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author Patrick J Volkerding <volkerdi@slackware.com>2010-05-19 08:58:23 +0000
committer Eric Hameleers <alien@slackware.com>2018-05-31 22:43:05 +0200
commitb76270bf9e6dd375e495fec92140a79a79415d27 (patch)
tree3dbed78b2279bf9f14207a16dc634b90995cbd40 /usb-and-pxe-installers/usbimg2disk.sh
parent5a12e7c134274dba706667107d10d231517d3e05 (diff)
downloadcurrent-b76270bf9e6dd375e495fec92140a79a79415d27.tar.gz
current-b76270bf9e6dd375e495fec92140a79a79415d27.tar.xz
Slackware 13.1slackware-13.1
Wed May 19 08:58:23 UTC 2010 Slackware 13.1 x86_64 stable is released! Lots of thanks are due -- see the RELEASE_NOTES and the rest of the ChangeLog for credits. The ISOs are on their way to replication, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. We are taking pre-orders now at store.slackware.com, and offering a discount if you sign up for a subscription. Consider picking up a copy to help support the project. Thanks again to the Slackware community for testing, contributing, and generally holding us to a high level of quality. :-) Enjoy!
Diffstat (limited to 'usb-and-pxe-installers/usbimg2disk.sh')
-rw-r--r--usb-and-pxe-installers/usbimg2disk.sh214
1 files changed, 176 insertions, 38 deletions
diff --git a/usb-and-pxe-installers/usbimg2disk.sh b/usb-and-pxe-installers/usbimg2disk.sh
index d98e21de..aed32c51 100644
--- a/usb-and-pxe-installers/usbimg2disk.sh
+++ b/usb-and-pxe-installers/usbimg2disk.sh
@@ -1,7 +1,7 @@
#!/bin/sh
-# $Id: usbimg2disk.sh,v 1.2 2009/05/14 10:29:38 eha Exp eha $
+# $Id: usbimg2disk.sh,v 1.9 2010/04/24 18:21:53 eha Exp eha $
#
-# Copyright 2009 Eric Hameleers, Eindhoven, NL
+# Copyright 2009, 2010 Eric Hameleers, Eindhoven, NL
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
@@ -24,14 +24,29 @@
# Paranoid as usual:
set -e
+# Clean up in case of failure:
+cleanup() {
+ # Clean up by unmounting our loopmounts, deleting tempfiles:
+ echo "--- Cleaning up the staging area..."
+ sync
+ umount -f ${MNTDIR1} 2>/dev/null || true
+ umount -f ${MNTDIR2} 2>/dev/null || true
+ rm -rf ${MNTDIR3}
+ rmdir $MNTDIR1 $MNTDIR2
+}
+trap "echo \"*** $0 FAILED at line $LINENO ***\"; cleanup; exit 1" ERR INT TERM
+
showhelp() {
echo "# "
- echo "# Purpose: to use the content of Slackware's usbboot.img and transform"
- echo "# a standard USB thumb drive with a single vfat partition"
- echo "# into an alternative USB boot device for the Slackware installer."
+ echo "# Purpose #1: to use the content of Slackware's usbboot.img and"
+ echo "# transform a standard USB thumb drive with a single vfat partition"
+ echo "# into a bootable medium containing the Slackware Linux installer."
+ echo "# "
+ echo "# Purpose #2: to use the contents of a Slackware directory tree"
+ echo "# and transform a standard USB thumb drive with"
+ echo "# a single vfat partition and 2GB of free space into"
+ echo "# a self-contained USB installation medium for Slackware Linux."
echo "# "
- echo "# Reason: some computers refuse to boot from a USB thumb drive if it was"
- echo "# made bootable by dumping 'usbboot.img' onto it."
echo "# "
echo "# Your USB thumb drive may contain data!"
echo "# This data will *not* be overwritten, unless you have"
@@ -43,18 +58,28 @@ showhelp() {
echo "# -i|--infile <filename> Full path to the usbboot.img file"
echo "# -l|--logfile <filename> Optional logfile to catch fdisk output"
echo "# -o|--outdev <filename> The device name of your USB drive"
+ echo "# -s|--slackdir <dir> Use 'dir' as the root of Slackware tree"
echo "# -u|--unattended Do not ask any questions"
+ echo "# -L|--label FAT label when formatting the USB drive"
+
echo "# "
- echo "# Example:"
+ echo "# Examples:"
echo "# "
echo "# $(basename $0) -i ~/download/usbboot.img -o /dev/sdX"
+ echo "# $(basename $0) -f -s /home/ftp/pub/slackware-13.0 -o /dev/sdX"
+ echo "# "
+ echo "# The second example shows how to create a fully functional Slackware"
+ echo "# installer on a USB stick (it needs a Slackware tree as the source)."
echo "# "
}
reformat() {
# Commands to re-create a functional USB stick with VFAT partition:
- # Only parameter: the name of the USB device to be formatted:
- TOWIPE="$1"
+ # two parameters:
+ # (1) the name of the USB device to be formatted:
+ # (2) FAT label to use when formatting the USB device:
+ local TOWIPE="$1"
+ local THELABEL="$2"
# Sanity checks:
if [ ! -b $TOWIPE ]; then
@@ -77,8 +102,11 @@ b
w
EOF
+ # We set the fat label to '$THELABEL' when formatting.
+ # It will enable the installer to mount the fat partition automatically
+ # and pre-fill the correct pathname for the "SOURCE" dialog.
# Format with a vfat filesystem:
- /sbin/mkdosfs -F32 ${TOWIPE}1
+ /sbin/mkdosfs -F32 -n ${THELABEL} ${TOWIPE}1
}
makebootable() {
@@ -125,10 +153,19 @@ while [ ! -z "$1" ]; do
TARGETPART="${TARGET}1"
shift 2
;;
+ -s|--slackdir)
+ REPOSROOT="$(cd $(dirname $2); pwd)/$(basename $2)"
+ FULLINSTALLER="yes"
+ shift 2
+ ;;
-u|--unattended)
UNATTENDED=1
shift
;;
+ -L|--label)
+ FATLABEL="$2"
+ shift 2
+ ;;
*)
echo "Unknown parameter '$1'!"
exit 1
@@ -143,12 +180,46 @@ if [ "$($CMD_ID -u)" != "0" ]; then
exit 1
fi
+# Check FAT label:
+if [ -n "${FATLABEL}" ]; then
+ if [ "x$(echo '${FATLABEL}'| tr -d '[:alnum:]_-.')" != "x" ]; then
+ echo "FAT label '${FATLABEL}' is not an acceptible name!"
+ exit 1
+ elif [ ${#FATLABEL} gt 11 ]; then
+ echo "FAT label '${FATLABEL}' must be less than 12 characters!"
+ exit 1
+ fi
+else
+ FATLABEL="USBSLACKINS"
+fi
+
# Prepare the environment:
+MININSFREE=2000 # minimum in MB required for a Slackware tree
UNATTENDED=${UNATTENDED:-0} # unattended means: never ask questions.
REFORMAT=${REFORMAT:-0} # do not try to reformat by default
LOGFILE=${LOGFILE:-/dev/null} # silence by default
+EXCLUDES=${EXCLUDES:-"--exclude=source \
+ --exclude=extra/aspell-word-lists \
+ --exclude=isolinux \
+ --exclude=usb-and-pxe-installers \
+ --exclude=pasture"} # not copied onto the stick
+
+# If we have been given a Slackware tree, we will create a full installer:
+if [ -n "$REPOSROOT" ]; then
+ if [ -d "$REPOSROOT" -a -f "$REPOSROOT/PACKAGES.TXT" ]; then
+ USBIMG=${USBIMG:-"$REPOSROOT/usb-and-pxe-installers/usbboot.img"}
+ PKGDIR=$(head -40 $REPOSROOT/PACKAGES.TXT | grep 'PACKAGE LOCATION: ' |head -1 |cut -f2 -d/)
+ if [ -z "$PKGDIR" ]; then
+ echo "*** Could not find the package subdirectory in '$REPOSROOT'!"
+ exit 1
+ fi
+ else
+ echo "*** Directory '$REPOSROOT' does not look like a Slackware tree!"
+ exit 1
+ fi
+fi
-# Sanity checks:
+# More sanity checks:
if [ -z "$TARGET" -o -z "$USBIMG" ]; then
echo "*** You must specify both the names of usbboot.img and the USB device!"
exit 1
@@ -162,7 +233,7 @@ fi
if [ $REFORMAT -eq 0 ]; then
if ! /sbin/blkid -t TYPE=vfat $TARGETPART 1>/dev/null 2>/dev/null ; then
echo "*** I fail to find a 'vfat' partition: '$TARGETPART' !"
