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fs/ext2: use the new mke2img host package
And get rid of the old genext2fs.sh wrapper. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Karoly Kasza <kaszak@gmail.com> Reviewed-by: Karoly Kasza <kaszak@gmail.com> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN
Thomas Petazzoni
parent
9d19f8fc86
commit
d6831e5e97
@ -4,27 +4,24 @@
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#
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################################################################################
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EXT2_OPTS :=
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EXT2_OPTS = -G $(BR2_TARGET_ROOTFS_EXT2_GEN) -R $(BR2_TARGET_ROOTFS_EXT2_REV)
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
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EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
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endif
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
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EXT2_OPTS += -N $(BR2_TARGET_ROOTFS_EXT2_INODES)
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EXT2_OPTS += -i $(BR2_TARGET_ROOTFS_EXT2_INODES)
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endif
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),0)
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EXT2_OPTS += -m $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
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EXT2_OPTS += -r $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
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endif
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ROOTFS_EXT2_DEPENDENCIES = host-genext2fs host-e2fsprogs
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EXT2_ENV = GEN=$(BR2_TARGET_ROOTFS_EXT2_GEN)
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EXT2_ENV += REV=$(BR2_TARGET_ROOTFS_EXT2_REV)
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ROOTFS_EXT2_DEPENDENCIES = host-mke2img
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define ROOTFS_EXT2_CMD
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PATH=$(BR_PATH) $(EXT2_ENV) fs/ext2/genext2fs.sh -d $(TARGET_DIR) $(EXT2_OPTS) $@
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PATH=$(BR_PATH) mke2img -d $(TARGET_DIR) $(EXT2_OPTS) -o $@
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endef
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rootfs-ext2-symlink:
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@ -1,121 +0,0 @@
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#!/bin/sh
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# genext2fs wrapper calculating needed blocks/inodes values if not specified
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set -e
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export LC_ALL=C
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CALC_BLOCKS=1
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CALC_INODES=1
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EXT_OPTS=
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EXT_OPTS_O=
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while getopts x:d:D:b:i:N:m:g:e:zfqUPhVv f
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do
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case $f in
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b) CALC_BLOCKS=0 ;;
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N) CALC_INODES=0; INODES=$OPTARG ;;
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d) TARGET_DIR=$OPTARG ;;
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esac
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done
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eval IMG="\"\${${OPTIND}}\""
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# calculate needed inodes
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if [ $CALC_INODES -eq 1 ];
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then
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INODES=$(find $TARGET_DIR | wc -l)
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INODES=$(expr $INODES + 400)
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set -- $@ -N $INODES
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fi
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# calculate needed blocks
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if [ $CALC_BLOCKS -eq 1 ];
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then
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# size ~= superblock, block+inode bitmaps, inodes (8 per block), blocks
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# we scale inodes / blocks with 10% to compensate for bitmaps size + slack
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BLOCKS=$(du -s -c -k $TARGET_DIR | grep total | sed -e "s/total//")
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BLOCKS=$(expr 500 + \( $BLOCKS + $INODES / 8 \) \* 11 / 10)
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# we add 1300 blocks (a bit more than 1 MiB, assuming 1KiB blocks) for
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# the journal if ext3/4
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# Note: I came to 1300 blocks after trial-and-error checks. YMMV.
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if [ ${GEN} -ge 3 ]; then
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BLOCKS=$(expr 1300 + $BLOCKS )
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fi
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set -- $@ -b $BLOCKS
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fi
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e2tunefsck() {
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# genext2fs does not generate a UUID, but fsck will whine if one is
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# is missing, so we need to add a UUID.
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# Of course, this has to happend _before_ we run fsck.
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# Also, some ext4 metadata are based on the UUID, so we must
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# set it before we can convert the filesystem to ext4.
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# Although a random UUID may seem bad for reproducibility, there
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# already are so many things that are not reproducible in a
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# filesystem: file dates, file ordering, content of the files...
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tune2fs -U random "${IMG}"
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# Upgrade the filesystem
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if [ $# -ne 0 ]; then
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tune2fs "$@" "${IMG}"
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fi
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# After changing filesystem options, running fsck is required
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# (see: man tune2fs). Running e2fsck in other cases will ensure
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# coherency of the filesystem, although it is not required.
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# 'e2fsck -pDf' means:
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# - automatically repair
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# - optimise and check for duplicate entries
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# - force checking
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# Sending output to oblivion, as e2fsck can be *very* verbose,
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# especially with filesystems generated by genext2fs.
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# Exit codes 1 & 2 are OK, it means fs errors were successfully
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# corrected, hence our little trick with $ret.
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ret=0
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e2fsck -pDf "${IMG}" >/dev/null || ret=$?
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case ${ret} in
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0|1|2) ;;
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*) exit ${ret};;
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esac
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printf "\ne2fsck was successfully run on '%s' (ext%d)\n\n" \
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"${IMG##*/}" "${GEN}"
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# Remove count- and time-based checks, they are not welcome
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# on embedded devices, where they can cause serious boot-time
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# issues by tremendously slowing down the boot.
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tune2fs -c 0 -i 0 "${IMG}"
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}
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# Check we know what generation to generate
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case "${GEN}:${REV}" in
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2:0|2:1|3:1|4:1)
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;;
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*)
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printf "%s: unknown ext generation '%s' and/or revision '%s'\n" \
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"${0##*/}" "${GEN}" "${REV}" >&2
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exit 1
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;;
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esac
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# Upgrade to rev1 if needed
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if [ ${REV} -ge 1 ]; then
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EXT_OPTS_O="${EXT_OPTS_O},filetype"
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fi
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# Add a journal for ext3 and above
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if [ ${GEN} -ge 3 ]; then
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EXT_OPTS="${EXT_OPTS} -j -J size=1"
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fi
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# Add ext4 specific features
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if [ ${GEN} -ge 4 ]; then
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EXT_OPTS_O="${EXT_OPTS_O},extents,uninit_bg,dir_index"
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fi
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# Add our -O options (there will be at most one leading comma, remove it)
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if [ -n "${EXT_OPTS_O}" ]; then
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EXT_OPTS="${EXT_OPTS} -O ${EXT_OPTS_O#,}"
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fi
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# Generate and upgrade the filesystem
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genext2fs "$@"
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e2tunefsck ${EXT_OPTS}
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