General :: Ubuntu Only Boots With USB Plugged In?
Jul 17, 2011
I installed Ubuntu via USB drive onto my hard drive. If I boot the PC without the usb drive I used, Ubuntu will not load. After booting I can unplug without any consequences.
I looked on the hard drive and there is a boot folder. On the USB drive, this is the tree contents:
/media/disk$ tree
.
|-- adtext.cfg
|-- boot.cat
|-- f10.txt
|-- f1.txt
[Code].....
Am I correct in my assumption that the boot aspect is associated to the USB drive? If so, how do I get it to boot without the USB? I'm guessing copying into some location and modifying grub?
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Nov 24, 2010
I've got a desktop 10.04 LTS installation working nicely, and leave it logged in processing things for me. I log in remotely and don't always leave the screen plugged into the computer. Trouble is when I reboot it without the screen plugged in it will sometimes boot to a command prompt.If I turn it off, plug in the screen and turn it on again I get into the GUI as normal. I can't see any settings to change this behavior - what am I missing?
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Oct 29, 2010
my desktop pc is acting very strange. cold boots often take up to 10 attempts before the computer successfully boots. after the 1st successful boot, i can expect 1-3 "glitches". here's what happens:
the first few cold boots fail at various points during the boot process. there appears to be no pattern to it. when it happens, the machine is completely locked up. it responds to nothing, except holding in the power switch for 5 seconds. i'll go through this procedure several times.
finally, it will boot all the way to a desktop. from there, once i log it, i can expect it to lock up completely, usually once or twice. and then, finally, the screen will go blank and it will suddenly be back at the login screen.
usually, once i log in that last time, it's at least usable, although hardly stable. watching flash video seems to cause a complete lockup, with the sound looping. it doesn't matter where the content is coming from (videos or similar) nor does it matter which browser i'm using (firefox or chrome). i've stopped visiting videos-type sites in the meantime.
this installation has always been a tad bit screwy. 99% of the time, firefox fails to shut down properly, resulting in a message letting me know that a crash was detected. earlier today, i was alerted to 3 kernel crashes simultaneously.
right now, i'm using the pc, as normal. the random nature of the problems would lead me to believe it was hardware-related, specifically something like memory (ram). however, i installed memtest86+ and ran it. i walked away for 4+ hours. came back, it was running, no errors were found. i stopped the test and booted, trouble-free.
the pc seems to be stable enough for a backup, but this does have me concerned...obviously. i'm debating wiping the drive clean and installing f13, just as a test. if it's screwy as well, it would have to be hardware-related, wouldn't you think??
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Aug 21, 2009
I know in windows xp there is a registry key and an entry in the Plug and Play log file as well as maybe an event id, that is produced when a device (say usb) is plugged in. My question is, besides /var/log/ (messages?) Is there any other location that that information is stored in?
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Apr 3, 2011
I was building LFS on a pendrive this morning when it crashed in the middle of making gcc. I rebooted without my pendrive and I never got into the desktop. Instead, I get a visually pleasing terminal telling me that it couldn't find and that the only way to reboot would be to press CTRL+D. I'm then given a command line and that's that.
Rebooting with the key inside works perfectly.
I reformatted my key and now there's nothing on it. I feel like somewhere somehow I added an entry to the boot process of my system and now I have to remove it. Never dealt with something like this before
Fstab:
/dev/disk/by-id/ata-WDC_WD2500AAJS-60Z0A0_WD-WCAV2M336077-part1 swap swap defaults 0 0
/dev/disk/by-id/ata-WDC_WD2500AAJS-60Z0A0_WD-WCAV2M336077-part2 ext4 acl,user_xattr 1 1
[Code]....
The LaCie entry at the bottom there is my pendrive.
