-
Unofficial cheatcode for those who miss the old official home= cheatcode
For Knoppix 6, the initialisation script (init) and others were rewritten and several cheatcodes folks used under Knoppix 5 disappeared. Among these is home=, which allowed the Knoppix persistent data to be stored on a different device from the main Knoppix image and was the way to use persistent data with a CD/DVD.
Below is a patch for the init script that implements a cheatcode that does the same job. The patch is for Knoppix 6.4.3 (developed against a USB install of the EN version of the DVD). Since it is a patch, there is a fair chance it will apply cleanly to the init script of other Knoppix 6 releases. It should also apply to init scripts with other local modifications provided the functions createdata() and mountdata() have not been changed.
This is not an attempt to port the old implementation of home= from Knoppix 5 to Knoppix 6 but an new implementation from scratch. As such, it may behave differently so it is named differently.
Use:
Code:
knoppix_data=/media/aDev/someDirectories/theImage.ext
The cheatcode will attempt to mount the device /dev/aDev on /media/aDev and try to mount a persistent data image at the path someDirectories/theImage.ext.
If the persistent data image does not exist, the create image dialogue will create one but the file type extension is ignored and you will get a persistent image with the file type aes or img, depending on whether you choose the encryption or not.
If the attempt to mount /dev/aDev on /media/aDev fails, then the fall back is the default of /mnt-system/KNOPPIX/knoppix-data.{aes,img}. /dev/aDevmust be a block device with a file system recognised by the init script on a partition recognised by the Knoppix boot kernel (possibly with the addition of extra modules).
File systems currently supported are vfat, ntfs-3g, reiserfs, ext3, ext2 (no, lvm2 is not recognised). Devices supported include hard-drive and USB block devices but probably not SD and other camera flash devices (but you're welcome to try).
The init script function that creates the persistent data image checks that there is enough space on the device and gives up silently if there is not. A consequence of this is that when you boot from a CD/DVD, the init script does not ask if you want to create a persistent image because there is no free space on a CD/DVD.
There is no reason to suppose the knoppix_data= cheatcode is will not work with (a remastered) Knoppix CD/DVD but this has not been tested.
The patch is to be applied to the init script, which is packed into minirt.gz, See the Wiki for notes on how to pack and unpacked minirt.gz. For a USB installation, minirt.gz can be copied from and back to the Knoppix boot partition. For Knoppix on a CD/DVD, a remastering of the Knoppix iso file is required and a new CD/DVD burnt.
Code:
--- init.org 2010-11-25 18:53:50.000000000 +0000
+++ init 2011-02-20 09:40:29.000000000 +0000
@@ -565,7 +566,8 @@
createdata(){
local rc size avail
- avail="$(df -m /mnt-system | awk '{size=$4}END{print size - 1}')"
+ knoppix_data="${knoppix_data%.*}"
+ avail="$(df -m "${knoppix_data%/*}" | awk '{size=$4}END{print size - 1}')"
[ "$avail" -ge 200 ] 2>/dev/null || return 2
runknoppixchroot /usr/bin/dialog --timeout 10 --inputbox "\n${CREATEIMG1}${avail}${CREATEIMG2}\n" 16 75 2>/tmp/knoppix.size; rc="$?"
echo -n "${CLEAR}"
@@ -576,6 +578,7 @@
[ -b /dev/loop0 ] || mknod -m 755 /dev/loop0 b 7 0
[ -d /KNOPPIX-DATA ] || mkdir -m 755 /KNOPPIX-DATA
if [ "$rc" = 0 ]; then # Encrypted
+ knoppix_data=$knoppix_data.aes
local pw1="" pw2="" len=0 mods="" m
setkeyboard
while [ -z "$pw1" -o -z "$pw2" -o x"$pw1" != x"$pw2" -o "$len" -lt 4 ]; do
@@ -592,27 +595,41 @@
[ -d /sys/module/"$m" ] || mods="$mods $m"
done
[ -n "$mods" ] && runknoppixchroot /sbin/modprobe $mods >/dev/null 2>&1
- createfile /mnt-system/"$knoppix_dir"/knoppix-data.aes "$size"
+ createfile $knoppix_data "$size"
losetup -d /dev/loop0 2>/dev/null
- runknoppixlib /sbin/losetup -p 0 -e aes -k 256 /dev/loop0 /mnt-system/"$knoppix_dir"/knoppix-data.aes </tmp/knoppix.pw; rc="$?"; rm -f /tmp/knoppix.pw
+ runknoppixlib /sbin/losetup -p 0 -e aes -k 256 /dev/loop0 $knoppix_data </tmp/knoppix.pw; rc="$?"; rm -f /tmp/knoppix.pw
