General :: IMac Boot From Partition On External Drive?

Apr 3, 2011

I have the following "setup:"

iMac (no internal drive/dead) --------- (Firewire) ------- [[MAC OS X]]
|
|
|[code]...

I routinely use the firewire drive to boot MAC OS X.However, I would like to boot from the linux partition of the USB drive. This linux partition had linux installed on it from a live cd, and during that process, I told the installer to install GRUB on the usb drive (which happened to be /dev/sdd).My question is, how do I get this disk to show up during the iMac option-boot? Currently, only the firewire MAC OS X option shows up. I have read about rEFIT, but that appears to install it to the Mac OS X disk (would that still work?)...Also mentioned was installing rEFIT to the internal EFI system partition, but I don't know if that is wise.

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Hardware :: Create Boot CD For Booting External Disks On An Apple IMac?

Apr 2, 2010

Is it possible to create a boot CD to boot external volumes on an Apple iMac 7.1 (which has an older firmware version and cannot boot external disks, unlike the MacBook Pro 5.1 which can do it, at least with grub-legacy which is all I'll ever use until EFI boot becomes available). There is some promising stuff on www.pendrivelinux.com, and I'll try it, but the instructions are for Windows, and I am not sure how to translate the menu.lst entry to linux (I suppose it would have to be entered in the "automagic" section). Of course I don't want to create a bootable flash drive but to use my external volumes that already boot on the MacBook Pro without altering them, except for installing the ATI video driver (but I have no problem booting in low graphics mode).

Until karmic there was a trick to make the iMac mistake the external volume for an internal one (the root partition had to have the same UUID as the internal root partition), but this does not seem to work for lucid. Anyway this UUID trick is dirty and causes problems when you want to edit the internal partition (which is the point of the external boot - you get a customized maintenance environment that boots much faster than the CD).

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General :: Resize Partition On External Drive

Mar 21, 2009

Computer hardware is not my bag. I accidentally installed ubuntu on external F drive, thinking it was C drive, unaware that ubuntu installs on drive with most available space. Installation involved partitioning the drive in about half. So, before I install it on C drive, I want to restore my F drive. I deleted partition using XP Disk Management tool and tried to use gParted on Parted Magic live boot cd to resize remaining partition that contains my data. But it doesn't seem able to expand the good partition to reclaim the 'unallocated' space. How do I accomplish this? Must I backup and reformat?

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General :: Sharing An Ext3/ext4 Partition On External Drive?

Aug 30, 2011

is there a way of sharing an ext3/ext4 formatted partition on an external USB drive between different users (uids) on different Linux machines without creating a group for this purpose, setting the group ownership of the partition to this group and adding each respective user to the group on every machine?This would mean that I need to have root privileges on every machine... which I may not have in some cases.I'm using the partition to store the code I'm developing on Linux and I would like the option to be safe... if possible.I could use a vfat partition but then I have no control of the rw rights + I cannot develop directly in the dir: I would always have to tar.gz the directory, extract, work, tar.gz, copy to the external drive.

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General :: Multiple Distros - One Data Partition - External Drive

Apr 8, 2010

I've got an external hard drive with one large data partition on it. I also have four computers to connect it to (individually, not at the same time). Three machines are running Slackware and one is running Ubuntu 9.10. I need to be able to just plug the drive into whichever machine, mount it (preferably to the same location each time) and not have to worry about user permissions and such. Do I just chmod 777 all the files and folders or is there a better method for different 'users' to access the same partition? And how about mounting to the same location each time?

Now the second part of my question I'm pretty sure I'm not able to do but just in case..... is there any way to encrypt the information safely and make it compatible with a Windows XP machine?

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General :: Missing Partition After Installing Ubuntu On External Drive?

Feb 3, 2011

I am keen to start using Ubuntu and have installed it on one of 4 partitions on my new 1 TB external HD. I got to the reboot stage where I was expecting a new boot screen where I could decide to use either XP or Ubuntu. But there is no mention of Ubuntu just XP and the volume I installed Ubuntu on has disappeared. I can find the other 3 volumes on My Computer.

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General :: Boot From A Separate External Partition?

