Ubuntu :: Always Going Single User After Boot?
Nov 22, 2010
I'm running mythbuntu on 10.04 with an AMD athlon and nvidia geforce4 (nvidia-96) graphics. Shortly into the boot procedure, the system appears to switch into single user mode, killing all the processes I want running and dropping me into the recovery menu.
On 20 Nov I was having problems booting the system, which I traced to a probably loose sata cable to the (single) hard drive. While working on this I performed a normal system update, and then started having the problem described above. the update included
menu 2.1.43ubuntu1
libc-bin 2.11.1-0ubuntu7.5
plymouth 0.8.2-2ubuntu2.1
grub-pc 1.98-1ubuntu8
xserver-xorg-core 2:1.7.6-2ubuntu7.4
initramfs-tools 0.92bubuntu78
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Jul 3, 2009
No idea why this happens but on a couple of systems I'm unable to boot into single user, either as runlevel S or runlevel 1. This is true for the Failsafe image and the regular system image alike.
The major symptom is that it seems the initrd image is started and then the system hangs when it tries to transfer control to the inittab.
I am able to boot into the system with runlevel 2 or higher. I am also able to boot into the single-user rescue DVD image.
how to add the rescue DVD boot image to my secondary IDE drive so that I have a guaranteed way into the system?
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Dec 24, 2010
So I was messing with my sudoers file and messed it up. I found this solution:http://ubuntuforums.org/showthread.php?t=140852But the grub menu doesn't appear on boot. Google finds that ESC, SPACE, TAB, and several other keys are supposed to bring the menu up. However none work and I can't edit the grub configuration without being able to sudo.
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Mar 7, 2011
does anyone know how to boot into single user mode with openindiana?
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Apr 10, 2010
I need to recover the root password or reset it. For this, I am trying to follow the following steps to get into the single-user mode & where exactly I am getting stuck: 1. Reboot the machine2. Press <esc>3. At the boot loader screen, i have 'Red Hat Enterprise Linux Server ($version info)' highlighted. 4. Simply pressing 'e' (for editing) does not work (does nothing). 5. I have the option to press 'p' to enter boot-loader password and then go into the single user mode.What if I don't know the boot loader password as well & I want to get into the single-user mode WITHOUT using a boot CD? Is this possible? If so, please share the procedure to do so.
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Jul 3, 2011
I installed Ubuntu 11.04 and it refuses to show me a boot menu so I can select single user mode. When it does boot, it continues to cycle as X11 fails, but will not let me change into any of the consoles via control+shift+1-7 or control C or any command. X11/GDM continues to cycle as I hear my video card keep spinning up and down. In every version prior, after 3-4 fails it would give you a shell and say, ok it failed. how to boot into single user mode or escape out of this GDM/X11 fail cycle?
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Mar 8, 2011
I have few virtual machines running on one of xen servers & I'm experiencing a problem booting up one of clients "domain".
How can I force this machine to boot up to runlevel 1? I can't see grub menu when first booting it up!
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Apr 24, 2010
I am starting Debian in single-user mode since my video is not detected in X mode.
I would like to start a script at boot time with Debian. I flowed the instruction from this page [URL] but is not working.
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Mar 10, 2011
I need boot in emergency mode (not single user mode), from docs:
[URL]
in red hat enterprise 5 it's ok, not in red hat 6.
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Jun 23, 2011
Is there a way that I can have a user on my Ubuntu 11 box that when logged in it automatically opens X program and nothing else, no window manager nothing, single program for that user only?Here is the scenario, I have 3 users, one is called Skype. I want when someone logs into the skype user no window manager at all be available to that user from the GDM and for xwin to automatically start skype up.
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Sep 7, 2010
How do I get into Single User Mode in 10.04?
The grub menu seems to be gone in 10.04, and the computer boots in 2 seconds. It's great that it boots fast, but there has to be some way to specify boot options?
/etc/default/grub says the timeout is 10, but that doesn't seem to be the case.
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Sep 18, 2010
I have a quick question that I haven't been able to find an answer for so far. Is it possible to 'hide' a user from the user list in gdm? Note that I don't want to remove it entirely, I just want a user that you can only get into by clicking 'other', entering your name and password.
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Oct 28, 2010
I have a good question. I have a friend that lives in an area where he cannot receive DSL or Cable internet. He has a phone line, and physically able to get DSL, but the company won't give him service. He has Verizon wireless, but the reception is bad and his service gets dropped too much.
I however, have DSL 3.0Mbps and want to know how I could get him a DSL modem to dial up to my server at my house and receive internet. I know that I would probably need two phone lines to do this, but apart from that.
