TiVo Community Forums Archives - Followed Hinsdale's guide religiously, still get input/output error.

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Followed Hinsdale's guide religiously, still get input/output error.
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Posted by: bishopofyork

I’m trying to upgrade my Philips DSR6000 DirecTivo unit by replacing the failing factory 40gb with a new 120gb drive. I setup everything as per the instructions in Hinsdale's guide.

MY SETUP:

hda Primary Master - 20gb windows drive (fat16)
hdb Primary Slave - 120gb new drive
hdc Secondary Master - 40gb factory drive
hdd Secondary Slave - cdrom

The drives are recognized by the bios and display the correct size; Everything looks good until I get to step #7 where I type in "mount /dev/hda1 /mnt/dos"
It returns "mount: you must specify the filesystem type"
Like the noob I am I proceed to the next step and enter
"mfsbackup -6so /mnt/dos/tivo.bak /dev/hdc"
It always returns:
"/dev/hdc10: Success"
"mfs_load_volume_header: mfsvol_read_data: Input/output error"
"mfsbackup: Backup failed to startup. Make sure you specified the right devices, and that the drives are not locked."

I searched around on the forum and saw that other people had the same problem but I never found a workable solution. I tried to locate another source for the tivo.bak file to no avail, and I've tried just about every configuration I could think of to make mfsbackup work properly. Every time I get the same two error messages.

I thought that these problems might be caused because my old drive was failing, (could play programs, but after several hours of recording the tivo unit would restart) but the error code is returned so quickly that I don't think it even tried to read the drive.

Does any one know how
A) to solve this problem?
B) Backup my tivo image by another method
C) locate a tivo image by another source

Now that my family is thoroughly disgusted with me, any help at all would be appreciated.
Thanks!

Posted by: Robert S

You won't get anywhere until you can get your C: drive to mount (mount says nothing when it succeeds). Read the boot printout (do dmesg | grep hd if it goes past too fast). You'll see the partition list for hda printed. If there are more partitions than hda1 listed, try those too.

However, that does seem to be separate from the problem reading your A drive. If you still fail to get a backup with the C: drive mounted, you may have to use dd to clone the disk (it's in Hinsdale):

dd if=/dev/hdb of=/dev/hdc conv=noerror,sync bs=32k

If that doesn't work, then you'll have to download an image and start from scratch.

Posted by: GBL

quote:
Originally posted by bishopofyork
I
MY SETUP:

hda Primary Master - 20gb windows drive (fat16)

There's your problem - FAT16 only supports max 2GB partitions - you have it as 20GB; how is that drive partitioned?

Posted by: bishopofyork

Thank you both for your input. The 20 gig drive has a 1.7gb fat16 partition and a 18gb fat32 partition. I've tried mounting both hda1 and hda2 but both have the same result.

I'd like to download an image and start from scratch as you said but I have no idea where to get something like that. And I'm afraid I wouldn't be able to mfsrestore the image if things aren't working properly for the mfsbackup.

If I did try and use dd to create a duplicate of the drive, would the difference in drive size be recognized? In other words, would the Tivo report the 120gb or would it think only 40gb is available?

Thanks,
Kevin

Posted by: Robert S

You should see the partition table for the C: drive printed at boot. I guess it'll be something like

hda: hda1 hda2 <hda5>

try mounting /dev/hda5

If you download a backup from someone else, then your problems making a backup are irrelevent (although you still need to be able to mount a filing system).

dd makes a perfect copy of the drive, so at that point it's the same capacity as before. Then you run mfsadd to expand it.

Posted by: bishopofyork

Success at last! I was never able to get the backup to work right, I always got the Input/output error; but after obtaining a backup from another source, mfsrestore worked like a charm. I now have 108 hours of recordable space (nice increase from 35). Thank you very much for your help with this project, I sincerely appreciate it.:up: