Hello List,
I want to boot into single user mode and run a script automatically.
I have been looking for a couple of hours and have found one solution I don't like.
How can I get the shell that is started in single user mode to run a script. My one solution was to add a profile in /etc/profile.d/ that called the script. Is this the only way to do it?
Thanks,
On Tue, Feb 04, 2014 at 03:04:05PM -0500, Steve Clark wrote:
Hello List,
I want to boot into single user mode and run a script automatically.
I have been looking for a couple of hours and have found one solution I don't like.
How can I get the shell that is started in single user mode to run a script. My one solution was to add a profile in /etc/profile.d/ that called the script. Is this the only way to do it?
wild guess here: 1. make this a username that isn't used for any other purpose 2. try setting the default shell in /etc/password, for that user, to run the script. This may require some experimentation to find the correct incantation.
no clue if it'll work, haven't tried it.
good luck!
On 02/04/2014 03:17 PM, m.roth@5-cent.us wrote:
Steve Clark wrote:
Hello List,
I want to boot into single user mode and run a script automatically.
<snip>
How often - every time, or just once? If every time, create a script and put it in /etc/init.d/, with a link to /etc/rc1.d, or use whatever it is in systemd's analog.
mark
Everytime. We have a USB key that has a tarfile of CentOS and our software on it The script partitions the hard drive and untars the tarfile - this takes about 2 minutes vs using a custom kickstart file which takes 20 to 30 minutes.
So we build a CentOS respin iso image along with our software - install it into a virtual machine and at the end of the install the ks file creates a tarfile from the new image. We then move this image to the USB key.
In CentOS 5.x all I had to do was create a .profile file in / and it would get ran. CentOS 6.x doesn't run the .profile -
On Tue, Feb 4, 2014 at 2:32 PM, Steve Clark sclark@netwolves.com wrote:
I want to boot into single user mode and run a script automatically.
<snip>
How often - every time, or just once? If every time, create a script and put it in /etc/init.d/, with a link to /etc/rc1.d, or use whatever it is in systemd's analog.
markEverytime. We have a USB key that has a tarfile of CentOS and our software on it The script partitions the hard drive and untars the tarfile - this takes about 2 minutes vs using a custom kickstart file which takes 20 to 30 minutes.
So we build a CentOS respin iso image along with our software - install it into a virtual machine and at the end of the install the ks file creates a tarfile from the new image. We then move this image to the USB key.
In CentOS 5.x all I had to do was create a .profile file in / and it would get ran. CentOS 6.x doesn't run the .profile -
If what you are really doing is the equivalent of cloning images, you might look at clonezilla, or the backup/restore package called rear (in EPEL). But for a quick brute-force change, you could probably edit /etc/init/rcS-sulogin.conf and add the script you want to replace /sbin/sushell.
On 02/04/2014 04:33 PM, Les Mikesell wrote:
On Tue, Feb 4, 2014 at 2:32 PM, Steve Clark sclark@netwolves.com wrote:
I want to boot into single user mode and run a script automatically.
<snip>
How often - every time, or just once? If every time, create a script and put it in /etc/init.d/, with a link to /etc/rc1.d, or use whatever it is in systemd's analog.
markEverytime. We have a USB key that has a tarfile of CentOS and our software on it The script partitions the hard drive and untars the tarfile - this takes about 2 minutes vs using a custom kickstart file which takes 20 to 30 minutes.
So we build a CentOS respin iso image along with our software - install it into a virtual machine and at the end of the install the ks file creates a tarfile from the new image. We then move this image to the USB key.
In CentOS 5.x all I had to do was create a .profile file in / and it would get ran. CentOS 6.x doesn't run the .profile -
If what you are really doing is the equivalent of cloning images, you might look at clonezilla, or the backup/restore package called rear (in EPEL). But for a quick brute-force change, you could probably edit /etc/init/rcS-sulogin.conf and add the script you want to replace /sbin/sushell.
Hi Les,
Yes I found that file - Thanks.
On Tue, Feb 4, 2014 at 2:04 PM, Steve Clark sclark@netwolves.com wrote:
Hello List,
I want to boot into single user mode and run a script automatically.
I have been looking for a couple of hours and have found one solution I don't like.
How can I get the shell that is started in single user mode to run a script. My one solution was to add a profile in /etc/profile.d/ that called the script. Is this the only way to do it?
What is the big picture here? You could probably just stick your script into /etc/rc.d/rc.local where it will run at the end of the other runlevel processing - and have it put back the old version if it only needs to run once.
But, poking through /etc/init/* it looks like a file named /etc/init/rcS-sulogin.override would do something magic like you want.
-
Fred Smith -
Les Mikesell -
m.roth＠5-cent.us -
Steve Clark