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| author | Rafał Miłecki <rafal@milecki.pl> | 2020-02-20 13:40:55 +0100 |
|---|---|---|
| committer | Rafał Miłecki <rafal@milecki.pl> | 2020-03-21 22:31:35 +0100 |
| commit | 8abefc8896e7138a101fbb3d228946c43321503e (patch) | |
| tree | f71f2ca74fc2d6f7a881c68792ce822ff62ba46b | |
| parent | 547f1ec25af59f9e69ae3cb69d1312e63138d4bf (diff) | |
| download | upstream-8abefc8896e7138a101fbb3d228946c43321503e.tar.gz upstream-8abefc8896e7138a101fbb3d228946c43321503e.tar.bz2 upstream-8abefc8896e7138a101fbb3d228946c43321503e.zip | |
bcm53xx: sysupgrade: optimize building UBI image
Use "truncate" to adjust size of existing file instead of "dd" which
required creating a copy. This saves space on tmpfs. It may be as low
as 2.1 MiB when using OpenWrt default user space and way more (20+ MiB)
when flashing vendor firmware.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
| -rw-r--r-- | target/linux/bcm53xx/base-files/lib/upgrade/platform.sh | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh index 1686462cde..40b2ef67be 100644 --- a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh +++ b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh @@ -1,4 +1,4 @@ -RAMFS_COPY_BIN='osafeloader oseama otrx' +RAMFS_COPY_BIN='osafeloader oseama otrx truncate' PART_NAME=firmware @@ -281,7 +281,7 @@ platform_do_upgrade_nand_trx() { while [ "$(dd if=$dir/root skip=$ubi_length bs=1 count=4 2>/dev/null)" = "UBI#" ]; do ubi_length=$(($ubi_length + 131072)) done - dd if=$dir/root of=/tmp/root.ubi bs=131072 count=$((ubi_length / 131072)) 2>/dev/null + truncate -s $ubi_length $dir/root [ $? -ne 0 ] && { echo "Failed to prepare new UBI image." return @@ -289,7 +289,7 @@ platform_do_upgrade_nand_trx() { # Flash mtd write /tmp/kernel.trx firmware || exit 1 - nand_do_upgrade /tmp/root.ubi + nand_do_upgrade $dir/root } platform_do_upgrade_nand_seama() { |