Dom grabbed a keyboard and wrote: > On 31/08/13 19:46, David Guntner wrote: >> >> I suppose it exists on the partition in a sense, but within the >> filesystem, it lives as /backup/etc/debian_version. /backup is the only >> mounted filesystem on /dev/sdb1. >> >> There's an actual /etc/debian_version file on sda5 (where / is mounted) >> as well. > > os-prober doesn't care where a particular partition is currently > mounted. It assumes that every partition might possibly be mounted as > "/" and examines the contents to see if there are certain files and > directories that look like they are part of a bootable system. > > It found etc/debian_version on sdb1 and therefore assumed that /dev/sdb1 > could be a bootable Debian system. So it would seem. :-) Yikes. Well, I've got the os-prober config file modified to cause it to ignore sdb1 now, so that takes care of it. However, if there's a better way of telling it how to omit a given partition without having to directly modify the config file, I'd love to know. I tried looking for a man page for os-prober, but no luck, and there's not much there at /usr/share/doc/os-prober.... I'll dig around some and see if I can find other info. (I know someone provided a reference in this thread (Brian, maybe?), but I've lost that E-Mail... Not my day....) --Dave
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