Displaying 20 results from an estimated 10000 matches similar to: "How to Load Custom CentOS 7 Image"
2020 May 15
1
How to Load Custom CentOS 7 Image
Dear Earl Ramirez,
>I created a custom ISO a couple of years ago [0], you can use it as
>your base of one of the following links[1-4], should be sufficient to
>get you started.
>[0] https://github.com/EarlRamirez/snipeit_iso
In above github project, in https://github.com/EarlRamirez/snipeit_iso/blob/master/isolinux/grub.conf file, there is ?@? symbol for splashimage, and for kernel,
2019 Sep 25
9
How to dump/restore a CentOS 7 system
Hello All,
I guess it is very common for administrative purpose, to dump and restore a CentOS 7 system. I usually use dump/restore commands. However, I?m having trouble to handle installing bootloader and creating initramfs for C7 system. Does anyone know a good document source that details those procedure?
Thank you,
Xinhuan Zheng
2011 Aug 04
3
Interactive PXE install
I've got a system (Supermicro P8SCT) that lacks a floppy or CD and it's old
enough that it won't boot from a USB stick. Before I scrounge an optical
drive to plug in, I thought perhaps I could install over the network, as I
see "legacy LAN boot" in the BIOS menu.
The guides for a LAN install I've found all want to do an automated
kickstart install. Are there any
2012 Jan 04
4
Cannot use kickstart file to install CentOS 6.2 into a blank harddisk
I am trying using a kickstart file to install CentOS 6.2 into a new virtual machine (the MBR sector
of the harddisk is all zero), however I found that the installer cannot go through the harddisk
partition. It failed after I chose "Use All Space" at harddisk partition option.
The error message is:
http://anony.ws/i/bMcTJ.png
"You have not defined a root partition (/), which is
2012 Mar 27
4
centos 6.2 netinstall does not offer "create custom layout" at "Select type of installation " in text mode installation
I want to install centos 6.2 i386 on a pc with the following specs
cpu 1.8 GHz p4
RAM 512 Mbyte
HD: IDE 20 GByte
i have downloaded netinstall iso and the installer proceeds AUTOMATICALLY
in TEXT MODE until the point
that i am asked to select the "Type of Installation" where i am presented
with the following options ONLY
1) Use all space
2) Replace Existing Linux System
3) Use Free
2017 Nov 01
6
Kickstart ksdevice question
This should be easy to answer (I hope).? We routinely kickstart boxes to
use for managing our customers RADIUS/DHCP configurations (along with
other things).? We've had a C7 kickstart in place since I built one in
May and are finally starting to roll it out for new installations.? But,
I'm curious as to what ksdevice= actually does.
With the C6 we routinely used ksdevice=eth0 since we
2014 Dec 03
2
Creating a USB bootable modified netinstall ISO image
I?ve been creating slightly modified CentOS netinstall ISO images using the following steps:
Copy contents of CentOS netinstall ISO image to a temporary directory
Edit isolunux/isolinux.cfg file
Create new ISO image using the following command: mkisofs -o new.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T /tmp/iso
I?ve been using
2019 Aug 21
3
CentOS 5 file system read only issue
Hello Everyone,
We are using CentOS 5 system for certain application. Those are VM guests
running in VMware. There is datastore issue occasionally, causing all file
systems becoming read only file systems. So application stop working, and
opened files cannot be written either. We cannot even ssh login to the
system. Typically we had to power cycle the VM. We are trying to add
reliability to the
2011 Feb 08
4
mount the wrong device after system recovery
Hi,
I am recovering a CentOS 5.4 system. I've copied all partitions into the
recovery system. I've installed grub boot loader. However, the original
system is using /dev/sdb1 for root (/), while the recovery system is
using LVM (/dev/vg0/lv1) for root (/). When recovery system boots, I got
the panic error:
* Mounting /dev/sdb1 on /sysroot
* Mount: mounting
2009 Feb 03
2
kickstart won't kick-off via network
Hello list,
I try to do an automated network installation of centos 5.2, following
the redat documentation at
http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/sysadmin-guide/pt-install-info.html
However, when installing I get promptet for various things, like which
network interface I would like to use for installation, or the location
of the install medium. But thats not what I
2018 Jan 31
1
What is best way of managing isolated network environment?
