On Sunday, February 08, 2015 02:30:32 AM Bob Proulx wrote: > Gene Heskett wrote: > > Then why is fdisk complaining?: [...] > It is informative to read the fdisk man page and read the BUGS > section. > > man fdisk (on Wheezy 7) > > There are several *fdisk programs around. Each has its > problems and strengths. Try them in the order cfdisk, fdisk, > sfdisk. (Indeed, cfdisk is a beautiful program that has strict > requirements on the par- tition tables it accepts, and produces high > quality partition tables. Use it if you can. fdisk is a buggy > program that does fuzzy things - usually it happens to produce > reasonable results. Its single advantage is that it has some support > for BSD disk labels and other non-DOS par- tition tables. Avoid it if > you can. sfdisk is for hackers only -- the user interface is terrible, > but it is more correct than fdisk and more powerful than both fdisk and > cfdisk. Moreover, it can be used nonin- teractively.) > > These days there also is parted. The cfdisk interface is > nicer, but parted does much more: it not only resizes partitions, but > also the filesystems that live in them. > > The Jessie 8 version seems to have been given some love and rewriten. > I didn't see a util-linux backport to Wheezy or I would suggest it. > > > /dev/sda2 1919979518 1953523711 16772097 5 Extended > > Partition 2 does not start on physical sector boundary. <------here > > That is an extended partition. That is not your swap partition. That > partition is one of the primary partitions that holds the logical > partitions. It is the extension to allow more than four partitions. > > https://en.wikipedia.org/wiki/Extended_boot_record > > And this is a good example where fdisk is showing its age. It is > worried you might violate a concept that doesn't exist anymore. If > you must use fdisk then you simply must ignore those useless warnings. > You aren't actually using sda2 other than to hold sda5. > > > /dev/sda5 1919979520 1953523711 16772096 82 Linux swap / > > Solaris > > > > But do the math, and it is aligned. fdisk is lying? IDK. > > 'fdisk' didn't say that sda5 was not aligned. fdisk didn't complain > about sda5 at all. fdisk complained about sda2 but that was a > different complaint. But fdisk was happy with that sda5. It was only > you that was unhappy. So it would appear, and in fact the disk sems to be happier that a clam.
> You might want to use parted for alignment checks. Had to install it, but it agrees, although the last example you show is confusing, Here I get the 2 not aligned, but your paste says 1. > > root@phobia:~# parted /dev/sda align-check opt 1 > 1 aligned > root@phobia:~# parted /dev/sda align-check opt 5 > 5 aligned > > root@turmoil:~# parted /dev/sda align-check opt 1 > 1 not aligned > > Bob 1. So it seems I have been barking at the moon. But my first install on one of these new 4k/sector drives suffered from 20 meg a second drive performance, so I was an early victim. A Mandrake install IIRC. I liked it, but then they went toes up. So at that point I went back to the same install I am using on my cnc machines so that I could write gcode from a warm comfy chair as apposed to standing up at the keyboards of those machines. Now this install is compatible with those, I share all 3 machines with each other via nfs to move code, and with an rt-pre-empt kermel I can at least run the simulation to check the correctness of my code while carving imaginary air. I have other problems that I may ask about, but lets put a ~30~ on this thread 2. I am finally having a conversation with somene who does appear to be familiar with the subject/problem, and I thank you very much, Bob. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/201502080656.27229.ghesk...@wdtv.com