| pingu |
10-08-2014 03:43 AM |
Format & use disk fails - "used by system". LVM issue(?)
I have 2 disks, previously used for lvm, that I want to use in a new server. Problem is the partitions can't be formatted, I think it's an lvm issue but not sure.
I have read so much about this but found nothing useful. My system is CentOS 6.5, selinux is permissivr..
Here's what happens:
1 Booting from live-cd:
# dd if=/dev/zero of=/dev/sda bs=10M
2. Boot up normal system. Create one partition on /dev/sda
# mkfs.ext4 /dev/sda1
mke2fs 1.41.12 (17-May-2010)
/dev/sda1 is obviously used by system; will not create filesystem here! (Translated from Swedish.)
Checking filesystem partitions & mounts:
Code:
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdd2 44138980 1837452 40059380 5% /
tmpfs 8161924 0 8161924 0% /dev/shm
/dev/sdd1 495844 31704 438540 7% /boot
# cat /etc/mtab
/dev/sdd2 / ext4 rw 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw,gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs rw,rootcontext="system_u:object_r:tmpfs_t:s0" 0 0
/dev/sdd1 /boot ext4 rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
# fdisk -l (only showing for /dev/sda here)
Disk /dev/sda: 120,0 GB, 120033041920 byte
255 huvuden, 63 sektorer/spår, 14593 cylindrar
Enheter = cylindrar av 16065 · 512 = 8225280 byte
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Diskidentifierare: 0x00000000
Disk /dev/mapper/1ATA_ST3120827AS_4MS01PC9: 120,0 GB, 120033041920 byte
255 huvuden, 63 sektorer/spår, 14593 cylindrar
Enheter = cylindrar av 16065 · 512 = 8225280 byte
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Diskidentifierare: 0x00000000
This entry "/dev/mapper..." for /dev/sda tells me lvm is still holding the disk.
And reading /etc/lvm/cache/.cache - yes my disks are all there!
I did try to delete this file and change lvm.conf to search in non-existent directory instead of /dev, it didn't change anything.
Code:
# cat /etc/lvm/cache/.cache
# This file is automatically maintained by lvm.
persistent_filter_cache {
valid_devices=[
"/dev/disk/by-id/ata-Maxtor_6Y080M0_Y2KMZYLE-part3",
"/dev/block/1:13",
"/dev/block/1:14",
"/dev/ram11",
"/dev/disk/by-path/pci-0000:00:1f.2-scsi-3:0:0:0-part1",
"/dev/block/253:2",
"/dev/disk/by-id/scsi-SATA_Maxtor_6Y080M0_Y2KMZYLE-part3",
"/dev/disk/by-id/dm-name-1ATA_ST3120827AS_4MS01PC9",
"/dev/disk/by-id/ata-Maxtor_6Y080M0_Y2KMZYLE-part2",
"/dev/block/1:12",
"/dev/ram10",
"/dev/disk/by-id/dm-uuid-mpath-1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559",
"/dev/block/8:49",
"/dev/disk/by-uuid/c6770085-e8b0-403c-9757-46168bfc0ee8",
"/dev/block/253:3",
"/dev/disk/by-id/scsi-SATA_Maxtor_6Y080M0_Y2KMZYLE-part2",
"/dev/block/1:10",
"/dev/ram12",
"/dev/disk/by-path/pci-0000:00:1f.2-scsi-3:0:0:0-part2",
"/dev/block/1:6",
"/dev/mapper/1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559p1",
"/dev/ram6",
"/dev/block/8:50",
"/dev/block/253:1",
"/dev/mapper/1ATA_ST3160812AS_5LS55TSN",
"/dev/disk/by-id/ata-Maxtor_6Y080M0_Y2KMZYLE-part1",
"/dev/block/1:11",
"/dev/ram13",
"/dev/ram14",
"/dev/disk/by-path/pci-0000:00:1f.2-scsi-3:0:0:0-part3",
"/dev/block/1:5",
"/dev/disk/by-uuid/deae4ddc-73e8-45b1-988c-55e6b0dd20a1",
"/dev/ram5",
"/dev/block/8:51",
"/dev/disk/by-id/dm-name-1ATA_ST3160812AS_5LS55TSN",
"/dev/block/253:0",
"/dev/mapper/1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559",
"/dev/disk/by-id/scsi-SATA_Maxtor_6Y080M0_Y2KMZYLE-part1",
"/dev/block/1:15",
"/dev/disk/by-id/dm-name-1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559",
"/dev/dm-2",
