build: remove TARGET_IMAGES_PAD option

It's being used only in x86 target to produce combined images, where
it's mandatory to have padded images in order to produce working
squashfs combined images usable in QEMU.

Currently we're producing unusable x86 combined squashfs images
(18.06.1, 18.06.2 and snapshots) as we don't enable TARGET_IMAGES_PAD,
thus providing very small space for the overlay filesystem, leading to
the following with OpenWrt 18.06.1 r7258-5eb055306f images on x86 QEMU:

 root@(none):/# mount | egrep 'root|overlay'
  /dev/root on /rom type squashfs
  /dev/loop0 on /overlay type ext4
  overlayfs:/overlay on / type overlay

 root@(none):/# df -h | egrep 'root|overlay|Size'
  Filesystem                Size      Used Available Use% Mounted on
  /dev/root                 2.5M      2.5M         0 100% /rom
  /dev/loop0              113.0K      8.0K     97.0K   8% /overlay
  overlayfs:/overlay      113.0K      8.0K     97.0K   8% /

So we should rather ensure proper image padding in image generation code
and we shouldn't rely on config options in order to generate usable
images.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
Petr Štetiar 2019-03-27 11:31:14 +01:00
parent 029c970464
commit d03ef97c1b

View File

@ -241,23 +241,17 @@ menu "Target Images"
bool "Build VirtualBox image files (VDI)"
depends on TARGET_x86
select GRUB_IMAGES
select TARGET_IMAGES_PAD
select PACKAGE_kmod-e1000
config VMDK_IMAGES
bool "Build VMware image files (VMDK)"
depends on TARGET_x86
select GRUB_IMAGES
select TARGET_IMAGES_PAD
select PACKAGE_kmod-e1000
config TARGET_IMAGES_PAD
bool "Pad images to filesystem size (for JFFS2)"
depends on GRUB_IMAGES
config TARGET_IMAGES_GZIP
bool "GZip images"
depends on TARGET_IMAGES_PAD || TARGET_ROOTFS_EXT4FS || TARGET_x86
depends on TARGET_ROOTFS_EXT4FS || TARGET_x86
default y
comment "Image Options"