| #!/bin/sh |
| # genext2fs wrapper calculating needed blocks/inodes values if not specified |
| |
| export LC_ALL=C |
| |
| CALC_BLOCKS=1 |
| CALC_INODES=1 |
| |
| while getopts x:d:D:b:i:N:m:g:e:zfqUPhVv f |
| do |
| case $f in |
| b) CALC_BLOCKS=0 ;; |
| N) CALC_INODES=0; INODES=$OPTARG ;; |
| d) TARGET_DIR=$OPTARG ;; |
| esac |
| done |
| |
| # calculate needed inodes |
| if [ $CALC_INODES -eq 1 ]; |
| then |
| INODES=$(find $TARGET_DIR | wc -l) |
| INODES=$(expr $INODES + 400) |
| set -- $@ -N $INODES |
| fi |
| |
| # calculate needed blocks |
| if [ $CALC_BLOCKS -eq 1 ]; |
| then |
| # size ~= superblock, block+inode bitmaps, inodes (8 per block), blocks |
| # we scale inodes / blocks with 10% to compensate for bitmaps size + slack |
| BLOCKS=$(du -s -c -k $TARGET_DIR | grep total | sed -e "s/total//") |
| BLOCKS=$(expr 500 + \( $BLOCKS + $INODES / 8 \) \* 11 / 10) |
| set -- $@ -b $BLOCKS |
| fi |
| |
| exec genext2fs $@ |
