From d90e805fe607f6455a6ae8631e91c960ba4deaa2 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Thu, 29 Nov 2012 17:37:15 +0000 Subject: build: Add TARGET_ROOTFS_RESERVED_PCT option to reduce wasted space MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The genext2fs tool will 'reserve' 5% of the image size by default, apparently by creating a huge lost+found directory. In fact it seemed to be much more than 5% in practice — I saw an image with 8MiB used, and recovered about 2MiB of it by deleting the 'empty' lost+found directory: /dev/loop0 48377 8482 37438 19% /mnt/spare # rmdir lost+found/ /dev/loop0 48377 6014 39906 14% /mnt/spare This makes it configurable, but leaves it at the genext2fs default of 5% for now. It should probably be changed to default to zero, but that can be a separate patch. Signed-off-by: David Woodhouse Signed-off-by: Gabor Juhos SVN-Revision: 34408 --- Config.in | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Config.in') diff --git a/Config.in b/Config.in index 46f7ce8385..76acbe5944 100644 --- a/Config.in +++ b/Config.in @@ -125,6 +125,13 @@ menu "Target Images" help Allows you to change the maximum number of inodes in the root filesystem + config TARGET_ROOTFS_RESERVED_PCT + int "Percentage of reserved blocks in root filesystem" + depends TARGET_ROOTFS_EXT4FS + default 5 + help + Allows you to change the percentage of reserved blocks in the root filesystem + endmenu menu "Global build settings" -- cgit v1.2.3