I recently was unpacking the full FreeBSD source distribution in
single-user mode (with install.sh all), and I noticed that I got a crc
error in the sys dist. But when I tried to upack the sys distribution by
itself, the gzip errors went away. I repeated this a couple of more times
with no errors. I had everything mounted async.
I wonder if this is a meta-data problem that occasionally occurs on
filesystems mounted async. Again, this error occured on a tarball, but
then went away on the next try. I didn't modify the file in any way.
Donn