halt turns off dirty cache in hard drive?

[Brad Midgley]

hi,

i found a troubling problem. if i

 shutdown -r now

the root filesystem is clean when i get back into linux. however, if i

 shutdown -h now

the root filesystem has to be fsck'd. i only noticed this with the pre-x
kernel. the drive is a quantum 1225s connected to mesh. i am guessing from
this behavior that the latter command removes power from the drive while
its write cache is still dirty. any other possibilities? 

brad


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