Partition
試圖在 Linux VM 中擴展卷時卡住了
我有一個在 Ubuntu 機器上執行(無頭)的 Debian Linux VM。我使用 vboxmanage 將虛擬磁碟的大小從原來的 20G 增加到了 30G。我已經嘗試了很多東西,但我仍然卡在顯示 20G 的 LVM 分區。
我從 ISO 啟動並進入修復模式。我通過刪除 sda2 和 sda5 分區並使用新的 End 扇區創建新分區來更改分區表。我無法從這裡擴展分區。
# df -h Filesystem Size Used Avail Use% Mounted on /dev/dm-0 19G 13G 5.5G 69% / udev 10M 0 10M 0% /dev tmpfs 1.6G 8.4M 1.6G 1% /run tmpfs 4.0G 0 4.0G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 4.0G 0 4.0G 0% /sys/fs/cgroup /dev/sda1 236M 33M 191M 15% /boot 192.168.10.177:/ 8.2G 2.4G 5.4G 31% /mnt/nfs # fdisk -l Disk /dev/sda: 30 GiB, 32212254720 bytes, 62914560 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xf5edb169 Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 499711 497664 243M 83 Linux /dev/sda2 499712 62914559 62414848 29.8G 5 Extended /dev/sda5 501760 62914559 62412800 29.8G 8e Linux LVM Disk /dev/mapper/ArkSrvr--vg-root: 18.9 GiB, 20300431360 bytes, 39649280 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/ArkSrvr--vg-swap_1: 872 MiB, 914358272 bytes, 1785856 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes # pvdisplay --- Physical volume --- PV Name /dev/sda5 VG Name ArkSrvr-vg PV Size 19.76 GiB / not usable 2.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 5058 Free PE 0 Allocated PE 5058 PV UUID yWin1N-w3A4-sIAR-O2q9-nqPp-ki4G-yPr7kr # lvdisplay --- Logical volume --- LV Path /dev/ArkSrvr-vg/root LV Name root VG Name ArkSrvr-vg LV UUID 6YHVao-5Pth-2gA7-w42j-wAW7-mc9W-sQcImK LV Write Access read/write LV Creation host, time ArkSrvr, 2017-03-06 08:51:00 -0600 LV Status available # open 1 LV Size 18.91 GiB Current LE 4840 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:0 --- Logical volume --- LV Path /dev/ArkSrvr-vg/swap_1 LV Name swap_1 VG Name ArkSrvr-vg LV UUID eElIsI-bGdy-Cuje-BacF-1zap-wzlS-ftD28h LV Write Access read/write LV Creation host, time ArkSrvr, 2017-03-06 08:51:00 -0600 LV Status available # open 2 LV Size 872.00 MiB Current LE 218 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:1 # lvextend -L+10G /dev/ArkSrvr-vg/root Insufficient free space: 2560 extents needed, but only 0 available # lvextend -l+100%FREE /dev/ArkSrvr-vg/root New size (4840 extents) matches existing size (4840 extents) Run `lvextend --help' for more information. # resize2fs /dev/ArkSrvr-vg/root resize2fs 1.42.12 (29-Aug-2014) The filesystem is already 4956160 (4k) blocks long. Nothing to do!
如何讓 /dev/ArkSrvr-vg/root 增加到 30G?
你錯過了一步。
您擁有的是分區內(一組1)物理卷內的邏輯卷內的文件系統。
您已經擴展了分區。下一步是擴展物理卷:
pvresize /dev/sda5
您不必在這裡指定大小:沒有大小參數,PV 將自動採用封閉容器允許的最大大小,在這種情況下是分區。
如果成功,該
pvdisplay
命令應顯示 Total PE 增加,並且 Free PE 不再為 0。因此您將擁有一些可以使用的空閒物理範圍。下一步是擴展邏輯卷,然後是文件系統。看起來你已經知道該怎麼做了。