A storage medium used in mobile devices like digital cameras, tablets, smartphones, ...

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3
votes
2answers
123 views

File system that never breaks (data loss acceptable)

There're several existing topics revolving around this issue, but what I seek is slightly different. I have an sd card on an embedded Linux and it suffers from power loss. I might be able to modify ...
2
votes
1answer
37 views

How to make sd card as default boot in uboot?

U-Boot 2013.07 (Nov 21 2013 - 18:12:40) Memory: ECC disabled DRAM: 1 GiB MMC: zynq_sdhci: 0 SF: Detected N25Q128A with page size 64 KiB, total 16 MiB In: serial Out: serial Err: serial Net: ...
1
vote
0answers
49 views

Why is my embedded Linux unable to detect the sd device?

I have this ARM9 SAM9G25 embedded System, running a Linux 2.6.39 Kernel and a Busybox. I put the Images (of the bootloaders, and the linux+initramfs) on a SD so that in the end the system is booting ...
2
votes
0answers
40 views

Set PERM_WRITE_PROTECT on an SD card

From what I read here and here I gather that there is a bit on SD cards called PERM_WRITE_PROTECT that will allow me to make an SD card read only. Is it possible to set this bit from Linux? If so, ...
1
vote
0answers
36 views

Recovering files from partitions at a corrupted SD card?

I got a problem with my SD card which had got Raspbian. Everything seemed to be ok while working with the raspberry. I inserted it to my laptop running Ubuntu 12.04.4 to fetch some files. It first ...
0
votes
0answers
96 views

Alcor Multi Flash Reader Arch Linux

OS: Arch Linux Hardware: Toshiba S55 lsusb -v Bus 001 Device 004: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader Device Descriptor: bLength 18 bDescriptorType 1 ...
1
vote
1answer
20 views

Space Problems? [closed]

I just got a new SD card for my pi. Trying to install node.js, I ran out of space (I've also recently installed a LAMP server system). But, when I plug it into my main (Windows-Ubuntu dual-boot) ...
0
votes
0answers
85 views

Using gparted, deleted partition of memory card, then formated to fat 16; now its not working; error: no partition table present

I connected my Sony cyber-shot camera via cable to my laptop having Ubuntu 13.04. I wanted to make the memory card of the camera fresh to re-use. I opened GUI gparted. I did the below: 1) I selected ...
0
votes
0answers
45 views

Card Reader UB6520 on Parabola GNU/Linux

I'm trying to make work the SD card reader UB6250 on Parabola GNU/Linux. Could you help me please? After inserting the SD card, I get the following dmesg: [65408.273667] usb 2-5: new high-speed USB ...
2
votes
1answer
24 views

How to prepare a new MicroSDXC card for use with Android?

After buying a 64 GB MicroSDXC card and plugging it into my Android phone, it wasn't recognized. What do I need to do to use the space on this device? Many articles suggest installing closed source ...
2
votes
1answer
193 views

sfdisk failing to write partition to disk [closed]

I am trying make my microSD card bootable to Ubuntu. I am trying to use sfdisk to create the partitions. When I do that this is the error I am getting: Using sfdisk to create partition layout ...
1
vote
1answer
817 views

How would you install the RTS5139 Card Reader driver for use on Fedora 19 - have it on Ubuntu though

Is it possible to install the rts5139 driver in Fedora 19 3.11.8-200.fc19.i686.PAE kernel ? I have a Lenovo G570 laptop, on which I run Fedora 19 (3.11.8-200.fc19.i686.PAE kernel) one one hard ...
1
vote
1answer
62 views

How do I enable kernel option MMC_UNSAFE_RESUME

I am trying sleep and wake up my Kobo Mini ebook reader manually by using the command rtcwake. The reader is using busybox. cat /proc/version gives me this output: Linux version 2.6.35.3-850-gbc67621+ ...
1
vote
0answers
355 views

Linux Mint not detecting microSD card

I have a microSD card in my Android device and I would like to plug it into my computer to change the music and collected photos. However, I'm not able to do this. The OS does not seem to even notice ...
3
votes
2answers
377 views

Utility to TRIM unallocated space on drive

I have a drive (SD card) with a few ext4 partitions but also some unallocated space. The fstrim utility can only work within a filesystem. Before I reinvent the wheel and write one, is there another ...
1
vote
2answers
237 views

How to write to SD card with dd command?

Having some trouble with writing to my SD card, burning NOOBS (New Out Of Box Software) software to my SD card for Raspberry Pi. Attempted to use the following command as root: # dd bs=1M ...
9
votes
4answers
937 views

Stress testing SD cards using linux

I got into a little debate with someone yesterday regarding the logic and/or veracity of my answer here, vis., that logging and maintaining fs meta-data on a decent (GB+) sized SD card could never be ...
1
vote
2answers
159 views

Extract TAR to SD-Card and verify contents afterwards

We currently extract a TAR archive to a SD-Card like this tar xf ${ROOT}/rootfs.tar -C /cynox/${DRIVE}/${TARGET} As a side note: The rootfs.tar contains files for an embedded Linux system. Some of ...
1
vote
1answer
241 views

mmcqd hangs and burns the CPU on the embedded device

On my embedded system I'm writing an intensive video stream to SD. I don't mount partitions, just write to /dev/mmcblk0p1. After a while my writing process hangs. I get [16952.240000] INFO: task ...
2
votes
1answer
437 views

Resetting MMC controller without physically removing the card?

I'm trying to rescue data from an SDHC card using ddrescue: while true ; do ddrescue -d /dev/mmcblk0p1 mmc.img mmc.log ; done The controller, I'm not sure if it's the one on the card or the one in ...
0
votes
0answers
163 views

How to play HD Video from a class 4 Micro SD card?

