Re: Raw Disk

Mike Segel wrote: > > "Art S. Kagel" wrote: > > > guankiat wrote: > > > > > > Hi > > > > > > Can anyone advice how do I create a raw disk space in Linux (RedHat 6.1). > > > I'm trying to install IIF2000. Thank you > > > > Linux does not yet 'officially' support RAW devices. > > > > Hmmm I would have thought that you would have used the journaled file system to > create partitions, then unmount them. You now have a raw partition or > filesystem. NO, Mikey. That is NOT RAW it is still going through the Linux buffer cache as would writing directly to /dev/rdsk/sd2b or such. REAL RAW device support is currently an add-in which IS officially supported in the 2.x.x kernel but is not part of the official release. It IS scheduled to be an included part of the 4.x.x release kernel (and therefore is included in the current 3.x.x development kernel). > Oh and I'd remove the entries or comment out the entries from your fstab. > > Haven't done that trick for years, but it should still work. (You don't need > the JFS or LVM to do it, but it makes things easier. At least on AIX) AIX has REAL RAW devices, Linux, out-of-the-box does not. > Just a tip from your Uncle Mikey. Art S. Kagel