Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger: > > 4) Everything I've done so far leave me with messages about partition > > 1 not ending on a cylinder boundary. Googling on that one says don't > > worry about it. I don't know...
Well since only the start of a partition determines its alignment with hardware sectors, I think it's really not that important. Worst case: mkfs truncates the last few sectors to make it a multiple of its cluster size. > Anyway, mine's like this, just to throw it into the pot to the others > ( those # are added by me to show their respective use ) > > eisen # fdisk -l -u /dev/sda > > Disk /dev/sda: 500.1 GB, 500107862016 bytes > 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors > Units = sectors of 1 * 512 = 512 bytes > Disk identifier: 0x80178017 > > Device Boot Start End Blocks Id System > /dev/sda1 * 63 25157789 12578863+ 7 HPFS/NTFS # Windows > /dev/sda2 25157790 88084394 31463302+ 7 HPFS/NTFS # Games > /dev/sda3 88084395 127941659 19928632+ 83 Linux # / > /dev/sda4 127941660 976768064 424413202+ 5 Extended > /dev/sda5 127941723 288816569 80437423+ 83 Linux # /home > /dev/sda6 288816633 780341309 245762338+ 83 Linux # music > /dev/sda7 813113973 976703804 81794916 83 Linux # X-Plane > /dev/sda8 * 976703868 976768064 32098+ 83 Linux # > /boot /dev/sda9 780341373 813113909 16386268+ 7 HPFS/NTFS # > Win7 test I have started amending my partitioning scheme, starting at the rear. Since my backup drive has exactly the same scheme, I’m working on that and then restore my local drive from it, so I need as little time in a LiveCD environment as possible. I have reset sdb7 to use boundaries divisible by 64. Old range begin%64 size%64 New range begin%64 size%64 813113973-976703804 0.8281 0.125 813113984-976703935 0 0 And guess what - the speed of truecrypt at creating a new container doubled. With the old scheme, it started at 13.5 MB/s, now it started at 26-odd. I’m blaming that cap on the USB connection to the drive, though it’s gradually getting more: after 2/3 of the partition, it’s at 27.7. So sdb7 now ends at sector 976703935. Interestingly, I couldn’t use the immediate next sector for sdb8: start for sdb8 response by fdisk 976703936 sector already allocated 976703944 Value out of range. First sector... (default 976703999): The first one fdisk offered me was exactly 64 sectors behind the end sector of sdb7 (976703999), which would leave a space of those mysterious 62 “empty” sectors in between. So I used 976704000, which is divisable by 64 again, though it’s not that relevant for a partition of 31 MB. :D As soon as truecrypt is finished, I'm going to solidify my findings by performing this on another partition, and I’ll also see what happens if I start at a start sector of k*64+1. Just out of curiousity. :-) -- Gruß | Greetings | Qapla' Crayons can take you more places than starships. (Guinan)
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