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May 2, 2011
I'm having issues copying files from a USB attached HDD (formatted by the NAS to EXT3) over to a NAS device. First some background info (maybe relevant or may not be): I upgraded the HDD in my NAS and now I'm unable to copy the files over from the old HDD while plugged into the NAS. Also tried copying over from windows 7 (64 & 32 bit) as well as an XP machine using EXT2FDS & IFS resulting in perpetual re-booting of all three machines.As a result of that I got a brainwave to try copying the files over from a bootable Linux DVD (Unbuntu 11.04) to the Nas over the network. I am in Unbuntu now but I am having problems copying to the NAS. It seems to work when I select individual files but when I select a older/folders/sub folders to copy over an "error while copying" dialog box appears appears. For example: in "Show More Details" here is the copied text from an error: "Error stating file '/media/f0745264-c91b-4528-9fe3-e3469cdb13cc/Public
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Apr 14, 2010
tell me detection code of device when an external device is connected through USB port.
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Aug 24, 2010
Both the speakers and the headphones keep playing the sound with headphone plugged in.
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Apr 2, 2011
Is there a way to have linux connect to the network when the ethernet cable is plugged in? I'm using Gentoo Linux, and I haven't found the right setup for the conf/net that'll allow me to do that.
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Jan 20, 2010
Powerdevil has been a pain for me for as long as I've use it, since KDE 4.3.1(Even Pre 4.3.1, up to 4.4)... It doesn't toggle when I unplug the AC adapter and doesn't toggle between power management modes, so in-turn shuts off immediately without any notification that power has ran out. When I ran 'acpi', AC Adapter indicates properly when I unplug it and plug it back in, so I would rule out an ACPI issue, no? Is this a bug in Powerdevil?
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Jun 2, 2011
I have connected (sata cable I mean) the drive where I have got my Ubuntu installation to another pc with windows 7 64 bits (but I think that 32 and 64 doesn't make difference). Windows 7 doesn't boot. So I thought it may be some kind of issue with the hard drive itself (but the drive is healthy), anyway I have plugged one drive from one NAS (you know, NAS drives are linux partitioned and formatted).Same result: windows 7 doesn't boot.
Windows 7 boot sequence hangs and at the next boot prompts
"Repair windows installation"
"Boot windows normally"
(and obviously none of the options works)
Looks really like that Windows 7 doesn't boot if any linux partitioned and formatted drive is present.
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Jul 14, 2010
I installed the ubuntu 9.10 cd and for some reason as of last night it only boots halfway. it shows grub, shows loading keymap nd apparmor profiles, then before it shows mpd and apache load it erases everything and stops at a dark grey screen. all before i get a shell of any type. if i leave it alonethe screen still darkens like its going to sleep. is there any way to troubleshoot and fix this?
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Jan 25, 2011
As the name says, I'm new to Linux. I've never even seen Linux. Super noob. I have installed Ubuntu 10.04 onto a Dell Dimension 2350 P4 1.8ghz, 1g ram, GForce 4x 128mb video card running XP. I installed from a Live CD and rebooted. The screen says "finishing Ubuntu install" does a countdown and loads into BusyBox instead. This is what I see:
BusyBox v1.1.3 (Debian 1:1.1.3-5ubuntu7) Built-in shell (ash)
Enter help for a list of built-in commands.
(initramfs)cannot mount /dev/sda1/tmpmountpoint
If I boot from the CD I get: Unable to find a medium containing a live file system I'm stuck, I don't know many commands so step by step. Simply saying 'load grub' means nothing to me.
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Aug 2, 2011
I used my computer this morning, but when I returned this evening, I am unable to reach the internet. Also the light on the mobo where the ethernet cable is plugged in is steady yellow.
My limited experience would tell me it is a hardware failure, but it seems so strange with nothing happening during the day. How might I best diagnose the problem?
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Apr 2, 2010
If I try to create a bootable USB stick by using dd to copy an ISO file to it, it usually works on PC but it won't appear in the boot menu of my Macbook. Is there an easy way to generate a bootable USB stick from an ISO file so that it would boot on a Mac?
