#!/static/sh # # KNOPPIX General Startup Script # (C) Klaus Knopper # # # This script needs some of the builtin ash commands (if, test, ...) # mount/umount, insmod/rmmod are also a builtin in ash-knoppix. # # hardcoded configurable options # Default maximum size of dynamic ramdisk in kilobytes RAMSIZE=1000000 # End of options # Don't allow interrupt signals trap "" 1 2 3 15 # "Safe" SCSI modules in the right order for autoprobe # Warning: The sym53c8xx.o and g_NCR* cause a kernel Oops if no such adapter # is present. # # NB: It looks like that ncr53c8xx.o is more stable than 53c7,8xx.o for # a ncr53c810 controller (at least on my installation box it's more # immune to SCSI timeouts) # Removed 53c7,8xx -> crashes if no device attached. # Removed AM53C974 -> crashes tmscsim if adapter found # Added initio.o on request (untested) SCSI_MODULES="aic7xxx.o aic7xxx_old.o BusLogic.o \ ncr53c8xx.o NCR53c406a.o \ initio.o \ advansys.o aha1740.o aha1542.o aha152x.o \ atp870u.o dtc.o eata.o fdomain.o gdth.o \ megaraid.o pas16.o pci2220i.o pci2000.o psi240i.o \ qlogicfas.o qlogicfc.o qlogicisp.o \ seagate.o t128.o tmscsim.o u14-34f.o ultrastor.o wd7000.o \ a100u2w.o 3w-xxxx.o" # Misc functions mountit(){ # Usage: mountit src dst "options" # Uses builtin mount of ash.knoppix # Builin filesystems BUILTIN_FS="iso9660 ext2 vfat" for fs in $BUILTIN_FS; do test -b $1 && mount -t $fs $3 $1 $2 >/dev/null 2>&1 && return 0 done return 1 } FOUND_SCSI="" FOUND_KNOPPIX="" INTERACTIVE="" # Clean input/output exec >/dev/console &1 # Reset fb color mode RESET="]R" # ANSI COLORS # Erase to end of line CRE=" " # Clear and reset Screen CLEAR="c" # Normal color NORMAL="" # RED: Failure or error message RED="" # GREEN: Success message GREEN="" # YELLOW: Descriptions YELLOW="" # BLUE: System mesages BLUE="" # MAGENTA: Found devices or drivers MAGENTA="" # CYAN: Questions CYAN="" # BOLD WHITE: Hint WHITE="" # Clear screen with colormode reset # echo "$CLEAR$RESET" # echo "$CLEAR" # Just go to the top of the screen # echo -n "" echo "" # Be verbose echo "${WHITE}Welcome to the ${CYAN}K${MAGENTA}N${YELLOW}O${WHITE}P${RED}P${GREEN}I${BLUE}X${WHITE} live Linux-on-CD!${NORMAL}" echo "" echo "" # We only need the builtin commands and /static at this point PATH=/static export PATH umask 022 # Mount /proc and /dev/pts mount -t proc none /proc mount -t devpts none /dev/pts # Read boot command line with builtin cat command (shell read function fails in Kernel 2.4.19-rc1) CMDLINE="$(cat /proc/cmdline)" # Check if we are in interactive startup mode case "$CMDLINE" in *BOOT_IMAGE=expert\ *) INTERACTIVE="yes"; :>/interactive; ;; esac # Does the user want to skip scsi detection? NOSCSI="" case "$CMDLINE" in *noscsi*) NOSCSI="yes"; ;; esac # Disable kernel messages while probing modules in autodetect mode echo "0" > /proc/sys/kernel/printk # Mount module disk mountmodules(){ TYPE="$1"; shift echo -n "${CRE}${CYAN}Please insert ${TYPE} modules disk and hit Return. ${NORMAL}" read a echo -n "${CRE}${BLUE}Mounting ${TYPE} modules disk... ${NORMAL}" # We always mount over /modules/scsi (because it's there ;-) if mountit /dev/fd0 /modules/scsi "-o ro"; then echo "${GREEN}OK.