- echo "*** If you want to format the USB thumb drive, add the '-f' parameter."
+ echo "*** If you want to format the USB thumb drive, add the '-f' parameter"
exit 1
fi
else
@@ -173,15 +244,20 @@ else
fi
if mount | grep -q $TARGETPART ; then
- echo "***"
echo "*** Please un-mount $TARGETPART first, then re-run this script!"
- echo "***"
exit 1
fi
# Check for prerequisites:
-if [ ! -r /usr/lib/syslinux/mbr.bin -o ! -x /usr/bin/syslinux ]; then
- echo "This script requires that the syslinux package is installed!"
+MBRBIN="/usr/lib/syslinux/mbr.bin"
+if [ ! -r $MBRBIN ]; then MBRBIN="/usr/share/syslinux/mbr.bin"; fi
+if [ ! -r $MBRBIN -o ! -x /usr/bin/syslinux ]; then
+ echo "*** This script requires that the 'syslinux' package is installed!"
+ exit 1
+fi
+
+if [ ! -x /usr/bin/mtools ]; then
+ echo "*** This script requires that the 'floppy' (mtools) package is installed!"
exit 1
fi
@@ -190,7 +266,7 @@ if [ $UNATTENDED -eq 0 ]; then
[ $REFORMAT -eq 1 ] && DOFRMT="format and " || DOFRMT=""
echo ""
- echo "# We are going to ${DOFRMT}use this device - '$TARGET'."
+ echo "# We are going to ${DOFRMT}use this device - '$TARGET':"
/sbin/fdisk -l $TARGET | while read LINE ; do echo "# $LINE" ; done
echo ""
@@ -212,7 +288,7 @@ if [ $REFORMAT -eq 1 ]; then
echo "--- Last chance! Press CTRL-C to abort!"
read -p "Or press ENTER to continue: " JUNK
fi
- ( reformat $TARGET ) 1>>$LOGFILE 2>&1
+ ( reformat $TARGET ${FATLABEL} ) 1>>$LOGFILE 2>&1
fi
# Create a temporary mount point for the image file:
@@ -234,45 +310,107 @@ else
chmod 700 $MNTDIR2
fi
+# Create a temporary directory to extract the initrd if needed:
+MNTDIR3=$(mktemp -d -p /mnt -t initrd.XXXXXX)
+if [ ! -d $MNTDIR3 ]; then
+ echo "*** Failed to create a temporary directory to extract the initrd!"
+ exit 1
+else
+ chmod 700 $MNTDIR3
+fi
+
# Mount the image file:
-mount -o loop $USBIMG $MNTDIR1
+mount -o loop,ro $USBIMG $MNTDIR1
+
+# Mount the vfat partition:
+mount -t vfat -o shortname=mixed $TARGETPART $MNTDIR2
-# Mount the vfat partition
-mount $TARGETPART $MNTDIR2
+# Do we have space to create a full Slackware USB install medium?
+if [ "$FULLINSTALLER" = "yes" ]; then
+ if [ $(df --block=1MB $TARGETPART |grep "^$TARGETPART" |tr -s ' ' |cut -f4 -d' ') -le $MININSFREE ]; then
+ echo "*** The partition '$TARGETPART' does not have enough"
+ echo "*** free space (${MININSFREE} MB) to create a Slackware installation medium!"
+ cleanup
+ exit 1
+ fi
+fi
-# Check available space:
-USBFREE=$(df -k $TARGETPART | grep "^$TARGETPART" |tr -s ' ' | cut -d' ' -f4)
-IMGSIZE=$(du -k $USBIMG | cut -f1)
+# Check available space for a Slackware USB setup bootdisk:
+USBFREE=$(df -k $TARGETPART |grep "^$TARGETPART" |tr -s ' ' |cut -d' ' -f4)
+IMGSIZE=$(du -k $USBIMG |cut -f1)
echo "--- Available free space on the the USB drive is $USBFREE KB"
-echo "--- Required free space: $IMGSIZE KB"
+echo "--- Required free space for installer: $IMGSIZE KB"
-# Exit when the image size appears larger than available space:
+# Exit when the installer image's size does not fit in available space:
if [ $IMGSIZE -gt $USBFREE ]; then
echo "*** The USB thumb drive does not have enough free space!"
