Linux-Hardware Digest #418, Volume #14 Thu, 1 Mar 01 02:13:08 EST
Contents:
Re: Linux partitioning question ("Cjv")
Re: Linux partitioning question ("Cjv")
yet another ATA100 question: DFI motherboard (Jason Stratos Papadopoulos)
Does this newsgroup have a FAQ list or webpage? (summerland)
Re: IRQ Line Assign ("Ajit Sodhi")
Re: Linux partitioning question (Tim Moore)
Re: Need LOTS of disks: Promise ATA RAID?? (Michael Meissner)
Re: Promise ultra100 hdd controller driver (mike)
Re: Linksys LNE100TX ver 4.0 SuSE 7.1 Probs (Gregory Davis)
Re: USB Harddrives? (Frank Miller)
Re: Linux partitioning question ("Cjv")
Re: PIII motherboards ("Robert M. Taylor")
SCSI and removable drives ("clark")
Re: Need LOTS of disks: Promise ATA RAID?? (alexd)
Re: Best RAID controller for Linux ([EMAIL PROTECTED])
Re: DLink DFE-530TX+ NIC OK with Linux ? ("David Upham")
----------------------------------------------------------------------------
From: "Cjv" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.misc
Subject: Re: Linux partitioning question
Date: Wed, 28 Feb 2001 17:44:32 -0800
"Tim Moore" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> > > place for /tmp to physically be located. Both /tmp and /usr/tmp
> > > should be symlinks to /var/tmp.
> > >
> > How would I symlink /tmp and /usr/tmp to /var/tmp when they seem to
be
> > created automatically when I do the install?? (Im a newbie)
>
> # go to single user mode
> init 1
>
> # move anything you want to save to /var/tmp
> cd /tmp
> cp -av . /var/tmp
> cd /usr/tmp
> cp -av . /var/tmp
>
> # remove the old directories
> rm -rvf /tmp /usr/tmp
>
> # make new links
> cd /
> ln -s /var/tmp
> cd /usr
> ln -s /var/tmp
>
> # sanity check
> ls -l / | grep tmp
> ls -l /usr | grep tmp
>
> # reboot
> init 6
>
> --
> timothymoore
> bigfoot
> com
Forgive my ignorance, please, but you lost me a couple of times here,
and I'd appreciate it if you help me understand a few
things here. Thanks...
>cp -av . /var/tmp # Are you using the '.' as a wildcard? Im wondering why
not an '*'
> cd /
> ln -s /var/tmp # I thought that a symbolic link had to be named. If it
doesnt, then how do programs (for example) that
normally would write to the /tmp directory be able to find it?
As you can see , I dont have any Unix background, and Im just trying to
learn about things (like this) that I havent come across
in any of the things I've been reading.
Thanks, Chris
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From: "Cjv" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.misc
Subject: Re: Linux partitioning question
Date: Wed, 28 Feb 2001 17:52:12 -0800
> >Floyd, If I were to do a fresh install then, how many original
> >partitions do you suggest I create? Then how would I use
> >symlinks (as you describe)? Would this approach be harder to
> >restore if one of the partitions became unstable?
>
> It is very difficult for me to suggest what would be best for
> you! It might be that for you, one big partition actually is
> the best. Certainly if you want to learn "proper" (whatever
> that is) UNIX systems administration you will want a number of
> "unnecessary" partitions. You might want two or more root
> partitions, each with different distributions on them, as an
> example.
>
> Personally, I would _at least_ want a separate /, /boot, /var
> and some number of other miscellaneous partitions that I usually
> mount on /u1, /u2, /u3, etc. (Note there is no separate /usr
> partition listed, though usually I do like a separate /usr
> partition too. I also like a separate /usr/local.) I almost
> always make /home a symlink to a directory on a /u* partition.
> (I also like to have at least 2 swap partitions, each on a
> different disk...)
>
> If you have a backup system that is restricted in size, it is
> very handy to limit partitions such as /home to some size that
> allows the entire partition to fit on one tape.
>
> Symlinks are handy when you discover, six months after you did
> an install, that your 500Mb /usr partition just isn't large
> enough. There is no need to re-partition the disk in order to
> have more room to add new software. If the disk itself is too
> small, just add another disk. But whether another disk is added
> or whether all the extra space on the existing disk is in the
> wrong partition makes little difference. The point is you can
> use symlinks rather than go through the pain of re-partitioning
> the disk.
