initrd1.xz finit squashfs overlay limit order

https://forum.puppylinux.com/viewtopic.php?f=46&t=1857&start=230

Fix initrd1 finit to avoid overlay limits
https://forum.puppylinux.com/search.php?keywords=newinitrd&t=1857&sf=msgonly&sid=644d7e18713b4db52ac6333155826141


=====================
If you want you can change that by modifying initrd1.xz:

Extract initrd1.xz from standing in the 'live' dir:

mkdir newinitrd        # make dir where the extracted files go
cd newinitrd         # go inside newinitrd directory
xz -dc ../initrd1.xz | cpio -i        # extract  ../initrd1.xz

Open inside newinitrd "linuxrc" with texteditor, find the line "NAME=`basename $x`;" (line 213) and change to
    ############### truncate mountpoint names ##############
    #   NAME=`basename $x`; //ORIGINAL line
        NAME=`basename ${x%.*}`; # remove extension .squashfs
        NAME="${NAME:0:14}""-$a"

    # skip if (truncated) /memory/images/$NAME exists already
    [ -d /memory/images/$NAME ] && continue
    let a=a+1
    #########################################################

Create new initrd1.xz (note: will overwrite existing in live dir):

cd newinitrd   # or open terminal in newinitrd dir.
find . -print | cpio -o -H newc 2>/dev/null | xz -f --extreme --check=crc32 > ../initrd1_jon06finit.xz

==================


1) Truncates names of the module mountpoints (to 10 chars, change the 10 at NAME="${NAME:0:10}" near the bottom of finit if you like less or more.
One disadvantage may be problem if 2 or more modules begin with the same 10 chars, it might happen, in that case any duplicate will be skipped,
advantage compared to 2) is that you can see a little which module is which, but that is of course the first 10 chars only though)
finit-truncate.gz (rename to finit)

2) Changes the names of the module mountpoints to sequenced number (similar as in above posts, but no symlinks needed)
finit-numbered.gz (rename to finit)

With both ways the modules can be in "live" just as it normally used to be before, and the advantage compared to the symlink method is that it should work on FAT32 too.

Other option may be a combination of the two, truncated names numbered in sequence, didn't try that (yet?)

Fred

============================
finit k ..-23


## Functions for porteus init
## Author brokenman, modified for Debiandog by fredx181

# Export some color functions
RED='\033[0;31m'
GREEN='\033[0;32m'
CYAN='\033[0;36m'
YELLOW='\033[1;33m'
BOLD='\033[1;37m'
RST='\033[0m' # Reset Color

# Run fstab for setup
fstab() { rm -f /tmp/devices
param nocd || for x in /dev/sr*; do blkid $x >>/tmp/devices; done
param nohd || blkid | egrep -v '/dev/sr|/dev/loop|/dev/mapper' >>/tmp/devices
dev=`egrep -v 'TYPE="sw|TYPE="LVM|TYPE=".*_raid_member"' /tmp/devices 2>/dev/null | cut -d: -f1 | cut -d/ -f3 | sort | uniq`
cat > /etc/fstab << EOF
# Do not edit this file as fstab is recreated automatically during every boot.
# Please use /etc/rc.d/rc.local or sysvinit scripts if you want to mount/unmount
# drive, filesystem or network share.

# System mounts:
#aufs / aufs defaults 0 0
overlay / overlay 0 0

proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
devtmpfs /dev devtmpfs defaults 0 0
devpts /dev/pts devpts rw,mode=0620,gid=5 0 0

# Device partitions:
EOF
for x in $dev; do
    fs=`grep -w /dev/$x /tmp/devices | egrep -o ' TYPE=[^ ]+' | cut -d'"' -f2`
    [ $fs = vfat ] && echo "/dev/$x /mnt/$x vfat $MOPT,umask=0,check=s,utf8 0 0" >>/etc/fstab || echo "/dev/$x /mnt/$x $fs $MOPT 0 0" >>/etc/fstab
    if [ ! -d /mnt/$x ]; then
    mkdir /mnt/$x
    if [ $fs = ntfs ]; then
        ntfs-3g /dev/$x /mnt/$x -o $MOPT 2>/dev/null || { sed -i "/$x /d" /etc/fstab; rmdir /mnt/$x; }
    else
        mount -n /mnt/$x 2>/dev/null || { modprobe $fs 2>/dev/null && mount -n /mnt/$x 2>/dev/null || { sed -i "/$x /d" /etc/fstab; rmdir /mnt/$x; }; }
    fi
    fi
done

if [ -z "`egrep -o " noswap( |\$)" /proc/cmdline`" -a -e /tmp/devices ]; then
    #echo -e "\n# Swap partitions:" >>/etc/fstab
    for x in `grep 'TYPE="swap"' /tmp/devices | cut -d: -f1`; do echo "$x none swap sw,pri=1 0 0" >>/etc/fstab; done
fi }

