fsck or fstab config question

[pkaplan1 at comcast.net]

I'm running 10.04 on a laptop and have an external USB drive (/dev/sdb*) in my office that is connected to a base station. When I boot in the office and the drive is connected, everything is normal. When the drive is not connected, the boot process pauses to tell me that the external partitions on the drive can't be found (duh!, it's not connected) and awaits manual input to skip the step before starting the display manager. If I select skip, booting completes normally, but the next time I try to boot with the drive connected, all five partitions are subject to an fsck check, which can last up to five minutes. 


Here is my fstab file: 
---------- 



# /etc/fstab: static file system information. 
# 
# Use 'blkid -o value -s UUID' to print the universally unique identifier 
# for a device; this may be used with UUID= as a more robust way to name 
# devices that works even if disks are added and removed. See fstab(5). 
# 
# <file system> <mount point> <type> <options> <dump> <pass> 
proc /proc proc nodev,noexec,nosuid 0 0 
# / was on /dev/sda6 during installation 
UUID=b80d9e9f-6a32-478c-bf8f-1b49cb5efcae / ext4 errors=remount-ro 0 1 
# /home was on /dev/sda2 during installation 
UUID=8d92effb-373d-40be-8e1f-2c7100485fcd /home ext3 defaults 0 2 
# /jupiter was on /dev/sdb5 during installation 
UUID=5af75fba-045b-41c1-ae54-f7c5bc133694 /jupiter ext3 defaults 0 2 
# /mars was on /dev/sdb3 during installation 
UUID=27655aac-f0fc-40df-9ba1-8412d584b5c5 /mars ext3 defaults 0 2 
# /mercury was on /dev/sdb2 during installation 
UUID=08c89a6f-7c9c-4f59-b26d-e43921450ad9 /mercury ext3 defaults 0 2 
# /saturn was on /dev/sdb6 during installation 
UUID=a21074d2-7e57-4676-aeda-c80b560d9c68 /saturn ext3 defaults 0 2 
# /venus was on /dev/sdb1 during installation 
UUID=1968-2E97 /venus vfat utf8,umask=007,gid=46 0 1 
# /windows was on /dev/sda1 during installation 
UUID=B4BCCC8FBCCC4E14 /windows ntfs defaults,nls=utf8,umask=007,gid=46 0 0 
# swap was on /dev/sda5 during installation 
UUID=e9e4d493-e44e-4169-87bb-78157e04a056 none swap sw 0 0 


--------- 
Is there something here that is forcing an fsck and if so, what needs to be changed, either in fstab or in the fsck configuration. 


TIA 
Paul 

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