Actually Ive done about 10 installations so far, and Im just trying to
discover new options, so Im more interested in what might be 'right for me'
down the road, or in certain circumstances. I think Im mainly interested
because I dont fully understand how to backup/restore , and so last time I
restored my entire /etc directory over the newly installed /etc directory
and was lucky enough to remember my old passwords. I had to reconfiggure
everything, basically I screwed the job up.
So, I appreciate the information as Im sure it will help me later on. Thanks
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------------------------------
From: Jason Stratos Papadopoulos <[EMAIL PROTECTED]>
Subject: yet another ATA100 question: DFI motherboard
Date: 1 Mar 2001 01:52:01 GMT
Hello. I have a machine with a DFI AC64-EC motherboard that supports
ATA100 natively (i.e. there's no separate UDMA slot), along with an IBM
hard drive and the proper cable. How can I get linux to give me ATA100
support?
I've tried kernels 2.2.14-2.2.18 with the DMA patch; the motherboard
apparently uses a VIA VT862Cxxx chipset, and I can't get any UDMA at all
even with support for this chipset compiled in.
Can somebody help?
jasonp
------------------------------
From: summerland <[EMAIL PROTECTED]>
Subject: Does this newsgroup have a FAQ list or webpage?
Date: Wed, 28 Feb 2001 20:53:03 -0800
Well I think the subject line pretty much says it all,I can imagine the
regulars here get just a tad bit tired hearing lame
questions asked a billion times a month<g>.......So do you have a FAQ
list?Many thanks in advance for all (non smartass replies)thanks folks.
------------------------------
From: "Ajit Sodhi" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.development.system,alt.os.linux,comp.os.linux.embedded,linux.redhat.devel,linux.dev.kernel
Subject: Re: IRQ Line Assign
Date: Thu, 01 Mar 2001 02:34:08 GMT
Hi Michael,
Thanks for posting your very valuable remarks. Your support is really
helping me a lot. And it seems that you already know all my problems. Yes,
the device I'm working on is intel 21554 (not 21555). Since you are the only
expert in this matter I know, please share your expertise on the following
issues.
1. I'm kinda confuse between CSR (configuration space register) and
configuration register. My guess is that config. register are based upon the
PCI spec and CSR is for the device spec.
2. There are 3 base address values in the config register. You can check in
the HW ref. man (pg 20-5). I was first trying to access CSR from the "Prim
CSR and Mem 0 Bar add" value. Then I followed your advise for using IO
registers instead ioremap. So I used the Prim CSR IO Bar add values for
accessing the CSRs. It works fine (Thanks - YES I'm getting intrrupt, but no
0xffff ). My confusion is why the ioremap did'nt work for the "Prim CSR and
Mem 0 Bar add val".
3. Now my questions is that am I on the right track for accessing the memory
by using the 3rd add val in the config. registers (Downstream Mem 1 BAR).
And I still can't seem to access this mem space. (all address in the range
give me 0xff - even after I write and read right back) In this case I've to
still use ioremap function.
I hope I explained my probs clearly.
Thank you so much
Ajit
"Michael Mueller" <[EMAIL PROTECTED]> wrote in message
news:97hsc7$f6r$[EMAIL PROTECTED]...
> Hi Ajit,
>
> you wrote:
> > > You should not need any driver for a PCI-PCI bridge. Both the PCI-BIOS
> > > and Linux do detect these bridges and look behind them - they are
> > > transparent.
> >
> > Then how do I access the device? FYI, I was planning to write the simple
> > driver which maps the device memory location to the kernel virtual mem
by
> > using ioremap func). And then in the interrupt handler check the the
> > doorbell register value to see any change in status. I'm not sure if
this is
> > the right approach (as I'm new to device driver devl.) Please guide me
or
> > provide some pointers.
>
> For first I did wondering why you want to fiddle with the bridge itself
> and do not access just the devices behind it directly. But looking at
> the manual for the Intel 21555 I see there is a big difference beetween
> a transparent PCI-PCI bridge I assumed and a non-transparent PCI-PCI
> bridge as the mentioned device. For linux it should look like a single
> device attached to the PCI bus. So indeed for such a bridge you need to
> write a device driver. However what this device driver should do clearly
> depends upon what device the combination of this bridge and the PCI bus
> behind does implement.
>
> > All I'm trying is to read the doorbell register _ dont' have very clear
idea
> > how it works. But every time I receive the interrupt I get 0xffff value.
And
> > it do receive the interrupt very frequently. Do I have to check if the
> > interrupt is for my device or kernel takes care of it?
>
> What chip you are reffering to? If you read a value of 0xffff every time
> this is usally a hint there is no device where you read or it simply
> does not react.
