Home Lab - Odd Issue

DustinB3403

Well something happened to the USB drive that was throwing the error.

At power up the system couldn't even find the drive to boot from.

I've reformatted the usb disk, and am installing to yet another one. I'll keep you all informed.

DustinB3403

Format to FAT32 and install seems to have corrected the issue.

DustinB3403

OK so it would appear, that the RAID is orphaned from the Host OS, which makes perfect sense.

How can I go about deleting the orphaned storage, or just formatting the entire raid from within Xen?

scottalanmiller

@DustinB3403 said:

OK so it would appear, that the RAID is orphaned from the Host OS, which makes perfect sense.

How can I go about deleting the orphaned storage, or just formatting the entire raid from within Xen?

You should be able to attach it again.

DustinB3403

Any recommendations as to how, reading everything from online is not only vague, but often misleading

scottalanmiller

What does...

cat /proc/mdstat

tell you?

DustinB3403

When I try to recreate the filesystem using

pvcreate /dev/cciss/c0d0p1
 Can't open /dev/cciss/c0d0p1 exclusively.  Mounted filesystem?

That is what I receive.

DustinB3403

Attempting to perform the below:

# xe sr-create content-type=user type=ext device-config:device=/dev/cciss/c0d0p1 shared=false name-label="Local Storage"
The SR operation cannot be performed because a device underlying the SR is in use by the host.

scottalanmiller

@DustinB3403 said:

When I try to recreate the filesystem using
pvcreate /dev/cciss/c0d0p1
 Can't open /dev/cciss/c0d0p1 exclusively.  Mounted filesystem?
That is what I receive.

Wait, do you have hardware RAID or software RAID?

DustinB3403

Performing a fdisk -l results in:

# fdisk -l

WARNING: GPT (GUID Partition Table) detected on '/dev/cciss/c0d0'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/cciss/c0d0: 440.3 GB, 440346238976 bytes
256 heads, 63 sectors/track, 53326 cylinders
Units = cylinders of 16128 * 512 = 8257536 bytes

  Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1   *           1       53327   430025623+  ee  EFI GPT

Disk /dev/sda: 8074 MB, 8074035200 bytes
2 heads, 63 sectors/track, 125155 cylinders
Units = cylinders of 126 * 512 = 64512 bytes

Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1      125156     7884768    b  W95 FAT32

scottalanmiller

That looks like an HP SmartArray controller.

scottalanmiller

@DustinB3403 said:

You're running a lot of commands but not answering any questions

DustinB3403

It is an HP Smart Array, in a DL360 G5

scottalanmiller

@DustinB3403 said:

It is an HP Smart Array, in a DL360 G5

Ah, okay. So that makes this a lot easier.

scottalanmiller

What do these commands say...

df -h

and

lvs

DustinB3403

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p1 4.0G 1.8G 2.0G 47% /
none 932M 20K 932M 1% /dev/shm
/opt/xensource/packages/iso/XenCenter.iso
56M 56M 0 100% /var/xen/xc-install

And

lvs
  No volume groups found

scottalanmiller

You appear to be booted into the RAID array. Your root filesystem is located there.

scottalanmiller

You are running from the RAID, as @Dashrender hypothesized, not from the USB stick.

DustinB3403

hrm... that's very odd....

DustinB3403

I performed the identical installation as I have previously, and the OS was installed to the USB drive.