on 13:54 Tue 01 Mar, Kousik Maiti (kousiks...@gmail.com) wrote:
> I get the following error when try to boot one lenovo 3000 N1000 laptop:-
>
> When trying to boot from hard disk:-
> Error 21: Selected disk does not exist...
>
> When booting from live cd. This is the output from dmesg.
> ...
> ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
> ata1.00: failed command: READ DMA
> ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
> res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
> ata1.00: status: { DRDY }
> ata1: link is slow to respond, please be patient (ready=0)
> ata1: device not ready (errno=-16), forcing hardreset
> ata1: soft resetting link
> ata1.00: configured for UDMA/100
> ata1.00: device reported invalid CHS sector 0
> ata1: EH complete
> ata1.00: limiting speed to UDMA/66:PIO4
> ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
> ata1.00: failed command: READ DMA
> ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
> res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
<...>
Sounds like a bad disk.
If you're /very/ lucky, the problem is sticktion -- high spin-up
resistance due to old / congealed bearing grease. You can usually hear
the drive servos spinning up, resetting, then spinning up again if this
is the case (the drive is trying to get up to speed, fails, resets,
tries again...).
You can sometimes "liberate" the drive by holding the unit horizontally
and spinning it around the disk spindle axis (you're rotating your
wrist/hand rapidly). Warming the disk slightly (no more than warm room
temperature -- 80-90F (about 26-32 Celcius) may help if this doesn't
work initially.
Try this, then boot the drive (or boot from a rescue disk).
> Is it the problem with Disk? I have tried with different kernel parameter
> like:- noapic , irqpool ,libata.dma=0 .
> But not succeeded .
> And during boot from live cd noise(like droping plastic ball on floor) is
> coming.
That sounds more like a head alignment problem or head parking:
http://www.thinkwiki.org/wiki/Problem_with_hard_drive_clicking
If you can't get the drive started via the sticktion method above,
freezing the drive and attempting start-up may help (the biggest risk is
condensation if you're in a humid area).
Note that loss of all of your data is fairly probable in either event.
If you do get the drive working, have a suitably large storage device
handy and TRANSFER ALL IMPORTANT DATA to it IMMEDIATELY.
Once you've done that, bin the drive.
--
Dr. Ed Morbius, Chief Scientist / |
Robot Wrangler / Staff Psychologist | When you seek unlimited power
Krell Power Systems Unlimited | Go to Krell!
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