First, sorry for my english.

When i start ipkg update i get error:

Downloading http://ipkg.nslu2-linux.org/feeds/op...le/Packages.gz
sh: wget: Permission denied
An error ocurred, return value: 1.
Collected errors:
ipkg_download: ERROR: Command failed with return value 127: `wget -q -P /opt/ipkg-znDmt5 http://ipkg.nslu2-linux.org/feeds/

or

flashfs save && flashfs commit && flashfs enable && reboot

error is

/sbin/flashfs: /sbin/flashfs: 20: cat: Permission denied
/sbin/flashfs: /sbin/flashfs: 73: [: Permission denied
tar: Removing leading '/' from member names
tar: /tmp/local: Unknown file type
tar: Error exit delayed from previous errors
/sbin/flashfs: /sbin/flashfs: 73: ls: Permission denied
Please help me.