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kern/48378: LFS can't mount FS newfs_lfs created

>Number:         48378
>Category:       kern
>Synopsis:       LFS can't mount FS newfs_lfs created
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 13 15:55:00 +0000 2013
>Originator:     Reinoud Zandijk
>Release:        NetBSD 6.99.23
System: NetBSD 6.99.23 NetBSD 6.99.23 (GENERIC) #6: Sun 
Jul 7 19:00:12 CEST 2013
Architecture: x86_64
Machine: amd64
When experimenting with LFS, i tried to create an oddball LFS system to test
for the speed impact of various choices. It newfs'd fine but the kernel
wouldn't mount.

diablo# newfs_lfs -b 512k -B 64M /dev/rvnd0a
Creating a version 2 LFS with roll-forward ident 0x5c642b6a
9984.0MB in 156 segments of size 67108864
super-block backups (for fsck -b #) at:
16, 1966080, 3932160, 5898240, 7864320, 9830400, 11796480, 13762560, 15728640,

diablo# mount -t lfs /dev/vnd0a /mnt
mount_lfs: /dev/vnd0a on /mnt: incorrect super block


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