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[ts-7000] Re: Problem mounting partitions on 2GB SDcard on TS-Linux

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Subject: [ts-7000] Re: Problem mounting partitions on 2GB SDcard on TS-Linux
From: "bassplyr647" <>
Date: Sat, 04 Sep 2010 11:41:24 -0000

Hi Claudio,
  Don't know if this will help, but I've had success getting a 4GB SD card to 
work using Derek's guide (see link below).  Basically, it allows you to grow 
the partitions from the 512MB install.

http://oz.embeddedarm.com/~derek/Grow_SD_Card/grow_sd_card.html

  Hope this helps.

Todd

--- In  Claudio Felix <> wrote:
>
> Hi everyone,
> 
> I have an application using the TS-7400 for which kernel 2.4 is too
> old, so I managed to get kernels 2.6.32.3 and later 2.6.34 running on
> it with the Matt's patches. My end application will run from SDcard,
> and so I was mounting my boot partition from the SDcard and using
> "bootloader.o / static_bootload" to boot my 2.6 kernel from the
> TS-FLASHBOOT environment resident on the board's flash memory. It was
> all fine while the SDcard used during development had a 512MB
> capacity. Since nowadays is quite hard to get SDcards this size, we
> got a 2GB one (non-SDHC), formatted it to hold our application
> filesystem but, when we try mounting it from the TS-FLASHBOOT Linux,
> we see this:
> 
> $ mount /dev/sdcard0/disc0/part1 /mnt2
> mount: Mounting /dev/sdcard0/disc0/part1 on /mnt2 failed: Invalid argument
> 
> If you look at /var/log/messages you can see this:
> VFS: Can't find ext2 filesystem on dev sdcard0(254,1).
> yaffs: dev is 65025 name is "fe:01"
> yaffs: Attempting MTD mount on 254.1, "fe:01"
> yaffs: dev is 65025 name is "fe:01"
> yaffs: Attempting MTD mount on 254.1, "fe:01"
> 
> The same thing happens if we try to mount partition2:
> 
> $ mount /dev/sdcard0/disc0/part2 /mnt2
> mount: Mounting /dev/sdcard0/disc0/part2 on /mnt2 failed: Invalid argument
> 
> and at /var/log/messages:
> VFS: Can't find ext2 filesystem on dev sdcard0(254,2).
> yaffs: dev is 65026 name is "fe:02"
> yaffs: Attempting MTD mount on 254.2, "fe:02"
> yaffs: dev is 65026 name is "fe:02"
> yaffs: Attempting MTD mount on 254.2, "fe:02"
> 
> Checking the partitions with fdisk, I noticed this warning about
> sector size being 1024 instead of 512:
> 
> $ fdisk -l
> Note: sector size is 1024 (not 512)
> 
> Disk /dev/sdcard0/disc0/disc: 1977 MB, 1977614336 bytes
> 16 heads, 61 sectors/track, 1978 cylinders
> Units = cylinders of 976 * 1024 = 999424 bytes
> 
>                   Device Boot    Start       End    Blocks   Id  System
> /dev/sdcard0/disc0/part1               1         100       97539   83  Linux
> /dev/sdcard0/disc0/part2   *         101         800      683200   83  Linux
> /dev/sdcard0/disc0/part3             801        3957     3081232   82
> Linux swap
> 
> Now, if I boot the same 2.6.34 kernel and root filesystem on NFS, I am
> able to mount the SDcard partitions just fine, and fdisk reports a 512
> byte sector size:
> 
> # fdisk -l
> 
> Disk /dev/tssda: 1977 MB, 1977614336 bytes
> 16 heads, 61 sectors/track, 3957 cylinders
> Units = cylinders of 976 * 512 = 499712 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
> 
>      Device Boot      Start         End      Blocks   Id  System
> /dev/tssda1               1         100       48769+  83  Linux
> /dev/tssda2   *         101         800      341600   83  Linux
> /dev/tssda3             801        3957     1540616   82  Linux swap
> 
> Notice that on kernel 2.6 I get 3957 cylinders and 512 bytes sector
> size for the SDcard, while on TS-Linux it reports 1978 cylinders and
> 1024 sector size. I would just like to know if there are any updates
> for either TS-Linux or its kernel 2.4 SDcard driver so it is possible
> to mount partitions correctly like it happens on kernel 2.6. I should
> stress this only happens on the 2GB SDCard - maybe the kernel 2.4
> driver conforms to an earlier (1.x) SDcard spec.
> 
> Has anyone been through something similar? I sent the same e-mail to
> TS also asking them to reconsider that "kernel 2.4 forever" policy.
> Kernel 2.6 is stable for years now and situations like this are
> increasingly more likely to happen.
> 
> Cheers,
> 
> Claudio
>




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