From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Reder Sent: Monday, August 20, 2007 11:09 AM To: [email protected] Subject: ext2 filesystem on 256MB nand flash
>I have a custom ARM board with 16MB of SDRAM. I also have a 256MB nand flash. I can create and download a filesystem as long as it >is less than 16MB. >Does anyone know how I specify to the ext2 filesystem that it has 256MB of flash to work with (size of partition) but only have the file that is >created less (right now, it is about 10 MB). First, I am sorry for replying to my own mail, but wanted to add info to be clearer on what the issue is as I have done more investigation. I build another image with jffs2 and when I do a df, I see what I expect to: # df Filesystem Size Used Available Use% Mounted on /dev/mtdblock4 256.0M 11.9M 244.1M 5% / # That is, there is a total of 256MB in the partition and the kernel et al know about it. When I do the same thing with ext2, it shows as having around 10.4 M for the size. This is no doubt in how the file is built. Is there a way to have a file be, let's say, 10 mb big, but within the ext2 file, have it know that it has 256Mb to use? I have tried using the block size but that just balloons the size of the file, which is not what I am looking for. Thanks for any help or explanations on how to properly build the ext2 file (ext2 is so much quicker to mount and seems so much more reliable that I would like to use it, if possible.
