2dbdb1e66f
The partition being extended is in use and sfdisk can't reload such partition table. Tell it to not even try, it will be done by partprobe call below.
38 lines
1.1 KiB
Bash
Executable File
38 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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set -e
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dm_major=$(printf %x "$(grep device-mapper /proc/devices | cut -f 1 -d ' ')")
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case "$(stat -Lc %t:%T /dev/mapper/dmroot)" in
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ca:0)
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# nothing needed, xvda used directly
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;;
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ca:3)
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# resize partition table itself and xda3 partition
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echo ',+' | sfdisk --no-reread --no-tell-kernel -q -N 3 /dev/xvda
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# and reload partition table; prefer partprobe over blockdev
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# --rereadpt, as it works on mounted partitions
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partprobe /dev/xvda
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;;
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ca:*)
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echo "Unsupported partition layout, resize it manually" >&2
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exit 1
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;;
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$dm_major:*)
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new_size=$(cat /sys/block/xvda/size)
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ro=$(cat /sys/block/xvda/ro)
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if [ "$ro" -eq 1 ]; then
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new_table="0 $new_size snapshot /dev/xvda /dev/xvdc2 N 16"
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else
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new_table="0 $new_size linear /dev/xvda 0"
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fi
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dmsetup load dmroot --table "$new_table"
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dmsetup resume dmroot
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;;
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*)
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echo "Unsupported device type for root volume, resize it manually" >&2
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exit 1
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;;
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esac
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resize2fs /dev/mapper/dmroot
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