Is there any sure-fire way to identify whether the current Ubuntu system is running in Live mode or not? I want to distinguish between Live mode and running from installed HD, and do some processing in boot up script. FYI, in grml, the /etc/grml_cd file only exit in Live mode file system; no such file if running from installed HD.
View 3 RepliesI searched and found several solution but those are distro specific. I need to find out if distro is running in live mode (from CD, USB) instead it's installed on hdisk. The solution should be independent of distribution.
View 7 Replies View RelatedI do not know much about parallel computing, but I do have access to a few cpus.I am trying to write a program compatible for multiple cpus, but to do it, I need to ensure unique directories. I have figured out that the time of creation, process id, and cpu id form a unique combination I can use to name files (up to the degree of accuracy of the internal timer).Anyway, I am using perl. I know how to find the process id and I know I can get the time pretty easily, but as I said, I do not know much about hardware or parallel computing. All I need is a way to identify each cpu in the system and I am set for half of my program (the other half is significantly more straightforward and is mainly about text parsing.)
So anyway using terminal, perl, etc., I could access this identification? Or could someone at least tell me the name of what I am looking for? I have seen the words "ip" "MAC" "hostid" and a bunch of other "id" things come up in my googling, but I really cannot figure out which is the one relevent to me
(Consider yourselves forewarned: I'm completely new and will be incredibly stupid. Give me slack. )
So I'm trying to run my S-Video cord from my HP Desktop to my television screen. Everything was set up, then I looked up how to get it to start playing on forums here. I went to my NVIDIA, and when I went to change what apparently had to be changed, it was already set up in the format I was supposed to set it up as. I hit "save", and then restarted my computer, as the step-by-step instructions said. Upon restarting, I got an interesting message saying that Ubuntu had to be run in low graphics mode. I don't know the logistics of my computer, or really anything (it was given to me, and I don't know how to check ) I've been reading some things here, and a few things sounded like what was wrong with me, but when I followed the directions, it got me no where. I'm coming to you to prevent me from chucking this thing out my window .
So, what I'm asking from you:
1)How do I get out of Low Graphic Mode
2)How do I set up my NVIDIA to play to my TV?
We have an old server running, and I decided to run fsck.ext3 -n on the disk to check it (while it was running). Turns out it reports lots of errors - not a good thing.
The weird thing is that when booting up a rescue cd and running fsck.ext3 on it, it says there are no problems with it. The filesystem is marked clean. Forcing a check with -f turns up nothing.
Now, when booting it from disk, fsck complains about an unclean file system that has not been checked for like 50000 days (obviously an error). Running e2fsck -n /dev/sda2 turns up errors again - not necessarily the same ones as the last time.
This makes me wonder: Can running e2fsck on a mounted file system cause errors? I ran with -n which is not supposed to do anything, just doing a read-only check. On the other hand, I heard checking a live file system might throw erros since the files being checked might change while bign checked, thus causing false positives.
Can the old version of e2fstools (1.38, approx 2005) mean non-existing errors are shown? Both the rescue cd and the system use this version.
In any case - why would the file system report errors on boot-up when the rescue cd just said it was ok? It should have been marked clean by now.
For laughs, I shut down the system and booted Knoppix which has a quite recent version (1.41.12, May 2010) of e2fstools. It showed no errors on the file system.
What do you think - are there errors or not on the file system?
The system is actually running Suse, but this is not about Suse specific things - just general Linux tools. And I use Ubuntu personally.
is it possible to create a live cd or a cd/dvd installer from a running system.
View 2 Replies View RelatedI am too stupid to run a live Linux on a Macbook air. I used both, an openSUSE 11.3-KDE Live-CD and a Live-USB key and tried several boot options.
(i) I held down "C" to boot from CD → didn't work. It's an Apple CD drive but came with an older Macbook air a few years ago.
(ii) Found the bootmenu by holding down the option (ALT) key. Neither Live-CD nor Live-USB were shown. You can only choose the harddrive (and available wireless networks).
(iii) "Command-Shift-Option-Delete" to boot from an external drive didn't work either. I assume my USB key is an external drive, right?
I don't want to install openSUSE on the mac I just want to run a live system from time to time. Therefore I want to bypass Boot Camp or rEFIt and that's probably why I am stuck here. I wonder, if I really have to setup one of them to boot into a live system? The wiki article "openSUSE on a Mac" is under review right now.
I'm using the FortiClient SSL VPN free version provided by my University. I can't get tech support from the university OR Fortigate. I have it running on one system, but I have no idea what the sequence of libraries I installed was. I need it to run on a second machine. pstree is only telling me that the FortiClient ssl daemon depends on pppd. I need to know how to find out what else it's using: LibPKCS and the like.
