hmm its strange. after reboot, /dev/sdb1 disapears but /dev/sdb is there. but in fdisk it says /dev/sdb1 is there.
dcerouter_75118:~# ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda5 /dev/sda6 /dev/sdb
dcerouter_75118:~# fdisk /dev/sdb
The number of cylinders for this disk is set to 60801.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x59ccd228
Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 5 Extended
Command (m for help): q