0
votes
2answers
70 views

Use/See whole the flash memory space

When we bought a N Giga Byte flash memory, the free space that the OS provide for us, is less than N GigaBytes. For example, for a 2 GB flash memory, total space that we can use, is 1.86 GB. As far ...
1
vote
1answer
72 views

How can I determine the cause of CF card corruption?

I installed qnx in my CF card and made it bootable and it was working well. However, yesterday it stopped working while my system was running. Checking the filesystem revealed that it was corrupted. ...
0
votes
0answers
59 views

Unable to make file system writtable no matter what

I have a flash card SanDisk of a camera which I plug in into my computer: $ lsblk mmcblk0 179:0 0 3.7G 1 disk └─mmcblk0p1 179:1 0 3.7G 1 part $ mount /dev/mmcblk0p1 on ...
3
votes
1answer
341 views

rootfs.jffs2 files system won't fit in mtd3

I have a files system that I am trying to put in flash memory mtd3 partition. I first boot using uboot and then do run sdboot to boot using SD card as shown below: U-Boot-PetaLinux> ...
6
votes
3answers
2k views

Which Linux file systems for USB sticks?

For Linux desktops, when Windows compatibility is not an issue, which file system is preferred for USB sticks? For example ext2, ext3, ext4, btrfs, nilfs, or even NTFS? Would journaling wear them out ...
1
vote
2answers
487 views

Embedded device: How to do raw reads and write to flash (emmc/movinand) bypassing file system cache

I have an embedded device with a flash memory running linux. I want to do raw read writes on the flash part but I also want to avoid any file system cache. How can I do this? Any pointers?
3
votes
5answers
796 views

Using a differencing, aka overlay, aka union, file-system with commit capability

I work in two PCs and I sync all my files from my primary PC to a USB flash memory. In my second PC, I mount the USB flash memory to the same path to work on my files as I were on my primary PC. Now ...