- Roundtable - muug.ca

RE: stuck in tar
by Brock Wolfe 11 Jul '02

11 Jul '02

Well after more digging found that the files not included in tar archive were tied to hard links. Displayed by find command: find . -type f \! -links 1 -prinff "%i %n %p\n" | sort -n Now I need a solution to cloning a partition that clones hard links correctly. - tried drivecopy ( died on CRC error ) - dd incorrectly writes one less sector than read on partions with odd numbered sectors Brock Wolfe ___________________________________________________________________ "Obstacles are those frightful things you see when you take your eyes off your goal." --- Henry Ford ___________________________________________________________________

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stuck in tar
by Brock Wolfe 11 Jul '02

11 Jul '02

After cloning a hard disk I discovvered missing files on the target hard drive. After looking around it seems that tar did not include files from multiple locations on the source hard drive. In a specific case it failed to include 6 files from the /sbin directory. The tar command used (login as root) on the source disk ( RH 7.1, ext2 ) was : tar cvplf /var/tmp/root.tar / Repeating this exercise on a (RH 6.2 ext2) box did not duplicate the problem of missing 6 files. Repeating the following command on the orginal source disk (RH7.1 ext2) reproduced the problem of missing 6 files.. tar cvplf /var/tmp/sbin.tar /sbin I would just move these 6 files over by other means but there are too many files in other partitions missing to make this practical. Any ideas on the source of the problem? Brock Wolfe ___________________________________________________________________ "Obstacles are those frightful things you see when you take your eyes off your goal." --- Henry Ford ___________________________________________________________________

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Canadian Linux User Exchange reorganization
by bill traynor 10 Jul '02

10 Jul '02

Announcement and formal Invitation to discussions: On Tuesday, July 9, 2002 discussion will begin regarding the definition, organization and relaunch of the Canadian Linux Users Exchange (CLUE). Discussions will take place on the admin(a)linux.ca mailing list exclusively. Please see http://www.linux.ca/lists/ to subscribe. What CLUE is, What CLUE does, Why CLUE exists will be discussed. Thanks Bill Traynor

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(no subject)
by Nguyen, Tien 09 Jul '02

09 Jul '02

hi gurus, looking at a unix system, x display. is it possible to takeover control of the mouse cursor on a system level? ie. instead of having to move the mouse to move the cursor, is it possible write a program which moves the cursor automatically ? and that movement is not restricted to having the cursor inside its own window? i am sure there's got to be a low level function call to move the mouse in response to mouse-device movement. just not sure if it's accessable to programmer. any help is greately appreciated regards tien

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Canadian Linux Users Exchange reorganization discussions to begin
by bill traynor 09 Jul '02

09 Jul '02

Announcement and formal Invitation to discussions: On Tuesday, July 9, 2002 discussion will begin regarding the definition, organization and relaunch of the Canadian Linux Users Exchange (CLUE). Discussions will take place on the admin(a)linux.ca mailing list exclusively. Please see http://www.linux.ca/lists/ to subscribe. What CLUE is, What CLUE does, Why CLUE exists will be discussed. Thanks Bill Traynor

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Re: [RndTbl] SCSI emulation returns... burner works
by gedetil＠cs.umanitoba.ca 08 Jul '02

08 Jul '02

According to millward: > In grub.conf I added hdc=ide-scsi > and Red Hat automatically updated fstab during boot. > cdrecord -scanbus showed a device at 0,0,0 > I had prepared a file in /usr/LTSP using > mkisofs -r -J -o /usr/LTSP/ltsp.iso /usr/LTSP > ( got this from an English Linux magazine. > I can never understand man documents ) > So I tried to burn a CD using > cdrecord -v dev=0,0,0 speed=4 /usr/LTSP/ltsp.iso > and it looked good. I booted into ms windows and > the CD is readable under DOS too. > Thanks for all the advice. > I would never have figured this out on my own. > Strange that in 7.2, grub didn't need the statement > hdc=ide-scsi, but I quess things change all the time. > Thanks again! Actually, grub itself doesn't need any of that, it simply passes it on to the Linux kernel. :) But the kernel would have needed that all along. I suspect it was getting it from someplace else before your 7.3 upgrade. Since you seemed to have an appropriate append statement in /etc/lilo.conf, I suspect you had been using LILO previously, and just switched to grub in this latest upgrade. Since grub is the default selection, it's easy to do that without even realising it. -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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SCSI emulation returns... burner works
by millward 08 Jul '02

