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Improved createFstab function

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Krizsán Péter 2024-11-23 16:36:03 +01:00
parent 1e85600b9d
commit 55d4a3a4cc
1 changed files with 32 additions and 30 deletions
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56
libs/functions.sh
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@ -30,13 +30,9 @@ patchKernelVersion()
# Function that createst an fstab based on the incoming folder
createFstab()
{(
# Get mount info from lsblk output
# Check if we got a mount point as a parameter
local DIR_ROOT
local DIR_BOOT
local LSBLK_INFO
LSBLK_INFO=$(lsblk -l -o MOUNTPOINT,PATH,NAME,PKNAME,PARTUUID,FSTYPE,PTTYPE | sed "/^ /d")
# Check if we got a mount point as a parameter
if [ -n "$1" ] ; then
# In case of an invalid mount point (not existing folder) we return here
if [ ! -d "$1" ] ; then
@ -45,38 +41,44 @@ createFstab()
fi
# If a mount point is given then we generate fstab based on that mount point.
DIR_ROOT="^$1 "
DIR_BOOT="^$1/boot "
DIR_ROOT="$1 "
DIR_BOOT="$1/boot "
else
# No mount point is given. We generate fstab for the current running system.
DIR_ROOT="^/ "
DIR_BOOT="^/boot "
DIR_ROOT="/ "
DIR_BOOT="/boot "
fi
# Print out the header part of our fstab
printf "# Begin /etc/fstab\n\n"
printf '%-45s %-11s %-4s %-16s %-4s %-10s\n' "# File system (PARTUUID)" "mount-point" "type" "options" "dump" "fsck"
printf '%-49s%-15s%-8s%-20s%-8s%-10s\n' "# File system (PARTUUID)" "mount-point" "type" "options" "dump" "fsck"
printf '#%104s\n\n' "order"
# Find the root mount point and print out if found
DIR_ROOT=$(grep "$DIR_ROOT" <<< "$LSBLK_INFO")
if [ -n "$DIR_ROOT" ] ; then
printf '%-45s %-11s %-4s %-16s %-4s %-10s\n' "PARTUUID=$(awk '{print $5}' <<< "$DIR_ROOT")" / "$(awk '{print $6}' <<< "$DIR_ROOT")" defaults 1 1
local PUID
local FST
local PAT
local PF="PARTUUID=%-40s%-15s%-8s%-20s%-8s%-10s\n"
local PRI=0
local IFS=$'\n'
for L in $(lsblk -l -o MOUNTPOINT,PATH,NAME,PKNAME,PARTUUID,FSTYPE | tail -n +2) ; do
PUID=$(awk '{print $5}' <<< "$L")
if [ -z "$PUID" ] ; then
continue
fi
# Find the boot mount point and print out if found
DIR_BOOT=$(grep "$DIR_BOOT" <<< "$LSBLK_INFO")
if [ -n "$DIR_BOOT" ] ; then
printf '%-45s %-11s %-4s %-16s %-4s %-10s\n' "PARTUUID=$(awk '{print $5}' <<< "$DIR_BOOT")" /boot "$(awk '{print $6}' <<< "$DIR_BOOT")" noauto,defaults 0 0
FST=$(awk '{print $6}' <<< "$L")
PAT=$(awk '{print $2}' <<< "$L" | sed "s|/dev/|/mnt/|g")
if [[ $L == "$DIR_ROOT"* ]] ; then
printf "$PF" "$PUID" / "$FST" defaults 1 1
elif [[ $L == "$DIR_BOOT"* ]] ; then
printf "$PF" "$PUID" /boot "$FST" noauto,defaults 0 0
elif [[ $L == "[SWAP]"* ]] ; then
PRI=$((PRI+1))
printf "$PF" "$PUID" swap "$FST" "pri=$PRI" 0 0
else
printf "$PF" "$PUID" "$PAT" "$FST" defaults 0 0
fi
done
# Find the swap partition and print out if found
local DIR_SWAP
DIR_SWAP=$(grep "^\[SWAP\] " <<< "$LSBLK_INFO")
if [ -n "$DIR_SWAP" ] ; then
printf '%-45s %-11s %-4s %-16s %-4s %-10s\n' "PARTUUID=$(awk '{print $5}' <<< "$DIR_SWAP")" swap "$(awk '{print $6}' <<< "$DIR_SWAP")" pri=1 0 0
fi
# Print out the closing line of out fstab
# Print out the closing line of fstab
printf "\n# End /etc/fstab\n"
)}