# Cleanup and exit:
- umount -f $MNTDIR1
- umount -f $MNTDIR2
- rmdir $MNTDIR1 $MNTDIR2
+ cleanup
exit 1
fi
-# Copy files to the USB disk in it's own subdirectory '/syslinux'
-echo "--- Copying files to the USB drive..."
+if [ $UNATTENDED -eq 0 ]; then
+ # if we are running interactively, warn about overwriting files:
+ if [ -n "$REPOSROOT" ]; then
+ if [ -d $MNTDIR2/syslinux -o -d $MNTDIR2/$(basename $REPOSROOT) ]; then
+ echo "--- Your USB drive contains directories 'syslinux' and/or '$(basename $REPOSROOT)'"
+ echo "--- These will be overwritten. Press CTRL-C to abort now!"
+ read -p "Or press ENTER to continue: " JUNK
+ fi
+ else
+ if [ -d $MNTDIR2/syslinux ]; then
+ echo "--- Your USB drive contains directory 'syslinux'"
+ echo "--- This will be overwritten. Press CTRL-C to abort now!"
+ read -p "Or press ENTER to continue: " JUNK
+ fi
+ fi
+fi
+
+# Copy boot image files to the USB disk in its own subdirectory '/syslinux':
+echo "--- Copying boot files to the USB drive..."
mkdir -p $MNTDIR2/syslinux
cp -a $MNTDIR1/* $MNTDIR2/syslinux/
rm -f $MNTDIR2/syslinux/ldlinux.sys
-# Unmount everything:
-umount -f $MNTDIR1
-umount -f $MNTDIR2
+# If we are creating a full Slackware installer, there is a lot more to do:
+if [ "$FULLINSTALLER" = "yes" ]; then
+ # Extract the Slackware initrd for modifications we have to do:
+ echo "--- Extracting Slackware initrd.img..."
+ ( cd ${MNTDIR3}/
+ gunzip -cd ${MNTDIR2}/syslinux/initrd.img | cpio -i -d -H newc --no-absolute-filenames
+ ) 2>>$LOGFILE
+
+ # Modify installer files so that installing from USB stick will be easier:
+ echo "--- Modifying installer files..."
+ ( cd ${MNTDIR3}/
+ # Try to automatically mount the installer partition:
+ mkdir usbinstall
+ echo "mount -t vfat -o ro,shortname=mixed \$(/sbin/blkid -t LABEL=$FATLABEL | cut -f1 -d:) /usbinstall 1>/dev/null 2>&1" >> etc/rc.d/rc.S
+ # Adapt the dialogs so that pressing [OK] will be all there is to it:
+ sed -i -e 's# --menu# --default-item 6 --menu#' usr/lib/setup/SeTmedia
+ sed -i -e "s# 2> \$TMP/sourcedir# /usbinstall/$(basename $REPOSROOT)/$PKGDIR 2> \$TMP/sourcedir#" usr/lib/setup/INSdir
+ ) 2>>$LOGFILE
+
+ # Recreate the initrd:
+ echo "--- Gzipping the initrd image again:"
+ ( cd ${MNTDIR3}/
+ find . |cpio -o -H newc |gzip > ${MNTDIR2}/syslinux/initrd.img
+ ) 2>>$LOGFILE
+
+ # Copy Slackware package tree (no sources) to the USB disk -
+ # we already made sure that ${REPOSROOT} does not end with a '/'
+ echo "--- Copying Slackware package tree to the USB drive..."
+ rsync -rptHDL $EXCLUDES $REPOSROOT $MNTDIR2/
+fi
-# Remove the temporary directories:
-rmdir $MNTDIR1 $MNTDIR2
+# Unmount/remove stuff:
+sync
+cleanup
# Run syslinux and write a good MBR:
echo "--- Making the USB drive '$TARGET' bootable..."
( makebootable $TARGET ) 1>>$LOGFILE 2>&1
/usr/bin/syslinux -s -d /syslinux $TARGETPART 1>>$LOGFILE 2>&1
-dd if=/usr/lib/syslinux/mbr.bin of=$TARGET 1>>$LOGFILE 2>&1
+dd if=$MBRBIN of=$TARGET 1>>$LOGFILE 2>&1
# THE END