132 lines
3.7 KiB
Bash
132 lines
3.7 KiB
Bash
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#!/bin/bash
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### Automatically generate UEFI-boot entries
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usage() { printf "Usage:\t aufii \naufii is a simple interactive tool to automatically generate UEFI boot entries. It generates efibootmgr commands and exports them to a small executable. You can safely run the script as it does write nothing without further confirmation. \n [-h]\t<display help>\n "; 1>&2; exit 1; }
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# Compose [and execute] efibootmgr commands
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while getopts :h OPT; do
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case ${OPT} in
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h)
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usage;;
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esac
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done
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shift $((OPTIND-1))
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read -r -p "Simple interactive tool to create UEFI-boot entries. No changes will be written to disk before confirmation. Start now (y/n)? " CHOICE
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case ${CHOICE} in
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y)
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echo ...
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echo ...
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read -r -p "Please specify EFI partition: " str
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# Detect partitions
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#EFI=$(blkid | grep EFI | awk -F ':' '{print $1}')
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EFI=${str}
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EFIU=$(blkid | grep "${EFI}" | awk -F '"' '{print $2}')
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DISK=$(echo "${EFI}" | awk -F 'p' '{print $1}')
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PART=$(echo "${EFI}" | awk -F 'p' '{print $2}')
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AROT=$(lsblk| grep -w "/"|awk -F ' ' '{print $1}'|tail -c4)
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ROOT=$(blkid | grep "${AROT}"| awk -F '"' '{print $2}')
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SWAP=$(blkid | grep swap | awk -F '"' '{print $2}')
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P_S=$(blkid | grep "${SWAP}" | awk -F ':' '{print $1}')
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P_E=$(blkid | grep "${EFI}" | awk -F ':' '{print $1}')
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P_R=$(blkid | grep "${ROOT}"| awk -F ':' '{print $1}')
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echo ...
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echo ...
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read -r -p "Include microcode (amd/intel/no)? (a/i/n) " CHOICE
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case ${CHOICE} in
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a)
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echo "Including amd-ucode"
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UCODE="initrd=\amd-ucode.img"
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echo ...
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echo ...;;
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i)
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echo "Including intel-ucode"
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UCODE="initrd=\intel-ucode.img"
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echo ...
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echo ...;;
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n)
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echo "Not using microcode"
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echo ...
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echo ...;;
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esac;;
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n)
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echo "Aborted by user"
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exit 1;;
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esac
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shift $((OPTIND-1))
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# Choose kernel
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read -r -p "Choose your kernel: linux, linux-hardened, linux-lts, linux-zen (l/h/s/z) " CHOICE
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case ${CHOICE} in
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l)
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echo "kernel is linux"
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echo ...
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echo ...
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KERN="";;
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h)
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echo "kernel is linux-hardened"
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echo ...
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echo ...
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KERN="-hardened";;
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p)
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echo "kernel is linux-lts"
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echo ...
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echo ...
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KERN="-lts";;
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z)
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echo "kernel is linux-zen"
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echo ...
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echo ...
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KERN="-zen";;
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esac
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shift $((OPTIND-1))
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# Name
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read -r -p "Please label the boot entry (e.g. Arch-Linux): " str
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NAME=${str}
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shift $((OPTIND-1))
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# Compose commands
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FLBK=$(echo "efibootmgr --disk ${DISK} --part ${PART} --create --label \"${NAME}-Fallback\" --loader /vmlinuz-linux${KERN} --unicode 'root=UUID=${ROOT} resume=UUID=${SWAP} rw ${UCODE} initrd=\initramfs-linux${KERN}-fallback.img'")
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LINX=$(echo "efibootmgr --disk ${DISK} --part ${PART} --create --label \"${NAME}\" --loader /vmlinuz-linux${KERN} --unicode 'root=UUID=${ROOT} resume=UUID=${SWAP} rw ${UCODE} initrd=\initramfs-linux${KERN}.img'")
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# Prompt detected partitions and composed commands
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printf "Partitions detected:\nEFI:\t${P_E}\t${EFIU}\nRoot:\t${P_R}\t${ROOT}\nSwap:\t${P_S}\t${SWAP}\n"
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echo ...
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echo ...
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echo "Composed commands:"
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echo ...
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echo "${FLBK}"
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echo ...
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echo "${LINX}"
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echo ...
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echo "To add additional kernel parameters just choose the first option in the next step and edit the file before executing it."
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echo ...
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echo ...
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# Write to disk and execute or abort
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write_exec (){
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echo "#!/bin/bash" > UEFI_gen${KERN}
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echo "${FLBK}" >> UEFI_gen${KERN}
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echo "${LINX}" >> UEFI_gen${KERN}
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echo "exit 0" >> UEFI_gen${KERN}
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echo "# See man efibootmgr" >> UEFI_gen${KERN}
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chmod +x UEFI_gen${KERN}
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printf "Commands written to file UEFI_gen${KERN}"
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}
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read -r -p "Create executable, create and execute (sets UEFI boot entries) or abort (c/ce/a)? " CHOICE
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case ${CHOICE} in
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c) # write to file
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write_exec;;
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ce) # write to file and execute it
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write_exec
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./UEFI_gen${KERN}
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printf "Changes written, poweroff and restart, don't reboot.";;
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a) # abort
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printf "Aborted, no changes written to disk.\n";;
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esac
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shift $((OPTIND-1))
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exit 0
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