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| Thread ID: 27792 | 2002-12-03 03:25:00 | linux redHat 5 modem not detected | Nigel Thomson (629) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 102906 | 2002-12-03 03:25:00 | system P90 16Mb Ram 540Mb harddrive pragmatic telepermit says(h56rsp-AO) board says (h56rsn-AO) i believe it is a hardware modem as the big chip(rockwell) says RCVDL56ACF/SP with ACF being for hardware modems >>Sams teach yourself Linux in 24 Years i have installed RH5 on the above machine but am unable to get the modem to respond at all i have kind of hit a brick wall i am unsure if how to configure my serial ports and the howtos assume a knowledge i don't have, what i have found is that when i run dmesg it tells me something to the effect that i have a serial driver with no serial options enabled, i don't know what this means. I also can't test my modem by typing the echo "ATDT***-****/n" >/dev/cua1(ihave tried 0-3 and got no response) the other thing is using the dmesg command i can't find any mention of ppp and according to the book I need to recompile the kernel to do this, but again i have no idea how to do this I am using redhat 5 because it is small enough to fit onto my machine all other versions i have are apparently too big RH 7.1,Mdk 8./,9 I really only want the machine to be able to do a web browsing, email etc I am trying to this on a budget of nothing and my only means of transferring data is floppy or CD and no i am not going to down load 80 slackware floppies, i don't have a CD burner so all file suggested for me to download will need to be floppy sized. >thanks for any help you can give sorry its so long but I am trying to put in all the info i can think of that will be useful |
Nigel Thomson (629) | ||
| 102907 | 2002-12-03 04:01:00 | Don't give up . My first installation was on a 386SX-20 with a 40MB disk and 6MB of RAM . (That's 40 megabytes, not gigabytes of disk) . I made floppies on a friend's machine . There's no easy way to learn . . . it's like anything . You will find the HOWTOs more understandable as you get into it . Have a browse through the links I have given in FAQ80 . Especially read the Hardware-HOWTO, and Winmodems-HOWTO, and the Getting Started manual . Modem: It's a plugin card, so we call it a winmodem (internal), not a "hardware" one . A "hardware" one is plugged into a serial port on the the back of the box . ;-) Is it ISA or PCI? Has it got jumpers to set its IO address and IRQ? dmesg will probably show that you have two serial ports . . . /dev/cua0 and /dev/cua1 . These are the ones which have DB connectors on the back . You might have a mouse on one of them . An internal modem will need to be set to not interfere with a "real" serial port . If you are using "COM1" (/dev/cua0) you would set the modem to be "COM4" (/dev/cua3 . . . see the different numbering?) . Look at the www . linmodems . org site for information on "winmodems" . If you have a BIOS option to disable the onboard serial ports, try that and see if the boot (or dmesg) shows the modem as a serial port . . That will show if it is colliding with the others . Including PPP: Compiling the kernel is not too difficult . If you have the sources and compilers -- the "development" package, cd to /usr/src/linux and type "make menuconfig" . (You'll need to be root for this) . Just work through the prompts . You can get help at each question . You will make mistakes . ;-) It doesn't matter . You can try again . When you have done the configuration, you need to do "make dep", and "make zImage", (and maybe "make modules" and "make module_install") . There's a HOWTO on Kernel, too . With 16MB, the compile will take a while . . . maybe an hour or so . You'll see lots of messages as it works . It might be a good idea to just copy the new kernel to a floppy rather than putting it to the normal boot place . "find . / -name zImage" will locate it, or you will see the path in the last few messages as it is compressed . If you cd to that directory you can do "dd if=zImage of=/dev/fd0 bs=72k" with a blank floppy in the drive will make it into a bootable floppy . It's great fun . Keep notes as you go . Don't feel terrible if you "break" it . You can reinstall it . . . which is often much quicker than trying to fix it . |
Graham L (2) | ||
| 102908 | 2002-12-03 08:35:00 | You can get "hardware" internal modems. My Red Hat box has one (although I currently use my external modem!). My quide is that if the modem has no irq/com jumpers, then its most likely a winmodem. | Dolby Digital (160) | ||
| 102909 | 2002-12-04 01:43:00 | I was keeping it simple ;-) . . . An ISA internal will probably be a "hardware equivalent" . My guide is the number of chips . :D If it's only got one or two chips, it's a winmodem . The important first step is to get the modem's "serial port" recognised and set up with a suitable address/IRQ . It might well work straight away afetr that . |
Graham L (2) | ||
| 102910 | 2002-12-05 22:51:00 | Well my modem is apparently an internal hardware one, Linmodems.org refers to it as a "real" Modem and modemsite (www.modemsite.com) also refers to it as a hardware controller thing, so my new question is Why wont linux pick it up, I have been singularly unsuccessful in tracking down this particular modem, but have found that about half the other modems (from various manufacturers) have jumper settings, how do I go about figuring out which is what etc. Thanks for anyhelp you can offer. ps what is a good price for a second hand HD ie one larger than 1 gig as I have a feeling RH 5 might be a bit unsuitable for future expansion cheers Nigel. |
Nigel Thomson (629) | ||
| 102911 | 2002-12-05 22:54:00 | Whoops I meant to say it is hardware as it has the ACF chipset rather than the HCF or HSF. | Nigel Thomson (629) | ||
| 102912 | 2002-12-06 02:25:00 | First: has it got any jumpers? If so, what are they labelled? If not, it might be an ISA pnp device . :-( There is a module called isapnp, but I don't think I've used it . . . my gear is too old for that :D . Have you got a DOS/Win machine handy you can plug it into? It might be faulty . . . that is not unknown . ;-) If it works (with AT commands), you should be able to see what its IRQ and address are with MSD or the Windows hardware thingy . Is PNP enabled in the BIOS? If not, turn it on . If it's on, turn it off . ;-) |
Graham L (2) | ||
| 102913 | 2002-12-06 05:18:00 | yes it does have jumpers the settings read as the following Com1: 2,4,6 ON IRQ3: 1 ON Com2: 1,5,6 ON IRQ4: 2 ON Com3: 2,4,7 ON IRQ5: 3 ON Com4: 1,5,7 ON IRQ7: 8 ON it appears to be set up for Com4 unfortunately i don't have a windows machine to test it in Do I need to set an IRQ and if so How? as there is only one set of pins on the Card Thanks for the help so far it has given me a few more things to try out |
Nigel Thomson (629) | ||
| 102914 | 2002-12-07 01:06:00 | I'd be inclined to connect it as COM3, assuming that you have two normally there (COM1 & COM2) . It should be smart enough to handle a "gap" in the sequence, but we''l make no assumptions . :D If you have only one "normal" COM port, make it COM2 . If you have none, make it COM1 :D . It has to have an IRQ . 5 should be OK for COM3, because Linux has tended to not use interrupts for parallel printers because of the flakey implementation by IBM (in 1981) . If You have only one (or none) COM ports, give the modem 3, or 4 . (COM1 uses 4, COM2 uses 3) . It ought to show as the Linux boots . Or on the output from dmesg (which is the same) . You should be told the IRQ and address detected . |
Graham L (2) | ||
| 102915 | 2002-12-08 02:34:00 | seriel driver version 4.13 with no seriel options enabled tty00 at 0x03f8 (irg = 4) is a 16550A tty01 at 0x02f8 (irq = 3) is a 16550A tty02 at 0x03e8 (irq = 4) is a 16550A Does this nean there is a conflict between com1 & 3 the lKernel version is 2.0.32 |
Nigel Thomson (629) | ||
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