10-10-2017
7 More Discussions You Might Find Interesting
1. Solaris
When I installed the SOLARIS 10 OS first time, the desktop would not start up, this was because of network setup. Reinstalled worked. After a week due to some problem I had to reinstall OS, installation went fine and but when i reboot I get this error.
cannot find mis/krtld
boot error loading... (0 Replies)
Discussion started by: johncy_j
0 Replies
2. Solaris
Hi,
My Solaris 5.8 system keeps getting this error at boot -
"Can't set vol root to /vol"
then
/usr/sbin/vold: can't set vol root to /vol: Resource temporarily unavailiable
Any idea what is wrong, and how do I fix it? (0 Replies)
Discussion started by: ghuber
0 Replies
3. UNIX for Advanced & Expert Users
Hi,
My Solaris 5.8 system keeps getting this error at boot -
"Can't set vol root to /vol"
then
/usr/sbin/vold: can't set vol root to /vol: Resource temporarily unavailiable
Any idea what is wrong, and how do I fix it? (1 Reply)
Discussion started by: ghuber
1 Replies
4. Shell Programming and Scripting
I am new to scripting.
I am using the following script . BART.dat contains the string 'Y' .
#!/bin/ksh
cd /work/TCI/data_out
file=`cat BART.dat`
echo "$file"
if ; then
echo "true"
fi
When i am executing the above script i am getting the following error
./s.ksh: : not found
... (2 Replies)
Discussion started by: ammu
2 Replies
5. UNIX for Dummies Questions & Answers
I keep getting an error message in a script im writing, this line is allways pointed out.
if
and this is the message i keep getting.
line 32: [: 8: unary operator expected
Whats wrong with it?
Please Help. (5 Replies)
Discussion started by: chapmana
5 Replies
6. SCO
hi
SCO Unix 5.0.6 doesn't boot due to this problem:
not a directory
boot not found
cannot open
stage 1 boot failure: error loading hd (40)/boot
Knows someone howto solve it? (16 Replies)
Discussion started by: ccc
16 Replies
7. Linux
Hi,
I am doing PXE boot for RHEL6.4 on EFI and want to display custom messsage before loading vmlinuz and initrd.img, which is not working.
boot server side (In case of BIOS client):
In /var/lib/tftpboot/default file I am putting the message in below format:
SAY hello world
boot... (0 Replies)
Discussion started by: indus123
0 Replies
LEARN ABOUT XFREE86
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)