partitioning CF card error

Altera_Forum · ‎06-27-2006

hi, hippo

when I partition CF card in the last step by entering "w" at the main prompt. it showns below:

"The partition table has been altered!

Calling ioctl<> to re-read partition table.

hda:unknown partition table

warning: if you have created or modified any DOS 6.x partitions please see the fdisk manual page foe additonal information.

Syncing disks."

what shall I do?

Altera_Forum · ‎06-27-2006

Those look like typical Linux warnings, except for the first bit. If you type fdisk <your dev> and then type "p", what does that show? If you were successful, you should see a listing of all partitions on your card. From this point, you should be able to format your partition(s) and get on with the flow.

Good luck!

- slacker

Altera_Forum · ‎06-28-2006

--- Quote Start ---

originally posted by slacker@Jun 28 2006, 12:20 AM

those look like typical linux warnings, except for the first bit. if you type fdisk <your dev> and then type "p", what does that show? if you were successful, you should see a listing of all partitions on your card. from this point, you should be able to format your partition(s) and get on with the flow.

good luck!

- slacker

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=16435)

--- quote end ---

--- Quote End ---

thanks!

when I fdisk CF card:

"#fdisk /dev/hda

hda:unknown partition table

device contains neither a valaid DOS partition table, or Sun,SGI or OSF disklabel

Building a new DOS disklabel. Changes will remain in memory only, until you decide to write them. After that, of coure, the previous content will not be recoverable.

"

can u help me?

thanks!

Altera_Forum · ‎06-28-2006

First a quick question:

You're trying to do this from a Linux host, right?

- Not uCLinux! While it may be possible to format a CF card, from within uCLinux, it's certainly not advisable.

Things to check:

1. Be sure that you're fdisking the correct device.

- scan the output of the 'dmesg' command to make sure that your CF card is being properly detected. You should see something like the following:

SCSI device sdg: 3978240 512-byte hdwr sectors (2037 MB)
sdg: Write Protect is off
sdg: Mode Sense: 02 00 00 00
sdg: assuming drive cache: write through
SCSI device sdg: 3978240 512-byte hdwr sectors (2037 MB)
sdg: Write Protect is off
sdg: Mode Sense: 02 00 00 00
sdg: assuming drive cache: write through

Pay attention to the name of the device as that is how you'll access it. NOTE: There is some amount of variation to the drive letter chosen, based upon boot order or when you connected your card reader.

2. Be sure that you don't have some sort of media issue with the CF card. Try formatting it from within Windows....or from a digital camera...or whatever. You just want to make sure this is successful, before trying on Linux, again.

- If successful, you should be able to "mount" the drive, on your Linux host, and copy files onto it.

Best of luck...

- slacker

Altera_Forum · ‎06-28-2006

--- Quote Start ---

originally posted by slacker@Jun 28 2006, 12:53 PM

first a quick question:

you're trying to do this from a linux host, right?

- not uclinux! while it may be possible to format a cf card, from within uclinux, it's certainly not advisable.

things to check:

1. be sure that you're fdisking the correct device.

- scan the output of the 'dmesg' command to make sure that your cf card is being properly detected. you should see something like the following:

scsi device sdg: 3978240 512-byte hdwr sectors (2037 mb) sdg: write protect is off sdg: mode sense: 02 00 00 00 sdg: assuming drive cache: write through scsi device sdg: 3978240 512-byte hdwr sectors (2037 mb) sdg: write protect is off sdg: mode sense: 02 00 00 00 sdg: assuming drive cache: write through

pay attention to the name of the device as that is how you'll access it. note: there is some amount of variation to the drive letter chosen, based upon boot order or when you connected your card reader.

2. be sure that you don't have some sort of media issue with the cf card. try formatting it from within windows....or from a digital camera...or whatever. you just want to make sure this is successful, before trying on linux, again.

- if successful, you should be able to "mount" the drive, on your linux host, and copy files onto it.

best of luck...

- slacker

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=16452)</div>

--- Quote End ---

thanks