CedricB

Thanks for the quick reply! Just wanted to confirm that downgrading helped and the disks are all mounted now.

Hi, I seem to have the exact same problem as Vedenhenki: Yesterday, I've also built a new server with 4 brand new drives. After starting an array, only the parity drive seems to mount correctly. Formatting the other disks doesn't work and they keep throwing the error message: "Unmountable - unsupported partition layout". Removing the config and starting the array with a different disk as parity drive gives the same result (parity disk mounts, the other don't). I ran UD preclear up untill step 5/5 (pre-read, zeroed disk, writing and veryfing preclear signature all completed successfully). I paused during the post-read and tried to clear and format, but the drives still wouldn't mount. Now I resumed the post-read to see if that would help (will take 7-8h). The system log shows the same pattern as in the logs of Vedenhenki: GPT is written to a disk, then followed by a command to remove the GPT structure (sgdisk -Z)? Could be the other way round depending on how the log is produced. After that the disk can't be mounted because of an unsupported partition layout. The error thrown by root also mentions 'S#0004' instead of e.g. /dev/sdc Nov 6 11:41:09 TheLostArk emhttpd: read SMART /dev/sdd Nov 6 11:41:09 TheLostArk emhttpd: read SMART /dev/sde Nov 6 11:41:09 TheLostArk emhttpd: read SMART /dev/sdb Nov 6 11:41:09 TheLostArk emhttpd: read SMART /dev/sdc Nov 6 11:41:09 TheLostArk emhttpd: read SMART /dev/sda Nov 6 11:41:23 TheLostArk kernel: mdcmd (31): set md_num_stripes 1280 Nov 6 11:41:23 TheLostArk kernel: mdcmd (32): set md_queue_limit 80 Nov 6 11:41:23 TheLostArk kernel: mdcmd (33): set md_sync_limit 5 Nov 6 11:41:23 TheLostArk kernel: mdcmd (34): set md_write_method Nov 6 11:41:23 TheLostArk kernel: mdcmd (35): start NEW_ARRAY Nov 6 11:41:23 TheLostArk kernel: unraid: allocating 25990K for 1280 stripes (5 disks) Nov 6 11:41:23 TheLostArk kernel: md1: running, size: 3907018532 blocks Nov 6 11:41:23 TheLostArk kernel: md2: running, size: 3907018532 blocks Nov 6 11:41:23 TheLostArk kernel: md3: running, size: 3907018532 blocks Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45723): udevadm settle Nov 6 11:41:23 TheLostArk emhttpd: writing GPT on disk (sdb), with partition 1 byte offset 32KiB, erased: 0 Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45724): sgdisk -Z /dev/sdb Nov 6 11:41:23 TheLostArk root: Problem opening S#004 for reading! Error is 2. Nov 6 11:41:23 TheLostArk root: The specified file does not exist! Nov 6 11:41:23 TheLostArk root: Warning! Unable to generate a proper UUID! Creating an improper one as a last Nov 6 11:41:23 TheLostArk root: resort! Windows 7 may crash if you save this partition table!#007 Nov 6 11:41:23 TheLostArk root: Problem opening '' for writing! Program will now terminate. Nov 6 11:41:23 TheLostArk root: Warning! MBR not overwritten! Error is 2! Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45724): exit status: 2 Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45725): sgdisk -o -a 8 -n 1:32K:0 /dev/sdb Nov 6 11:41:23 TheLostArk root: The specified file does not exist! Nov 6 11:41:23 TheLostArk root: Warning! Unable to generate a proper UUID! Creating an improper one as a last Nov 6 11:41:23 TheLostArk root: resort! Windows 7 may crash if you save this partition table!#007 Nov 6 11:41:23 TheLostArk root: Information: Creating fresh partition table; will override earlier problems! Nov 6 11:41:23 TheLostArk root: Caution! Secondary header was placed beyond the disk's limits! Moving the Nov 6 11:41:23 TheLostArk root: header, but other problems may occur! Nov 6 11:41:23 TheLostArk root: Unable to open device '' for writing! Errno is 2! Aborting write! Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45725): exit status: 4 Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45726): udevadm settle Nov 6 11:41:23 TheLostArk emhttpd: Opening encrypted volumes... Nov 6 11:41:23 TheLostArk emhttpd: shcmd (45730): touch /boot/config/forcesync Nov 6 11:41:23 TheLostArk preclear.disk: Resuming preclear of disk 'sdc' Nov 6 11:41:23 TheLostArk preclear.disk: Resuming preclear of disk 'sdb' Nov 6 11:41:23 TheLostArk preclear.disk: Resuming preclear of disk 'sde' Nov 6 11:41:23 TheLostArk preclear.disk: Resuming preclear of disk 'sdd' Nov 6 11:41:23 TheLostArk emhttpd: Mounting disks... Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45732): mkdir -p /mnt/disk1 Nov 6 11:41:24 TheLostArk emhttpd: /mnt/disk1 mount error: Unsupported partition layout Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45733): umount /mnt/disk1 Nov 6 11:41:24 TheLostArk root: umount: /mnt/disk1: not mounted. Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45733): exit status: 32 Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45734): rmdir /mnt/disk1 Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45735): mkdir -p /mnt/disk2 Nov 6 11:41:24 TheLostArk emhttpd: /mnt/disk2 mount error: Unsupported partition layout Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45736): umount /mnt/disk2 Nov 6 11:41:24 TheLostArk root: umount: /mnt/disk2: not mounted. Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45736): exit status: 32 Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45737): rmdir /mnt/disk2 Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45738): mkdir -p /mnt/disk3 Nov 6 11:41:24 TheLostArk emhttpd: /mnt/disk3 mount error: Unsupported partition layout Nov 6 11:41:24 TheLostArk emhttpd: shcmd (45739): umount /mnt/disk3 Nov 6 11:41:24 TheLostArk root: umount: /mnt/disk3: not mounted. thelostark-diagnostics-20221106-1213.zip