"/dev/block/1:1",
"/dev/mapper/1ATA_ST3120827AS_4MS01PC9",
"/dev/ram1",
"/dev/sdd1",
"/dev/disk/by-id/dm-name-1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559p1",
"/dev/disk/by-uuid/559f67e4-cfe8-4e18-955c-6b8fb71c2bfa",
"/dev/dm-3",
"/dev/block/1:0",
"/dev/ram0",
"/dev/disk/by-uuid/376d57ea-b934-4a7d-af35-bc7829e5ca49",
"/dev/disk/by-id/dm-uuid-mpath-1ATA_ST3120827AS_4MS01PC9",
"/dev/dm-1",
"/dev/root",
"/dev/block/1:2",
"/dev/block/1:8",
"/dev/block/1:9",
"/dev/ram2",
"/dev/ram8",
"/dev/ram9",
"/dev/sdd2",
"/dev/dm-0",
"/dev/ram15",
"/dev/block/1:3",
"/dev/block/1:4",
"/dev/block/1:7",
"/dev/disk/by-id/dm-uuid-mpath-1ATA_ST3160812AS_5LS55TSN",
"/dev/disk/by-id/dm-uuid-part1-mpath-1ATA_WDC_WD5003ABYX-18WERA0_WD-WMAYP5327559",
"/dev/ram3",
"/dev/ram4",
"/dev/ram7",
"/dev/sdd3"
]
}
Various other commands tried:
Code:
# pvcreate /dev/sda1
Can't open /dev/sda1 exclusively. Mounted filesystem?
# vgdisplay
No volume groups found
# pvdisplay
(blank output)
# pvs -o+pv_used
(blank output)
# vgs -o +devices
No volume groups found
# lvs -P -a -o +devices
PARTIAL MODE. Incomplete logical volumes will be processed.
No volume groups found
# vgs -a -o +devices -P
PARTIAL MODE. Incomplete logical volumes will be processed.
No volume groups found
# vgscan
Reading all physical volumes. This may take a while...
No volume groups found
Code:
# lvm dumpconfig
config {
checks=1
abort_on_errors=0
profile_dir="/etc/lvm/profile"
}
dmeventd {
mirror_library="libdevmapper-event-lvm2mirror.so"
snapshot_library="libdevmapper-event-lvm2snapshot.so"
thin_library="libdevmapper-event-lvm2thin.so"
}
activation {
checks=0
udev_sync=1
udev_rules=1
verify_udev_operations=0
retry_deactivation=1
missing_stripe_filler="error"
use_linear_target=1
reserved_stack=64
reserved_memory=8192
process_priority=-18
raid_region_size=512
readahead="auto"
raid_fault_policy="warn"
mirror_log_fault_policy="allocate"
mirror_image_fault_policy="remove"
snapshot_autoextend_threshold=100
snapshot_autoextend_percent=20
thin_pool_autoextend_threshold=100
thin_pool_autoextend_percent=20
use_mlockall=0
monitoring=1
polling_interval=15
}
global {
umask=63
test=0
units="h"
si_unit_consistency=1
activation=1
proc="/proc"
locking_type=1
wait_for_locks=1
fallback_to_clustered_locking=1
fallback_to_local_locking=1
locking_dir="/var/lock/lvm"
prioritise_write_locks=1
abort_on_internal_errors=0
detect_internal_vg_cache_corruption=0
metadata_read_only=0
mirror_segtype_default="mirror"
raid10_segtype_default="mirror"
use_lvmetad=0
}
shell {
history_size=100
}
backup {
backup=1
backup_dir="/etc/lvm/backup"
archive=1
archive_dir="/etc/lvm/archive"
retain_min=10
retain_days=30
}
log {
verbose=0
silent=0
syslog=1
overwrite=0
level=0
indent=1
command_names=0
prefix=" "
debug_classes=["memory", "devices", "activation", "allocation", "lvmetad", "metadata", "cache", "locking"]
}
allocation {
maximise_cling=1
mirror_logs_require_separate_pvs=0
thin_pool_metadata_require_separate_pvs=0
}
devices {
dir="/dev"
scan="/dev"
obtain_device_list_from_udev=0
preferred_names=["^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d"]
filter="a/.*/"
cache_dir="/etc/lvm/cache"
cache_file_prefix=""
write_cache_state=1
sysfs_scan=1
multipath_component_detection=1
md_component_detection=1
md_chunk_alignment=1
data_alignment_detection=1
data_alignment=0
data_alignment_offset_detection=1
ignore_suspended_devices=0
ignore_lvm_mirrors=0
disable_after_error_count=0
require_restorefile_with_uuid=1
pv_min_size=2048
issue_discards=0
}
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