| 2016-10-18 11:25:35 |
Paul Bourke |
description |
As part of change I362b3f8e91de79687fc84e256996fbcaf303b6af we put in a check to use udev to read GPT labels only if the version of udev installed supports that. Otherwise we fall back to sgdisk. The code currently falls back if udev version is <= 180. However, we're seeing version 219 on the latest release of Oracle VM (3.4.2) which still has this problem. Hence the check should be increased to 220. |
As part of change I362b3f8e91de79687fc84e256996fbcaf303b6af a check was added to use udev to read GPT labels only if the version of udev installed supports that, otherwise fallback to sgdisk.
Unfortunately the check for udev version is unreliable, as it is returning the version of the udev userspace tools installed within the container rather than on the host.
As well as this, we're seeing the find_disks.py having trouble reading the UUID of a partition via udev. The test system is Oracle VM 3.4.2 which was released earlier this year, but has an old udev (derivative of RHEL 6).
Overall without a reliable reference of which versions of udev support which operations, we need to give operators a reliable way to toggle it's usage. |
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| 2016-10-18 11:28:31 |
Paul Bourke |
description |
As part of change I362b3f8e91de79687fc84e256996fbcaf303b6af a check was added to use udev to read GPT labels only if the version of udev installed supports that, otherwise fallback to sgdisk.
Unfortunately the check for udev version is unreliable, as it is returning the version of the udev userspace tools installed within the container rather than on the host.
As well as this, we're seeing the find_disks.py having trouble reading the UUID of a partition via udev. The test system is Oracle VM 3.4.2 which was released earlier this year, but has an old udev (derivative of RHEL 6).
Overall without a reliable reference of which versions of udev support which operations, we need to give operators a reliable way to toggle it's usage. |
As part of change I362b3f8e91de79687fc84e256996fbcaf303b6af a check was added to use udev to read GPT labels only if the version of udev installed supports that, otherwise fallback to sgdisk.
Unfortunately the check for udev version is unreliable, as it is returning the version of the udev userspace tools installed within the container rather than on the host.
As well as this, we're seeing the find_disks.py having trouble reading the UUID of a partition via udev. The test system is Oracle VM 3.4.2 which was released earlier this year, but has an old udev (derivative of RHEL 6).
Even if we use Ansible to query the host's version of udev and pass that through to the container, querying the above disk attributes is a lottery on older systems without a reliable reference of which versions of udev support which operations. Hence we should give operators a reliable way to toggle it's usage. |
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