waja zrewidował ten Gist 7 years ago. Przejdź do rewizji
1 file changed, 50 insertions
cloudatcost-pxe.sh(stworzono plik)
| @@ -0,0 +1,50 @@ | |||
| 1 | + | #!/usr/bin/env bash | |
| 2 | + | ||
| 3 | + | cdr2mask () | |
| 4 | + | { | |
| 5 | + | # Number of args to shift, 255..255, first non-255 byte, zeroes | |
| 6 | + | set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0 | |
| 7 | + | [[ $1 -gt 1 ]] && shift ${1} || shift | |
| 8 | + | echo "${1-0}.${2-0}.${3-0}.${4-0}" | |
| 9 | + | } | |
| 10 | + | ||
| 11 | + | cd /boot || exit 1 | |
| 12 | + | wget --continue --output-document=/boot/netboot.xyz.lkrn https://boot.netboot.xyz/ipxe/netboot.xyz.lkrn | |
| 13 | + | ||
| 14 | + | _Dev="$(ip route list | awk '/^default/ {print $5}')" | |
| 15 | + | _Gateway="$(ip route list | awk '/^default/ {print $3}')" | |
| 16 | + | _IP="$(ip -o -4 addr show "${_Dev}" | awk '{print $4}')" | |
| 17 | + | _Netmask="$(cdr2mask "${_IP#*/}")" | |
| 18 | + | _IP=${_IP%/*} | |
| 19 | + | ||
| 20 | + | cat <<_EOF_ > /boot/netboot.xyz-initrd | |
| 21 | + | #!ipxe | |
| 22 | + | #/boot/netboot.xyz-initrd | |
| 23 | + | imgfree | |
| 24 | + | set net0/ip ${_IP%/*} | |
| 25 | + | set net0/netmask ${_Netmask} | |
| 26 | + | set net0/gateway ${_Gateway} | |
| 27 | + | set dns 208.67.222.222 | |
| 28 | + | ifopen net0 | |
| 29 | + | chain --autofree https://boot.netboot.xyz | |
| 30 | + | _EOF_ | |
| 31 | + | ||
| 32 | + | cat <<_EOF_ > /etc/grub.d/09_custom | |
| 33 | + | echo " | |
| 34 | + | menuentry 'netboot.xyz' { | |
| 35 | + | set root='hd0,msdos1' | |
| 36 | + | linux16 /netboot.xyz.lkrn | |
| 37 | + | initrd16 /netboot.xyz-initrd | |
| 38 | + | } | |
| 39 | + | " | |
| 40 | + | _EOF_ | |
| 41 | + | chmod +x /etc/grub.d/09_custom | |
| 42 | + | ||
| 43 | + | update-grub2 || { grub2-mkconfig -o /boot/grub2/grub.cfg; grub2-set-default 0; } | |
| 44 | + | ||
| 45 | + | echo "Network Interface: ${_Dev}" | |
| 46 | + | echo "IP: ${_IP%/*}" | |
| 47 | + | echo "Netmask: ${_Netmask}" | |
| 48 | + | echo "Gateway: ${_Gateway}" | |
| 49 | + | ||
| 50 | + | reboot | |
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