You can see this with other fs too. I saw this with ext2 (I mean ext2 on dfly) on usb stick.
2017-05-02 19:23 GMT+03:00 Matthew Dillon <[email protected]>: > Interesting. The usb block device is actually reporting a sector size of > 4KB. If you want to experiment a little, try changing the BBSIZE macro in > the ntfs module from 1024 to 4096 and recompiling it. The BBSIZE macro is > in /usr/src/sys/vfs/ntfs/ntfs.h (in DragonFlyBSD). If you are unsure how to > just recompile one module, then just recompile the whole kernel. > > I think the other block operations in ntfs are based on a block size defined > in the filesystem volume header so there's a chance that this might solve > the issue. > > -Matt > > On Tue, May 2, 2017 at 7:36 AM, Rod Person <[email protected]> wrote: >> >> Hi, >> >> I'm attempting to mount and external usb ntfs hard drive: >> <Seagate Backup+ Desk 0406> Fixed Direct Access SCSI-6 device >> >> In FreeBSD I mount it using the fuse driver, but being it isn't >> available in DragonFly, I'm just attempting with mount_ntfs. I get >> Invalid argument not matter how I try and mount it. I noticed the error: >> >> dscheck(da8): b_bcount 1024 is not on a sector boundary (ssize 4096) >> >> showing up in the dmesg and once when attempting to mount in the >> console before starting X. That error doesn't show if I try and mount >> in xterm, only writes to dmesg. I assume the the sector boundary is why >> I can't mount it, but is there any way around this? >> >> >> atomizer-dfly# mount_ntfs /dev/da8 /mnt/usb >> mount_ntfs: /dev/da8: Invalid argument >> >> also tried /dev/da8s1 same result >> >> atomizer-dfly# dmesg | grep dscheck >> dscheck(da8): b_bcount 1024 is not on a sector boundary (ssize 4096) >> dscheck(da8s1): b_bcount 1024 is not on a sector boundary (ssize 4096) >> >> >> atomizer-dfly# fdisk da8s1 >> ******* Working on device /dev/da8s1 ******* >> parameters extracted from device are: >> cylinders=45600 heads=255 sectors/track=63 (16065 blks/cyl) >> >> Figures below won't work with BIOS for partitions not in cyl 1 >> parameters to be used for BIOS calculations are: >> cylinders=45600 heads=255 sectors/track=63 (16065 blks/cyl) >> >> Media sector size is 4096 >> Warning: BIOS sector numbering starts with sector 1 >> Information from DOS bootblock is: >> The data for partition 1 is: >> sysid 79,(QNX 4.2 Tertiary) >> start 1936269394, size 1836016416 (7171939 Meg), flag d >> beg: cyl 335/ head 10/ sector 2; >> end: cyl 327/ head 84/ sector 13 >> The data for partition 2 is: >> sysid 115,(unknown) >> start 1917848077, size 544437093 (2126707 Meg), flag 70 >> beg: cyl 371/ head 114/ sector 37; >> end: cyl 256/ head 101/ sector 36 >> The data for partition 3 is: >> sysid 43,(unknown) >> start 1818575915, size 544175136 (2125684 Meg), flag 43 >> beg: cyl 364/ head 116/ sector 50; >> end: cyl 372/ head 65/ sector 44 >> The data for partition 4 is: >> sysid 97,(Speed) >> start 2844524554, size 54974 (214 Meg), flag 72 >> beg: cyl 372/ head 101/ sector 51; >> end: cyl 269/ head 114/ sector 52 >> -- >> Rod >> >> http://www.rodperson.com >> >> He who knows himself to be one way and pretends it is another way is a >> thief who robs his own soul. >> >> The Mahabharata >> Sakuntala 25 > >