# Mount things
mount_device() {
fs=`blkid /dev/$1 | egrep -o ' TYPE=[^ ]+' | cut -d'"' -f2`
if [ "$fs" ]; then
    mkdir /mnt/$1
    if [ $fs = vfat ]; then
    mount -n /dev/$1 /mnt/$1 -o $MOPT,umask=0,check=s,utf8 2>/dev/null || rmdir /mnt/$1
    elif [ $fs = ntfs ]; then
    ntfs-3g /dev/$1 /mnt/$1 -o $MOPT 2>/dev/null || rmdir /mnt/$1
    else
    mount -n /dev/$1 /mnt/$1 -o $MOPT 2>/dev/null || { modprobe $fs 2>/dev/null && mount -n /dev/$1 /mnt/$1 -o $MOPT || rmdir /mnt/$1; }
    fi
fi }

# Search for boot location
search() { FND=none; for x in `ls /mnt | tac`; do
[ $1 /mnt/$x/$2 ] && { DEV=$x; FND=y; break; }; done
[ $FND = y ]; }

# Delay booting a little until devices have settled
nap() { echo -en $i"device not ready yet? delaying $SLEEP seconds \r"; sleep 1; }
lazy() { SLEEP=6; while [ $SLEEP -gt 0 -a $FND = none ]; do nap; let SLEEP=SLEEP-1; fstab; search $*; done }

# Find location of Porteus files
locate() { LPATH=`echo $2 | cut -b-5 | sed s@/dev@/mnt@`
if [ $LPATH = /mnt/ ]; then
    DEV=`echo $2 | cut -d/ -f3`; LPTH=`echo $2 | cut -d/ -f4-`; SLEEP=6
    while [ $SLEEP -gt 0 -a ! -b /dev/$DEV ]; do nap; let SLEEP=SLEEP-1; fstab; done
    [ -d /mnt/$DEV ] || mount_device $DEV
    [ $1 /mnt/$DEV/$LPTH ]
elif [ $LPATH = UUID: -o $LPATH = LABEL ]; then
    ID=`echo $2 | cut -d: -f2 | cut -d/ -f1`; LPTH=`echo $2 | cut -d/ -f2-`; DEV=`blkid | grep $ID | cut -d: -f1 | cut -d/ -f3`; SLEEP=6
    while [ $SLEEP -gt 0 -a "$DEV" = "" ]; do nap; let SLEEP=SLEEP-1; fstab; DEV=`blkid | grep $ID | cut -d: -f1 | cut -d/ -f3`; done
    [ -d /mnt/$DEV ] || mount_device $DEV
    [ $1 /mnt/$DEV/$LPTH ]
else
    LPTH=$2; search $* || lazy $*
fi }

# Check if a location is writable
is_writable(){ touch $1/.test 2>/dev/null; [ -e $1/.test ] && rm $1/.test; }

# Booting failed. Failed to find porteus files.
fail() { echo -e $i"couldn't find $1. Correct your from= cheatcode.\n Documentation in /usr/doc/porteus. Press 'enter' to continue booting."; read -s; }

# Failed to initiate changes. Creating temporary changes on tmpfs for this session.
fail_chn() { mount -nt tmpfs -o size=$RAMSIZE tmpfs /memory/changes; CHANGES=memory; CHNDEV=memory; touch /etc/nochanges; }

# Just draw a line
draw() { echo """---------------------------------------------------------"""; }

# Error checking a save file.
fsck_dat() { echo $i"checking $1 for errors"
fs=`blkid $1 | egrep -o ' TYPE=[^ ]+' | cut -b8-10`
if [ $fs = xfs ]; then
    echo $i"detected xfs - performing fsck at mount time"
elif [ $fs = ext ]; then
    draw; e2fsck -C 0 -p $1; wait; draw
elif [ $fs = rei ]; then
    draw; reiserfsck -p $1; wait; draw
else
    echo $i"detected unsupported fs - skipping fsck"
fi }

