Linux Partition on SD Card is "Read Only File System"

GoogleGroups
21

It looks like my laptop, perhaps in combination with my card reader,
for some reason is not the right hardware.
What I will do is try to find another laptop PC and install a Linux
distribution on the hard drive and try it again.
It will be next week though.

Regards and thanks for your help!

Mark

22

I had a similar problem on my Dell Laptops. The integrated SD card reader
wasn't SDHC compliant. I purchased a small USB/SDHC reader and now
everything works fine. The one I used is:

http://shop3.frys.com/product/5448039?site=sr:SEARCH:MAIN_RSLT_PG

Regards,

From: beagleboard@googlegroups.com
[mailto:beagleboard@googlegroups.com] On Behalf Of Mark K.
Sent: Wednesday, December 03, 2008 1:20 PM
To: Beagle Board
Subject: [beagleboard] Re: Linux Partition on SD Card is "Read Only File

System"

23

But does it have to be HC compliant when using only 1GB or 2GB SD
cards?
You write that you had a similar problem. Were you also able to write
to the FAT partition on the SD card and not to the ext3 (Linux)
partition on the SD card?

Mark

24

I was using a 4G card and from what I recall, I could partition and
formation some parts, but not others. I remember that the card seemed really
flaky at the time. I would start by using a newer card reader.

Regards,

From: beagleboard@googlegroups.com
[mailto:beagleboard@googlegroups.com] On Behalf Of Mark K.
Sent: Wednesday, December 03, 2008 10:29 PM
To: Beagle Board
Subject: [beagleboard] Re: Linux Partition on SD Card is "Read Only File

System"

But does it have to be HC compliant when using only 1GB or 2GB SD
cards?
You write that you had a similar problem. Were you also able to write
to the FAT partition on the SD card and not to the ext3 (Linux)
partition on the SD card?

Mark

> I had a similar problem on my Dell Laptops. The integrated SD card

reader

> wasn't SDHC compliant. I purchased a small USB/SDHC reader and now
> everything works fine. The one I used is:
>
> http://shop3.frys.com/product/5448039?site=sr:SEARCH:MAIN_RSLT_PG
>
> Regards,
>
>
>
>
>
> > From: beagleboard@googlegroups.com
> > [mailto:beagleboard@googlegroups.com] On Behalf Of Mark K.
> > Sent: Wednesday, December 03, 2008 1:20 PM
> > To: Beagle Board
> > Subject: [beagleboard] Re: Linux Partition on SD Card is "Read Only

File

> System"
>
> > It looks like my laptop, perhaps in combination with my card reader,
> > for some reason is not the right hardware.
> > What I will do is try to find another laptop PC and install a Linux
> > distribution on the hard drive and try it again.
> > It will be next week though.
>
> > Regards and thanks for your help!- Tekst uit oorspronkelijk bericht

niet

25

Okay, thanks for the suggestion. Next week I get a laptop here and I
will install Linux on it and use it only for Beagle Board projects.
I will also look for a new card reader that is fully compatible with
Linux.

Regards,

Mark

26

I get a different result when trying to use an SDHC card in a USB SD
only reader. The partitions on the card do not show up, and the
messages coming out of the kernel look like this:
usb 3-6: reset high speed USB device using ehci_hcd and address 13

as viewed with dmesg

When using an SD card in the SD reader, and an SD or SDHC card in an
SDHC reader I do see the partitions, and the following are printed
into the kernel ring buffer (this is from a 4GB SDHC card):
sd 15:0:0:0: [sdf] 7864320 512-byte hardware sectors (4027 MB)
sd 15:0:0:0: [sdf] Write Protect is off
sd 15:0:0:0: [sdf] Mode Sense: 03 00 00 00
sd 15:0:0:0: [sdf] Assuming drive cache: write through
sd 15:0:0:0: [sdf] 7864320 512-byte hardware sectors (4027 MB)
sd 15:0:0:0: [sdf] Write Protect is off
sd 15:0:0:0: [sdf] Mode Sense: 03 00 00 00
sd 15:0:0:0: [sdf] Assuming drive cache: write through
sdf: sdf1 sdf2
again as viewed with dmesg.

Both my SD and SDHC readers are USB based and made by Targus. The SD
only version is model number: TGR-SD20. Unfortunately, the SDHC
reader does not have a model number on it, but I do remember the
packaging stating that the reader supports SDHC.

-Preston

27

Today I installed Ubuntu on a laptop PC with a new card reader.
The whole procedure worked!!!
I think that the method described by Robert Nelson in this thread
should be integrated in the LinuxBootDiskFormat wiki, because when the
partitions are automounted, they are mounted with nodev.

Thanks everybody for your help! Now I can really start playing with
my Beagle Board.

Regards,
Mark