Difference between revisions of "Building a custom CentOS 7 install CD"
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<pre> | <pre> | ||
| − | wget | + | wget https://mirrors.edge.kernel.org/centos/7/isos/x86_64/CentOS-7-x86_64-NetInstall-1810.iso |
| − | sudo mount -o loop -t iso9660 CentOS-7-x86_64-NetInstall- | + | sudo mount -o loop -t iso9660 CentOS-7-x86_64-NetInstall-1810.iso /var/mnt/iso/ |
rsync -avHl /var/mnt/iso/ centos7/ | rsync -avHl /var/mnt/iso/ centos7/ | ||
</pre> | </pre> | ||
| − | Create a kickstart file and edit as needed. | + | Create a kickstart file and edit as needed. Example config: |
| + | |||
| + | https://gist.github.com/1ea792e140eedcf0985a04fda7b2dfdc | ||
Create splash image. | Create splash image. | ||
| − | Update isolinux.cfg file as follows. | + | Update isolinux.cfg file as follows. For EFI hosts use the EFI/BOOT/grub.cfg file. |
| + | |||
| + | <pre> | ||
<pre> | <pre> | ||
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Once you have made all changes you can create the iso file. | Once you have made all changes you can create the iso file. | ||
| − | mkisofs -o centos7.iso -V 'CentOS 7 x86_64' -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T centos7 | + | mkisofs -o /var/tmp/centos7.iso -V 'CentOS 7 x86_64' -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T centos7 |
EFI hosts require a slightly different command. | EFI hosts require a slightly different command. | ||
| − | + | mkisofs -v -V 'CentOS 7 x86_64' -J -R -cache-inodes -o ../centos7_kickstart-efi.iso -b isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -b images/efiboot.img -no-emul-boot -boot-load-size 18755 ./ | |
| − | mkisofs -v -V 'CentOS 7 x86_64' -cache-inodes -o ../centos7_kickstart-efi.iso -b isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -b images/efiboot.img -no-emul-boot -boot-load-size 18755 | + | |
Latest revision as of 14:05, 23 August 2019
wget https://mirrors.edge.kernel.org/centos/7/isos/x86_64/CentOS-7-x86_64-NetInstall-1810.iso sudo mount -o loop -t iso9660 CentOS-7-x86_64-NetInstall-1810.iso /var/mnt/iso/ rsync -avHl /var/mnt/iso/ centos7/
Create a kickstart file and edit as needed. Example config:
https://gist.github.com/1ea792e140eedcf0985a04fda7b2dfdc
Create splash image.
Update isolinux.cfg file as follows. For EFI hosts use the EFI/BOOT/grub.cfg file.
<pre> label linux menu label ^Install CentOS 7 - Kickstart kernel vmlinuz append initrd=initrd.img inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 inst.ks=cdrom:/ks.cfg inst.repo=http://mirrors.liquidweb.com/CentOS/7/os/x86_64/
Once you have made all changes you can create the iso file.
mkisofs -o /var/tmp/centos7.iso -V 'CentOS 7 x86_64' -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T centos7
EFI hosts require a slightly different command.
mkisofs -v -V 'CentOS 7 x86_64' -J -R -cache-inodes -o ../centos7_kickstart-efi.iso -b isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -b images/efiboot.img -no-emul-boot -boot-load-size 18755 ./