# Copy modules
cpmod() { NUM=`grep -c '.' $1`
modfile=$1
while read x; do
    echo -en """  ($NUM modules left)  \r"""; let NUM=NUM-1; NAME=`basename "$x"`
    cp "$x" /memory/copy2ram 2>/dev/null
    if [ $? -eq 0 ]; then
    sed -i s@^.*/$NAME@/memory/copy2ram/$NAME@ /tmp/modules
    else
    rm /memory/copy2ram/"$NAME"; echo -e $i"""Not enough memory to copy $NAME"""; echo -e $i"""Other modules will be skipped."""
    find /memory/copy2ram -name "*.squashfs" | sort >/tmp/modules
    break
    fi
done < $modfile
echo -en "                       \r"
}

# If bootlog cheatcode is present then make log entry
blog(){
        param log && echo "$1" >> $LOGFILE
}

# Check for a boot param
#chk_bootcfg(){ grep "^$1" /union/etc/bootcmd.cfg; }

#======================================
# setClean
#--------------------------------------
setClean()
{
#=== 変分反映層
    mkdir -p /memory/changes/upperdir
#=== 変分管理データ層
    mkdir -p /memory/changes/workdir

#--<継承エリア初期化>--#
local PLACE=/memory/changes/upperdir
#   rm -rf $PLACE/boot 2>/dev/null
    rm -rf $PLACE/dev 2>/dev/null
    rm -rf $PLACE/mnt 2>/dev/null
    rm -rf $PLACE/proc 2>/dev/null
    rm -rf $PLACE/run 2>/dev/null
    rm -rf $PLACE/sys 2>/dev/null
    rm -rf $PLACE/tmp 2>/dev/null
    rm -rf $PLACE/var/lock/* 2>/dev/null
    rm -rf $PLACE/var/run 2>/dev/null
    rm -rf $PLACE/var/tmp 2>/dev/null
    rm -rf $PLACE/var/spool/cron/cron.?????? 2>/dev/null

#   chown -R guest:users $PLACE/home/guest 2>/dev/null

#--< activate 後 deactivate 無しで終了した残骸を削除する >--#
#--- delete symbolic link setting "entity & tag" ---#
local x
local DIR
local PKG
    for x in `find $PLACE -name '.act.new.*' `
    do
        DIR=${x%/*}
        PKG=${x##*/}
        PKG=${PKG#.act.new.}
#echo "x=$x DIR=$DIR PKG=$PKG"
        if [ -h $DIR/$PKG ]
        then
            rm $DIR/$PKG
        fi
        rm $x
    done

#--- recover original entity ---#
    for x in `find $PLACE -name '.act.org.*' `
    do
#       DIR=${x%/*}
#       PKG=${x##*/}
#       PKG=${PKG#.act.org.}
#       mv $x $DIR/$PKG
        rm $x
    done
}
#======================================
# IncludeModules
#--------------------------------------
IncludeModules()
{
#=== 変分反映層
mkdir -p /memory/changes/upperdir
UPPERDIR=/memory/changes/upperdir
#=== 変分管理データ層
mkdir -p /memory/changes/workdir
WORKDIR=/memory/changes/workdir

#--<継承エリア初期化>--#
setClean

#=== 固定不変層
LOWLIST=""
for x in `cat /tmp/modules`;
do
    ############### truncate mountpoint names ##############
    #   NAME=`basename $x`;
        NAME=`basename ${x%.*}`; # remove extension .squashfs
        NAME="${NAME:0:14}""-$a"

    # skip if (truncated) /memory/images/$NAME exists already
    [ -d /memory/images/$NAME ] && continue
    let a=a+1
    #########################################################

    mkdir /memory/images/$NAME;
    mount -o loop $x /memory/images/$NAME 2>/dev/null
    if [ $? -eq 0 ];
    then
        echo "  $m  $NAME";
        LOWLIST=/memory/images/${NAME}:${LOWLIST}
    else
        echo $i"""Cannot read $NAME - corrupted module?""";
        rmdir /memory/images/$NAME
    fi
done
if [ -d /memory/images/changes-exit ]
then
    LOWLIST=/memory/images/changes-exit/upperdir:${LOWLIST}
    cp -a /memory/images/changes-exit/workdir/* $WORKDIR/. 2> /dev/null
fi
LOWLIST=`echo $LOWLIST | sed 's/:$//'`

#echo "mount -t overlay -o upperdir=$UPPERDIR,lowerdir=$LOWLIST,workdir=$WORKDIR overlay /union"
mount -t overlay -o upperdir=$UPPERDIR,lowerdir=$LOWLIST,workdir=$WORKDIR overlay /union
if [ $? -ne 0 ]
then
    sh
fi
}