bea...@sdf.org (beaker) writes: >Is it safe and sufficient to run 'mbrlabel -fw <device>' on NetBSD >whenever there has been partition resizing (usually via Gpartd) >such that the disklabel no longer reflects the current partitioning >state?
mbrlabel creates disklabel entries for MBR partition entries, nothing generic. It also won't move any data. >System in question is an old 32bit i386 with an MBR partition scheme >on a SATA disc hosting several Linux partitions and one NetBSD FFS2 >partition. Bootloader is GAG, not GRUB nor native NetBSD bootloader. If you only change the Linux partitions, you can use mbrlabel (without -w) to print the necessary disklabel entries. mbrlabel doesn't know how to delete or modify existing entries, so you need to do that and use the mbrlabel output as a template. If you want to modify or even resize the NetBSD partitions, it gets much more complicated. A save approach is to boot from an alternate installation (Live- or Installation-CD), backup the partitions, modify them accordingly and restore the partition content from the backup. You may also have to reinstall the bootloader.
