6 Sep
2012
6 Sep
'12
7:29 p.m.
On 2012-09-06 08:48, B M<iamvirtual at gmail.com> wrote:
I managed to get RSTS-11 (circa 1974) installed on an RK05 drive for my
PDP-11/10. The M873-YA bootstrap loader does not seem to be able to boot
the disk.
I can boot the drive via a manual bootstrap routine.
I saw on a site that some bootloaders will refuse to boot a drive unless
the first byte is 240(8). On RSTS-11, the first byte is 300(8).
Any ideas why the bootstrap card is picky?
That's a way to try and protect you from booting random garbage.
On some newer PDP-11s you can disable that check if you want to.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol