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UFS on solaris 10, compatible with solaris 8?

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Operating Systems Solaris UFS on solaris 10, compatible with solaris 8?
# 8  
Old 09-07-2009
It is a bad and risky practice, better to create another slice, say s0, and grant it all the available space. That said, on SPARC, newfs on slice 2 should be harmless assuming no other slices are used.
# 9  
Old 09-07-2009
I have also used slice 2 in order to use the whole of a Solaris disk, it is fine as long as no other slice is in use!
What you don't do is use slice 2 for a raw volume, e.g. for a database, when using a raw volume you avoid cylinder 0 otherwise you will overwrite the superblock, not good!
# 10  
Old 09-08-2009
In any case, Solaris interfaces compatibility is expected when the target version is upper but not guaranteed the other way around. I'm not aware of specific enhancements with UFS between Solaris 8 and 10 outside logging being the default but I would have created the filesystem on Solaris 8 instead of 10 just to be sure.
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