Ok I just checked this procedure out using GRUB 0.97 and it worked so hopefully it should for you too.
When you turn your system on wait for the GRUB boot load screen to appear, when it does press 'e'
If you have more than one kernel available to boot to you will have to select which kernel you want to edit the startup parameters for and then press 'e' again.
You should then be taken to a screen that shows startup parameters for the kernel you selected. Move down to the line that starts
and press 'e' again. This will now take you to the grub edit prompt.
Use the directional arrow keys to move all the way to the end of the line and add the word 'single' on it's own without the quote marks so you will then have a line similar to this:
Once you have finished editing this line just press enter. You should now be taken back to the previous screen where you can just press b to boot using the modified startup parameter into single user mode. Once at the prompt just use the 'passwd' command and you should be prompted to enter you new password.
All,
I want to run a non-root script as the root user with non-root environment variables with crontab. The non-root user would have environment variables for database access such as Oracle or Sybase. The root user does not have the Oracle or Sybase enviroment variables. I thought you could do... (2 Replies)
Hi folks,
I'm trying to install a program, and I want to place some of the executables into /usr/bin so that they can be executed from any folder on the computer. I've been giveng the root password, but told never to log in directly as root. Instead, I can wait for a password prompt. However, I... (2 Replies)
Hi, yesterday, I changed root's shell in /etc/passwd, cause a mistake then I can not log in root account (can't find correct shell). I attempted to log in single-mode, however, it prompted for single-mode's password then I type root's password but still can not log in.
I'm using AIX 5L version 5.2... (2 Replies)
hi
i am new to unix and i have abig task. i have to \run particular commands having root privileges from a non root user. i know sudo is one of the way but i need sum other approach kindly help
Thanks (5 Replies)
Hi All
Hope it's okay to post on this sub-forum, couldn't find a better place
I've got a 480R running solaris 8 with veritas volume manager managing all filesystems, including an encapsulated root disk (I believe the root disk is encapsulated as one of the root mirror disks has an entry under... (1 Reply)
Hi All
After downloading ZFS documentation from oracle site, I am able to successfully migrate UFS root FS without zones to ZFS root FS. But in case of UFS root file system with zones , I am successfully able to migrate global zone to zfs root file system but zone are still in UFS root file... (2 Replies)
I access over 100 SUSE SLES servers as root from my admin server, via ssh sessions using ssh keys, so I don't have to enter a password. My SUSE Admin server is setup in the following manner:
1) Remote root access is turned off in the sshd_config file.
2) I am the only user of this admin... (6 Replies)
I need to list users in /etc/passwd with root's GID or UID or /root as home directory
If we have these entries in /etc/passwd
root:x:0:0:root:/root:/bin/bash
rootgooduser1:x:100:100::/home/gooduser1:/bin/bash
baduser1:x:0:300::/home/baduser1:/bin/bash... (6 Replies)
I had a question in my test which asked where suppose user B has a program with 's' bit set. Can user A run this program and gain root privileges in any way?
I suppose not as the suid program run with privileges of owner and this program will run with B's privileges and not root. (1 Reply)
i do not have root on a solairs 10 server , however i do have the root role, i was wondering if I can change the root password as a a role with the passwd command? I have not tried yet.
and do i have to use the # chgkey -p afterwards?
i need to patch is why i am asking.
thanks (1 Reply)
Discussion started by: goya
1 Replies
LEARN ABOUT CENTOS
switch_root
SWITCH_ROOT(8) System Administration SWITCH_ROOT(8)NAME
switch_root - switch to another filesystem as the root of the mount tree
SYNOPSIS
switch_root [-hV]
switch_root newroot init [arg...]
DESCRIPTION
switch_root moves already mounted /proc, /dev and /sys to newroot and makes newroot the new root filesystem and starts init process.
WARNING: switch_root removes recursively all files and directories on the current root filesystem.
OPTIONS -h, --help
show help and exit
-V, --version
show version number and exit
RETURN VALUE
switch_root returns 0 on success and 1 on failure.
NOTES
switch_root will fail to function if newroot is not the root of a mount. If you want to switch root into a directory that does not meet
this requirement then you can first use a bind-mounting trick to turn any directory into a mount point:
mount --bind $DIR $DIR
SEE ALSO mount(8), chroot(2), init(8), mkinitrd(8)AUTHORS
Peter Jones <pjones@redhat.com>
Jeremy Katz <katzj@redhat.com>
Karel Zak <kzak@redhat.com>
AVAILABILITY
The switch_root command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2009 SWITCH_ROOT(8)