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truncate to shrink the file if required

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girish@cloudron.io
2016-02-25 19:26:46 -08:00
parent 10967ff8ce
commit 7a8b457ce9
1 changed files with 1 additions and 1 deletions
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installer/systemd/box-setup.sh
+1 -1
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@@ -24,7 +24,6 @@ readonly app_count=$((${physical_memory} / 200)) # estimated app count
readonly disk_size_gb=$(fdisk -l ${disk_device} | grep "Disk ${disk_device}" | awk '{ print $3 }')
readonly disk_size=$((disk_size_gb * 1024))
readonly backup_swap_size=1024
# readonly system_size=5120 # 5 gigs for system libs, installer, box code and tmp
readonly system_size=10240 # 10 gigs for system libs, apps images, installer, box code and tmp
readonly ext4_reserved=$((disk_size * 5 / 100)) # this can be changes using tune2fs -m percent /dev/vda1
@@ -60,6 +59,7 @@ home_data_size=$((disk_size - system_size - swap_size - backup_swap_size - ext4_
echo "Resizing up btrfs user data to size ${home_data_size}M"
umount "${USER_DATA_DIR}"
fallocate -l "${home_data_size}m" "${USER_DATA_FILE}" # does not overwrite existing data
truncate -s "${home_data_size}m" "${USER_DATA_FILE}" # this will shrink it if the file had existed. this is useful when running this script on a live system
mount "${USER_DATA_FILE}"
btrfs filesystem resize max "${USER_DATA_DIR}"