If you ever forget root password of your Dedicated Server while your Hosting provider doesnt have IPMI nor using VMware, there are simple ways to do this.
First you need to boot the server with Rescue Disk (sysrcd), in this case I'm reloading the server with sysrcd 4.3.1 (Rescue System)
Login to the server with the detail provided with sysrcd, root and password.
Once you're inside sysrcd, you have too see which one is root volume!
Type this command :
it will results like this
Create a temp directory where we will mount the volume:
Now we have to mount root volume in the directory we just made:
Now you can see all directory of the server
Continue with chroot
You can execute this command to change root password:
Once done, you can reboot your server and login with the new root password. Enjoy..cD
First you need to boot the server with Rescue Disk (sysrcd), in this case I'm reloading the server with sysrcd 4.3.1 (Rescue System)
Login to the server with the detail provided with sysrcd, root and password.
Once you're inside sysrcd, you have too see which one is root volume!
Type this command :
fdisk -l
it will results like this
Disk /dev/sda: 232.9 GiB, 250000000000 bytes, 488281250 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000cc4a7
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 514047 256000 83 Linux
/dev/sda2 514048 488280063 243883008 8e Linux LVM
Disk /dev/mapper/vg-root: 227.7 GiB, 244511145984 bytes, 477560832 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/vg-tmp: 1 GiB, 1073741824 bytes, 2097152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/vg-swap: 3.9 GiB, 4127195136 bytes, 8060928 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
As you can see, it is: /dev/mapper/vg-rootCreate a temp directory where we will mount the volume:
mkdir /mnt/systmp
Now we have to mount root volume in the directory we just made:
mount /dev/mapper/vg-root /mnt/systmp
Now you can see all directory of the server
dir
Continue with chroot
chroot /mnt/systmp /bin/bash
You can execute this command to change root password:
passwd "your new password"
Once done, you can reboot your server and login with the new root password. Enjoy..cD
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