A new R510 I'm working on comes with two partitions - one is "Dell Utility" and there's another FAT32 one. Neither have any files in them.
I shall be installing Linux on the server. Is there any problem with just deleting those two partitions? I'm assuming that I can run diagnostics using the iDRAC6 Enterprise card, should that become necessary.
Indications with this would be one of two things. The most likely cause of what you are seeing is the vflash card that resides within the iDRAC. This piece is used for hardware update deployment among a number of things. Other would be if anything is virtually mounted over the iDRAC, but that is unlikely with this being an out of the box issue.
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It's definitely one of the RAID sets on the disks:
[0:0:32:0] enclosu DP BACKPLANE 1.10 -
[0:2:0:0] disk DELL PERC H700 2.10 /dev/sda
[0:2:1:0] disk DELL PERC H700 2.10 /dev/sdb
[0:2:2:0] disk DELL PERC H700 2.10 /dev/sdc
[1:0:0:0] disk iDRAC LCDRIVE 0323 /dev/sdd
[2:0:0:0] cd/dvd iDRAC Virtual CD 0323 /dev/sr0
[2:0:0:1] disk iDRAC Virtual Floppy 0323 /dev/sde
[3:0:0:0] disk Kingston Dell HyperVisor PMAP /dev/sdf