diff options
Diffstat (limited to 'lx-trainer-vm')
| -rwxr-xr-x | lx-trainer-vm/dd-multi.sh | 122 |
1 files changed, 63 insertions, 59 deletions
diff --git a/lx-trainer-vm/dd-multi.sh b/lx-trainer-vm/dd-multi.sh index 01105aa..d31482b 100755 --- a/lx-trainer-vm/dd-multi.sh +++ b/lx-trainer-vm/dd-multi.sh @@ -27,6 +27,22 @@ if [ `id -u` -ne 0 ]; then exit 1 fi +if [ -z "`which mkexfatfs`" ]; then + echo "error: mkexfatfs program not found" + echo + echo "try this:" + echo "sudo apt install exfat-utils exfat-fuse" + exit 1 +fi + +if [ -z "`which qemu-img`" ]; then + echo "error: qemu-img program not found" + echo + echo "try this:" + echo "sudo apt install qemu-utils" + exit 1 +fi + # gather arguments SRC="" LAYERS="" @@ -51,8 +67,8 @@ for arg in $@; do esac done -# source must be file or block device -if [ ! -f "$SRC" -a ! -b "$SRC" ]; then +# source must be file +if [ ! -f "$SRC" ]; then echo "error: invalid src" usage_exit fi @@ -80,19 +96,51 @@ if [ "`env - /sbin/parted --script $SRC print | \ usage_exit fi +SRC_FILE="${SRC}_copy.img" +VMDK_FILE="${SRC}.vmdk" + +echo 'creating a sparse copy of the image' +cp -a --sparse=always $SRC $SRC_FILE + +# setup temp directory for mountpoints +TMP_ROOT="/tmp/dd-multi-`date +%s`.$$" +rm -rf $TMP_ROOT +mkdir -p $TMP_ROOT +echo "using directory $TMP_ROOT for mount points" + +if [ -n "$LAYERS" ]; then + LOOPDEV=`losetup --show -P -f $SRC_FILE` + LOOPPT="${LOOPDEV}p${ROOTPT}" + + mkdir -p ${TMP_ROOT}${LOOPPT} + mount $LOOPPT ${TMP_ROOT}${LOOPPT} + + for tarball in $LAYERS; do + echo "unpacking layer: $tarball" + tar -x -f $tarball --numeric-owner -C ${TMP_ROOT}${LOOPPT} + done + + sync + umount ${LOOPPT} + + losetup -d $LOOPDEV +fi + +echo 'creating vmdk file' +qemu-img convert -O vmdk $SRC_FILE $VMDK_FILE + # delete mbr's dd if=/dev/zero bs=10M count=1 2> /dev/null | tee $DESTS > /dev/null +partprobe $DESTS # efficiently copy source to all destinations and rescan devices -echo 'monitor copy status with: sudo kill -s USR1 `pidof dd`' -dd if=$SRC bs=64M | tee $DESTS > /dev/null - -echo 'setting up /home partition' +echo 'writing image to disks, monitor with: sudo kill -s USR1 `pidof dd`' +dd if=$SRC_FILE bs=64M | tee $DESTS > /dev/null -# fix partition table and add extra /home partition +# fix partition table and add extra partition for dest in $DESTS; do - parted $dest print fix > /dev/null 2>&1 - parted --script --align optimal -- $dest mkpart /home 17GB -1MB + echo fix | sudo parted ---pretend-input-tty $dest print > /dev/null 2>&1 + parted --script --align optimal -- $dest mkpart /extra ntfs 128GB 256GB done # rescan devices @@ -112,66 +160,22 @@ for dest in $DESTS; do sleep 1 done done +sleep 1 -# create ext4 on home partition +# create exfat on extra partition for dest in $DESTS; do - mkfs.ext4 -L lxhome ${dest}${EXTRAPT} > /dev/null 2>&1 & + mkexfatfs ${dest}${EXTRAPT} > /dev/null 2>&1 done -wait - -# setup temp directory for mountpoints -TMP_ROOT="/tmp/dd-multi-`date +%s`.$$" -rm -rf $TMP_ROOT -mkdir -p $TMP_ROOT -echo "using directory $TMP_ROOT for mount points" for dest in $DESTS; do - # create mountpoints - mkdir -p ${TMP_ROOT}${dest}${ROOTPT} mkdir -p ${TMP_ROOT}${dest}${EXTRAPT} - - # mount partitions - mount ${dest}${ROOTPT} ${TMP_ROOT}${dest}${ROOTPT} mount ${dest}${EXTRAPT} ${TMP_ROOT}${dest}${EXTRAPT} - - # move home directories (if any) to home partition - if [ -n "`ls ${TMP_ROOT}${dest}${ROOTPT}/home`" ]; then - echo "moving /home/* to ${dest}${EXTRAPT}" - mv ${TMP_ROOT}${dest}${ROOTPT}/home/* ${TMP_ROOT}${dest}${EXTRAPT}/ - fi - - # setup home partition to be mounted as /home - echo 'LABEL=lxhome /home ext4 defaults 0 0' | \ - tee -a ${TMP_ROOT}${dest}${ROOTPT}/etc/fstab > /dev/null - - # remount home to /home + cp -v $VMDK_FILE ${TMP_ROOT}${dest}${EXTRAPT}/training-hd.vmdk + sync umount ${TMP_ROOT}${dest}${EXTRAPT} - mount ${dest}${EXTRAPT} ${TMP_ROOT}${dest}${ROOTPT}/home -done - -# unpack layers (in parallel) -for tarball in $LAYERS; do - echo "unpacking layer: $tarball" - for dest in $DESTS; do - tar -x -f $tarball --numeric-owner \ - -C ${TMP_ROOT}${dest}${ROOTPT} & - done - wait -done - -for dest in $DESTS; do - # If there were no layer files added, umount might return a busy - # error since we just mounted. (Possibly a kernel bug.) By - # accessing the filesytem before unmounting it, the mount/umount - # problem seems to go away. Use "ls" to access the filesystem. - ls ${TMP_ROOT}${dest}${ROOTPT}/home/ > /dev/null - - # unmount partitions - umount ${TMP_ROOT}${dest}${ROOTPT}/home - umount ${TMP_ROOT}${dest}${ROOTPT} done # cleanup temp directory -rm -rf $TMP_ROOT +rm -rf $TMP_ROOT $VMDK_FILE $SRC_FILE echo 'done, no errors' |