buildroot/fs/ext2, branch 2017.05

ext2: add help text for BR2_TARGET_ROOTFS_EXT2_BLOCKS

2017-05-04T15:15:13+00:00

Signed-off-by: J Evans Signed-off-by: Yann E. MORIN Signed-off-by: Thomas Petazzoni

fs/ext2: ensure -b option is always set for mke2img

2017-04-30T17:31:52+00:00

Signed-off-by: J Evans Acked-by: "Yann E. MORIN" Signed-off-by: Thomas Petazzoni

fs/ext2: Remove support for auto-calculation of rootfs size

2017-03-25T13:41:05+00:00

Auto-calculation of the rootfs size cannot be done in a reliable way as it depends on the host filesystem and is broken on non ext4 host (see bugs [1] [2]). So let the user specify the size he wants for his rootfs. [1] https://bugs.busybox.net/show_bug.cgi?id=8831 [2] https://bugs.busybox.net/show_bug.cgi?id=9496 Signed-off-by: Sébastien Szymanski Reviewed-by: Arnout Vandecappelle (Essensium/Mind) [Thomas: as suggested by Arnout, use 60 MB as the default size instead of 64 MB.] Signed-off-by: Thomas Petazzoni

fs/ext2: default to ext2 rev1

2016-12-14T14:59:38+00:00

Rev0 is very old (E.G. from before Linux was maintained in git), the kernel prints a scary warning when used: EXT4-fs warning (device sda): ext4_update_dynamic_rev:746: updating to rev 1 because of new feature flag, running e2fsck is recommended And rev0 support is broken in u-boot 2016.11: http://lists.denx.de/pipermail/u-boot/2016-December/275916.html So default to rev1 instead. Signed-off-by: Peter Korsgaard

fs/ext2: fix double quoted label

2016-11-21T20:16:02+00:00

Since the commit 6dd7bbb59134799ed3d7343f238b3b02592faebf, the label does not need anymore to be quoted. Even worse it *must* not be simple-quoted, unless the label will contain the double-quotes from the config variable BR2_TARGET_ROOTFS_EXT2_LABEL. The commit mentionned above has replaced echo by printf: - echo "$$(ROOTFS_$(2)_CMD)" >> $$(FAKEROOT_SCRIPT) + $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT) Since this commit the rootfs label contains extra double-quotes. $ blkid /dev/mmcblk0: LABEL=""BR 2016.08"" UUID="xxx" ^ ^ With this fix, the extra double-quotes have disappeared: /dev/mmcblk0: LABEL="BR 2016.11-rc2" UUID="yyy" Signed-off-by: Gaël PORTAY Acked-by: "Yann E. MORIN" Signed-off-by: Thomas Petazzoni

fs/ext2: add options for extra space and extra inodes

2015-10-31T14:56:56+00:00

Add two options to the ext2 filesystem, one to add extra free space, one to add extra free inodes. Signed-off-by: "Yann E. MORIN" Cc: Gustavo Zacarias Tested-by: Gustavo Zacarias Acked-by: Gustavo Zacarias Cc: Martin Bark Signed-off-by: Thomas Petazzoni

fs: declare phony targets as such

2015-04-14T08:12:32+00:00

This commit improves the filesystem handling code to declare its various targets as PHONY when appropriate. Signed-off-by: Thomas Petazzoni Reviewed-by: "Yann E. MORIN"

fs/ext2: add option to specify a filesystem label

2014-12-07T21:07:22+00:00

Filesystems of the ext familly can carry a filesystem label. Add an option for the user to specify such a label. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Cc: Károly Kasza Tested-by: Karoly Kasza Reviewed-by: Karoly Kasza Reviewed-by: Thomas Petazzoni Tested-by: Thomas Petazzoni Signed-off-by: Thomas Petazzoni

fs/ext2: use the new mke2img host package

2014-12-07T21:06:55+00:00

And get rid of the old genext2fs.sh wrapper. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Tested-by: Karoly Kasza Reviewed-by: Karoly Kasza Reviewed-by: Thomas Petazzoni Tested-by: Thomas Petazzoni Signed-off-by: Thomas Petazzoni

package/mke2img: new package

2014-12-07T21:06:44+00:00

Currently, we are using a shell script called genext2fs, that impersonates the real genext2fs. But that script does much more than just call genextfs: it also calls tune2fs and e2fsck. Because it impersonates genext2fs, we can not easily add new options, and are constrained by the genext2fs options. But it turns out that, of all the options supported by the real genext2fs, we only really care for a subset, namely: - number of blocks - number of inodes - percentage of blocks reeserved to root - the root directory which to generate the image from So, we introduce a new host package, mke2img, that is intended to eventually replace genext2fs.sh. This new script is highly modeled from the existing genext2fs.sh, but was slightly refreshed, and a new, supposedly sane set of options has been choosen for the features we need (see above), and some new options were added, too, rather than relying on the arguments order or environment variables: -b number of blocks in the filesystem -i number of inodes in the filesystem -r percentage of reserved blocks * -d directory containing the root of the filesystem * -o output image file -G extfs generation: 2, 3, or 4 (default: 2) -R ext2 revision: 0 or 1 (default 1) -l filesystem label -u filesystem UUID; if not specified, a random one is used * Mandatory options Since the upstream e2fsprogs are expected to release a new mke2fs that will be able to generate a filesystem image from a directory, we then will be able to replace all the logic in mke2img, to use mke2fs instead of the (relatively fragile) combination of the three tools we currently use. An entry is added for it in the "Host utilities" menu, so it can be selected for use by post-{build,image} scripts. The ext2 filesystem selection is changed to select that now. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Tested-by: Karoly Kasza Reviewed-by: Karoly Kasza Tested-by: Thomas Petazzoni Signed-off-by: Thomas Petazzoni