${NORMAL}" return 0 fi echo "${RED}NOT FOUND.${NORMAL}" return 1 } # Unmount module disk umountmodules(){ TYPE="$1"; shift echo -n "${CRE}${BLUE}Unmounting ${TYPE} modules disk... ${NORMAL}" umount /modules/scsi 2>/dev/null echo "${GREEN}DONE.${NORMAL}" } # Ask user for modules askmodules(){ TYPE="$1"; shift echo "${BLUE}${TYPE} modules available:${WHITE}" c=""; for m in "$@"; do if test -f "/modules/scsi/$m"; then test -z "$c" && { echo -n " $m"; c="1"; } || { echo " $m"; c=""; } fi done [ -n "$c" ] && echo "" echo "${CYAN}Load ${TYPE} Modules?${NORMAL}" echo "${CYAN}[Enter full filename(s) (space-separated), Return for autoprobe, ${WHITE}n${CYAN} for none] ${NORMAL}" echo -n "${CYAN}insmod module(s)> ${NORMAL}" read MODULES case "$MODULES" in n|N) MODULES=""; ;; y|"") MODULES="$*"; ;; esac } # Try to load the given modules (full path or current directory) loadmodules(){ TYPE="$1"; shift test -n "$INTERACTIVE" && echo "6" > /proc/sys/kernel/printk for i in "$@"; do echo -n "${CRE}${BLUE}Probing ${TYPE}... ${MAGENTA}$i${NORMAL}" if test -f /modules/scsi/$i && insmod -f /modules/scsi/$i >/dev/null 2>&1 then echo "${CRE} ${GREEN}Found ${TYPE} device(s) handled by ${MAGENTA}$i${GREEN}.${NORMAL}" case "$TYPE" in scsi|SCSI) FOUND_SCSI="yes"; ;; esac fi done test -n "$INTERACTIVE" && echo "0" > /proc/sys/kernel/printk echo -n "${CRE}" } # load usb-modules first (so that memory-stick becomes /dev/sda1) # uncomment for USB 2.0 support (experimental) #insmof -f /modules/usb/ehci-hcd.o insmod -f /modules/usb/usbcore.o #insmod -f /modules/usb/uhci.o insmod -f /modules/usb/usb-uhci.o insmod -f /modules/usb/uhci.o insmod -f /modules/usb/usb-ohci.o insmod -f /modules/usb/usb-storage.o # need to sleep because it takes some time to register things ash -c "sleep 4" # Check for SCSI, use modules on bootfloppy first if test -n "$INTERACTIVE"; then # Let the user select interactively askmodules SCSI $(cd /modules/scsi; echo *.o) else # these are the autoprobe-safe modules MODULES="$SCSI_MODULES" fi test -z "$NOSCSI" && test -n "$MODULES" && loadmodules SCSI $MODULES # End of SCSI check # Check for misc modules in expert mode if test -n "$INTERACTIVE"; then another=""; answer="" while test "$answer" != "n" -a "$answer" != "N"; do echo -n "${CYAN}Do you want to load additional modules from$another floppy disk? [${WHITE}Y${CYAN}/n] ${NORMAL}" another=" another" read answer case "$answer" in n*|N*) break; ;; esac if mountmodules new; then askmodules new $(cd /modules/scsi; echo *.o) test -n "$MODULES" && loadmodules new $MODULES umountmodules current fi done fi # All interactively requested modules should be loaded now. # Check for ide-scsi supported CD-Roms et al. test -f /proc/scsi/scsi && FOUND_SCSI="yes" # Disable kernel messages again echo "0" > /proc/sys/kernel/printk # Now that the right SCSI driver is (hopefully) loaded, try to find CDROM #DEVICES="/dev/hd?" #test -n "$FOUND_SCSI" && DEVICES="/dev/scd? /dev/scd?? $DEVICES" # New: Also try parallel port CD-Roms [for Mike]. #DEVICES="$DEVICES /dev/pcd?" # New: also check HD partitions for a KNOPPIX/KNOPPIX image #test -n "$FOUND_SCSI" && DEVICES="$DEVICES /dev/sd?