Lvm-mount-hack » История » Версия 1
Андрей Волков, 2015-05-05 13:27
| 1 | 1 | Андрей Волков | h1. Lvm-mount-hack |
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| 4 | h2. Смещение в байтах от начала диска. |
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| 6 | pvs -o pv_name,pe_start,seg_size --units b |
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| 7 | |||
| 8 | <pre> |
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| 9 | PV 1st PE SSize |
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| 10 | /dev/vda 1048576B 3221225472B |
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| 11 | </pre> |
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| 12 | |||
| 13 | PV_OFFSET=1048576 |
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| 14 | SEG_SIZE=3221225472 |
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| 16 | lvdisplay -m storage/root |
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| 18 | h3. Важно, чтобы: |
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| 20 | <pre> |
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| 21 | Segments 1 |
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| 22 | </pre> |
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| 24 | h3. Данные для монтирования. |
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| 26 | <pre> |
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| 27 | --- Segments --- |
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| 28 | Logical extent 0 to 767: |
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| 29 | Type linear |
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| 30 | Physical volume /dev/vda |
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| 31 | Physical extents 0 to 767 |
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| 32 | </pre> |
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| 33 | |||
| 34 | START_SEG=0 |
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| 36 | lvs --units b |
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| 37 | |||
| 38 | <pre> |
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| 39 | LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert |
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| 40 | root storage -wi-ao---- 3221225472B |
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| 41 | </pre> |
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| 42 | |||
| 43 | BLK_SIZE=3221225472 |
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| 45 | h2. Создание: |
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| 47 | losetup -f -o $[${PV_OFFSET}+${SEG_SIZE}*${START_SEG}] --sizelimit ${BLK_SIZE} |