Re: [leaf-devel] Cramfs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Erich Titl wrote: | Hi folks | | I would like to use cramfs to store static filesystems on flash. I know | lince and wisp-dist did that before, I just seem to miss the point on | how to get the xx.cramfs file to the flash medium. | | Do I have to treat it like a binary file system image or can I copy it | to a partition. | | If so what would be the partition type to use. | | Thanks for pointers I believe it's a binary file system image, which you should be able to test by mounting it via a loop-back device. Note that AFAIK, being a binary filesystem image doesn't mean you can't copy it to a partition. Copying it to flash, however, is another story. What kind of flash are you talking about? If this is an embedded system, you have to compile things like pointers to the flash memory into the device driver so the system knows how to talk to it, and get your flash programmed somehow. If you're talking about one of the flash cards that does disk emulation (ie: CF card or similar), I think you can just copy the image over (ie: dd if=image.cramfs of=/dev/hda1). - -- Charles Steinkuehler [EMAIL PROTECTED] -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFCuWfKLywbqEHdNFwRAuqyAJ9RExra5Grtn1RtBNZb9Qt+HWmnxACcDmoL hx1l4qYq64TioZVoCEbt7uk= =K5Ky -END PGP SIGNATURE- --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ leaf-devel mailing list leaf-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-devel
Re: [leaf-devel] Cramfs
Charles Charles Steinkuehler wrote: Erich Titl wrote: | Hi folks | | I would like to use cramfs to store static filesystems on flash. I know | lince and wisp-dist did that before, I just seem to miss the point on | how to get the xx.cramfs file to the flash medium. | | Do I have to treat it like a binary file system image or can I copy it | to a partition. | | If so what would be the partition type to use. | | Thanks for pointers I was assuming this, I could, of course, loop mount the cramfs file. I am just wondering about partition type and size if I just copy the cramfs image to a partition. Thanks Erich --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ leaf-devel mailing list leaf-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-devel
Re: [leaf-devel] Cramfs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Erich Titl wrote: | Charles | | Charles Steinkuehler wrote: | Erich Titl wrote: | | Hi folks | | | | I would like to use cramfs to store static filesystems on flash. I know | | lince and wisp-dist did that before, I just seem to miss the point on | | how to get the xx.cramfs file to the flash medium. | | | | Do I have to treat it like a binary file system image or can I copy it | | to a partition. | | | | If so what would be the partition type to use. | | | | Thanks for pointers | | | I was assuming this, I could, of course, loop mount the cramfs file. I | am just wondering about partition type and size if I just copy the | cramfs image to a partition. AFAIK, the partition (or chunk of raw flash) you copy the cramfs image file to simply has to be *BIGGER* than the image. Any extra space is simply wasted (this is a read-only filesystem, after all). Also, I don't think there is a partition type code specific for cramfs (this FS is mainly used in raw flash or as a ramdisk image, after all). That shouldn't be a problem, however...just use whatever code you want (ie: 0x83, 0xcf, whatever). The kernel typically identifies cramfs partitions via a 'magic number' at the start of the filesystem data, rather than via partition type codes (only available on HDD and similar media) anyway. - -- Charles Steinkuehler [EMAIL PROTECTED] -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFCuYnxLywbqEHdNFwRAlGXAKCizcCVtCF7PFLevlog+R2bosP00ACeN5Xt J//w+orAVsEN63JxR/aV4Lo= =aglg -END PGP SIGNATURE- --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477alloc_id=16492op=click ___ leaf-devel mailing list leaf-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-devel