runknoppixlib /sbin/mke2fs -F -m 0 /dev/loop0
sleep 2; echo -n "$CLEAR"
mount -t ext2 -o rw /dev/loop0 /KNOPPIX-DATA && return 0
else # Unencrypted
- createfile /mnt-system/"$knoppix_dir"/knoppix-data.img "$size"
- runknoppixlib /sbin/mke2fs -F -m 0 /mnt-system/"$knoppix_dir"/knoppix-data.img
+ knoppix_data=$knoppix_data.img
+ createfile $knoppix_data "$size"
+ runknoppixlib /sbin/mke2fs -F -m 0 $knoppix_data
sleep 2; echo -n "$CLEAR"
- mount -t ext2 -o loop,rw /mnt-system/"$knoppix_dir"/knoppix-data.img /KNOPPIX-DATA && return 0
+ mount -t ext2 -o loop,rw $knoppix_data /KNOPPIX-DATA && return 0
fi
return 1
}
mountdata(){
local img base ext m mods found=""
- for base in /mnt-system/"$knoppix_dir"/knoppix-data /mnt-system/knoppix; do
- for ext in aes img; do
- img="$base.$ext"
+ if [ -n "${knoppix_data}" ]; then
+ [ "${knoppix_data#/dev/}" != "${knoppix_data}" ] && knoppix_data="/media/${knoppix_data#/dev/}"
+ if [ "${knoppix_data#/media/}" != "${knoppix_data}" ]; then
+ img="${knoppix_data#/media/}"; img="${img%%/*}"
+ mkdir -p "/media/${img}"
+ trymount "/dev/${img}" "/media/${img}" >/dev/null 2>&1 || knoppix_data=""
+ [ -n "${knoppix_data}" -a "${knoppix_data#/media/*/}" == "${knoppix_data}" ] && knoppix_data="${knoppix_data}/${knoppix_dir}/knoppix-data"
+ fi
+ [ -d "${knoppix_data}" -o "${knoppix_data}" != "${knoppix_data%/}" ] && knoppix_data="${knoppix_data%/}/knoppix-data"
+ fi
+ [ -z "$knoppix_data" ] && knoppix_data="/mnt-system/$knoppix_dir/knoppix-data";
+ for base in "$knoppix_data" "/mnt-system/$knoppix_data" "/mnt-system/$knoppix_dir/$knoppix_data" /mnt-system/knoppix; do
+ for ext in "" .aes .img; do
+ img="$base$ext"
[ -r "$img" ] || continue
+ [ -d "$img" ] && continue
+ knoppix_data=$img
message -e "\r${CRE}${GREEN}${USING} ${YELLOW}$img${NORMAL}"
[ -b /dev/loop0 ] || mknod -m 755 /dev/loop0 b 7 0
[ -d /KNOPPIX-DATA ] || mkdir -m 755 /KNOPPIX-DATA
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
![Type C USB 3.0 Flash Drive Thumb Drive Memory Stick for PC Laptop 1TB 2TB lot picture](/store/img/g/oroAAOSwsJNmFPcr/s-l225/Type-C-USB-3-0-Flash-Drive-Thumb-Drive-Memory-Stic.jpg)
Type C USB 3.0 Flash Drive Thumb Drive Memory Stick for PC Laptop 1TB 2TB lot
$73.29
![1TB/2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage lot picture](/store/img/g/PDMAAOSwlhdmFJ5R/s-l225/1TB-2TB-USB-3-0-Flash-Drive-Thumb-U-Disk-Memory-St.jpg)
1TB/2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage lot
$80.39
![SAMSUNG PM851 1TB SATA SSD | MZ-MTE1T0D picture](/store/img/g/GjkAAOSwsl5meXZa/s-l225/SAMSUNG-PM851-1TB-SATA-SSD-MZ-MTE1T0D.jpg)
SAMSUNG PM851 1TB SATA SSD | MZ-MTE1T0D
$49.99
![Samsung - 990 980 970 PRO & EVO 4TB 2TB 1 TB Internal PCle Gen 4x4 NVMe M.2SSD picture](/store/img/g/4jMAAOSwtO5maEst/s-l225/Samsung-990-980-970-PRO-EVO-4TB-2TB-1-TB-Internal-.jpg)
Samsung - 990 980 970 PRO & EVO 4TB 2TB 1 TB Internal PCle Gen 4x4 NVMe M.2SSD
$200.00
![CISCO A03-D1TBSATA 1TB 7.2K 6G 2.5INCH SATA HDD picture](/store/img/g/qqcAAOSw~xVgcyGX/s-l225/CISCO-A03-D1TBSATA-1TB-7-2K-6G-2-5INCH-SATA-HDD.jpg)
CISCO A03-D1TBSATA 1TB 7.2K 6G 2.5INCH SATA HDD
$9.00
![HP MM1000GBKAL 1TB 2.5](/store/img/g/000AAOSwMFxmcavs/s-l225/HP-MM1000GBKAL-1TB-2-5-6Gb-s-7-2K-RPM-SATA-Hard-Dr.jpg)
HP MM1000GBKAL 1TB 2.5" 6Gb/s 7.2K RPM SATA Hard Drive P/N: 614829-003 Tested
$14.99
![1TB HDD/SSD 2.5](/store/img/g/IlgAAOSwtgpmKHfn/s-l225/1TB-HDD-SSD-2-5-SATA-Hard-Drive-for-Laptop-with-Wi.jpg)
1TB HDD/SSD 2.5" SATA Hard Drive for Laptop with Win 10/Win 11 Pro Pre-installed
$29.99
![Samsung - Geek Squad Certified Refurbished 870 EVO 1TB SATA Solid State Drive picture](/store/img/g/25EAAOSw2gplntqr/s-l225/Samsung-Geek-Squad-Certified-Refurbished-870-EVO-1.jpg)
Samsung - Geek Squad Certified Refurbished 870 EVO 1TB SATA Solid State Drive
$67.99
![Kingston KC600 1 TB Solid State Drive - 2.5](/store/img/g/Et0AAOSwMN9mdHZv/s-l225/Kingston-KC600-1-TB-Solid-State-Drive-2-5-Internal.jpg)
Kingston KC600 1 TB Solid State Drive - 2.5" Internal - SATA (SATA/600)
$60.00
![1080pro 4TB SSD Solid State Hard Drive Ngff M.2 SSD Gaming Internal Hard Disk picture](/store/img/g/BKEAAOSwer5mVDmP/s-l225/1080pro-4TB-SSD-Solid-State-Hard-Drive-Ngff-M-2-SS.jpg)
1080pro 4TB SSD Solid State Hard Drive Ngff M.2 SSD Gaming Internal Hard Disk
$110.00