diff options
Diffstat (limited to 'release/tools/vmimage.subr')
| -rw-r--r-- | release/tools/vmimage.subr | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/release/tools/vmimage.subr b/release/tools/vmimage.subr index 6207440149b4..828db355aedf 100644 --- a/release/tools/vmimage.subr +++ b/release/tools/vmimage.subr @@ -67,6 +67,35 @@ vm_create_base() { return 0 } +vm_copy_base() { + # Creates a new UFS root filesystem and copies the contents of the + # current root filesystem into it. This produces a "clean" disk + # image without any remnants of files which were created temporarily + # during image-creation and have since been deleted (e.g., downloaded + # package archives). + + mkdir -p ${DESTDIR}/old + mdold=$(mdconfig -f ${VMBASE}) + mount /dev/${mdold} ${DESTDIR}/old + + truncate -s ${VMSIZE} ${VMBASE}.tmp + mkdir -p ${DESTDIR}/new + mdnew=$(mdconfig -f ${VMBASE}.tmp) + newfs -j /dev/${mdnew} + mount /dev/${mdnew} ${DESTDIR}/new + + tar -cf- -C ${DESTDIR}/old . | tar -xf- -C ${DESTDIR}/new + + umount /dev/${mdold} + rmdir ${DESTDIR}/old + mdconfig -d -u ${mdold} + + umount /dev/${mdnew} + rmdir ${DESTDIR}/new + mdconfig -d -u ${mdnew} + mv ${VMBASE}.tmp ${VMBASE} +} + vm_install_base() { # Installs the FreeBSD userland/kernel to the virtual machine disk. |