what is the meaning of root devise????
kernel wants the '/' mounting nd i think it represting the root directory so means directory also work as a storage devise.
nd another thing by changing in every file presenting in fstab file i can change the whole setting of my system?
actually root device is your first ordered (or active or master) device in system.
i can be used it that i meant so "because kernel must mount as rootfs with appropriate labeled "in" correct root device.
However let's belows. /dev/sda is your root device..( /dev/ dir is pseudo fs that created by kernel(udev) for attached stroge units) /dev/sda2 is your root partition device points to its own mount point "/" / is your root mount point for access files in root partition. (you can think "/" is like C drive in windows )
Hi everyone, this is the first time I have ever properly used Linux - I run Red Hat Linux 8. I have two hardrives, my main 80gig, and my "extra" 15gig, I would like to be able to gain access to my 15gig and view the files. I know to view files on a floppy disk or a cd you need to mount the... (1 Reply)
Hello,
How do I mount root on networked machines in Solaris 2.5 and 7? I did it before but I lost the clue. Was it something in vfstab? root=?
I want to give some machines or users rootaccess on other machines on the lan. Do I specify users or machines at the root is option?
Thanks in... (1 Reply)
Hi,
I'm looking to mount a cd on an old AViiON system we have. No one here really has any expertise with this platform so any help will be appreciated. I * think* the device is sd(apsc(pci(1),B,0,7),5,0), however I'm not sure at all.
Thanks! (0 Replies)
Hello, I am trying to mount a second scsi hard drive on a SCO box. (5.0.5.) And I can't figure out what the device file for it is so I can mount it. Can anyone help me?
thanks. (1 Reply)
Hi
I mounted disk which have two partition C: , D: ( i am not sure if both partition have same file system) with this commad:
mount -t msdosfs /dev/ad2s1 /mnt/windows
but this is mounted only first partition with fat file system. ( in windows XP C: )
How can i mount another partition... (2 Replies)
I'm trying to find a correct command that will mount a filesystem ext3 the device /dev/sda1 to mount point /mnt/usb but not allow any programs to run from it.
I want to be honest as I've read the forum rules... This is a homework question BUT, i'm generally interested in the correct process and... (3 Replies)
My previous post seems to be erased and I didn't get any help. I'm logged as root now but no mounting command seems to work, I've tried:
Mount -t vfat /dev/sdc1 /mnt/USB
Changing "sdc1" for hda1-7, and sdc1-7, and still nothing. Sometimes i get:
"special device not found" and others "device... (4 Replies)
I generally use mount many times to mount an iso image or as a bind between directories or mounting a squash file system. Y does one require root permission to do a mount --bind between two of his own directories or just mount an iso/squash image in directory he owns? Also I wish mount had an... (0 Replies)
Hello,
I want monting a LUN on a RX2660
I have created a LUN of 100Go with HP StorageWorks EVA and associated to my server.
For the moment I see it with the command below but after i can't used it
# ioscan -fnkC disk
Class I H/W Path Driver S/W State H/W Type Description ... (10 Replies)
Discussion started by: letters
10 Replies
LEARN ABOUT CENTOS
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
Output version information and exit.
-h, --help
Display help 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), mount(8), pivot_root(2), switch_root(8), umount(8)AVAILABILITY
The pivot_root command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux August 2011 PIVOT_ROOT(8)