I've recorded some film on to my micro SD card on my Samsung S3 phone and didn't realise that the SD card was a class 4. I recoreded it in FULL HD resolution 1920x1080, it recored fine, but I tried ...
2
votes
1answer
292 views

Risks involved with lazy_itable_init=1 for ext4 fs on SD card

My setup is the following: Linux kernel 2.6.28 e2fsprogs 1.42.7 64 GB class 10 SD card I am attempting to speed up the time it takes to format the entire card to an ext4 filesystem. My research ...
1
vote
0answers
235 views

USB SD card reader recognized with lsusb but no storage device shown with lsblk

I have a 2GB Micro SD card and a USB card reader. When I run lsusb I can see the card reader is recognized, but when I run lsblk I see no additional storage devices. [lane@Lane-ArchSystem 19:38:08 ...
2
votes
1answer
3k views

extending a partition by resize2fs

I have a 4 GB SD card. Before the image load root@ubuntu# fdisk -l Disk /dev/sdb: 3965 MB, 3965190144 bytes 49 heads, 48 sectors/track, 3292 cylinders, total 7744512 sectors Units = sectors of 1 * ...
0
votes
1answer
700 views

SD Card interpreted as wrong size

I used dd to write a 2GB image to an 8GB SD card; gparted now sees it as a 2GB SD card and I can't figure out how to format it for 8GB again. ddalso sees it as a 2GB SD card when trying to format it ...
1
vote
1answer
444 views

Chrubuntu on Acer C7: SD card reader only works on AC power?

I have an Acer C7 chromebook on which I have installed Chrubuntu. Everything works great except that the SD card reader doesn't work when the computer is running from battery power. It recognizes the ...
2
votes
1answer
1k views

Why is my SD card not being recognized?

I'm using Lubuntu 11.10 on a VAIO notebook. Here is my uname output: Linux vaio 3.0.0-16-generic-pae #28-Ubuntu SMP Fri Jan 27 19:24:01 UTC 2012 i686 i686 i386 GNU/Linux I don't know why but today ...
3
votes
2answers
2k views

SD card not accessible (works in an old Nokia though)

Background I have two visually same 2GB microSD cards, both labeled "SD-C02G JAPAN", under the "2GB microSD" logo. My problem is that I can't read one of them in any device except an old Nokia 5310 ...
2
votes
1answer
81 views

How to write isolinux to an ext4 filesystem

How would I write isolinux to an ext4 filesystem on an 1 GB SD card so that it would boot at startup?
0
votes
1answer
455 views

right way to mount sdcard in linux

i have a problem with mounting my camcoder with sdcard as volume. It seems it is sdcard problem, can it be repaired? I have reformated sdcard in windows system but this did'nt solve problem all ...
12
votes
6answers
862 views

Is it a bad idea to use an SD card for home directory?

I'm planning to make an SD card (or a flash drive) my home directory so as to be able to work on different PCs without much hassle. Is this a bad idea for some reason?
1
vote
1answer
777 views

SDcard support in Linux for ENE Flash UB6250 card reader (found on Acer Aspire One 522)

I have an Acer Aspire One 522 netbook for which I want to get the SDcard reader working, but I'm having trouble getting it to recognize the SDcard after it is inserted. I use Slackware and always ...
2
votes
0answers
422 views

How to check/test internal card reader speed

I got new SD card claimed to be 10 class of speed, but internal Disk utility in linux after test showed up only 6th class of speed. How can I check my card reader speed to be sure that it's not the ...
7
votes
3answers
472 views

Best file system for removable media

Recently I had a SD card destroyed ( software wise ) on me. Basically as well as I can figure it out, all the metadata was wiped (ext4 card). This happened when I was working and suddenly had to write ...
7
votes
1answer
3k views

How can I check the condition of an SD card?

How can I check the health condition of an SD card? When I want to check a hard drive, I can use SMART, how should I check an SD card? Is there a universal approach?
5
votes
1answer
998 views

Eye-FI SD Card not working with inbuilt card reader

I am tring to get my cardreader to work with and eye-fi SD card. My System is as follow: #uname -a Linux computer 3.2.0-0.bpo.2-amd64 #1 SMP Thu Mar 15 20:46:44 UTC 2012 x86_64 GNU/Linux Debian ...
2
votes
0answers
195 views

How can one force a re-scan of an SDIO bus from Linux user space?

On an embedded Linux platform, I have a network adapter attached to an SDIO interface. There is no Card Detect signal on this particular bus. If for instance, I turn the network adapter power on or ...
1
vote
4answers
8k views

SD card corrupt and stuck at 32MB, any way to fix it?

Using the Linux area since I'm using Linux apps and utilities. My phone crashed (several times) and managed to corrupt my microSD card. It no longer appears to have partitions and shows as 32MB ...
2
votes
1answer
586 views

SD card reader on Linux: SPI or SD protocol underneath

I've a notebook with a SD card reader and I was wondering if the GNU/Linux driver is using the SPI protocol or the proprietary SD protocol (one or four bits). I'm asking this because I'm testing a SPI ...
6
votes
3answers
2k views

Safely use SD cards when power can go out at any time

We're working on a small embedded Linux system (2.6.35-ish) with a smallish internal NAND device for the OS and applications (250-500Meg) and an SD card with 8Gb SDHC SD cards for data. The unit's ...
2
votes
1answer
1k views

Linux 2.6.32, busybox, Identify physical SD device

I have a USB card reader with two SD card interfaces and two USB ports (so it can also act as a USB hub) all on the same device. I am running an embedded Linux device that is unsupervised in its use ...
4
votes
2answers
6k views

Trouble getting busybox switch_root to work

I'm working on an embedded ARM Linux system that boots using initramfs. (Here's some background from a couple earlier questions, if you're interested.) So far, thanks in part to help received here, I ...