>Number: 162332
>Category: bin
>Synopsis: bsdlabel destroys partitions with indexes over 8
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Nov 06 14:10:05 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Eugene Grosbein
>Release: FreeBSD 8.2-STABLE amd64
>Organization:
RDTC JSC
>Environment:
System: FreeBSD grosbein.pp.ru 8.2-STABLE FreeBSD 8.2-STABLE #13: Sat Oct 22
20:07:08 NOVT 2011 [email protected]:/usr/local/obj/usr/local/src/sys/DADV
amd64
>Description:
GEOM now support upto 20 partitions within single BSD label.
To raise default limit (8) one have to create label as such:
gpart create -s BSD -n 20 ad0s1
But, "bsdlabel -e ad0s1" silently lowers limit down to 8
and destroys partitions numbered 9 (i) and more even
if one exits an editor without saving the label.
>How-To-Repeat:
1. Create BSD label with command mentioned above:
gpart create -s BSD -n 20 ad0s1
2. Use gpart to create 9 partitions within a slice:
gpart add -t freebsd-ufs -s 1G ad0s1
...
gpart add -t freebsd-ufs -s 1G ad0s1
3. Use "gpart show" to make sure they are all created
4. Use "bsdlabel -e ad0s1", don't change anything and exit your editor.
5. Use "gpart show" to see that partition 9 has disappeared.
6. "gpart add" not refuses to recreate partition 9 as limit is 8 now.
>Fix:
Unknown.
Silent partition deletion in not acceptable, as well as changing of limit.
>Release-Note:
>Audit-Trail:
>Unformatted:
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