View 1 Replies View RelatedI installed ubuntu 9.10/9.04 on my usb key as live image couple of time. I have trouble when I try to install wine on my usb key. I am wondering what is the difference if I install my ubuntu into my usb key directly? will that be slower compared with live CD mode? I guess live CD mode may use memory as part of harddisk to save temepory files and normal usb linux installation won't do this for me. Is this true?
If so, do I have a choice to point my tmp directory to system memory area?
I'm currently running 9.10 and am anticipating upgrading to 10.04 when it is released next week. I am however, running several packages from PPA's that were simply not working well at the versions included with 9.10 (I know specifically the 64-bit version of Flash and Wine are setup this way).
Since these installs are out of the scope of the official Ubuntu sources, how are these handled when I upgrade? More importantly, since some of these packages were just installed as a temporary fix until 10.04 came out, for some of them I'd like to remove the PPA version and reinstall the default version (since for several of them the 10.04 version has caught up to where it needs to be). Is there any way to identify all packages installed from PPA's on the system?
How can I identify my system's motherboard from the command line?
View 5 Replies View RelatedI want to get the count of host reboot and host crash per day.Host reboot - i use last command and make sure the count.How to catch the System Crash ?.
View 3 Replies View RelatedI attempted to install Catalyst 10.11 for my ATI HD 2600XT and the system now only displays lines and a large block of pixels where the mouse would go. CTRL-ALT-F1 kills the system and does not provide a command prompt. This is a single installation, not dual-boot, but there is no Press Esc to access the Grub menu during startup so I cannot choose safe mode. I attempted to get into Recovery mode using the flash drive that I used to install the system and it tells me there is no Recovery kernel (I used the 64-bit Desktop installer, not alternative). Does anyone know an alternative to get into the Grub menu other than ESC during bootup? Alternatively, do I need to download the 64-bit Alternative ISO and create a new boot disk with it so I can access Recovery mode? Is there something else I'm not thinking of?
View 5 Replies View RelatedI would to change to bigger than current screen mode. On my laptop display is current for 1366 x 768.I will to add new size of next bigger resolution.. i need space of desktop. I want to add : But it has problem it can not work.
I tell about size new resolution:
1366 * 1.5 = 2048 == 2048
768 * 1.5 = 1045 >= 1044
Depth: 32
Reflective: 60, 75 hz
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The output of my fdisk command is as follows :-zodiac@gml-admin:~$ sudo fdisk -l[sudo] password for zodiac: Disk /dev/sda: 160.0 GB, 160041885696 bytes255 heads, 63sectors/track, 19457 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe30ce30c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1958 15727603+ 7 HPFS/NTFS
/dev/sda2 1959 4752 22437838 f W95 Ext'd (LBA)
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alrighty, long story short, I screwed up. I had installed a copy of ubuntu 9.1 to my sda1 partition and a copy of windows 7 to sda2 and it worked pretty well, but after needing to change the partitions around, I deleted sda1 and did a wubi install. I forgot to adjust the mbr before deleting the ubuntu install and my live CD is still running ubuntu 9.1 (think that's grub 1.5) and I can't update the live CD, as my only functioning OS is currently running off it. I suspect, therefore, that the mbr is still pointing to a now non-existant partition to find the boot files. So, in short, how do I use my current live CD to allow me to boot into windows in this situation? my current partition table is sda2: windows 7/wubi, sda1: media/backups
View 2 Replies View RelatedI'm trying to create a live CD of my current CentOS installation. I want it to be almost like a backup, so whenever I want to copy my current installation to another computer I would simply install from my custom live CD.I know this is possible, and I found some resources on the net, but they all seem to only create a minimal version of CentOS; I want to have all the current functionalities available to me at present, including all of my development functionalities, Apache and samba settings, etc.
View 1 Replies View RelatedJust in case someone can reply a silly question, I've quite forgot the vi/vim command to bring the cursor to the 1st char in the current line. I do remember that for bringing it to EOL is '$'.
View 14 Replies View RelatedI run 9.10 from a live usb with persistece, and got /etc/sudoers awfully messed up. now i'm told to fix in through 'recovery mode', but i don't think live usb has one. is that true? what about my sudoers? is there another way to fix it?
View 3 Replies View RelatedI wanted to try the new Ubuntu and see if all works for me and if I like it, but booting it in live mode drops me straight to the regular Gnome 2 interface, no Unity, no common menu, nothing. Is this expected or did something go wrong?
View 4 Replies View RelatedI was just wondering if there is a way to capture current state on a machine and create live cd from it?
If not - what is the best way to create Live CD with optimazied system updates and configuration packages.
I am trying to install ubuntu 11.04 on my PC but i couldn't make it to the desktop of Ubuntu 11.04... i'm so in a need of help i've tried CD burning, using USB/flash drive as a bootable media but couldn't make it to install or get a live systemIt boots fine, take a time but it boots than shows the desktop background with log off, volume control and a button which has a arrow sign i think its an network button and a mouse which i can move freely....i cant even click on those buttons which i can see in upper right corner, and its ends here nothing happens after that....i tried 100times but in vain..what is happening?? eagerly waiting for the help as i want to stretch my fingers on 11.04
View 9 Replies View RelatedI had initially created 10 GB ext3 partiton for my kubuntu 9.10 , but now space is almost full , I tried Gpartedbut it wont let me unmount my ext3 partition ?The error is posted below.I got windows 7 on another partition but its partition manager does not support ext3 so its useless ??shd i boot from live CD and then extend my partition or is there an easy way out , like using "parted" command line tool Could not unmount /dev/sda2The partition could not be unmounted from the following mount points:/Most likely other partitions are also mounted on these mount points. You are advised to unmount them manually.
View 5 Replies View RelatedI decided to put a copy of Ubuntu 11.04 on a USB stick. Downloaded the image file and USB installer and built the stick with no problems. I REALLY don't like the new interface, so I went to the login screen tool and changed the login to come up in Classic mode. Trouble is, now when I try to bring the system up I'm presented with a log-in screen that asks for a user name and password. Since I'm using a live image (akin to a live CD) I don't have any user name or password established. Are there defaults that will allow me to log in? Or do I have to recreate the installation and create a user account that will let me log in?
View 9 Replies View RelatedTried to install 10.4 Beta2 on my testing machine. Boots but then splash screen starts scrolling really fast though I can notice that 5 dots are moving so no hanging. It takes quite a while and then black screen appears (also scrolling) and I cannot read what's there; last line looks like a prompt. Alt-Ctrl-Del reboots the machine. So I cannot even enter Live mode.
This machine is about 7-8 y.o. P4 2.4GHz (i686) on Asus P4S333/c, 2.5GB ram, GeForce3-Ti200, latest bios 2003 but runs any Linux (I tried) and FreeBSD 9-CURRENT perfectly (Even win7 is installable...but runs badly). On newer machine same CD works fine. The machine is AthlonX2 2.3GHz on Asus M3N78-vm, 4GB ram, onboard chip GeForce8200, HDDs, DVD-RW - all SATA (AHCI). What could be wrong with my old machine? Does Ubuntu still support 96xx Nvidia driver?
I have a persistent pendrive of Ubuntu: [URL]
It has a file where it saves the configuration of my computer: casper-rw
But if I boot this USB flash drive in another computer I would like to do it in a fresh way, that is, without loading the configuration of my computer (saved in the casper-rw file). For example, in Puppy Linux this can be done easily, just putting pfix=ram in a boot option of syslinux.cfg and selecting this option when booting.
I think this is important because I think that otherwise the Ubuntu (at least in some cases) cannot open if used in a computer different to the one where casper-rw was configured. It happens to me that I cannot run Ubuntu with my pendrive when inserted in a different computer (I think the reason is what I've said).
Is there any way when booting the LiveCD of Ubuntu 11.04 to force the use of classic mode, even if the computer meets the requirements to use Unity and would otherwise start Unity? Is there a kernel parameter that would do this? In searching, all I can find is the selection during login, but this seems to only show up after a full installation, I want to do this in the Live CD environment.
View 8 Replies View RelatedI am playing songs from vlc i wanna listen them with live mode . but everytime opening equalizer for settings to make into live mode is some what tedious and irritating job to me.
View 5 Replies View RelatedWonderful Debian 6 in live mode! Using it with my EeePc 901 with ralink rt2860sta wireless Doing lsmod, rt2860sta is on 0 (it means, don´t charged) How can I use my wireless rt2860sta in live mode?
View 1 Replies View RelatedI am attempting to work with adding a new hard drive with a default logical volume setup. In order to complete the task, I am instructed to use a live CD to boot the system without mounting the drives using linux rescue. I am using CentOS-5.5-i386-LiveCD-Release2.iso
I have reviewed the centos documentation. When the live CD boots, it starts a count down to an automatic boot. I attempt to invoke the boot options as directed by hitting the tab and adding the words
linux rescue
At the end of the line and hit return to begin the booting process.
Unfortunately, the linux rescue boot option is ignored and the system mounts the hard drive. Additionally, I have checked the boot option several times by hitting the tab a second time and the option is not displayed.
In researching the issue, I inevitably get very similar instructions like:
Quote:The first centos CD or DVD has a rescue mode, just type on the boot screen: linux rescue