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Apr 7, 2011
I would like to boot any PC and make it work as an NFS Server. I like the concepts of liveCDs as they usually have drivers to recognize current and prior hardware to some extent. However, I do not need any GUI or any other services/applications; only what is required to run the NFS server and possibly copy/move files between exported folders from the command line. Can a liveCD be modified with a script to boot up as an NFS Server based on the following list? How do go about creating a bootable NFS Server based on the following list?
The NFS Server should do this upon boot:
- Check for NIC - eth0(?)
- if not present, stop booting with error message.
- if present, assign a specific IP address, mask, gateway.
[code]....
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Oct 3, 2010
I used unetbootin to make a bootable usb with PeppermintOs and then reset the BIOS to boot from 'removable'.
It would not boot - went straight to the (grub?) menu offering mint, and mint safe recovery which is from the hard drive.
First USB did not work, so bought a new one (4gb) and that did not work so borrowed a 1GB from a colleague. This did not work either.
I have tried two different ISOs (having done the MD5sum on them as directed).
I have tried fat 32 and ext formats (using gparted to format it as I don't know any other way) and from there I can see that it says boot, lda).
When I disabled HDD from BIOS, the USB was read but then the message was that no boot device found, replace with proper boot device.
I also tried using the start-up disc creator.
Each time I have tried it on my desktop PC too, having set up the BIOS and I haven't been able to boot with them there either. I know that the netbook will boot from USB as that is how Mint 9 got installed on it.
In desperation I even tried creating the USB from windows. Even that didn't work.
Whilst I have a working copy of MInt 9 on the netbook, this is not vital, but I so want to try peppermintOS on it.
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Jun 21, 2011
I dual-booted Ubuntu three weeks ago with windows vista. Now I want to get rid of everything windows vista and its partition.As I restart my computer the esc, f1,f2,f8,del, and f12 keys don't do anything on the screen that says Dell BIOS revision 1.0.3 the next screen is blank. and my monitor, on auto detect(analog input), says cannot display this video mode 1680x1050. I've tried using the live cd (I just put it in the drive, and don't know what else to do besides that)I've tried using sudo xrandr --output VGA1 --mode 1024x768 --rate 60 in the terminal but all I get is this -> xrandr: Failed to get size of gamma for output default (I did this because I thought it might be a monitor problem)
I've tried going to disk utility...buts that all mumbo jumbo to meex: can anyone explain partitions me? I have: dell utility 49MB FAT,recovery 11 GB NTFS, OS 184 BG NTFS, Extended 56 GB, 53 GB ext4, and finally 2.1 GB Swap 2.1 GB which is the last partition known as sda6.
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Jan 5, 2010
I just wanted to glean some sort of a general average and compare my system with everyones. post your computers:boot time of course hardware specifications (processor, HDD, RAM, etc.) distribution if it's a laptop or desktop (or a netbook ) Mine is 43 seconds, running Ubuntu 9.10 on a netbook. My hardware specs: Intel Atom 1.6 GHz 320 GB 7200 rpm HDD 2 GB RAM
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Jun 3, 2010
to do all the time fsck at boot, how to chagne this value to 4 please?
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Feb 9, 2010
I recently installed Kubuntu with the windows installer wubi. Everything has gone fine until today. When i turn on the pc i normally have a prompt to go to windows or kubuntu. I choose Kubuntu and it loads it up. But now it goes to a grub prompt and i have no idea how to fix this or get into Kubuntu.
Things i did before the last reboot that may have caused this.
I edited my swappiness to help speed things up at the advice of many websites.
Example: url
I changed it from 60 to 10. I did this by adding the line "vm.swappiness=10" to the end of sysctl.conf
I noticed that there was a # or something at the beginning of every line in sysctl.conf and i did NOT add it to my line. This is my guess as to why i am having problems.
The other thing i did was some bug updates. Something was popping up down by the clock area and it was asking me to do some bug updates of some sort. I said yes.