>
> On the intel chip mentioned above you would access the status of the
> IRQs by reading one of two registers (Primary Clear/Set IRQ) which can
> be accessed either by memory or I/O. A register named the "doorbell
> register" is not existent. The doorbell consists of a set of eight
> registers there Clear IRQ, Set IRQ, Clear IRQ mask and Set IRQ mask for
> each of the two PCI busses.
>
> If you can access the register of interest by I/O I would recoment to do
> it this way for first since you do not have to fiddle with the various
> address spaces then.
>
>
> Malware
>
> Fup2 to comp.os.linux.development.system
------------------------------
From: Tim Moore <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.misc
Subject: Re: Linux partitioning question
Date: Thu, 01 Mar 2001 03:46:07 GMT
> >cp -av . /var/tmp # Are you using the '.' as a wildcard? Im wondering why
> not an '*'
"copy preserving all file attributes and showing all files as they're
copied, everything in the current directory (.) to /var/tmp"
'cp * /var/tmp' would miss links, files starting with '.', sockets,
fifo's and other special file types. The -a option makes an exact copy
including subdirectories, permissions, dates & times.
> > ln -s /var/tmp # I thought that a symbolic link had to be named. If it
> doesnt, then how do programs (for example) that
> normally would write to the /tmp directory be able to find it?
"create a soft link (-s) to A (/var/tmp) named B but if B isn't given,
use the last part of A (tmp) as the name"
> ls -l link
ls: link: No such file or directory
> ln -s /var/link
> ls -l link
lrwxrwxrwx 1 tim tim 9 Feb 28 19:30 link ->
/var/link
> rm link
> ln -s /var/link link
> ls -l link
lrwxrwxrwx 1 tim tim 9 Feb 28 19:31 link ->
/var/link
> As you can see , I dont have any Unix background, and Im just trying to
> learn about things (like this) that I havent come across
> in any of the things I've been reading.
That's why I gave a step by step way do to it. We all started from
zero.
--
timothymoore
bigfoot
com
------------------------------
Crossposted-To: uk.comp.os.linux
Subject: Re: Need LOTS of disks: Promise ATA RAID??
From: Michael Meissner <[EMAIL PROTECTED]>
Date: 28 Feb 2001 22:52:28 -0500
[EMAIL PROTECTED] (Jonathan Buzzard) writes:
> > EVERYTHING HAS IT'S PLACE. Understand your requirements and deploy the
> > right technology. Use the right tool. Using IDE for mission critical
> > storage requirments is like bringing a knife to a gun fight. Using
> > Ultra160MB/s with spanky-fast 10K drives with all kinds of redundacy for
> > something non-critical reminds be of that credit card commercial where they
> > are trying to get the cat out of the tree "It's a Calico, we need more air
> > support!". What about a ladder? yeah, IDE's your fit.
>
> What's wrong with the 15k drives then.
Nothing, and they will supplant the current 10k drives shortly, just like the
10k's supplanted the 7.2k's. I suspect the manufacturers are still reamping up
their production lines, and only the big boys can get them right now.
--
Michael Meissner, Red Hat, Inc. (GCC group)
PMB 198, 174 Littleton Road #3, Westford, Massachusetts 01886, USA
Work: [EMAIL PROTECTED] phone: +1 978-486-9304
Non-work: [EMAIL PROTECTED] fax: +1 978-692-4482
------------------------------
From: mike <[EMAIL PROTECTED]>
Crossposted-To: linux.redhat.install,alt.os.linux.suse
Subject: Re: Promise ultra100 hdd controller driver
Date: Thu, 01 Mar 2001 04:18:50 GMT
Thanks everyone, both great suggestions. Question I have is would a
boot disk for 7.0 work for 7.1?
Mike
Baddel Zcwen wrote:
>
> Mike McCann wrote:
>
> > You could check previous messages like the one below. Otherwise if you
> > had and had some additional information like - SuSE recognized it on the
> > initial
> > install, however didn't recognize it on the reboot. And I tried the
> > methods
> > reported at the w3 below. Then does any one have any suggestions.
>
> Have you tried the boot disk images located at
> http://sdb.suse.de/sdb/en/html/a7vpromise.html ?
>
> > Mike
> > [email protected]
>
> Regards,
> Baddel
------------------------------
From: Gregory Davis <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.suse
Subject: Re: Linksys LNE100TX ver 4.0 SuSE 7.1 Probs
Date: Wed, 28 Feb 2001 23:35:26 -0500
If you have kernel 2.4.1, it has the correct version tulip driver already.
