Generic SD card not bootable (info)

[demoz]

Hello,

Before checking card compatibility on following link : http://elinux.org/RPi_SD_cards
I have noticed that my spare (32GB) SD card is not bootable.
I went further in investigation and have utilized GParted just to find out that ext4 filesystem have have red exclamation mark "!"

So i have tried to convert ext4 to : ext3,ext2,btrfs,etc... Every conversion resulted in faulty partition.

Since it is a 32GB SD card(class 10), it wouldn't be great to toss it ... I was wondering if anyone faced this problem/scenario and maybe found solution to make partition functional ?

I have also tried various images which provide different filesystems on file partition : bsd,arch,... and got same result - faulty partition.

[wh7qq]

Have you tried to reformat the card to FAT32 and reflashing the OS? The RPi requires a small FAT 32 boot partition in order to start so the image files flash the boot partition and an ext4 partition which contains the /root directory.

[drgeoff]

Try formatting it in a digital camera.

[PhilE]

Download a copy of h2testw if you are on Windows, or search for h2testw and your platform name. It is a utility which will test the integrity and capacity of your card. Assuming that works, you could then use the official SD card formatter to trash the existing partitions and return it to a single, large partition, then use WinDiskImage or Etcher to write an image. If any step in that chain fails then I would toss the card - Class 10 32GB cards from reputable manufacturers and suppliers, e.g. Samsung Evo from Amazon, are about £12 - 5 cups of coffee or a lunch.

[demoz]

Have you tried to reformat the card to FAT32 and reflashing the OS? The RPi requires a small FAT 32 boot partition in order to start so the image files flash the boot partition and an ext4 partition which contains the /root directory.

Yup i tried, problem is that filesystem partition can't be formated to ext4 due to generic card limitations.

[demoz]

Download a copy of h2testw if you are on Windows, or search for h2testw and your platform name. It is a utility which will test the integrity and capacity of your card. Assuming that works, you could then use the official SD card formatter to trash the existing partitions and return it to a single, large partition, then use WinDiskImage or Etcher to write an image. If any step in that chain fails then I would toss the card - Class 10 32GB cards from reputable manufacturers and suppliers, e.g. Samsung Evo from Amazon, are about £12 - 5 cups of coffee or a lunch.

I tried to manually format the partition multiple times, did several tests too.. limitation is due the card is generic.. I ended up with tossing it

[runboy93]

Use sandisk or samsung cards.