Last active
November 30, 2022 22:59
-
-
Save fjkz/0573c4683bd1bcef26b0 to your computer and use it in GitHub Desktop.
Create a rootfs environment for chroot building.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/sh | |
| # | |
| # Create a rootfs environment for chroot building. | |
| # | |
| # Requires | |
| # - OS installing CDROM at the current directory, | |
| # - the root authority. | |
| # | |
| # mount install cd | |
| mkdir /mnt/cdrom | |
| mount CentOS-7-x86_64-Minimal-1503-01.iso /mnt/cdrom -t iso9660 -o loop | |
| # mount squashfs | |
| mkdir /mnt/squashfs | |
| mount /mnt/cdrom/LiveOS/squashfs.img /mnt/squashfs -t squashfs | |
| # mount rootfs | |
| mkdir /mnt/rootfs | |
| mount /mnt/squashfs/LiveOS/rootfs.img /mnt/rootfs -t ext4 | |
| # copy rootfs | |
| cp -r /mnt/rootfs rootfs | |
| umount /mnt/rootfs | |
| umount /mnt/squashfs | |
| umount /mnt/cdrom | |
| rm -r /mnt/rootfs /mnt/squashfs /mnt/cdrom | |
| # mount dvd image under rootfs | |
| mkdir rootfs/mnt/cdrom | |
| mount CentOS-7-x86_64-Minimal-1503-01.iso rootfs/mnt/cdrom -t iso9660 -o loop | |
| # chroot | |
| mount -o bind /dev rootfs/dev/ | |
| mount -t proc none rootfs/proc/ | |
| mount -o bind /sys rootfs/sys/ | |
| chroot rootfs /bin/bash -xe << _END_CHROOT_ | |
| cd /mnt/cdrom/Packages | |
| rpm -ivh --nodeps rpm-4.11.1-25.el7.x86_64.rpm | |
| rpm -ivh --nodeps yum-3.4.3-125.el7.centos.noarch.rpm | |
| # add the cdrom image to yum repository | |
| cat << _END_ > /etc/yum.repos.d/cdrom.repo | |
| [cdrom] | |
| name=Install CD-ROM | |
| baseurl=file:///mnt/cdrom | |
| enabled=0 | |
| gpgcheck=1 | |
| gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-CentOS-7 | |
| _END_ | |
| yum --disablerepo=\* --enablerepo=cdrom -y reinstall yum | |
| yum --disablerepo=\* --enablerepo=cdrom -y groupinstall "Minimal Install" | |
| # yum --disablerepo=\* --enablerepo=cdrom -y install <required packages> | |
| rm /etc/yum.repos.d/cdrom.repo | |
| _END_CHROOT_ | |
| # Clean up | |
| umount rootfs/mnt/cdrom | |
| umount rootfs/dev | |
| umount rootfs/proc | |
| umount rootfs/sys |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
CentOS-7-x86_64-Minimal-2009.iso