On Fri, Mar 28, 2014 at 1:54 PM, Peterson, Roe (LAI)
<roe at liveblockauctions.com> wrote:
I'm trying to figure out how to access an
rx33 floppy disk on a pdp11/83 without going through the disklabel process.
It would be nice if I could write a tar archive to a floppy with my Linux system, and
extract it on the 11/83. Unfortunately, since the rx33 looks like any other MSCP disk to
unix, it doesn't seem to want to access the floppy unless a disklabel (and file
system) is present.
I'm sure there must be some way to get actual raw access to the floppy drive under
2.11bsd, but I can't seem to figure it out, and I've spent some time looking
through the ra device driver source. Frustration levels are high -:)
Anyone have any suggestions?
Thanks in advance.
Does it work if you use the raw device /dev/rra1a instead of
/dev/ra1a, assuming ra0 is the boot device and ra1 is the rx33?
In this case, it's /dev/rra8a. Here's what happens with a freshly
formatted floppy:
# dd if=/dev/zero of=/dev/rra8a bs=512
write error: read only file system
2+0 blocks in
2+0 blocks out
#