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Jan 17, 2011
I have a Lucid Ubuntu installed on my home PC with two user accounts, AmHero and simple. I would like to have all internet access disabled when my kids login with the 'simple' userid. And yes, internet should work when I login using AmHero. I tried this:
[URL]
..but this does not work and gives some errors on the terminal.
I can paste the errors, though I am not sure this will even work as I found this in an old post.
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Apr 5, 2011
I'm trying to disable multiple logins for a single user on Ubuntu 10.10 but I haven't been able to find a way to do this on this version
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Jun 15, 2011
How can I, a single user, stop the hassle of having to constantly log in. Ubuntu 11.04 is what I currently using.
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Mar 22, 2009
what things can i do in single user mode?is there a guide out there can help me out how to navigate in single user mode?in links that focus only on user user mode?being in single user mode in other istro all the same? debian, fedora, suse. etc
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Aug 10, 2010
I've created Oracle Enterprise 5 Virtual machine. It was running fine but not sure what went wrong and now when ever I reboot the machine, it goes to single user mode. If I enter "init 5" command it boots to multi-user X11 mode without any problem.I checked inittab file and default line has id 5. So it looks OK. What else can be wrong?
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Jun 10, 2011
I have a user that can ssh to every computer on our network expect for one. I verified that it has to be the account by having the user ssh from a different computer. the results were the same.
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Mar 18, 2011
I am running redhat ES 5 on a dell server and recently, I ran into a snag where I was able to reduce a partition (ext3) but could not run resize2fs (mismatch between physical and logical blocks (i never found a solution to this). In any case I decided to log in a single user mode (appended 'single' at the GRUB loader prompt) and now I am always taken to this single user mode every single time I reboot and can't seem to get out of it. I have tried init 5 (runlevel that the system is set to boot into by default) but that does nothing (no message on the # prompt).Of course, I have 2 problems here:
1) partition issue
2) cannot log out of single user mode.
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May 2, 2010
I want to fix my disks with fsck but using sudo init 1 is not allowing me in. It shuts my services down, then gives a "Give root password for maintenance" prompt. I've tried my password, but it rejects it.
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Jul 12, 2010
I would like to install ubuntu on my imac g4 but osx won't boot so I wanted to
to use ubuntu is there any way to eject cd from single user mode?
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May 8, 2011
in ubuntu 10.04 how to get into single user mode with out entering the root user password
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Mar 22, 2010
I'm running debian lenny. Suddenly when I rebooted my system I was unable to login. I type root and the password and it tells me the login is incorrect.If I boot into single user mode, it accepts the password just fine. Looking in the /etc/shadow file, it appears to be fine as well.Running passwd to set a new password sets a new password just fine, i can login to single user mode with the new password, however, I cannot login at a higher runlevel with the password.
If I delete a password in the /etc/shadow file, then try to login as that user, it simply says "Login Incorrect" without even asking for a password.
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Jan 6, 2010
how to give two or more permission to single user.
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Jun 9, 2010
how can i restrict a single particular user from logging into the server not more than 5 times?
The conditions may be:
1) wrong password
2) can login only 5 times on one day etc.
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Oct 27, 2009
Upon OS start-up Debian gives a choice, one is just simply start Debian, another line to start Debian, but with brackets (single-user mode). What's this for? And when and why do you need to use this?
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Jun 30, 2010
I have a file server on my network. It is accessed mainly by linux machines throught NFS, but sometimes I need to access it from windows, and I managed to get Samba up and running with only one share with no password, which is what I want.My users have their "private" folders which are just chmodded 700, and under NFS it works fine, but on samba I get, of course, access denied.How can I configure samba so that it asks a password to access those directory? They can become separate shares, and have their own username and passwords (not the ones in /etc/passwd in the server), I don't care.
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Mar 6, 2010
Still working scanning results, this time with DISA's SRR scripts.More than one scanning package complains about;The UNIX host is bootable in single user mode without a password..So, I assume in /etc/passwd there is an entry that corrects this?what is the specific syntax and where does it go ?
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Aug 6, 2011
I have a system with a fair amount of software on it. The system stopped working due to a hard drive error. The system have 5 hards drive ( 1T). I need to get into single user mode (maintenance) as some how I messed up the root password. When starting up I get the time out screen press esc and it takes me to GNU GRUB version 0.97 screen In this screen there are 6 different lines
CentOS (2.6.18-238.12.1.el5PAE)
CentOS (2.6.18-238.12.1.el5)
CentOS (2.6.18-238.9.1.el5PAE)
CentOS (2.6.18-238.9.1.el5PAE)
CentOS (2.6.18-238.el5PAE)
CentOS base (2.6.18-238.el5)
I move the arrow down to CentOS base (2.6.18-238.el5) and pressed 'e' Then I get three lines
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