> Q1. On HP c8000 the built-in serial ports A and B are useless for > Linux installation. A PCI serial card with a PC compatible UART must > be used. > > Q2. After installation, serial ports A and B are still unusable with > Linux or they become available? Both ports will work, but they have non-standard names. You need to pass "console=ttyB0" to see the boot messages. > Q3. Is it possible to install Linux and boot from an IDE/PATA disk or > any IDE/PATA disk will be available only as "data disk" (no boot; boot > works only on SCSI disks)? I have installed mine from an IDE CD to SCSI disks, no idea if booting from IDE disks works. > Q3. I have found that c8000 "bios" has an x86 emulator capable to > detect and initialise PCI and AGP "x86 PC" cards with x86 coded > VGA-BIOS. It is correct? Yes, you can use standard AGP cards. I have not done it myself, but a colleague did. > Q4. Recent kernel and X11 versions have built-in hardware support for > OpenGL for the models where the manifacture has released the technical > specs. Why on Linux-hppa the hardware acceleration is not supported? Probably because noone did it. > Q5. After the installation, the built-in Ethernet interface will > becomes available or I need to install a second PCI network card? Works fine, e1000 driver. > Q6. Recent kernel versions have built-in Comedi data acquisition > drivers built-in. If I will install a compatible DAQ card in a PCI > slot, it will works? None idea, but if not it's probably just a bug. > Q7. Someone has tried any hard-real-time-patched linux kernel on > pa-risc machines (like RT-PREEMPT or RTAI) or other tricks to reduce > kernel latency (like forced cpu assignement to a specific process)? I did not. The machine is slow enough that I'm happy for every throughput I get without this ;) Greetings, Eike
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