Re: Bitmaps Kernel Versions
Luca Berra a écrit : On Wed, Mar 15, 2006 at 09:08:17PM +1100, Neil Brown wrote: On Wednesday March 15, [EMAIL PROTECTED] wrote: Hi, I'm planning to use bitmaps on some of our RAID1 arrays. I'm wondering how bitmaps are handeled by older kernels. Eg: I create a raid array with a bitmap under a 2.6.15 kernel. I now want to boot under 2.6.12, or even 2.4 Hos is it handeled? Will it work even if this is my / partition? On older kernel will not notice the bitmap and will behave 'normally'. strange, last time i tried an older kernel would refuse to activate an md with a bitmap on it. I am far from home on a business trip and i don't have kernel-sources at hand, but i seem to remember that the kernel was very strict on the feature bitmap in the superblock. L. I experienced the same strange behavior. Bitmap was created on 2.6.15, tried to boot 2.6.14 and /dev/md0 was not started :$. Strange. - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Bitmaps Kernel Versions
On Wed, Mar 15, 2006 at 09:08:17PM +1100, Neil Brown wrote: On Wednesday March 15, [EMAIL PROTECTED] wrote: Hi, I'm planning to use bitmaps on some of our RAID1 arrays. I'm wondering how bitmaps are handeled by older kernels. Eg: I create a raid array with a bitmap under a 2.6.15 kernel. I now want to boot under 2.6.12, or even 2.4 Hos is it handeled? Will it work even if this is my / partition? On older kernel will not notice the bitmap and will behave 'normally'. strange, last time i tried an older kernel would refuse to activate an md with a bitmap on it. I am far from home on a business trip and i don't have kernel-sources at hand, but i seem to remember that the kernel was very strict on the feature bitmap in the superblock. L. -- Luca Berra -- [EMAIL PROTECTED] Communication Media Services S.r.l. /\ \ / ASCII RIBBON CAMPAIGN XAGAINST HTML MAIL / \ - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