Nov 14, 2010

I have a 320gb USB hard drive, one partition for my files, one for playing Wii games, and one which I would like to use for an Ubuntu instillation. To do this, I partitioned my disk accordingly using Windows, then booted from the Ubuntu CD to install the OS to my external hard drive partition. It asked me where I wanted to install the boot loader, so I selected the hard drive itself, rather than the specific partition, reasoning that it would scan the hard drive for a boot record. However, when I booted it (with USB boot selected) it simply said "No Operating System found, replace system disk and press enter" or something similar.

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Ubuntu :: Can't Partition The External Drive

Jul 8, 2010

I'm trying to format/repartition a 250 gig external Seagate drive. I get the following error:

Code:

Error creating partition: helper exited with exit code 1: In part_add_partition: device_file=/dev/sdc, start=32256, size=250056705024, type=0x83
Entering MS-DOS parser (offset=0, size=250059350016)
MSDOS_MAGIC found

[code]....

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Ubuntu :: Remove External Hard Drive Partition?

Jan 15, 2010

I just bought a new external 1 TB HP hard drive that came with two partitions.One larger for storage and another 700 MB partition called hplauncher as a sub-file of what shows as a CD drive called HP virtual CD 4607 which held files for windows automatic back up. Which I don't need.Both the CD and launcher drives do not allow for deletion or formatting. The larger drive does.I am viewing it in the Palimpsest Disk Utility that cam with my Ubuntu 9.10 clean install.

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Ubuntu :: Partition Won't Mount On External Hard Drive

Feb 14, 2011

Been using a SeaGate FreeAgent external drive for past 6 months. Suddenly the ext2 partition (/dev/sdb2) won't mount, while the NTFS partition (/dev/sdb1) does.I've been allowing automount, no entry in /etc/ fstab.When the NTSF partition mounts there appears an entry

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Software :: Deleted Partition Now External Drive Not Mounting

Mar 27, 2010

My brother has an external hard drive that has some personal data on it that he doesn't want to lose. He was reinstalling windows on his machine and deleted both the partition on his internal drive and on his external drive. He installed windows on his internal drive only though. I want to be able to reaccess that data from the drive. All the data should still be on the drive since so write cycles have been done to overwrite it.

I guess deleting the partition removed the partition table or something so the drive doesnt mount. I would prefer to use linux (but windows is ok too) and a free as in beer tool preferably. there are normal recovery tools (I have used get data back before) that scan for any files anywhere that has been overwritten but I don't really need things that have been overwritten; just the data that is still there but not availible because it cant be mounted.

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General :: Dual Boot Instructions For IMac?

Sep 28, 2010

What is the best guide to use for me to install Ubuntu 10.04 on my iMac so that I can dual boot into either Ubuntu or OS 10.6.4?

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OpenSUSE Install :: New Partition On External Drive - Permissions: Root Drwxr-xr-x?

Apr 21, 2010

I tried two times to make an new partition (after the FAT partition on it) on my external hard drive with YaST>Partitioner.Fist I had tried ext3 now I have ext2 on it.Both times the partition (or the corresponding folder in /media) was only writeable to the superuser/root but not to a normal user (readable to the normal user). Root is the owner.The FAT-Partition on the same external drive is owned by the normal user who was logged in as I plugged the USB-cable in.I can unmount both partitions als normal user in natilus.1. Can I start nautilus as root to change the permissions?2. What have I done wrong? Should I use an SuSE Live-CD or an CD with an special partitioning-program instead?ng X20) openSuse 11.1 and Gnome 2.24.1 (mostly, 1 account is using KDE) and Kernel Linux 2.6.27.45-01.1-pae. "/home" is on an separated partition (as part of an extended partition). I have also 2 NTFS partitions for Windows XP (System and Data), and a FAT, a root (/) and a swarp partition.

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Ubuntu Installation :: Onto A External Hard Drive - Partition It And Make It Work

Jul 14, 2010

What im trying to do is install ubuntu on to an external hard drive, partition it and make it work. ive got a problem, as i have 200GB of games and other things already on that drive, before you say "copy it to another drive and then back" i cant, i dont have any other drives apart from my internal which has only got 20 gig left

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Software :: Change Default Noexec To Exec For All Partition In An External Drive

Jan 15, 2010

Whenever I plug an external harddrive to a CentOS system,all partitions mounted will have noexec that makes my binaries or script files not executable.

Quote:

[root@centos52-64-dell ~]# mount
/dev/sda3 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)

[code]....

