Skip to main content

FAQ

無法新增 PV

Device /dev/sdj not found (or ignored by filtering).

Solution: 可能該磁碟有包含其他磁區

# fdisk -l /dev/sdj

WARNING: GPT (GUID Partition Table) detected on '/dev/sdj'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdj: 3848.3 GB, 3848290697216 bytes
255 heads, 63 sectors/track, 467861 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdj1               1      267350  2147483647+  ee  GPT
Partition 1 does not start on physical sector boundary.

移除這磁碟裡的所有磁區後再試一次。

移除已損壞的 PV

無法移除已經損壞 PV 的 VG 與 LV

有一個 PV - /dev/sdc 發生損毀，所屬 VG 與 LV 要移除時遇到錯誤：

    Couldn't find device with uuid APgmaN-yCZG-WfQS-L5zm-vd6g-oEJc-WjzNrT.
    Can't remove locked LV isths_DMS

      Couldn't find device with uuid APgmaN-yCZG-WfQS-L5zm-vd6g-oEJc-WjzNrT.
      WARNING: Partial LV isths_home needs to be repaired or removed.
      WARNING: Partial LV isths_DMS needs to be repaired or removed.
      WARNING: Partial LV pvmove0 needs to be repaired or removed.
      There are still partial LVs in VG vg_db.
      To remove them unconditionally use: vgreduce --removemissing --force.
      Proceeding to remove empty missing PVs.

Solution: VG Name: vg_db

# vgcfgbackup vg_db
  Couldn't find device with uuid APgmaN-yCZG-WfQS-L5zm-vd6g-oEJc-WjzNrT.
  Volume group "vg_db" successfully backed up.

/etc/lvm/backup/vg_db:

...
logical_volumes {
...
...
}
...

將段落 logical_volumes 整個移除。

執行 vgcfgrestore

# vgcfgrestore vg_db
  Restored volume group vg_db

重新掃描再重新執行移除 LV 與 VG

pvs
vgs
lvs
vgremove vg_db
USB 掛載包含有 LVM 的硬碟，出現錯誤訊息

# mount -t ext3 /dev/VolGroup00/LogVol00 /mnt/lvm00
    mount: wrong fs type, bad option, bad superblock on /dev/mapper/VolGroup00-LogVol00,
           missing codepage or helper program, or other error
           In some cases useful info is found in syslog - try
           dmesg | tail  or so

Solution:

vgchange -an VolGroup00
vgchange -ay VolGroup00
mount -t ext3 /dev/VolGroup00/LogVol00 /mnt/lvm00
無法新增 LV

系統剛安裝完，執行 pvdisplay -C 出現錯誤，並且無法新增 LV

Couldn't find device with uuid ZrneWS-8KHd-UiXV-rQ4q-YU0o-r9Ga-0ZVBPW

Solution: 這個硬碟可能曾經做過 LVM 格式化，這些是之前遺留的裝置名稱，要清除這些不存在的舊設定。

# vgreduce -removemissing <vg-name>

TIPs：

    要查出這些不存在的 device 的所屬 VG，可以執行 pvdisplay 。

建立 GPT 磁區

With parted

# parted /dev/vdb
GNU Parted 3.4
Using /dev/vdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel GPT                                                      
(parted) mkpart primary 2048s 100%                                        
(parted) q                                                                
Information: You may need to update /etc/fstab.





No Comments
Back to top