boot.)
    Don't know if it was supposed to be ext4 or ext3. Sorry.
    From the Live-USB, I'm pretty sure that it is sdc5. Based on what fdisk -l says. (Which I had checked to be sure.)

    WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.


    Disk /dev/sda: 500.1 GB, 500107862016 bytes
    256 heads, 63 sectors/track, 60563 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x3d867707

    Device Boot Start End Blocks Id System
    /dev/sda1 1 976773167 488386583+ ee GPT
    Partition 1 does not start on physical sector boundary.

    Disk /dev/sdb: 8126 MB, 8126464000 bytes
    33 heads, 32 sectors/track, 15030 cylinders, total 15872000 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x9e38bb7b

    Device Boot Start End Blocks Id System
    /dev/sdb1 * 8064 15871999 7931968 c W95 FAT32 (LBA)

    Disk /dev/sdc: 250.1 GB, 250059348992 bytes
    255 heads, 63 sectors/track, 30401 cylinders, total 488397166 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00015d46

    Device Boot Start End Blocks Id System
    /dev/sdc1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
    /dev/sdc2 206848 256972799 128382976 7 HPFS/NTFS/exFAT
    /dev/sdc3 256974846 488396799 115710977 5 Extended
    /dev/sdc5 256974848 488396799 115710976 83 Linux


    @MoebusNet
    Ah, okay. Well, I'll definitely have to give it another try then!
    Let's hope that it will work, when I do try again. =)

  7. #17
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    Re: Booting Ubuntu on external hard drive?

    It seems you are still on the Windows 8 UEFI system?

    UEFI complicates everything and is not really compatible with MBR(msdos) systems. A UEFI system will only boot with a 64 bit system with secure boot off usually. You can convert a UEFI system to BIOS but that is not what you want.
    You do have to be careful to change UEFI to secure boot off, fast boot off in Windows/UEFI and boot a live installer in BIOS mode and then be careful not to modify anything else in the UEFI sda drive. Then undo those settings when done or Windows 8 may not work.
    Would be a lot easier if drive was in a BIOS based system.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  8. #18
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    Re: Booting Ubuntu on external hard drive?

    Yeah, still am. Though at this point, it's quite tempting to switch over to another computer that doesn't have UEFI. And hopefully make things much more simpler.
    Goodness, that stuff sounds a little complicated... And almost not worth risking this laptop.

    My other options, are a slightly older Windows Vista 32-bit laptop. And a desktop that also has Windows 7, but is 64-bit.

    I'm actually wondering now if it would be a good idea to swap out the hard drive in the Vista laptop and replacing it with mine temporarily.

  9. #19
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    Re: Booting Ubuntu on external hard drive?

    I think your simplest option to recover the files on your external HDD would be to boot the Windows Vista laptop (because it boots via BIOS not UEFI) with Ubuntu 12.04 and connect the external HDD to recover the data files. Once the data files are recovered, all else is at your leisure.
    System76 Serval Pro 7: Ubuntu 14.04; Dell Latitude D800: Lubuntu 14.04

    Ubuntu problems? http://www.googlubuntu.com/

  10. #20
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    Re: Booting Ubuntu on external hard drive?

    It does sound like the much simpler option, so I'll be going with using the Vista laptop for my hard drive instead of Windows 8 for the time being. Though I still need to know what I should do now about getting my Ubuntu partition mounted.

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