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我在我的yocto版本中使用github.com/mendersoftware/meta-mender。我想使用sed在我自己的層中使用bbappend文件編輯/ etc/fstab。具體來說，meta-mender目前正在提供他們自己的fstab文件並使用base-files_3.%.bbappend進行編輯，我只是想從生成的/ etc/fstab中刪除auto關鍵字。自定義bitbake bbapend不正確追加修正器fstab文件
問題是，當我在base-files_3。％.bbappend的圖層中提供自己的bbappend（我的圖層比meta-mender具有更高的優先級）時，meta-mender fstab似乎沒有創建完全可以，而開放嵌入式的股票代替。
這裏是我的元層/食譜核心/基本的文件/基files_3％bbappend：。
do_install_append(){
sed -i -e 's$.*@[email protected]*[email protected][email protected] /uboot @[email protected] defaults,sync 0 0$' ${D}${sysconfdir}/fstab
sed -i -e 's$.*@[email protected]*[email protected][email protected] /data @[email protected] defaults 0 0$' ${D}${sysconfdir}/fstab
}
如果我運行bitbake -e base-files，然後查找do_install功能，你可以清楚地看到我sed命令被正確追加到元修理者/元修理者核心/食譜核心/基本的文件/基files_3：
do_install() {
for d in /boot /dev /bin /sbin /lib /etc /etc/default /etc/skel /lib /mnt /proc /home/root /run /usr /usr/bin /usr/share/doc/base-files-3.0.14 /usr/games /usr/include /usr/lib /usr/sbin /usr/share /usr/share/common-licenses /usr/share/dict /usr/share/info /usr/share/man /usr/share/misc /var /var/backups /var/lib /sys /var/lib/misc /var/spool /var/volatile /var/volatile/log /home /usr/src /var/local /media; do
install -m 0755 -d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image$d
done
for d in /tmp /var/volatile/tmp; do
install -m 1777 -d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image$d
done
for d in ; do
install -m 2775 -d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image$d
done
for d in log tmp; do
ln -sf volatile/$d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/var/$d
done
ln -snf ../run /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/var/run
ln -snf ../run/lock /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/var/lock
do_install_basefilesissue
rotation=`cat /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/rotation`
if [ "$rotation" != "0" ]; then
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/rotation /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/rotation
fi
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/fstab /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/fstab
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/filesystems /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/filesystems
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/usbd /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/default/usbd
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/profile /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/profile
sed -i 's#ROOTHOME#/home/root#' /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/profile
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/shells /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/shells
install -m 0755 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/share/dot.profile /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/skel/.profile
install -m 0755 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/share/dot.bashrc /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/skel/.bashrc
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/nsswitch.conf /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/nsswitch.conf
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/host.conf /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/host.conf
install -m 0644 /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/motd /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/motd
ln -sf /proc/mounts /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/mtab
install -d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/uboot
install -d /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/data
sed -i -e 's$.*@[email protected]*[email protected][email protected] /uboot @[email protected] defaults,sync 0 0$' /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/fstab
sed -i -e 's$.*@[email protected]*[email protected][email protected] /data @[email protected] defaults 0 0$' /home/user/Desktop/yocto/build/tmp/work/raspberrypi3-poky-linux-gnueabi/base-files/3.0.14-r89/image/etc/fstab
}
然而，我的/ etc/FS標籤是這樣的：
# stock fstab - you probably want to override this with a machine specific one
/dev/root / auto defaults 1 1
proc /proc proc defaults 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0
tmpfs /run tmpfs
mode=0755,nodev,nosuid,strictatime 0 0
tmpfs /var/volatile tmpfs defaults 0 0
# uncomment this if your device has a SD/MMC/Transflash slot
#/dev/mmcblk0p1 /media/card auto defaults,sync,noauto 0 0
正如你所看到的，它完全跳過元養路/ etc/fstab文件，只是寫了一個股票。