I have to remount it using, e.g.,

mount -o remount,exec /dev/sdb1

But I am sick and tired of doing it everyday. What I can I do ?I don't want to use /etc/fstab to solve this problem becauseit will cause booting problem (curable though) when the hard drive is not around.

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OpenSUSE Install :: Boot From An External Drive / Set Up A Triple Boot?

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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OpenSUSE Hardware :: External SATA Drive Not Recognized / Cant Recreate The Partition On Server?

May 2, 2010

OpenSUSE 11.2 server, Gigabyte GA-MA790X-UD4P sda for system, 3 ext4 partitions, working fine.sdb promise RAID1 for data, 1 ext4 partition, working fine.sdc is an eSATA docking station for data backup, 1 encrypted ext4 partition -- here lies the problem.

This configuration has been functional for months until I decided to add two more external drives (sdc) to rotate through backups. I had difficulty with encyption on the first new drive and eventually decided to start over. Using the gui Yast Expert Partitioner, I deleted the single partition. That began a real nightmare...

Since deleting the partition, the system detects drives inserted in the docking station, but does not report them (including a different fully functional drive and a brand new unused drive). I have tested all drives on other computers and they function perfectly. I have rebooted the system several times while troubleshooting this issue.

Could not recreate the partition on server (since it does not recognize the drive), so I used Gparted on another computer - it all went without a hitch, formatted ext4. But when I placed the drive in the dock, the drive still was detected but not recognized.

Details:

BIOS lists the eSATA drive

Entering Yast Expert Partitioner, error message follows:

The partitioning on disk /dev/sdc is not readable by the partitioning tool parted, which is used to change the partition table.

You can use the partitions on disk /dev/sdc as they are. You can format them and assign mount points to them, but you cannot add, edit, resize, or remove partitions from that disk with this tool.

Yast partitioner shows drives: sda, sda1, sda2, sda3, sdb, sdb1 sbc is not listed.

# fdisk sdc results in: Unable to open sdc
# dmesg | grep tail reports:
[48442.370779] sd 0:0:0:0: [sdc] Unhandled error code
[48442.370793] sd 0:0:0:0: [sdc] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
code....

So how did partition deletion cause this issue, and how do I correct the problem? It is possible that my difficulties encrypting the first new drive are related (it's not my first time doing it successfully). It seems the problem is in the Kernel or configuration. I have invested many hours in forums and on google - tried dozens of possible fixes. I'm beginning to suspect system corruption or a bug, however all other system functions are working perfectly.

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Ubuntu / Apple :: Access Files From External Ext4 Hard Drive Partition?

May 2, 2010

Recently my laptop broke down and wont start up. I'm currently trying to recover my files to my mac with an IDE to USB cable. It recognized my windows partition fine and I was able to get all my files off of that, but the majority of my stuff is on the ext4 partition that I have on it. Does anyone know how to access the ubuntu partition of this hard drive from my mac?

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Ubuntu :: Load Windows Partition Encase The External Hard Drive Fails?

May 14, 2010

I'm new to the ubuntu forums as well as ubuntu. I'm excited to learn more about linux itself as well as ubuntu. I got ubuntu 10.04 running on my toshiba L505D laptop by disabling acpi in the boot commands. My first question is how do i do this permanently, is this bad, and would updating fix the issue? If so how would I go about updating.

Secondly, when the external hard drive I installed ubuntu on is not plugged in to the laptop, GRUB rescue comes up. I kind of like this because it provides a level of hardware security. I would however like to know how to load my windows partition encase the external hard drive fails.

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Ubuntu Security :: Ecrypted External Hard Drive Partition Won't Mount Or Unmount?

Nov 15, 2010

I've been running Linux for a year on our family computers (one desktop, one laptop and two netbooks). I've run into a problem with the encrypted ext4 partition (270GB) on a LaCie external hard drive which also has a NTFS partition (50GB) which is not encrypted . First two times I tried using the encrypted ext4 partition (from two different computers) it worked fine but now I can't access it at all. I can still access the NTFS partition.Encrypted external hard drive partition will unlock but won't mount (or unmount). The computer says "Opening 320GB Hard Disk" but after a minute says, "Unable to mount location. DBus error org.freedesktop.DBus.Error.NoReply"Disk utility (GUI for gparted I believe) states that the encrypted partition (/dev/sdb1) is unlocked and the underlying partition (/dev/dm-0) is not mounted but it has a "busy circle sign" on it that will not turn off. The NTFS partition on the same drive mounts and accesses normally.

