我无法在安装在USB上的文件系统上安装python包。它试图覆盖但不是在USB上。有人可以帮我吗？
请在下面找到详细信息。
版本：
root@LEDE:~# cat /etc/openwrt_release
DISTRIB_ID='LEDE'
DISTRIB_RELEASE='17.01.4'
DISTRIB_REVISION='r3560-79f57e422d'
DISTRIB_CODENAME='reboot'
DISTRIB_TARGET='ar71xx/generic'
DISTRIB_ARCH='mips_24kc'
DISTRIB_DESCRIPTION='LEDE Reboot 17.01.4 r3560-79f57e422d'
DISTRIB_TAINTS='no-all'
Filesytem
root@LEDE:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 2.3M 2.3M 0 100% /rom
tmpfs 61.3M 560.0K 60.8M 1% /tmp
/dev/mtdblock3 4.4M 3.8M 632.0K 86% /overlay
overlayfs:/overlay 4.4M 3.8M 632.0K 86% /
tmpfs 512.0K 0 512.0K 0% /dev
/dev/sda1 29.2G 44.0M 27.7G 0% /mnt/usb
OPKG配置
root@LEDE:~# cat /etc/opkg.conf
dest root /
dest ram /tmp
dest usb /mnt/usb
lists_dir ext /var/opkg-lists
option overlay_root /overlay
option check_signature 1
**安装Python **
root@LEDE:~# opkg install -d usb python
Installing python (2.7.14-5) to root...
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/packages/python_2.7.14-5_mips_24kc.ipk
Installing python-codecs (2.7.14-5) to root...
Collected errors:
* verify_pkg_installable: Only have 632kb available on filesystem /overlay, pkg python-codecs needs 837
* opkg_install_cmd: Cannot install package python.