forked from synit/synit
95 lines
2.1 KiB
Bash
95 lines
2.1 KiB
Bash
#!/bin/sh
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ROOTDEV=/dev/vda
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CONSOLE=/dev/ttyAMA0
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NEWROOT=/mnt
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in_initramfs=true
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if [ -f /proc/mounts ]
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then
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in_initramfs=false
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fi
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if [ $in_initramfs = true ]
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then
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echo "Mounting basics."
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mount -t devtmpfs none /dev
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mkdir /dev/pts
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mkdir /dev/shm
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mount -t devpts none /dev/pts
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mount -t proc none /proc
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mount -t sysfs none /sys
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mount -t tmpfs -o nodev,nosuid,noexec none /dev/shm
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mount -t tmpfs none /run
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# Docker wants this
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mount -t cgroup2 none /sys/fs/cgroup
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echo "Loading virtio modules."
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# The "virt" aarch64 qemu machine needs these to get user networking going
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modprobe virtio_pci
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modprobe virtio_net
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# And this is for the disk
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modprobe virtio_blk
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echo "Loading btrfs."
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modprobe btrfs &
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echo "Configuring network."
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ifconfig lo 127.0.0.1 up
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ifconfig eth0 up
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udhcpc -i eth0 &
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wait
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echo "Attempting to mount ${ROOTDEV} on ${NEWROOT} ..."
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if mount ${ROOTDEV} ${NEWROOT}
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then
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echo "Mount successful."
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else
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echo "Mount unsuccessful. Building new root."
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mkfs.btrfs ${ROOTDEV}
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mount ${ROOTDEV} ${NEWROOT}
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apk --repositories-file /etc/apk/repositories -U --allow-untrusted \
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--root ${NEWROOT} --initdb add $(cat /package-list)
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fi
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for f in /etc/apk/repositories /init /package-list /usr/bin/syndicate-server
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do
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echo "Updating $f."
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cp -a $f ${NEWROOT}$f
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done
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echo "Moving mount points."
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for mp in /dev /proc /sys /run
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do
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echo "Moving $mp --> ${NEWROOT}$mp"
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mount -o move $mp ${NEWROOT}$mp
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done
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echo "Killing leftovers."
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kill -15 -1
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sleep 0.2
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kill -9 -1
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echo "Switching root."
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exec switch_root -c ${CONSOLE} ${NEWROOT} /init
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else
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echo "Initializing with real rootfs."
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echo "Re-configuring network."
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ifconfig lo 127.0.0.1 up
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ifconfig eth0 up
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udhcpc -i eth0
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echo "Ensuring installation of /package-list."
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apk add $(cat /package-list)
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fi
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sync
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echo "Dropping to shell."
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# setsid creates a "session", which allows job control to work
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exec setsid sh -c "exec sh -i <${CONSOLE} >${CONSOLE} 2>&1"
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