Robert <travelin...@cox.net> writes: > Greetings > > [robert@dell64] ~> uname -a > FreeBSD dell64.shasta204.local 8.2-STABLE FreeBSD 8.2-STABLE #34: Fri > Nov 18 06:43:01 PST 2011 > root@dell64.shasta204.local:/usr/obj/usr/src/sys/GENERIC amd64 > > I have two Lexar Professional 600X 16GB compact flash cards that are > unusable. fdisk shows: > > [robert@dell64] ~> fdisk /dev/da1 > ******* Working on device /dev/da1 ******* > parameters extracted from in-core disklabel are: > cylinders=29 heads=64 sectors/track=32 (2048 blks/cyl) > > parameters to be used for BIOS calculations are: > cylinders=29 heads=64 sectors/track=32 (2048 blks/cyl) > > fdisk: invalid fdisk partition table found > Media sector size is 512 > Warning: BIOS sector numbering starts with sector 1 > Information from DOS bootblock is: > The data for partition 1 is: > sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD) > start 32, size 59360 (28 Meg), flag 80 (active) > beg: cyl 0/ head 1/ sector 1; > end: cyl 28/ head 63/ sector 32 > The data for partition 2 is: > <UNUSED> > The data for partition 3 is: > <UNUSED> > The data for partition 4 is: > <UNUSED> > > It shows only 28 MB instead of 16GB. I have tried to change the type > from 165 (FreeBSD) to msdosfs types 6 11 or 12 using fdisk -u and fdisk > -i and also "sade". I do not get an error but when finished it still > shows the same data. > > I have tried to zero it out using " dd if=/dev/zero of=/dev/da1 bs=1m > and nothing changes. I have tried different block sizes and counts to > no avail.
If you zero it out and fdisk still sees a partition table, the write probably didn't really happen. [Modulo some possible issues with the kernel caching the disk parameters.] fdisk is sometimes a bit quiet about its errors, but dd isn't... _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