[1-9] /dev/sd?[1-9][0-9]" #DEVICES="$DEVICES /dev/hd?[1-9] /dev/hd?[1-9][0-9]" #for i in $DEVICES #do #echo -n "${CRE}${BLUE}Looking for CDROM in: ${MAGENTA}$i${NORMAL} " #if mountit $i /cdrom "-o ro" >/dev/null 2>&1 #then #if test -d /cdrom/KNOPPIX #then #echo -n "${CRE} ${GREEN}Accessing KNOPPIX CDROM at ${MAGENTA}$i${GREEN}...${NORMAL}" #FOUND_KNOPPIX="$i" #break #fi #umount /cdrom #fi #done # mount /dev/sda1 (memorystick to cdrom) FOUND_KNOPPIX="/dev/sda1" mount -t vfat /dev/sda1 /cdrom # Harddisk-installed script part version has been removed # (KNOPPIX can be booted directly from HD now). if test -n "$FOUND_KNOPPIX" -a -f /cdrom/KNOPPIX/KNOPPIX; then # DEBUG # echo "6" > /proc/sys/kernel/printk insmod -f /modules/cloop.o file=/cdrom/KNOPPIX/KNOPPIX mountit /dev/cloop /KNOPPIX "-o ro" || FOUND_KNOPPIX="" fi # Final test if everything succeeded. if test -n "$FOUND_KNOPPIX" then # copy library cache cat /KNOPPIX/etc/ld.so.cache > /etc/ld.so.cache echo "" # Enable kernel messages echo "6" > /proc/sys/kernel/printk # Set paths echo -n "${CRE}${BLUE}Setting paths...${NORMAL}" PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:." export PATH # Debian weirdness /bin/cp -a /KNOPPIX/etc/alternatives /etc/ 2>/dev/null # From here, we should have all essential commands available. hash -r # Clean up / rm -rf /modules /static # New in Kernel 2.4.x: tempfs with variable ramdisk size. # We check for available memory anyways and limit the ramdisks # to a reasonable size. FOUNDMEM="$(awk '/MemTotal/{print $2}' /proc/meminfo)" TOTALMEM="$(awk 'BEGIN{m=0};/MemFree|Cached/{m+=$2};END{print m}' /proc/meminfo)" # Be verbose echo "${CRE}${BLUE}Total memory found: ${YELLOW}${FOUNDMEM}${BLUE} kB${NORMAL}" # Now we need to use a little intuition for finding a ramdisk size # that keeps us from running out of space, but still doesn't crash the # machine due to lack of Ram # Minimum size of additional ram partitions MINSIZE=2000 # At least this much memory minus 30% should remain when home and var are full. MINLEFT=16000 # Maximum ramdisk size MAXSIZE="$(expr $TOTALMEM - $MINLEFT)" # Default ramdisk size for ramdisk RAMSIZE="$(expr $TOTALMEM / 5)" # Check for sufficient memory to mount extra ramdisk for /home + /var if test -n "$TOTALMEM" -a "$TOTALMEM" -gt "$MINLEFT"; then test -z "$RAMSIZE" && RAMSIZE=1000000 mkdir -p /ramdisk # tmpfs/varsize version, can use swap RAMSIZE=$(expr $RAMSIZE \* 4) echo -n "${CRE}${BLUE}Creating ${YELLOW}/ramdisk${BLUE} (dynamic size=${RAMSIZE}k) on ${MAGENTA}/dev/shm${BLUE}...${NORMAL}" # We need /bin/mount here for the -o size= option /bin/mount -t tmpfs -o "size=${RAMSIZE}k" /dev/shm /ramdisk && mkdir -p /ramdisk/home /ramdisk/var && ln -s /ramdisk/home /ramdisk/var / echo "${BLUE}Done.${NORMAL}" else mkdir -p /home /var fi echo -n "${CRE}${BLUE}Creating directories and symlinks on ramdisk...