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98 lines
1.9 KiB
Bash
Executable File
98 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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set -e
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rm -rf /tmp/*
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for f in $(ls | grep -vE 'dev|sys|proc|tmp|export|mnt')
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do
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cp -a $f /tmp
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done
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mkdir -m 555 /tmp/dev /tmp/proc /tmp/sys /tmp/mnt
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mkdir -m 1777 /tmp/tmp
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cd /tmp/dev
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# start from clean slate
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rm -rf *
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mknod -m 666 null c 1 3
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mknod -m 666 full c 1 7
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mknod -m 666 ptmx c 5 2
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mknod -m 644 random c 1 8
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mknod -m 644 urandom c 1 9
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mknod -m 666 zero c 1 5
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mknod -m 666 tty c 5 0
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mknod -m 600 console c 5 1
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mknod -m 600 tty0 c 4 11
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mknod -m 600 tty1 c 4 12
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mknod -m 600 ttyS0 c 4 64
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mknod -m 600 hvc0 c 229 2
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mknod -m 600 fuse c 10 229
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# we are using sata emulation at present
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mknod -m 600 sda b 8 0
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mknod -m 600 sda1 b 8 1
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mknod -m 600 sda2 b 8 2
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mknod -m 600 sda3 b 8 3
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mknod -m 600 sda4 b 8 4
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mknod -m 600 sda5 b 8 5
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mknod -m 600 sda6 b 8 6
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mknod -m 600 sdb b 8 16
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mknod -m 600 sdb1 b 8 17
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mknod -m 600 sdb2 b 8 18
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mknod -m 600 sdb3 b 8 19
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mknod -m 600 sdb4 b 8 20
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mknod -m 600 sdb5 b 8 21
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mknod -m 600 sdb6 b 8 22
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mknod -m 600 xvdf b 8 23
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mknod -m 600 xvdf1 b 8 24
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# mount points in /dev
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mkdir pts mqueue shm
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# symlinks
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ln -s /proc/kcore core
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ln -s /proc/self/fd fd
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ln -s /proc/self/fd/0 stdin
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ln -s /proc/self/fd/1 stdout
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ln -s /proc/self/fd/2 stderr
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# loop devs
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mknod -m 600 loop-control c 10 237
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mknod -m 600 loop0 c 7 0
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mknod -m 600 loop1 c 7 1
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mknod -m 600 loop2 c 7 2
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mknod -m 600 loop3 c 7 3
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mknod -m 600 loop4 c 7 4
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mknod -m 600 loop5 c 7 5
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mknod -m 600 loop6 c 7 6
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mknod -m 600 loop7 c 7 7
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# these three files are bind mounted in by docker so they are not what we want
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cat << EOF > /tmp/etc/hosts
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127.0.0.1 localhost
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::1 localhost ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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EOF
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cat << EOF > /tmp/etc/resolv.conf
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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nameserver 2001:4860:4860::8888
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nameserver 2001:4860:4860::8844
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EOF
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printf 'moby' > /tmp/etc/hostname
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rm /tmp/bin/mkinitrd.sh
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cd /tmp
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find . | cpio -H newc -o > /mnt/initrd.img
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