Hi

I've been attempting to install centos 7.7.1908 using pxeboot and a kickstart file, but am having problems installing packages.

The installation goes through fine when my packages list looks like:
%packages
@base
@core
%end

However when I add the development package:
%packages
@base
@core
@development --optional
%end

It runs through until 'Starting package installation process', then comes up with an error dialog:

The following software marked for installation has errors.
This is likely caused by an error with your installation source.
mock-1.4.20-1e7.noarch requires /usr/bin/python3.6
Python36-chardet-3.0.4-1.el7.noarch requires /usr/bin/python3.6
.....
<more packages listed>

Does anyone know what this message means ?
Is it saying it did not find the required packages in Packages directory ?

Do I need to somehow add something to the initrd image ?

Does anyone know where it initially gets the information to generate /usr/bin from ? Where should it be getting python3.6 from during the installation ?

Can someone clarify what the directory structure for the install should be ?

I currently have:
isofiles

images

efiboot.img pxeboot TRANS.TBL

isolinux

boot.cat boot.msg grub.conf initrd.img isolinux.bin isolinux.cfg ks memtest splash.png TRANS.TBL vesamenu.c32 vmlinuz

LiveOS

squashfs.img TRANS.TBL

Packages

<required packages>

repodata

03dde1157310b4a6d8e9128de19651c147a71150d406f3efaaf12f7eb83a1f35-primary.xml.gz

177815eb15f48fcab91407f00675f26cbc13f07601c7d971b6255957faa2d1e0-other.sqlite.bz2

17f82b7ec55c8c3c30bd0093d3241f1824aa4dafde0081f9a31829dbb7e3738e-filelists.sqlite.bz2

4af1fba0c1d6175b7e3c862b4bddfef93fffb84c37f7d5f18cfbff08abc47f8a-c7-x86_64-comps.xml.gz

521f322f05f9802f2438d8bb7d97558c64ff3ff74c03322d77787ade9152d8bb-c7-x86_64-comps.xml

7a2197223a2689b44594b09351dead84fe2d8cd0459be3f885bb985bb28af7ca-primary.sqlite.bz2

84ff0ada5bdbf970afd2791ab1850d0596e41b5442e1ec3f7073974b222b7be9-filelists.xml.gz

a7120e4fc4c651382e22fb4c126798235095a1ce58c2c0783cc6d31c2672f544-other.xml.gz

repomd.xml

repomd.xml.asc

TRANS.TBL

TRANS.TBL

I have attached the kickstart file I am using.

Attached Files

test_centos7_ksfile.txt (6.0 KB, 46 views)

The silly question; are you sure all the dependencies are on the server? Maybe one did not get copied to it, or is corrupted?

What if you exclude the --optional line, does it work then? If so, what is missing?

Kickstart file looks fine, from the error it must be something in the repo it is pulling from that is causing the error.

Hi

Thank you for the reply.

Yes indeed if I remove --optional the install seems to go through fine.

Naively I got hold of the everything iso and simply replaced the 'Packages' directory in my tree with the one from the everything iso, but I still see the issue.

If I use the full Everything iso as a base for my custom kickstart tree the kickstart install goes through fine (with the --optional included and indeed all the other groups enabled).

So it does look like there is some dependency information missing, but it's not simply a case of providing the packages in 'Packages' - I guess there is also some other relevant dependency information, but given the commps.xml files are identical I'm not sure what (repomd.xml?)

Does anyone know of somewhere I can find information to get a little more understanding of how dependencies are determined and what files are used to pickup the correct packages ? I do have some centos 6 scripts that determine package dependencies and copy the dependent packages in to 'packages' which I will get working for centos 7, but it seems more than just copying required packages is required.

I'll mark this as resolved, since I can now do a full install.

Thank you again for your help.