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fs/ext2: add support for ext2 rev0 and rev1

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Some bootloaders have a buggy ext2 support, and require ext2 rev1
instead of the traditional ext2 rev0 that genext2fs produces.

tune2fs accepts only one '-O list' at a time, so we need to construct
a list of -O options.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Yann E. MORIN
2013-04-11 12:17:53 +00:00
committed by Peter Korsgaard
parent aaefab09c7
commit 5fd27fc849
3 changed files with 28 additions and 7 deletions
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20
fs/ext2/Config.in
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@@ -6,12 +6,20 @@ config BR2_TARGET_ROOTFS_EXT2
if BR2_TARGET_ROOTFS_EXT2
config BR2_TARGET_ROOTFS_EXT2_2
bool
choice
bool "ext2/3/4 variant"
default BR2_TARGET_ROOTFS_EXT2_2
default BR2_TARGET_ROOTFS_EXT2_2r0
config BR2_TARGET_ROOTFS_EXT2_2
bool "ext2"
config BR2_TARGET_ROOTFS_EXT2_2r0
bool "ext2 (rev0)"
select BR2_TARGET_ROOTFS_EXT2_2
config BR2_TARGET_ROOTFS_EXT2_2r1
bool "ext2 (rev1)"
select BR2_TARGET_ROOTFS_EXT2_2
config BR2_TARGET_ROOTFS_EXT2_3
bool "ext3"
@@ -27,6 +35,12 @@ config BR2_TARGET_ROOTFS_EXT2_GEN
default 3 if BR2_TARGET_ROOTFS_EXT2_3
default 4 if BR2_TARGET_ROOTFS_EXT2_4
# All ext generations are revision 1, except ext2r0, which is revision 0
config BR2_TARGET_ROOTFS_EXT2_REV
int
default 0 if BR2_TARGET_ROOTFS_EXT2_2r0
default 1 if !BR2_TARGET_ROOTFS_EXT2_2r0
config BR2_TARGET_ROOTFS_EXT2_BLOCKS
int "size in blocks (leave at 0 for auto calculation)"
default 0