diff options
| -rw-r--r-- | packages/images/base-image.bb | 54 |
1 files changed, 38 insertions, 16 deletions
diff --git a/packages/images/base-image.bb b/packages/images/base-image.bb index 74b938ba53..20a5fd9445 100644 --- a/packages/images/base-image.bb +++ b/packages/images/base-image.bb @@ -9,18 +9,9 @@ # The rationale for naming it 'base-image' is that this image is the # base upon which you can install any other functionality you desire. -# Key features are: - -# 1) Must be able to mount attached storage devices like SD cards, CF -# cards, internal disks, external USB disks, etc. Should support -# various filesystem choices, but ext2 at a minimum. The rationale -# for this is that you need storage to be able to install significant -# new functionality. - -# 2) Must be able to boot from internal flash, or directly from a -# filesystem stored on the attached storage. The rationale for this -# is that you will want to boot from attached storage instead of -# messing around with ipkg-link. +# See the end of this file for further rationale and policy regarding +# the contents of this image, and the criteria which are used to make +# decisions about adding and removing packages from this image. # Although it is only fully tested with the Angstrom distro, this # image is intended to be distro-agnostic. @@ -36,19 +27,50 @@ DEPENDS = "\ task-base-usbhost task-base-ext2 \ " -IMAGE_INSTALL_TASKS = "\ - " - IMAGE_INSTALL = "\ task-boot \ task-distro-base task-machine-base \ ${DISTRO_SSH_DAEMON} \ ${DISTRO_PACKAGE_MANAGER} \ task-base-usbhost task-base-ext2 \ - ${IMAGE_INSTALL_TASKS} \ " export IMAGE_BASENAME = "base-image" IMAGE_LINGUAS = "" inherit image + +# Key features of this image are: + +# 1) Must be able to mount attached storage devices like SD cards, CF +# cards, internal disks, external USB disks, etc. Should support +# various filesystem choices, but ext2 at a minimum. The rationale +# for this is that you need storage to be able to install significant +# new functionality. + +# 2) Must be able to boot from internal flash, or directly from a +# filesystem stored on the attached storage. The rationale for this +# is that you will want to boot from attached storage instead of +# messing around with ipkg-link. + +# Rationale and policy: + +# 'base-image' is the smallest possible image which allows you to ssh +# into a device via it's native network interface, and install +# packages from feeds across the network into internal flash or onto +# an attached storage device. + +# It is "larger" than minimal-image (which is strictly only that which +# is required to boot and get ssh access to the device, and nothing +# else), but is "smaller" than console-image (which has a whole lot of +# stuff in it which could easily be ipkg installed after boot rather +# than being in the initial rootfs). + +# It is required to always be small enough to fit in the internal +# flash rootfs partition of an NSLU2 (as an example of the smaller end +# of flash sizes that OE supports), and features will be removed from +# the image to ensure that this is always the case. Any feature that +# can be installed over the network using the package manager after +# the first boot is always fair game for removal at any time, and +# patches are welcome to make base-image as small as possible while +# still retaining the ability to subsequently install that feature. |