Hello,
We need to manage isolated network environment so that even though host name and ip address could be same, but they are located in isolated network environment so that?s not a problem. However, that would be very challenging to build a server in such an isolated environment. For example, we could do kickstart to build a server in non-isolated network environment, but for isolated one, we
2014 Dec 17
3
Asymmetric encryption for very large tar file
Am 17.12.2014 um 18:42 schrieb Les Mikesell <lesmikesell at gmail.com>:
> On Wed, Dec 17, 2014 at 11:14 AM, Xinhuan Zheng
> <xzheng at christianbook.com> wrote:
>> I have a requirement that I need to use encryption technology to encrypt
>> very large tar file on a daily basis. The tar file is over 250G size and
>> those are data backup. Every night the server
2010 Sep 24
4
necessary/unused rpm packages
Is there a way to identify if an rpm package is unused, or how much it is
used?
I would like to reduce my load time by removing unused packages in my
kickstart, but do not want to cause problems for users on active systems by
guessing which ones are not necessary (I load everything with kickstart
now). If I could find the packages are not used I could start by excluding
them from a load and be
2014 Dec 19
0
Asymmetric encryption for very large tar file
On Wed, Dec 17, 2014 at 12:14 PM, Xinhuan Zheng <xzheng at christianbook.com>
wrote:
> Hello CentOS list,
> I have a requirement that I need to use encryption technology to encrypt
> very large tar file on a daily basis. The tar file is over 250G size and
> those are data backup. Every night the server generated a 250G data backup
> and it?s tar?ed into one tarball file. I
2020 May 14
1
How to Load Custom CentOS 7 Image
Dear All,
I want to create a CentOS 7 VMWARE VM. I need to install various Runtime libraries, e.g., Tomcat, into the VM. Once all looks good, then I want to make a Custom Image of the entire VM. Later I want to load this Custom Image to a physical HW, so that I don?t need to go through all kinds Runtime installation. Does anyone know how to handle creating a Custom Image and Load to physical HW
2017 Nov 01
2
Kickstart ksdevice question
On 11/01/2017 03:25 PM, Chris Adams wrote:
> Once upon a time, Mark Haney <mark.haney at neonova.net> said:
>> Okay, so it looks like I can simply change ksdevice=eth0? to
>> bootdev=eth0, correct?
> I believe you can just leave both off (IIRC for CentOS 6 as well) if you
> add "ipappend 2" to the pxelinux stanza.
>
I probably should have clarified that
2014 Dec 17
8
Asymmetric encryption for very large tar file
Hello CentOS list,
I have a requirement that I need to use encryption technology to encrypt
very large tar file on a daily basis. The tar file is over 250G size and
those are data backup. Every night the server generated a 250G data backup
and it?s tar?ed into one tarball file. I want to encrypt this big tarball
file. So far I have tried two technologies with no success.
1) generating RSA 2048
2012 Jul 27
2
Modifying a netinstall ISO image
I want to make a very minor change to the netinstall ISO image, namely adding a few parameters to the boot line to automatically kick off a kickstart installation. Here is my approach:
mount -o loop CentOS-6.2-i386-netinstall.iso /mnt
cp -pr /mnt /tmp
cd /tmp/mnt
vi isolinux/isolinux.cfg # Add some stuff to the default append line and reduce timeout
mkisofs -o
2020 May 21
1
External Array Data Migration
Dear All,
Below question has been puzzled me for a while, and don?t know if anyone has experienced such puzzle:
You have an external array attached to a physical hardware. The operating system is CentOS 5. The file system is created on top of LVM on external array & mounted. The CentOS 5 can see the array controller, and manage all LVM configuration, etc. There is data stored in that
2015 Oct 09
4
Annoying license at install
Folks
I have several remotely-located servers, donated by folks not all of
whom are computer geeks, let-alone Linux aware. In earlier versions
of Centos, I directed them to perform a minimal NetInstall (not too
difficult to direct over the phone), and then issue two commands
after the first boot. One was a 'curl' to download a script of mine,
and the second was a dot-command to run