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** Changed in: apport (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1338962
Title:
grub-probe can't handle large number of devices
Status in apport package in Ubuntu:
Incomplete
Bug description:
Running Ubuntu server 12.04.4LTS. Server is attached to several disk trays
plus a boot disk. Total number of drives is 138. 25 of the drives are
multi-pathed and am running multipathd to create entries in /dev/mapper for the
drives. when updating grub, grub-probe issues the error:
-------
Setting up grub-common (1.99-21ubuntu3.15) ...
Setting up grub2-common (1.99-21ubuntu3.15) ...
Setting up grub-pc-bin (1.99-21ubuntu3.15) ...
Setting up grub-pc (1.99-21ubuntu3.15) ...
grub-probe: error: device count exceeds limit.
grub-probe: error: device count exceeds limit.
grub-probe: error: device count exceeds limit.
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Grub enumerates /dev/sd*, and /dev/mapper/* files. Since some of
the drives have partitions on them they are also added to the list.
So grub would see about 300 devices.
work-around is that I have to reboot the server, un-hook several of
the trays, run an update, then reboot & rehook the trays. This
makes remote support impossible as I have to be physically present to
move the cables, also it requires downtime for a simple grub update
which otherwise would not.
Realistically the limit here should be increased to 1024 or more
devices. The vast majority of the drives I have are raw (non
partitioned) which I use volume management tools to parse out, but
others would probably be using partitions which would easily double or
more the number of devices presented.
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