On Sun, 2012-03-04 at 18:27 +0000, mike cloaked wrote: > On Sun, Mar 4, 2012 at 4:38 PM, Peter Larsen > <plarsen@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Patric, > > fdisk (you have to start using -cul instead of -l) reports what-ever the > > partition table contains. It's utterly ignorant to what's on the actual > > partition. So simply login with fdisk, do a "t" and change the partition > > type to what-ever you want. > > > > Be aware that linux ignores those types - they have absolutely no impact > > on how your system works. > > > > I guess that creating a partition type using a disk partitioning tool > like gparted or fdisk is different, and independent, to the filesystem > that is subsequently generated inside the partition! Absolutely. The "partition type" is something DOS/Windows uses (to a degree) and for backwards compatability reasons, you still see MS products use these labels. Linux, however, does not adhere to or use the partition types at all. > This is a piece > of knowledge, or lack of, that leads to quit a lot of confusion! It's been this way for ages with Linux. To be frank, I don't recall a type where the partition types meant anything. The boot flag did before grub have a meaning, but since legacy grub came around (even lilo if I remember right) it's also being ignored. > > So you can make a dos partition but then put a filesystem in it that > is ext4 or LVM for example..... I wonder if there is a good simple > tutorial around that explains disk partitioning and filesystems? The fedora project has some very good documentation on LVM: http://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/ch-lvm.html To be honest, partitions are really a thing of the past. As we move away from the DOS partition tables, the last fight is really about boot security than anything else. Only on systems that are dual-booted does partitions make sense. With Grub2 we can now have a single partition for everything - and the reason we have the partition table is due to the bios needs during boot. But in essence all we need is a pointer to a location on the drive where the file-system begins. With LVM we then divide things up in smaller pieces that can will serve you a lot better than partitions will. In other words - you shouldn't have 10,11 or 12 partitions. http://docs.fedoraproject.org/en-US/Fedora/16/html-single/Installation_Guide/index.html#ch-partitions-x86 There's plenty of documents in the fedoraproject and while there is room for improvements you should be able to use the links provided here to dive a bit into the wonderful world of file systems. > > Anyone know? > -- > mike c -- Best Regards Peter Larsen Wise words of the day: I could dance with you till the cows come home. On second thought, I'd rather dance with the cows till you come home. -- Groucho Marx
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