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On Thu, 2006-03-23 at 17:25 -0500, JimD wrote: |
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> On Thu, 23 Mar 2006 14:26:20 -0700 |
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> Joseph <syscon@×××××××××.com> wrote: |
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> |
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> > Before ejecting put any CD / DVD disk IN and run: |
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> > dd if=/dev/hdc of=backup.iso or |
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> > cat /dev/hdc >backup.iso |
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> > |
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> > When finished run "eject ..." |
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> > and |
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> > hdparm /dev/hdc |
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> > |
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> > See if the parameter "using_dma" was reset. |
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> |
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> root@keelie # dd if=/dev/hdc of=backup.iso |
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> CTRL+C |
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> 37824+0 records in |
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> 37824+0 records out |
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> |
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> /tmp |
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> root@keelie # ls -l backup.iso |
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> -rw-r--r-- 1 root root 19M Mar 23 17:20 backup.iso |
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> |
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> root@keelie # hdparm /dev/hdc |
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> /dev/hdc: |
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> IO_support = 1 (32-bit) |
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> unmaskirq = 1 (on) |
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> using_dma = 1 (on) |
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> keepsettings = 0 (off) |
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> readonly = 0 (off) |
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> readahead = 256 (on) |
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> HDIO_GETGEO failed: Invalid argument |
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> |
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> DMA is still on. I don't know why I always get that "HDIO_GETGEO |
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> failed" error. |
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> |
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> Do you have another CD/DVD drive you can try? Are you using SCSI |
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> emulation? |
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> |
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> I am using kernel 2.6.15-gentoo-r7 |
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> |
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> Jim |
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|
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Did you do "eject /dev/hdc between dd and hdparm? |
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|
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dd if=/dev/hdc of=backup.iso |
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eject dev/hdc |
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hdparm /dev/hdc |
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|
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Yes, I've tried this combination on two different machines with two |
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different drives and DMA gests rest on both. |
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amd64 + BenQ DVD |
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x86 + Plexwriter |
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|
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I'm using kernel 2.6-15 |
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|
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-- |
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#Joseph |
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-- |
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