Any idea on how i can fix this? As of now i cannot get into kubuntu at all. It just gives me a grub command prompt.
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Dec 21, 2009
I'm trying to mount a filesystem when the system boots, so i won't need to mount it everytime..
So what I did was copying the line of the filesystem I wanted to mount on startup from /etc/mtab:
Code:
And pasted it as it is, in the /etc/fstab file. when the system booted, it didn't work. not only that, I wasn't able to mount the filesystem at all, (it gave me some kind of an error) so I removed the line from fstab file and it all back to normal. how can I mount this filesystem on boot? (i'm using Fedora 12)
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Aug 4, 2010
When i try to launch a live cd (any of them) I get an "out of range" logo on my monitor. I am aware this means my resolution is not right. Why it's not right is beyond me, isn't this supposed to auto detect these problems and adjust accordingly? I figured installing debian may fix the issue, so i did. Come to find out this garbage linux can't even read a sata drive! So I put in my ide HDD and it installs fine, now I have this dumb video problem. Funny as how windows is supposed to be a crappy os in comparison to linux and yet it doesn't seem to give me any problems. So now that you have a first hand perspective of my frustration, what I can do to get this os working on my computer? I just want to be able to see it, so I can play with it and learn to use it. Is that so hard.
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Mar 6, 2011
I have an 8 gig ssd Dell vostro that has been running ubuntu linux successfully for several months. Linux is the only O.S. on the machine. Wishing to have more room I inserted a new 32 Gig SDHC card in the card slot and did an ext4 format and then did an install using the 10.10 disk that did the original install. Everything seemed to proceed as expected, but it rebooted using the 8 Gig drive. The 32 Gig card appears to have all the proper files. How do I get it to boot from that card?
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Jun 10, 2011
I was following a lesson with my UNIX Academy training and by mistake made a change to inittab. now it boots into black screen. How can I get into shell to fix inittab
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May 15, 2010
Fstab has at the end some values: 0 1 for / or 0 2 for /home or others.
It is nice to set tune2fs -c 2 for disks that have to be reliable and increase the security of the data.
tune2fs is not working for JFS. How to make this check at every single boot of the Debian/ubuntu machine?
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Jan 30, 2011
I have windows7 installed in my laptop. I tried installing Redhat linux in it, and I was successful. But then I logged in with windows7 and deleted the partition in which I had installed redhat through computer management. Now my system doesnt boot with windows instead it boots with GRUB. Also to inform that the deleted linux partition I merged with Windows.
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Mar 23, 2011
After installing the ATI graphics driver that was suggested under System > Devices, ubuntu required a reboot. now it either hangs on boot, or boots into the Bash shell. I tried the option in the Grub boot llist to boot into recovery mode, and then teh option to fix recent update (or something like that), but it did not help.
Assuming the ATI driver is the problem, how can I back it out?
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Jun 15, 2010
I'm a linux newbie so go easy on me with technical terms.I've got a Acer Aspire One ZG5. Everything was working fine until one day when I went to switch it on and it shows up everything its suppose to, the blue logo etc but then it loads upto a black screen with the mouse poitner. I can move the mouse pointer around and such and the lights flash but stop suddenly.I can't use the bios recovery disk as I haven't got a USB big enough.
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Jul 8, 2010
I install security updates - did so and ended up with a copy of fedora that goes into a loop. I suspect the prob is the driver to my video adapter. To run, I need to interrupt grub with an escape. It then shows me two choices the bad one 2.6.32.12-115.fc12.i686 and the old good one 2.6.31.5.- 127.fc12.i686 It defaults to the bad one, I change it to the good one and tell it ot proceed. this is inconvenient
I see that in /boot/grub/grub.conf the 2 systems are described I beleive that if I merely edit that file, taking out the refernece to the bad one, I will be ok That will leave the bad one on the disk but at least I wont have to go thru the ritual of interrupting grub. If I want to delete the bad one - after I've taken care of the grub.conf file, what do I do?
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