On 2008-10-20, Uwe Dippel <[EMAIL PROTECTED]> wrote: > [I read all postings in the archive AFAIK] > > Just started with CF on embedded hardware advertised to run OpenBSD; > ARInfoTek. It does run OpenBSD very well! > Now I want the embedded system to run off CF; the board has a CF socket > to be wd0. > 4.2 runs out of the box, but with very slow access of files. The CF is > reasonably fast, though, with ~6MB at 'dd'. But once it has to access > files for r/w, it gets very slow. > I found some postings that 4.3 would be better, but the install of 4.3 > here mainly -stalled- and took a good hour, from a local ftp-site. > locate.updatedb is incredibly fast, while some file extraction takes ages. > It looks like a large, single, file copies very fast, similar to 'dd'. > But opening a file for r/w seems to take ages. Something like > tar -C /tmp -xzphf etc43.tgz > takes a minute, easily. And etc43.tgz is only 1.2MB. > Copying of this file is quick: > $ date && cp etc43.tgz demo && date > Mon Oct 20 11:29:15 SGT 2008 > Mon Oct 20 11:29:16 SGT 2008
How are you doing the install? If it's from a running system rather than the installer, you might want to "mount -uoasync /" (and /usr if it's on a separate filesystem) to avoid rewriting the directories quite so many times. Note that erasing/rewriting CF is very slow; when even one bit moves from 0 to 1 the whole flash block must be erased and copied to another one.
