mdadm : po restaru zmizelo pole ale system jede

Potreboval jsem vymenit disky v Raid 1 poli. Mel jsem /dev/md0 (/dev/sda1+/dev/sdb1) a /dev/md1 (/dev/sda2+/dev/sdb2) Pridal jsem /dev/sdc1+/dev/sdd1 do /dev/md0 a /dev/sdc2+/dev/sdd2 do /dev/md1

mdadm -a /dev/sdc1 /dev/md0 mdadm --grow --raid-devices=4 /dev/md0

analogicky pro dalsi 3 disky

pote jsem pockal na synchronizaci a stare disky z poli vyhodil

mdadm -f /dev/sda1 /dev/md0 mdadm -r /dev/sda1 /dev/md0 mdadm --grow --raid-devices=2 /dev/md0

analogicky pro dalsi 3 disky

pote jsem nainstaloval grub a rebootnul

Situace je nasledujici (a to uplne spatna) :

Grub nabehne z noveho disku (to je spravne) Pak ale nenajde root a hodi me do BusyBoxu

Pokud nastavim root na UUID stareho pole tak : Grub nabehne z noveho disku Mountne root filesystem ze stareho disku

Pole /dev/md0 neni v /dev, ale mountnute je

# ls /dev/md0 ls: nelze pistoupit k /dev/md0:

#mount /dev/md0 on / type ext3 (rw,noatime,errors=remount-ro) /dev/md1 on /home type ext3 (rw)

#cat /proc/mdstat Personalities : [raid1] md1 : active raid1 sdc2[0] sdd2[1] 24410688 blocks [2/2] [UU] unused devices: none

#blkid /dev/sda3: TYPE="swap" UUID="9d7376c5-fedf-4b8d-b7da-7327cb997dd0" /dev/sdb1: UUID="905a5b24-e167-0183-34f6-2697983a55bf" TYPE="linux_raid_member" /dev/sdb3: TYPE="swap" UUID="92883cc2-e664-4e00-b222-3c75ef081718" /dev/md1: UUID="a2c6684f-89fb-4e0d-aeb3-dd365cc9ff63" TYPE="ext3" SEC_TYPE="ext2" /dev/sdc1: UUID="905a5b24-e167-0183-34f6-2697983a55bf" TYPE="linux_raid_member" /dev/sdc2: UUID="06fe69a7-ddd7-c786-ba87-caa4a8ff627a" TYPE="linux_raid_member" /dev/sdd1: UUID="905a5b24-e167-0183-34f6-2697983a55bf" TYPE="linux_raid_member" /dev/sdd2: UUID="06fe69a7-ddd7-c786-ba87-caa4a8ff627a" TYPE="linux_raid_member" /dev/sda1: UUID="49d89705-331d-40e6-8312-29499172faa9" TYPE="ext3" /dev/sda2: UUID="a2c6684f-89fb-4e0d-aeb3-dd365cc9ff63" SEC_TYPE="ext2" TYPE="ext3" /dev/sdb2: UUID="a2c6684f-89fb-4e0d-aeb3-dd365cc9ff63" SEC_TYPE="ext2" TYPE="ext3" /dev/sdc3: UUID="7eba368d-0ea4-41bf-b52c-a1686b90e400" TYPE="swap" /dev/sdd3: UUID="0906b878-6481-4345-88c9-ae8058fe1515" TYPE="swap"

Takze :

- pole /dev/md1 je vporadku - pole /dev/md0 je rozbite - mdadm nevidi /dev/md0 ani nevim jestli je pripojeny jeden disk, nebo oba. V logu jsem o md0 nasel pouze toto :

mdadm[21447]: DeviceDisappeared event detected on md device /dev/md0

muzete mi poradit ?

Dotaz: mdadm : po restaru zmizelo pole ale system jede