But if I try to unmount the NTFS partition, it says: "Unable to stop drive. One or more partitions are busy on /dev/sdb"If I try to shut down the computer, it is unable to shut down because (I assume) it can't shut down that drive either. So I have to just turn off the computer.fdisk states that /dev/dm-0 doesn't have a valid partition table [full output attached]fsck suggests: "Filesystem mounted or opened exclusively by another program?"ps axuf shows some processes running on /dev/dm-0 but killinghem doesn't release the drive either. [full output attached]I checked /etc/blkid.tab (suggested in one vaguely related thread) and there's no actual file only a broken link pointing to /dev/.blkid.tab (which doesn't exist). I tried deleting this link and rebooting but that didn't change anything.when I finally gave up my data as lost, I tried to format the partition (using Disk Utility) and it refused saying, "One or more block devices are holding /dev/sdb"

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Installation :: Boot From A Separate External Partition?

Nov 14, 2010

I have a 320gb USB hard drive, one partition for my files, one for playing Wii games, and one which I would like to use for an Ubuntu instillation.o do this, I partitioned my disk accordingly using Windows, then booted from the Ubuntu CD to install the OS to my external hard drive partition. It asked me where I wanted to install the boot loader, so I selected the hard drive itself, rather than the specific partition, reasoning that it would scan the hard drive for a boot record.However, when I booted it (with USB boot selected) it simply said "No Operating System found, replace system disk and press en

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Ubuntu Installation :: Boot From A Separate External Partition?

Nov 14, 2010

I have a 320gb USB hard drive, one partition for my files, one for playing Wii games, and one which I would like to use for an Ubuntu instillation.

To do this, I partitioned my disk accordingly using Windows, then booted from the Ubuntu CD to install the OS to my external hard drive partition. It asked me where I wanted to install the boot loader, so I selected the hard drive itself, rather than the specific partition, reasoning that it would scan the hard drive for a boot record.

However, when I booted it (with USB boot selected) it simply said "No Operating System found, replace system disk and press enter" or something similar.

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Ubuntu Installation :: Boot Eee From External Cd Drive?

Mar 13, 2010

I was wondering wether it is possible to boot an eee 901 from an external usb cd drive? (for those who are unfamiliar with the eee, it has no internal cd drive) The cd drive is not listed in the bios boot menu.

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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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CentOS 5 :: Installed 5.3 On An External USB Drive But Can't Boot From It

Oct 5, 2009

I recently installed CentOS 5.3 (from DVD media) on a Seagate 320GB external USB drive; this drive is connected to an Intel-based desktop computer (Intel D945GNT motherboard) with two internal SATA drives (both NTFS, as I'm running Windows XP SP3 as my primary OS). The install found the USB drive fine, and I manually configured my partitions; I had the install place the boot loader in the first sector of the boot partition of the external USB drive. I had set my BIOS to boot from the USB drive first; after a reboot, nothing happened...no GRUB menu, nada.

After some research, I had found an article discussing the need to rebuild the initrd for USB drive support. So, I booted the computer from the CentOS DVD, then went into 'linux rescue' mode; once I was at a command prompt, I navigated to the /boot directory and executed the following command:

mkinitrd --with-usb --preload=ehci-hcd --preload=usb-storage --preload=scsi_mod --preload=sd_mod ./usbinitrd-2.6.18-128.el5 2.6.18-128.el5

After the new "usbinitrd" was created, I edited grub.conf to reflect the new image, then attempted the reboot again from the USB drive. Still no GRUB menu.

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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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Ubuntu Installation :: Dual Boot Xp With An External Drive?

Jun 30, 2010

The thing is i want to have windows xp on my internal drive and ubuntu on the external. Not very hard but i want it so that i can choose what to boot when i start my computer and i also want to store other things then ubuntu on my external drive so i can use it in xp also

The reason i want ubuntu for is to use it while watching movies or chatting osv and use xp for games and my animation programs since they tend to be quite hard to get to work on ubuntu.

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Ubuntu Installation :: Cannot Boot Without External Drive Plugged In

Jan 16, 2011

I have installed ubuntu 10.10 on and external usb drive and now my computer which runs XP will not boot unless the external drive is connected and on. Can I by pass this situation or do I have to uninstall ubuntu altogether and start over?

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