Unmountable SD-card and dd

michaelk · 03-14-2017, 07:49 AM

The output of the file command does not indicate a filesystem nor a mbr/gpt.
It could be broken or corrupted also.

Missed your latest post. Looks like the partitions are being recognized now.

aragorn2101 · 03-16-2017, 12:53 AM

As you can see from the links present in /dev/disk/by-*/ the SD card partitions and USB partitions are being detected. Now you need to know the filesystem of each /dev/sda* and /dev/mmcblk0p*. You can try as root:

Code:

fsck -N /dev/sdaX
fsck -N /dev/mmcblk0pX

where you replace X with the partition number. Please be very CAREFUL with fsck as it can do lots of damage if not used properly. The information obtained from this command will be very useful in knowing which filesystem is under /dev/sdaX.

sarah1 · 03-19-2017, 05:22 AM

Now both are mmcblk0pX

STICK:

sudo fsck -N /dev/mmcblk0
fsck from util-linux 2.25.2
[/sbin/fsck.ext2 (1) -- /dev/mmcblk0] fsck.ext2 /dev/mmcblk0

sudo fsck -N /dev/mmcblk0p1
fsck from util-linux 2.25.2
[/sbin/fsck.vfat (1) -- /dev/mmcblk0p1] fsck.vfat /dev/mmcblk0p1

sudo fsck -N /dev/mmcblk0p2
fsck from util-linux 2.25.2
[/sbin/fsck.ext2 (1) -- /dev/mmcblk0p1] fsck.ext2 /dev/mmcblk0p2

sudo fsck -N /dev/mmcblk0p5
fsck from util-linux 2.25.2
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p1] fsck.ext4 /dev/mmcblk0p5

sudo fsck -N /dev/mmcblk0p6
fsck from util-linux 2.25.2
[/sbin/fsck.vfat (1) -- /dev/mmcblk0p1] fsck.vfat /dev/mmcblk0p6

sudo fsck -N /dev/mmcblk0p7
fsck from util-linux 2.25.2
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p1] fsck.ext4 /dev/mmcblk0p7

SD-Card:

sudo fsck -N /dev/mmcblk0
fsck from util-linux 2.25.2
[/sbin/fsck.ext2 (1) -- /dev/mmcblk0] fsck.ext2 /dev/mmcblk0

sudo fsck -N /dev/mmcblk0p1
fsck from util-linux 2.25.2
[/sbin/fsck.vfat (1) -- /dev/mmcblk0p1] fsck.vfat /dev/mmcblk0p1

sudo fsck -N /dev/mmcblk0p2
fsck from util-linux 2.25.2
[/sbin/fsck.ext2 (1) -- /dev/mmcblk0p2] fsck.ext2 /dev/mmcblk0p2

sudo fsck -N /dev/mmcblk0p5
fsck from util-linux 2.25.5
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p5] fsck.ext4 /dev/mmcblk0p5

sudo fsck -N /dev/mmcblk0p6
fsck from util-linux 2.25.6
[/sbin/fsck.vfat (1) -- /dev/mmcblk0p6] fsck.vfat /dev/mmcblk0p6

sudo fsck -N /dev/mmcblk0p7
fsck from util-linux 2.25.2
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p7] fsck.ext4 /dev/mmcblk0p7

aragorn2101 · 03-19-2017, 06:05 AM

The output which follow "SD-Card" above seems more normal than the one for "STICK".

Anyway, the partitions which you see as vfat can be mounted using

Code:

mkdir /mnt/mountpoint1
mount -t vfat /dev/mmcblk0p6 /mnt/mountpoint1

And the ext4 as

Code:

mkdir /mnt/mountpoint2
mount -t ext4 /dev/mmcblk0p5 /mnt/mountpoint2

Just try and see. But I have to say, it is quite confusing how your system is naming the devices.