I dont know if the suse kernel is the exact same as the real linux kernel
from kernel.org.
Greg
Mike McCann wrote:
> Hi
>
> Can't get the known fixes for SuSE 6.3 or 7.0 to get my 7.1 working.
> Has anyone got any solutions.
>
> I don't think it is a IRQ problem because part of the problem when I
> tried to compile the updates was there was an error compiling
> pci-scan.o. So, not being an old hand at this upgrading process I do
> have a couple of questions.
>
> there are some commands like
>
> gcc -DMODULE -D_KERNEL_
> -l/usr/src/linux/net/inet
> -Wall -Wstrict-prototypes -O6 -c tulip.c
> '[ -f /usr/include/linux/modversion.h]
> && echo -DMODVERSIONS
>
> Do I enter the command verbatum or are there something I should
> substitute for -DMODULE or /usr/src/linux/net/inet ?
>
> Thanks
> Mike
>
>
------------------------------
From: Frank Miller <[EMAIL PROTECTED]>
Subject: Re: USB Harddrives?
Date: Thu, 01 Mar 2001 04:38:57 GMT
John Hong wrote:
>
> [EMAIL PROTECTED] (Kenneth Crudup) writes:
>
> >In article <[EMAIL PROTECTED]>,
> >[EMAIL PROTECTED] says:
>
> >>A better question would be, "Who on Earth would be STUPID enough to
> >>think that putting a hard drive on USB is a good idea?"
>
> >Well, FWIW, my USB Zip drive (essentially a hard disk) works so well under
> >Linux I ditched my old SCSI one.
>
> >It's not about "speed" as much as "portability", I'll bet. Some of those
> >USB HDs are about the size of a hardcover book- great for when you need
> >to carry a few GB between places.
>
> Plus, what I've purchased was just a USB Hard drive enclosure.
> Meaning that I can stick any 3.5" IDE hard drive in there and use it like
> a removable media drive. When its full, I'll just stick in another hard
> drive. Nice little portable backup device to offload unnecessary files
> (ie. MP3's).
Where did you find this USB enclosure? Who made it?
TIA
------------------------------
From: "Cjv" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.misc
Subject: Re: Linux partitioning question
Date: Wed, 28 Feb 2001 20:56:40 -0800
Thank you very much, occasionally RTFM isnt enough, and its nice when
somebody takes the time to explain.
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------------------------------
From: "Robert M. Taylor" <[EMAIL PROTECTED]>
Subject: Re: PIII motherboards
Date: Thu, 01 Mar 2001 04:55:08 GMT
Chris,
chose a distribution, go to their website and check their list of
supported hardware. Try SuSE <http://www.suse.com. My disribution of
choice. Note that from time to time the distros end up being discounted
by BestBuy snd CompUSA. If you get the weekend paper, look in there for
what's on sale. This edition of SuSE is a thre CD set for $15 with a
rebate. I don't go to computer shows any more unless I need parts these
days. Linux is too easy to get now.
Chris Harris wrote:
> =
> I am in the process of choosing a new PIII motherboard for a rebuild of=
my
> system.
> =
> What are the pitfalls to avoid regarding chipsets, BIOS, onboard driver=
s
> etc.. to ensure best compatability with linux?
> =
> Has anybody had and really good, or really bad, experiences with partic=
ular
> manufacturers.
> =
> In short what do people think is the best motherboard to go for at the
> moment, up to say $200 US or =A3150 GB..
> =
> Chris
-- =
Bob Taylor <[EMAIL PROTECTED]>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D
Welcome to SuSE Linux 7.0 (i686) - Kernel 2.2.16 (tty1)
Osprey login:
------------------------------
From: "clark" <[EMAIL PROTECTED]>
Subject: SCSI and removable drives
Date: Wed, 28 Feb 2001 22:08:05 -0700
I have a a scsi zip drive, orb drive and toshiba dvd-ram attached to an
Adaptec aic7xxx based controler. The zip will only work with the disk
that is in the drive when I boot. I cannot change to a different disk,
the system will not read the disk. Both disks are formated vfat. I have
had to go and use fdisk and toggle the dos compatablilty bit and write
back to the 2nd disk. Then my data transfer rates drop to those of a
floppy drive.
The same problem exists with the orb dealing with disk swaps
and when I copy files to the orb, I get
a chmod error on each file copied.
The DVD-Ram is only seen as a cdrom. I understood that the 2.4.x kernel
would support dvd-rams. I have the wolverine 2.4.1 kernel running.
System has an AMD K6-2 533 chip with 256 mb memory.
Any one have any suggestions??
