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Add enter-chroot.sh

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Kron4ek 2022-02-12 13:53:23 +05:00
parent 377730cd96
commit 4922c0fd23
2 changed files with 54 additions and 2 deletions
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9
README.md
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@ -151,14 +151,19 @@ There are three main ways to update Conty and get the latest packages, use which
## How to create your own Conty executables
If you want to create Arch-based container, use the **create-arch-bootstrap.sh** script, it will download latest Arch Linux bootstrap and will install latest packages into it. If you want to use any other distro, then you need to manually obtain it from somewhere. Root rights are required for this step, because chroot is used here.
If you want to create an Arch-based container, use the **create-arch-bootstrap.sh** script, it will download latest Arch Linux bootstrap and will install latest packages into it. If you want to use any other distro, then you need to manually obtain it from somewhere. Root rights are required for this step, because chroot is used here.
```
./create-arch-bootstrap.sh
```
You can edit the script if you want to include different set of packages inside
the container.
When distro is obtained, use the **create-conty.sh** script to create a squashfs (or dwarfs) image and pack everything needed into a single executable.
When distro is obtained, you can use the **enter-chroot.sh** script to chroot
into the bootstrap and do some manual modifications (for instance, modify some
files, install/remove packages, etc.). This step is optional and you can
skip it if you don't need it.
After that use the **create-conty.sh** script to create a squashfs (or dwarfs) image and pack everything needed into a single executable.
```
./create-conty.sh
```

47
enter-chroot.sh Executable file
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@ -0,0 +1,47 @@
#!/usr/bin/env bash
# Root rights are required
if [ $EUID != 0 ]; then
echo "Root rights are required!"
exit 1
fi
script_dir="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
bootstrap="${script_dir}"/root.x86_64
if [ ! -d "${bootstrap}" ]; then
echo "Bootstrap is missing"
exit 1
fi
# First unmount just in case
umount -Rl "${bootstrap}"
mount --bind "${bootstrap}" "${bootstrap}"
mount -t proc /proc "${bootstrap}"/proc
mount --bind /sys "${bootstrap}"/sys
mount --make-rslave "${bootstrap}"/sys
mount --bind /dev "${bootstrap}"/dev
mount --bind /dev/pts "${bootstrap}"/dev/pts
mount --bind /dev/shm "${bootstrap}"/dev/shm
mount --make-rslave "${bootstrap}"/dev
rm -f "${bootstrap}"/etc/resolv.conf
cp /etc/resolv.conf "${bootstrap}"/etc/resolv.conf
mkdir -p "${bootstrap}"/run/shm
echo "Entering chroot"
echo "To exit the chroot, perform the \"exit\" command"
chroot "${bootstrap}" /usr/bin/env LANG=en_US.UTF-8 TERM=xterm PATH="/bin:/sbin:/usr/bin:/usr/sbin" /bin/bash
echo "Exiting chroot"
umount -l "${bootstrap}"
umount "${bootstrap}"/proc
umount "${bootstrap}"/sys
umount "${bootstrap}"/dev/pts
umount "${bootstrap}"/dev/shm
umount "${bootstrap}"/dev