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#1 2015-10-17 02:13:25
- namae
- Member
- Registered: 2014-05-02
- Posts: 15
cant Boot with mdRaid partitions
After Grub loads and start to boot into Arch I am 'greeted' with
ERROR: Unable to find root device 'UUID=c8abcc04-b45e-4ed3-bace-16d599588b58'.
this is my output from lsblk -f
the drive is GPT
Edit: also its RAID5
and I know having a seperate /usr partition is bad/redundant/etc in most cases but this is for a router so I want it read-only
# lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1 <---EF02
├─sda2 swap 90924648-e64a-452e-82fe-60601306a4fc
├─sda3 linux_raid_memb archiso:0 7edc6ba1-c93c-8f97-5397-abebd1785b80
│ └─md0 btrfs 945a2203-9879-4deb-afe3-7ce37e603745 /usr
├─sda4 linux_raid_memb archiso:0 7edc6ba1-c93c-8f97-5397-abebd1785b80
│ └─md0 btrfs 945a2203-9879-4deb-afe3-7ce37e603745 /usr
├─sda5 linux_raid_memb archiso:1 056eb716-171b-e7e1-9724-58514b021599
│ └─md1 btrfs c8abcc04-b45e-4ed3-bace-16d599588b58 /
├─sda6 linux_raid_memb archiso:1 056eb716-171b-e7e1-9724-58514b021599
│ └─md1 btrfs c8abcc04-b45e-4ed3-bace-16d599588b58 /
└─sda7 btrfs bd3bb839-bf51-4943-9ed5-f495688db60f /var
sdb iso9660 ARCH_201510 2015-10-01-17-08-02-00
├─sdb1 iso9660 ARCH_201510 2015-10-01-17-08-02-00 /run/archiso/bootmnt
└─sdb2 vfat ARCHISO_EFI 8322-6EAF
loop0 squashfs /run/archiso/sfs/airootfshere is the grub entry
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-c8abcc04-b45e-4ed3-bace-16d599588b58' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt gpt
insmod diskfilter mdraid1x raid5rec
insmod btrfs
set root='mduuid/056eb716171be7e1972458514b021599'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='mduuid/056eb716171be7e1972458514b02159' c8abcc04-b45e-4ed3-bace-16d599588b58
else
search --no-floppy --fs-uuid --set=root c8abcc04-b45e-4ed3-bace-16d599588b58
fi
echo 'Loading Linux linux-lts ...'
linux /boot/vmlinuz-linux-lts root=UUID=c8abcc04-b45e-4ed3-bace-16d599588b58 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux-lts.img
}I tried 'insmod mdraid' as-per the wiki aswell
Also I tried SYSLINUX but the BIOS gave 'no boot device found' so I gave up on that
Last edited by namae (2015-10-17 03:37:46)
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#2 2015-10-18 09:14:52
- byte
- Member
- From: Düsseldorf (DE)
- Registered: 2006-05-01
- Posts: 2,046
Re: cant Boot with mdRaid partitions
Output of 'mdadm -vbD /dev/md0' (md1) and 'gdisk -l /dev/sda'?
And what's the reason for having RAID on a single disk?
1000
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#3 2015-10-18 19:42:37
- namae
- Member
- Registered: 2014-05-02
- Posts: 15
Re: cant Boot with mdRaid partitions
Im kind of impatient so I wiped the Drive and started over with Raid 1
I am still having the same problem
# lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1
├─sda2 linux_raid_memb archiso:0 69dba108-25aa-0cff-2fba-8a2d827d79d0
│ └─md0 btrfs 1460b394-1ce5-4f67-9066-e0b76ff36620
├─sda3 linux_raid_memb archiso:0 69dba108-25aa-0cff-2fba-8a2d827d79d0
│ └─md0 btrfs 1460b394-1ce5-4f67-9066-e0b76ff36620
├─sda4 swap 3267c854-f3af-44bb-a641-62243b965360
├─sda5 linux_raid_memb archiso:1 1e5bb6d0-6f01-75a4-0ebc-af131c9d9f2b
│ └─md1 btrfs 8e71cc43-e6e1-486a-8036-1ef92333cfee
├─sda6 linux_raid_memb archiso:1 1e5bb6d0-6f01-75a4-0ebc-af131c9d9f2b
│ └─md1 btrfs 8e71cc43-e6e1-486a-8036-1ef92333cfee
└─sda7 btrfs 9a7cc5cb-e964-4032-92e0-5522322927d7
sdb iso9660 ARCH_201510 2015-10-01-17-08-02-00
├─sdb1 iso9660 ARCH_201510 2015-10-01-17-08-02-00 /run/archiso/bootmnt
└─sdb2 vfat ARCHISO_EFI 8322-6EAF
sr0 iso9660 ASUS 2013-08-14-18-30-00-00
loop0 squashfs /run/archiso/sfs/airootfs# mdadm -vbD /dev/md0
ARRAY /dev/md0 level=raid1 num-devices=2 metadata=1.2 name=archiso:0 UUID=69dba108:25aa0cff:2fba8a2d:827d79d0
devices=/dev/sda2,/dev/sda3
# mdadm -vbD /dev/md1
ARRAY /dev/md1 level=raid1 num-devices=2 metadata=1.2 name=archiso:1 UUID=1e5bb6d0:6f0175a4:0ebcaf13:1c9d9f2b
devices=/dev/sda5,/dev/sda6# gdisk -l /dev/sda
GPT fdisk (gdisk) version 1.0.0
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 390721968 sectors, 186.3 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 1F2E6578-8282-419D-B48B-BC0A00B56FEE
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 390721934
Partitions will be aligned on 2048-sector boundaries
Total free space is 227135853 sectors (108.3 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 10239 4.0 MiB EF02
2 10240 31467519 15.0 GiB 8300
3 31467520 62924799 15.0 GiB 8300
4 62924800 69216255 3.0 GiB 8200
5 69216256 100673535 15.0 GiB 8300
6 100673536 132130815 15.0 GiB 8300
7 132130816 163588095 15.0 GiB 8300 As for the Reason to have Raid on a single disk:
the disk is Old ...so probablity of failure or bad sectors is high
my only other spare disk is a 2TB i would rather not use for a router situation
Last edited by namae (2015-10-18 19:43:26)
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#4 2015-10-20 22:51:43
- madman_xxx
- Member
- From: PL
- Registered: 2013-07-31
- Posts: 35
Re: cant Boot with mdRaid partitions
This looks oddly similar to https://bbs.archlinux.org/viewtopic.php?id=189845
Last edited by madman_xxx (2015-10-20 23:29:42)
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