${NORMAL}" # Create common WRITABLE (empty) dirs mkdir -p /var/run /var/backups /var/cache/apache /var/local /var/lock/news \ /var/nis /var/preserve /var/state/misc /var/tmp /var/lib \ /var/spool/cups/tmp \ /mnt/cdrom /mnt/floppy /mnt/hd /mnt/test \ /home/knoppix /home/root /etc/sysconfig /etc/X11 /etc/cups chown knoppix.knoppix /home/knoppix # Create empty utmp and wtmp :> /var/run/utmp :> /var/run/wtmp # CUPS wants writable files. :-/ cp -a /KNOPPIX/etc/cups/*.conf /etc/cups/ 2>/dev/null # All files in here should be size zero after Knoppix.clean was run cp -a /KNOPPIX/var/local /KNOPPIX/var/games /KNOPPIX/var/log \ /KNOPPIX/var/spool /var/ 2>/dev/null cp -a /KNOPPIX/var/lib/games /KNOPPIX/var/lib/wine \ /KNOPPIX/var/lib/nfs /KNOPPIX/var/lib/xkb /KNOPPIX/var/lib/isdn \ /KNOPPIX/var/lib/kdm /KNOPPIX/var/lib/pcmcia \ /KNOPPIX/var/lib/dhcp* \ /var/lib/ 2>/dev/null # Problematic directories in /var/lib (lots and lots of inodes) ln -s /KNOPPIX/var/lib/dpkg /KNOPPIX/var/lib/apt /KNOPPIX/var/lib/doc-base \ /KNOPPIX/var/lib/gnome /KNOPPIX/var/lib/kde \ /KNOPPIX/var/lib/scrollkeeper /KNOPPIX/var/lib/texmf \ /var/lib/ 2>/dev/null # Debian-apt ln -s /KNOPPIX/var/cache/apt /var/cache/ 2>/dev/null ln -s /KNOPPIX/etc/skel /KNOPPIX/etc/nessus /etc/dhcpc/resolv.conf \ /etc/ 2>/dev/null ln -s /KNOPPIX/dev/* /dev/ 2>/dev/null # Index files can be HUGE, so better replace cache/man tree by links later # cp -a /KNOPPIX/var/cache/man /var/cache/ 2>/dev/null # Create links from CDROM for UNWRITABLE (remaining) files cp -aus /KNOPPIX/var/* /var/ 2>/dev/null cp -aus /KNOPPIX/etc/* /etc/ 2>/dev/null # Make SURE that these are files, not links! rm -rf /etc/ftpusers /etc/passwd /etc/shadow /etc/group \ /etc/ppp /etc/isdn /etc/ssh /etc/ioctl.save \ /etc/inittab /etc/network /etc/sudoers \ /etc/init /etc/localtime /etc/dhcpc /etc/pnm2ppa.conf 2>/dev/null cp -a /etc/ftpusers /KNOPPIX/etc/passwd /KNOPPIX/etc/shadow /KNOPPIX/etc/group \ /KNOPPIX/etc/ppp /KNOPPIX/etc/isdn /KNOPPIX/etc/ssh \ /KNOPPIX/etc/inittab /KNOPPIX/etc/network /KNOPPIX/etc/sudoers \ /KNOPPIX/sbin/init /KNOPPIX/etc/dhcpc /etc/ 2>/dev/null # Extremely important, init crashes on shutdown if this is only a link :> /etc/ioctl.save :> /etc/pnm2ppa.conf # Diet libc bug workaround cp -f /KNOPPIX/etc/localtime /etc/localtime echo "${BLUE}Done.${NORMAL}" # Now tell kernel where the real modprobe lives echo "/sbin/modprobe" > /proc/sys/kernel/modprobe # Change root device from /dev/fd0 to /dev/ram0 echo "0x100" > /proc/sys/kernel/real-root-dev # Give control to the init process. echo "${CRE}${BLUE}Starting init process.${NORMAL}" rm -f /linuxrc exit 0 else echo "${CRE}${RED}Can't find KNOPPIX filesystem, sorry.${NORMAL}" echo "${RED}Dropping you to a (very limited) shell.${NORMAL}" echo "${RED}Press reset button to quit.${NORMAL}" echo "" echo "Additional builtin commands avaliable:" echo " cat mount umount" echo " insmod rmmod lsmod" echo "" PS1="knoppix# " export PS1 echo "6" > /proc/sys/kernel/printk # Allow signals trap 1 2 3 15 exec /static/ash fi