Thanks in Advance
------------------------------
From: alexd <[EMAIL PROTECTED]>
Subject: Re: Need LOTS of disks: Promise ATA RAID??
Crossposted-To: uk.comp.os.linux
Reply-To: [EMAIL PROTECTED]
Date: Thu, 01 Mar 2001 06:12:22 GMT
On 28 Feb 2001 22:52:28 -0500, Michael Meissner quite possibly could have
written:
> [EMAIL PROTECTED] (Jonathan Buzzard) writes:
> > What's wrong with the 15k drives then.
>
> Nothing, and they will supplant the current 10k drives shortly, just like
> the
> 10k's supplanted the 7.2k's. I suspect the manufacturers are still
> reamping up their production lines, and only the big boys can get them
> right now.
Or, they have plenty of 15k's, but they're holding them back so they don't
end up with masses of unsold 10k's. [Or rather, so they don't have to cut
the price of 10k's in order to sell them].
alexd
--
www.cragside.uklinux.net
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: linux.dev.raid
Subject: Re: Best RAID controller for Linux
Date: 1 Mar 2001 06:18:59 GMT
In comp.os.linux.hardware Vincent Fox <[EMAIL PROTECTED]> wrote:
: I've started using the 3Ware IDE RAID controller and been
: very impressed with it so far. Using a pair of IBM 75GXP drives
: in mirroring mode, disk reads are very fast. The mirroring
: works as advertised. I can "fail" a drive by unplugging it
: and it keeps running. Rebuilding onto the failed drive
: to return to full mirroring functionality can be done while
: the system is running. Sweet.
We are struggling to get a 3ware 6400 to work properly. Three IBM 75GXP
drives in raid5 configuration. The kernel keeps spitting out errors about
DMA buffers being low (with 512mb ram?!) and then locks up with scsi
timeouts. When it doesnt lockup, we get read speeds of 4mbyte/sec and
write speeds of 5mbyte/sec.
The drives work fine (38mbyte/sec) on the motherboard builtin IDE.
o) Tried two different 3ware 6400's (original we bought, and a replacement
that was sent)
o) Tried four different motherboards with intel and via chipsets,
athlon and pentium CPUs.
o) Tried different PCI slots.
o) Tried different video cards.
o) Pulled the ethernet NIC to rule it out.
o) Disabled everything in the motherboard BIOS (isapnp,acpiserial,parallel,
usb,etc) as well as in the kernel, to rule those out.
o) Tried kernel 2.2 and kernel 2.4 both with stock kernel 3ware drivers
and with 3ware-supplied binary drivers, redhat 6.2 and 7.0
o) Used the 3ware bios that came with the card as well as the latest bios
from 3ware support.
o) Tried with different drives, different power supplies.
o) Tried with 128m instead of 512m, and tried with different memory, to rule
out dimm and memory problems.
o) Disabled swap, to rule out VM problems.
In the end, the thing still wont work properly. We are pretty close to
giving up and sending the thing back.
Anyone know of a hardware IDE raid solution that *works*?
-Dan
(To reply in email replace blort dot invalid with anime dot net)
------------------------------
From: "David Upham" <[EMAIL PROTECTED]>
Subject: Re: DLink DFE-530TX+ NIC OK with Linux ?
Date: Thu, 1 Mar 2001 15:09:49 +0800
I am using a pair of DFE-530TX cards in with RedHat 6.2. I downloaded a
via-rhine driver from Dlink as well as another .o file that needs to be in
the same /var/modules/..../net directory. I have no problems at all. If
you want the .c files, I can e-mail them.
"Torsten Clay" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Sean wrote:
>
> > I currently have a couple of DLink DFE-530TX NICs working OK with my
> > SuSE 6.4 setup using the via-rhine driver.
> >
> > I was going to get some more of these cards but I notice that D-Link
> > only seem to have the DFE-530TX+ available now.
> >
> > Can anyone tell me if this new card works OK with Linux ? If so, what
> > driver does it use ? Is it still the via-rhine driver ?
>
> The 530TX+ uses the rtl8139 driver. However, the stock rtl8139 driver
> included with the kernel will not recognize these cards. On the
> floppy disk that comes with the 530TX+ there is a linux directory
> with a version of rtl8139.c that does work with 2.2.X kernels.
>
> If you are using a 2.4 kernel you will have to modify 8139too.c
> from the kernel sources- the d-link supplied driver will not work
> with for 2.4.x
>
> See my post in alt.os.linux.mandrake (or I can repost it here if you
> want)
>
> Torsten
------------------------------
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