today i started the LFS book (version 4.0).
Basically i am using slackware 9.0 to try and install a new linux completely from source on another partition.
Now i took the book's recommendations and created a user called lfs so i wouldn't have to do the stuff as root, and i have got the new LFS partition mounted at /mnt/lfs
the first thing we do is to compile a static version of bash to put in our new linux partition, because we want a statically compiled working set of utilities with which to build the new system when we chroot into the new location (at /mnt/lfs, or /dev/hda6 to its mates).
Now the thing is, well you can see what the thing is here:
the first attempt is as user "lfs" but then i su to root and get the same error! any idea what the issue is? i am stumped.
Hi,
I have a developer that is trying to start a script with sh "scriptname". In the script, he is specifying #!/usr/bin/ksh as the command interpreter. For some reason sh is ignoring the #!/usr/bin/ksh. We are running Solaris 8. Does anyone have any ideas what could be causing this? Here... (3 Replies)
I am writing an expect script but am getting a bad interpreter: permission denied error.
I don't think the error has anything to do with expect itself, I think I am missing something in how I start the file. For instance, when I run the file under the expect directory it works:
cd... (7 Replies)
Hi,
Iam trying to run a gmake command and have the latest version of Gnu in my redhat linux system.
I need to execute the following steps;
---> chmod +x utils/*
---> ./utils/AllCodeManagerFix
---> gmake LINUX
Iam able to do the chmod command but when I run the second command I get... (2 Replies)
Here is a puzzler.
To start, let me say that I've done a search on this issue and it is definitely not related to line endings being encoded in windows returns.
I get this error when I run SOME perl scripts. I have a script called hello_world.pl. I do $cp hello_world.pl new_hello_world.pl... (0 Replies)
Hi Gurus,
I am new to scripting and needs your help in expect script used for telnet. I wrote a simple script as
#!/usr/bin/expect-5.43 -f
spawn telnet localhost 2233
expect "password:"
send "secret\r"
send "i data.cnbc.com\r"
send "exit\r"
expect eof
When I am trying to execute... (2 Replies)
Hi
I am running a script:
#!bin/bash
set -x
echo"select * from celldatamap;" || sqlcsv -v -h -s ',' -d MTNSA11G -u datasafe -p datasafe > andrea.csv
When I run my script
./tablescript.sh
I get the following error:
$ ./tablescript.sh (3 Replies)
Hi All,
I'm not confortable in writing script, can someone can help me, when I run that script below i found this error code : -bash: ./script.sh: /bin/sh.: bad interpreter:
Here is the script
for i in *
x=${i##*.}
z=$(perl -e 'print time;')
t=$(echo $z-$x|bc)... (12 Replies)
Hi. My name is Caleb (a.k.a RagingNinja) form the whited00r forums. (Whited00r makes custom firmware for iOS devices).
I have been learning and creating simple shells scripts. I have been recently using VIM for Windows or using VirtualBox to run the UBUNTU OS within VirtualBox to create my shell... (2 Replies)
Hi all
I'm hoping this is just me being a muppet, has anyone come across this problem before?
I am writing an application that uses sqlite3 and I have created a database using it -
sqlite3 muse.db
SQLite version 3.6.20
Enter ".help" for instructions
Enter SQL statements terminated with... (2 Replies)
I keep getting this error and I am not sure why.
-bash: ./p4: /bin/ksh^M: bad interpreter: No such file or directory
First I run my makefile and this works fine:
goodmain: main.o
gcc -o goodmain main.o
main.o: main.c
gcc -c main.c
Then I want to limit my output so I... (11 Replies)
Discussion started by: cokedude
11 Replies
LEARN ABOUT X11R4
pivot_root
PIVOT_ROOT(8) System Administration PIVOT_ROOT(8)NAME
pivot_root - change the root filesystem
SYNOPSIS
pivot_root new_root put_old
DESCRIPTION
pivot_root moves the root file system of the current process to the directory put_old and makes new_root the new root file system. Since
pivot_root(8) simply calls pivot_root(2), we refer to the man page of the latter for further details.
Note that, depending on the implementation of pivot_root, root and cwd of the caller may or may not change. The following is a sequence for
invoking pivot_root that works in either case, assuming that pivot_root and chroot are in the current PATH:
cd new_root
pivot_root . put_old
exec chroot . command
Note that chroot must be available under the old root and under the new root, because pivot_root may or may not have implicitly changed the
root directory of the shell.
Note that exec chroot changes the running executable, which is necessary if the old root directory should be unmounted afterwards. Also
note that standard input, output, and error may still point to a device on the old root file system, keeping it busy. They can easily be
changed when invoking chroot (see below; note the absence of leading slashes to make it work whether pivot_root has changed the shell's
root or not).
OPTIONS -V, --version
Display version information and exit.
-h, --help
Display help text and exit.
EXAMPLES
Change the root file system to /dev/hda1 from an interactive shell:
mount /dev/hda1 /new-root
cd /new-root
pivot_root . old-root
exec chroot . sh <dev/console >dev/console 2>&1
umount /old-root
Mount the new root file system over NFS from 10.0.0.1:/my_root and run init:
ifconfig lo 127.0.0.1 up # for portmap
# configure Ethernet or such
portmap # for lockd (implicitly started by mount)
mount -o ro 10.0.0.1:/my_root /mnt
killall portmap # portmap keeps old root busy
cd /mnt
pivot_root . old_root
exec chroot . sh -c 'umount /old_root; exec /sbin/init'
<dev/console >dev/console 2>&1
SEE ALSO chroot(1), pivot_root(2), mount(8), switch_root(8), umount(8)AVAILABILITY
The pivot_root command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux August 2011 PIVOT_ROOT(8)