[lug] Partitioning and modem problems

[Bonnell, Doug]

I had similar modem troubles on a dual boot system.
My modem was a PNP 33Kb Best Data and the
troubles all revolved around setting the IRQ and I/O
registers.

Check your BIOS settings for PNP. Also, try using
isapnptools under Linux to see where the modem
comes up and change the settings.

Hope this helps,
Doug Bonnell

> -----Original Message-----
> From:	Mike McCallister [SMTP:mmccallister at reporters.net]
> Sent:	Sunday, June 18, 2000 8:36 PM
> To:	lug at lug.boulder.co.us
> Subject:	Re: [lug] Partitioning and modem problems
> 
> A little more info that may well point in a good direction. I 
> double-checked the COM port that Windoze says the modem is using. Device 
> Manager reports the modem is on COM5. So I booted back to Linux and tried 
> to run setserial again (BTW, it's truly wonderful that it remembers my
> last 
> command even after logging out!!), changing ttyS2 to ttyS4 to reflect the 
> "new" port. Setserial reported there was no such port (as ttyS4/COM5?).
> 
> I then rechecked /proc/ioports. I had earlier written down that 
> proc/interrupts called the device using IRQ9 as usb-uhci. Well, 
> proc/ioports notes that the usb-uhci device is using ef80-ef93. Meanwhile,
> 
> lspci says the modem is using IRQ9 and I/O ports at dfe0. So, something 
> tells me that there is either a conflict, or the modem port is not set 
> properly. Is this right?
> 
> Thanks yet again!
> 
> Mike
> 
> At 07:38 PM 6/17/00 -0600, you wrote:
> >Mike McCallister wrote:
> > >
> > > Greetings all!
> > >
> > > I was finally able to install Corel Linux last week, and am most
> thrilled
> > > to be running a fairly stable dual-boot Win98/Linux system at this
> time.
> > >
> > > There are two nagging and critical problems that I can't seem to
> figure
> > > out, though.
> > >
> > > First, I had left 10GB (of my single Western Digital 20GB drive) for
> Linux
> > > partitions. I asked the Corel install program to use and format all
> the
> > > free space on the drive. It made a 1.7GB partition for itself and a
> 125MB
> > > swap space, but left the remaining ~8.3GB alone. I can't seem to make
> any
> > > new ext2 partitions.
> > >
> > > I have Partition Magic 5.1 and it tried unsuccessfully to make new
> Linux
> > > partitions (ideally, I'd like to have one large /usr partition to
> store
> > > apps on and one data partition for docs, etc.). I also tried running
> Linux
> > > FDisk from the Corel Console, but it says there's no space left when I
> ask
> > > it to create a new partition! Here is how Linux FDisk reports the
> partition
> > > table (PM reports slightly different numbers):
> > >
> > > hda1: Starts on Cyl 1, Ends on 374. Blocks: 3004125+. ID: b.
> Win95/FAT32
> > > (the Windows C: drive)
> > > hda2: 1678-2482, Blocks: 6466162+. ID: f. Win95 Extended (LBA) PM
> created
> > > this one
> > > hda3: (Boot partition) 375-598. Blocks: 1799280. ID: 83 Linux Native
> (this
> > > is where Corel's root is)
> > > hda4: 599-614. Blocks: 128520. ID: 82. Linux Swap (created by Corel)
> > > hda5: (my Windows D: partition in the DOS extended part). 1678-2431.
> > > Blocks: 6056473+. ID: b. Win95/FAT32
> > > hda6: (Windows E:, FAT16). 2432-2482. Blocks: 409626. ID: 6. DOS 
> > 16-bit >=32MB.
> > >
> > > When FDisk verifies the partition table, it reports 17077281
> unallocated
> > > sectors. Physically these sectors are located between hda4 and the DOS
> > > extended partition (hda2/hda5). Is this my problem?? BTW, I also tried
> > > installing GNU Parted, but I'm missing some dependencies.
> > >
> > > The other problem is getting the internal modem to work. This is a
> brand
> > > new Dell system. When I ordered it about three months ago, I confirmed
> with
> > > the guy that this was a hardware-based modem, and that it would work
> with
> > > Linux. I've since double-checked with the Dell website and they also
> assure
> > > me that my modem will work with Linux. I also downloaded a Red Hat
> modem
> > > driver (yes, I recognize that the driver may not work with the
> Debian-based
> > > Corel distro). Meanwhile the Windows Device Manager reports that the
> modem
> > > is a USRobotics 56K Voice PCI (and I know that PCI modems can be
> > > problematic). The Dell spec sheet calls it a 3Com PCI Telephony
> modem--now
> > > that I look at it again, this is also a bad sign. The bottom line is
> that
> > > every time KPPD queries the modem, "Sorry, modem is busy" is the
> reply.
> >
> >On the pci modem side, I have one that works great. The problem is
> >usually that the serial port you have assigned to it doesn't have the
> >correct irq assigned as well, which is where setserial helps.
> >
> >My modem is being set to irq 17, and so I have this line in rc.local to
> >match this irq to the serial port:
> >/bin/setserial -v /dev/ttyS2 uart 16550A port 0xafe0 irq 17 spd_normal
> >skip_test
> >
> >A few things you can do to find what your modem wants are in /proc/.
> >View /proc/ioports, and /proc/interrupts
> >
> >The remaining info can be found with lspci or lspci -v. If you don't
> >have this program, check http://las.978.org
> >
> > >
> > > TIA for any ideas.
> > >
> > > Mike McCallister
> > >
> > > _______________________________________________
> > > Web Page:  http://lug.boulder.co.us
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> >
> >_______________________________________________
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> 
> 
> Mike McCallister			4325 Comanche Drive, #3
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> 
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