I have an embedded box on which I am developping a driver using a linux kernel. I frequently need to reboot it and relogin as root.
I wounder whether I can modify the boot sequence so that it directly boots into a bash belonging to user 'root'.
I know that this represents a security issue -- looking at my "use case" this is of concern.
I have an external drive mounted courtesy of an entry in fstab. The drive isn't detected at boot time until AFTER the backuppc service that will use the drive has started. I have to therefore manually stop and restart the backuppc service once booting has completed, otherwise backuppc thinks there is no drive available to it.
How can I force the mounting of my external device to occur BEFORE the backuppc service starts?
I am using Ubuntu 10.04 server edition
I've sucessfully installed Fedora 11 into a SunVirtualBox machine, but I would like to elimate from the boot sequence the GUI Startup. If I need it I could invoke the GUI from the command line. How I coud get this?
View 5 Replies View RelatedHaving upgraded to 10.04 seemingly without any problems as everything looks to be working so far. The only strange thing I have noticed so far is the new startup upsplash. After the BIOS startup I get approx, 25 seconds of blank screen then the new upsplash which is a multicoloured and very indistinct UBUNTU with what looks like DVD/CD control symbols below. After this I get the new purple Ubuntu screen and then the login screen. Total time approx.46 seconds. I also get the same indistinct UBUNTU when closing down. Is this the correct startup sequence for 10.04 and is any else seeing this strange multicoloured indistinct UBUNTU screen. Is it my system/config at fault or is this the norm?
View 1 Replies View RelatedI've been fiddling about with vortexbox (the one before 1.4 I think), for a while. This is a music ripping and server rpm setup using Fedora 11 as the base.
As it was on a test machine, decided to try changing the logical volume sizes of LogVol00 and LogVol02 to fit a few more cd's on 02 before getting a new pc (just to see how it works).
Logged on and opened up the graphic version of lvm (using gnome). Then selected the LogVol02 logical volume, select edit, changed name to LogVol02-Storage, saved and logged out. Rebooted vortexbox since then its been unable to start properly (is this a kernel panic?).
Read up a lot on lvm on the net, have access to Fedora 11 disk 1, so logged on. Eventually managed (I thought to) to change LogVol02-Storage to LogVol02 using lvrename.
However, still refuses to boot completely.
The message it gives is as follows (sort of): Welcome to Fedora Press '1' to enter interactive startup
Setting up Logical Volume Management: 3 logical volume(s) in volume group 'VolGroup00' now active
*** An error occurred during file system check.
*** Droping you to a shell; the system will reboot when you leave the shell.
Give root password for maintenance (or type Control-D to continue):
Loving vortexbox appart from this. Will it be easier just to reinstall everything? If so, is there a way of listing all the changes I've done so I can reproduce (I'm thinking of just looking at all the commands I ran on the CLI).
Otherwise, is there a way of listing all of the commands I ran in terminal and piping them into a file so I can see what I need to do to rebuild after reinstalling?
I did a quick search of the forums and noticed that 2 LED's flashing indicates some sort of kernel panic, but what about all three flashing, one at a time in sequence? I'm doing diskless booting of RedHat 5.1 on this machine but I'm hoping the problem isn't related to that, and just something simple. The OS loads, and I get to the login screen (not noticing anything about kernel panics during boot), but the keyboard doesn't work and the three lights flash. It's not a GUI login screen, so I don't know if the mouse would work.
View 5 Replies View RelatedI am using Vetor Linux and I want to login automatically every system starpup instead ask for user and password. Vector linux is based in slackware and uses shell to ask user and password.
View 1 Replies View RelatedOn startup my machine (a PC a few years old with recent Fedora 13 clean install) seems to be OK until it tries to get to the Login GUI, where it stalls at the f/infinity Fedora logo. The last things I did before shutting down my computer last were uninstalling the mail client Evolution via the GUI package manager and downloading a torrent. Could these have effected such a stuff up? I'm not altogether clear on logging in via a terminal.
View 4 Replies View RelatedI hear no login sound when I login to my ubuntu. I checked at startup applications and found GNOME login sound is enabled. The command used there is
Code:
/usr/bin/canberra-gtk-play --id="desktop-login" --description="GNOME Login"
.
Its not only this, but there is no other sounds enabled - for mouse clicks etc
Why is the Linux boot sequence is organized the way it is?Power on + BIOS runs hardware initialisation and self tests, LILO/GRUB etc... but why is it organised the way it is?Would I be right saying it is primarily for debugging purposes?
View 1 Replies View RelatedThe <Esc> key has an equivalent two-keystroke sequence within vim, I think I remember.
View 8 Replies View RelatedIs there a way to interrupt the boot sequence, or execute it line by line? Alternatively, after a command has executed and the scree fills up, is there any way to "page up" on the screen?
View 1 Replies View Relatedchicken-Egg problem in booting sequence.......