08 Jul '02

In grub.conf I added hdc=ide-scsi and Red Hat automatically updated fstab during boot. cdrecord -scanbus showed a device at 0,0,0 I had prepared a file in /usr/LTSP using mkisofs -r -J -o /usr/LTSP/ltsp.iso /usr/LTSP ( got this from an English Linux magazine. I can never understand man documents ) So I tried to burn a CD using cdrecord -v dev=0,0,0 speed=4 /usr/LTSP/ltsp.iso and it looked good. I booted into ms windows and the CD is readable under DOS too. Thanks for all the advice. I would never have figured this out on my own. Strange that in 7.2, grub didn't need the statement hdc=ide-scsi, but I quess things change all the time. Thanks again!

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Re: [RndTbl] lost SCSI emulation - burner no work
by gedetil＠cs.umanitoba.ca 08 Jul '02

08 Jul '02

According to millward: > I upgraded from Red Hat 7.2 to 7.3 and lost my SCSI emulation, > so now cdrecord -scanbus can't find any SCSI devices and > I can't use my burner. > fstab has not changed from 7.2 > /etc/rc.d/rc.local has > /sbin/modprobe ide-scsi > /sbin/modprobe sg This should not even be required anymore, but it can't hurt. In any case, if this is the only thing you've got in there to load the drivers, then it's not enough, since at the point rc.local is run, your IDE drives have already been allocated to the IDE driver, so ide-scsi will just ignore them. > I've looked, and there is no ide-scsi in sbin No, it's a kernel module, and would be here... /lib/modules/`uname -r`/scsi/ide-scsi.o > In /etc/modules.conf I've got > append="hdc=ide-scsi" I hope you meant /etc/lilo.conf here... But are you still using LILO to boot your new Linux version, or have you switched to grub? In that case, you'd need to do the equivalent thing on the "kernel" line in /boot/grub/grub.conf, e.g. something like... kernel /boot/vmlinuz-2.4.18-5 ro root=/dev/hda2 hdc=ide-scsi (Your kernel version and root device may vary.) > I've done > chmod 666 /dev/scd0 > chmod 666 /dev/scd1 ( This is just a home machine so > don't have to worry about security) > The burner is the secondary master in the BIOS so hdc looks OK. > Does this mean I'll have to do a dreaded "kernel compilation"? > I've installed the 2.4.18-3 kernel source in /usr/src/ just in case, > but I'm not excited about compiling kernels. Kernel recompilations are rarely ever needed anymore with Red Hat Linux, since most drivers are set up as loadable modules. Don't recompile your kernel unless you really know what you're doing and really need some feature that's not otherwise available, otherwise you may just break other things that are working fine as is. > Is there anything else I can do to get back my scsi emulation > without compiling the kernel ? Absolutely. Try the above, and if that still doesn't work, there may be another approach to loading the ide-scsi driver which will work (similar to the way Red Hat pre-loads other SCSI drivers via ramdisk). -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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lost SCSI emulation - burner no work
by millward 08 Jul '02

08 Jul '02

Did a lsmod and got Module Size Used by sg 32612 0 ( unused ) ide-scsi 9312 0 scsi_mod 103904 2 [ sg ide-scsi ] Duh? What does this mean? It looks to me that I already have SCSI emulation but its not working the way it should for the burner. The burner is the secondary master. For cdrecord dev=0,1,0 used to work before the upgrade. cdrecord -scanbus finds nothing. cat /proc/scsi/scsi attached devices=none Any information would be most appreciated.

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lost SCSI emulation - burner no work
by millward 07 Jul '02

07 Jul '02

I upgraded from Red Hat 7.2 to 7.3 and lost my SCSI emulation, so now cdrecord -scanbus can't find any SCSI devices and I can't use my burner. fstab has not changed from 7.2 /etc/rc.d/rc.local has /sbin/modprobe ide-scsi /sbin/modprobe sg I've looked, and there is no ide-scsi in sbin In /etc/modules.conf I've got append="hdc=ide-scsi" I've done chmod 666 /dev/scd0 chmod 666 /dev/scd1 ( This is just a home machine so don't have to worry about security) The burner is the secondary master in the BIOS so hdc looks OK. Does this mean I'll have to do a dreaded "kernel compilation"? I've installed the 2.4.18-3 kernel source in /usr/src/ just in case, but I'm not excited about compiling kernels. Is there anything else I can do to get back my scsi emulation without compiling the kernel ?

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