[ale] Questionable output from fdisk -l

Scott Castaline hscast at charter.net
Tue Sep 25 14:19:00 EDT 2007


I've noticed when I do a fdisk -l, I'm getting invalid partition table 
errors as follows:

Disk /dev/dm-7: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-7 doesn't contain a valid partition table

This goes through to dm-15, with the only difference being the 
capacity/geometry listed for each. I also noticed in /dev that there are 
block device files for dm-7 to dm-15. What do these represent? I 
physically have 4 HDDs:

#1 80 GB PATA HDA  (Fedora7 refers to it as sda)
#2 250 GB PATA HDB (Fedora7 refers to it as sdb)
#3 160 GB SATA SDA (Fedora7 refers to it as sdc)
#4 500 GB SATA SDB (Fedora7 refers to it as sdd)

I am using LVM on all 4 drives. The 1st one is my main drive for FC6 and 
the 2nd one is the main drive for F7, while both SATA drives are used in 
both FC6 & F7. I haven't tried it yet on FC6 to see if it happens there 
too, yet.



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