Anteriormente, eu tinha uma matriz RAID 1 funcional. Acho que, como resultado da execução de grub-install /dev/sdb e grub-install /dev/sdc , de alguma forma, limpei meu computador de md0 e md1 .
Eu preciso configurá-los novamente. Quando tento criar a matriz md0 , estou recebendo o seguinte erro.
/dev# mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sda1 missing -f
mdadm: device /dev/sda1 not suitable for any style of array
Parece que o Debian acha que a unidade já está em uma matriz, mas não é.
# fdisk -l
Disk /dev/sda: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000080
Device Boot Start End Blocks Id System
/dev/sda1 * 1 30064 241489048+ fd Linux raid autodetect
/dev/sda2 30065 30394 2650725 5 Extended
/dev/sda5 30065 30394 2650693+ fd Linux raid autodetect
# cat /proc/mdstat
Personalities : [raid1]
unused devices: <none>
EDIT: Por favor, não a saída do monte. Parece que o md0 está montado em / , mas por que não está aparecendo em proc/mdstat ?
/dev/md0 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
cat /proc/mounts
rootfs / rootfs rw 0 0
none /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
none /proc proc rw,nosuid,nodev,noexec,relatime 0 0
none /dev devtmpfs rw,relatime,size=4143896k,nr_inodes=204530,mode=755 0 0
none /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
/dev/sda1 / ext3 rw,relatime,errors=remount-ro,data=ordered 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid,relatime,mode=755 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0
file -s /dev/sda*
/dev/sda: x86 boot sector; GRand Unified Bootloader, stage1 version 0x3, stage2 address 0x2000, stage2 segment 0x200; partition 1: ID=0xfd, active, starthead 1, startsector 63, 482978097 sectors; partition 2: ID=0x5, starthead 254, startsector 482978160, 5301450 sectors, code offset 0x48, OEM-ID " м", Bytes/sector 190, sectors/cluster 124, reserved sectors 191, FATs 6, root entries 185, sectors 64514 (volumes <=32 MB) , Media descriptor 0xf3, sectors/FAT 20644, heads 6, hidden sectors 309755, sectors 2147991229 (volumes > 32 MB) , physical drive 0x7e, dos < 4.0 BootSector (0x0)
/dev/sda1: Linux rev 1.0 ext3 filesystem data, UUID=38daaa54-a108-4224-9104-016d5b4ee12c (needs journal recovery) (large files)
/dev/sda2: x86 boot sector; partition 1: ID=0xfd, starthead 254, startsector 63, 5301387 sectors, extended partition table (last)1, code offset 0x0
/dev/sda5: Linux/i386 swap file (new style), version 1 (4K pages), size 662655 pages, no label, UUID=f635267e-37f8-43d0-ad01-d25969570a8f
MAIS INFORMAÇÕES: Meu array RAID de trabalho tinha md0 e md1 com drives sdb e sdc. Eu corri os comandos grub-install . Alguns dias depois, tentei reinicializá-lo e recebi o seguinte erro (que acho que corresponde a md0 )
Gave up waiting for boot device
ALERT /dev/disk/by-uuid/38[...] does not exist
então eu desconectei meu segundo e terceiro HD e o GRUB não pôde inicializar quando definido para md0, então eu configurei para dev/sda1 e esse é o estado em que minha máquina está atualmente.
mdadm --assemble --scan -v -v
mdadm: looking for devices for /dev/md0
mdadm: /dev/sda5 has wrong uuid.
mdadm: no recogniseable superblock on /dev/sda2
mdadm: /dev/sda2 has wrong uuid.
mdadm: cannot open device /dev/sda1: Device or resource busy
mdadm: /dev/sda1 has wrong uuid.
mdadm: cannot open device /dev/sda: Device or resource busy
mdadm: /dev/sda has wrong uuid.
mdadm: looking for devices for /dev/md1
mdadm: /dev/sda5 requires wrong number of drives.
mdadm: no recogniseable superblock on /dev/sda2
mdadm: /dev/sda2 has wrong uuid.
mdadm: cannot open device /dev/sda1: Device or resource busy
mdadm: /dev/sda1 has wrong uuid.
mdadm: cannot open device /dev/sda: Device or resource busy
mdadm: /dev/sda has wrong uuid.
sfdisk -d /dev/sda
# partition table of /dev/sda
unit: sectors
/dev/sda1 : start= 63, size=482978097, Id=fd, bootable
/dev/sda2 : start=482978160, size= 5301450, Id= 5
/dev/sda3 : start= 0, size= 0, Id= 0
/dev/sda4 : start= 0, size= 0, Id= 0
/dev/sda5 : start=482978223, size= 5301387, Id=fd