jontheramer2
Member
- Joined
- Oct 13, 2012
- Messages
- 44
In the first SD slot I have my 32 gb card which contains all software I installed; it has been working perfectly since the beginning; no errors and it's fast enough for me. In slot 2 I have some games and emulator images etc on another 16 gb card which has some IO errors which make some games unreadable.
Now I usually use the pandora in server rooms and on the road as my linux machine for performing most tasks I need to perform. I bought a bunch of cards from China (actually because I needed mini sd convertors and it was cheaper to buy them with micro cards included) and all of them, after fdisk/mkfs give I/O errors on *other* computers but not on the pandora. There it says all is fine, even after fsck etc. But on other computers they are virtually unreadable and contain 1000s of errors.
I first thought it was cheap cards, but now I believe it's the 2nd slot. To test that, I took two identical cards, formatted / mkfs 1 in slot 1 and the other in slot 2. Both work fine on the Pandora, no errors and everything on them is readable. But the one from slot 2 doesn't work properly on other computers. It seems readable , but if i run something like find . on the directory structure on it, it starts dmesg'ing IO errors. Card 1 is fine. I swapped the cards and did the same thing; same thing happened; errors on card 2, none of card 1.
So another test; I created a new card on my ubuntu desktop, put on a file structure and put it in the pandora slot 2 ; everything is fine. Now on the pandora, I delete the directory structure and put a new one on (no format/fdisk, just rm -fR + cp -R). All is fine on the pandora, no errors, random files read fine. On the ubuntu machine it starts spitting errors again.
What do I do to diagnose this issue? It quite a weird issue to me?
Now I usually use the pandora in server rooms and on the road as my linux machine for performing most tasks I need to perform. I bought a bunch of cards from China (actually because I needed mini sd convertors and it was cheaper to buy them with micro cards included) and all of them, after fdisk/mkfs give I/O errors on *other* computers but not on the pandora. There it says all is fine, even after fsck etc. But on other computers they are virtually unreadable and contain 1000s of errors.
I first thought it was cheap cards, but now I believe it's the 2nd slot. To test that, I took two identical cards, formatted / mkfs 1 in slot 1 and the other in slot 2. Both work fine on the Pandora, no errors and everything on them is readable. But the one from slot 2 doesn't work properly on other computers. It seems readable , but if i run something like find . on the directory structure on it, it starts dmesg'ing IO errors. Card 1 is fine. I swapped the cards and did the same thing; same thing happened; errors on card 2, none of card 1.
So another test; I created a new card on my ubuntu desktop, put on a file structure and put it in the pandora slot 2 ; everything is fine. Now on the pandora, I delete the directory structure and put a new one on (no format/fdisk, just rm -fR + cp -R). All is fine on the pandora, no errors, random files read fine. On the ubuntu machine it starts spitting errors again.
What do I do to diagnose this issue? It quite a weird issue to me?