View 6 Replies View RelatedI'm creating a bash script that contains the following line:"ssh user@$server1 cd /tmp; pwd"What I want is to print /tmp of server1, but the script it isn't printing that
View 2 Replies View RelatedI'm trying to write a script to do the following:
I have a text file that contains many lines that look like this:
I'm trying to make my script read this text file, find the string sequence "QIEN", and delete everything from this sequence backwards (including "QIEN") so that the above lines look something like this:
I'm aware that grep is good to do a regular find-and-delete as follows:
Code:
But this will delete everything on the lines that contain the string sequence "QIEN".
figure out the best partition layout for my linux installation which I'm about to have on my laptop. Having read numerous articles on partitioning in linux I've gathered some ideas, still there was no let's say a clear explanation as to the sequence the mount points should be arranged on the disc...What I have in mind is to use a single disc space as efficiently as possible considering the head travel. The pc is a laptop, 160GB HDD and will be used as a normal desktop with some simple sound processing. Distro Linux Mint 10. I'm planning to have such partitions and all will come after a Win7 installation:
/boot -> some write it's not necessary in dual-booting, some that it's good to have for security
swap -> with 4GB of RAM i don't suppose i'll use it
/
[code]....
have the most heavily utilised partitions close to each other so the head doesn't move for large distances. The placement also makes a difference as the closer to the inner rim of the disc the worse performance. I'm also not sure about the sizes. Read posts with recommendations but still judging by installations on a different laptop and virtual machine e.g. 5GB for /opt is a bit too much as there's almost nothing in there. Certainly /usr fills up, /var too from what I've observed. / also has scarce data in it so I'm wondering if giving them e.g. 5 gigs each won't be a waste of space resulting in greater head travel.
Is there a way to print a transcript generated using script that is coloured using ansi escape sequences while preserving the colours?
I am on OS X 10.6, but any tool that works on OS X or on Linux that can print or create a pdf file will be extremely helpful.
I lost an important file. I know what bytes the file begins with. How can I search the partition for the sequence of bytes?
View 4 Replies View RelatedI want to change the start-up sequence of services on SLES10/11.
I have my own start-up scripts for some services and I want them to start in a particular order(not in alphabetical order)
I have a box with Novell Suse linux installed. It asks for username and password I do not have and cannot figure out. I also have a SantaFe distro CD with which I would like to replace the Suse on the box. I cannot get the box to BIOS to change the boot order to boot from CD. I would like to break free of Windows, but can't seem to get there from here...
View 5 Replies View RelatedI have a dualboot (Xp and fedora) system and would like to change default boot. How do I do this?
View 2 Replies View RelatedAlthough I tried to upgrade from Fedora 14 to 15 using Pre-Upgrade, my system does not find Fedora 15 at the end when the Pre-up-grade sequence. On the very last step when Pre upgrade reboots my computer it just goes straight back into Fedora 14. No choices (Fedora 14 or Fedora 15 Upgrade Kernel) are shown.
View 2 Replies View RelatedI'm currently using an external screen with my laptop at home connected with a serial port. When I'm in X, my laptop display is automatically disabled, when the external screen is connected. Is there a way to do this also at boot time? Where do I have to configure this? Also I'd like to have my login shells on my external screen, when switching to them out of X.
View 2 Replies View RelatedI am trying to find a way to replace a set of sequential numbers in a file with a different sequence using sed. This might be done easier using awk or some sort of bash script, but it seems to me there must be a way to do this easily with sed. Basically, what I am editing is a Cisco switch config. I want to change the sequence of ports to a different numbered sequence. Here is an example of what I am trying to do.I want to change for example, the file:
Code:
cat testfile
interface FastEthernet0/1
[code]...
I have a text file with content that look like this..
Code:
1,3927,"AIS"
1,6928,"AIS"
[code]...
How to print a sequence of line say line number 10 to 20 of a 50 line file ?
View 6 Replies View RelatedI want to change the Boot sequence in Ubuntu 10.04.
In the past I have used
Quote:
But with 10.04 this returns a blank screen. I assume something has changed.
I am working on tracing the signal handling mechanism in linux kernel internallly. For that, i build the kernel. Now, i want to trace the signal handling mechanism in the old kernel. I got to about SYSLOG and PRINTK for this. But, how to use these tools exactly in tracing the handling of signals internally ?. Is, there any tool similar to backtrace to do that?. How the call flow is done internally ?
View 1 Replies View RelatedI don't get a UI login prompt at startup and it makes a sound. I'm using 10.04, though this did happen to me in 9.0x as well. When I press ctrl-alt-F1, I login and sudo gdm stop and do sudo startx this seems to put me at root and there is an error with the applets and the panel does not load. "Killall gnome-panel" does not fix it.
If I simply do startx (w/o going to root), it goes to a black screen and if I press ctrl-alt-F1 it repeats "No protocol specified" until I get the error message xinit: Resource file temporary unavailable (errno 11): unable to connect to Xserver.
Always was alright until I installed RVM and ruby 1.9.2.After this I rebooted my PC and just got default wallpaper and NO LOGIN PROMT...I tried CTRL+ALT+F1 and:
- startx ===> already running
- gdm ====> already running
-also tried dpkg-reconfigure xserver-xorg
[code]....