How do I find out what's using an unmounted raid device?
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I'm trying to resize a 14-TB ext4 partition on a device in a raid 5 configuration. Unfortunately, the current partition is set to 32-bit mode, so I am trying to change it per the answer in https://askubuntu.com/questions/779754/how-do-i-resize-an-ext4-partition-beyond-the-16tb-limit.
Unfortunately, after the umount, e2fsck claims that the device is still in use. I've shut down every service on the machine other than ssh, lsof shows nothing in use. How can I determine what is still using the device?
Actual commands:
root@minerva:~# lsof | grep /dev/md0
root@minerva:~# e2fsck -fn /dev/md0
e2fsck 1.43.8 (1-Jan-2018)
Warning! /dev/md0 is in use.
mdadm block-device
asked Jan 14 at 4:59
TheDauthi
215
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I'm trying to resize a 14-TB ext4 partition on a device in a raid 5 configuration. Unfortunately, the current partition is set to 32-bit mode, so I am trying to change it per the answer in https://askubuntu.com/questions/779754/how-do-i-resize-an-ext4-partition-beyond-the-16tb-limit.
Unfortunately, after the umount, e2fsck claims that the device is still in use. I've shut down every service on the machine other than ssh, lsof shows nothing in use. How can I determine what is still using the device?
Actual commands:
root@minerva:~# lsof | grep /dev/md0
root@minerva:~# e2fsck -fn /dev/md0
e2fsck 1.43.8 (1-Jan-2018)
Warning! /dev/md0 is in use.
mdadm block-device
asked Jan 14 at 4:59
TheDauthi
215
1
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19
add a comment |Â
up vote
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down vote
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up vote
0
down vote
favorite
I'm trying to resize a 14-TB ext4 partition on a device in a raid 5 configuration. Unfortunately, the current partition is set to 32-bit mode, so I am trying to change it per the answer in https://askubuntu.com/questions/779754/how-do-i-resize-an-ext4-partition-beyond-the-16tb-limit.
Unfortunately, after the umount, e2fsck claims that the device is still in use. I've shut down every service on the machine other than ssh, lsof shows nothing in use. How can I determine what is still using the device?
Actual commands:
root@minerva:~# lsof | grep /dev/md0
root@minerva:~# e2fsck -fn /dev/md0
e2fsck 1.43.8 (1-Jan-2018)
Warning! /dev/md0 is in use.
mdadm block-device
asked Jan 14 at 4:59
TheDauthi
215
I'm trying to resize a 14-TB ext4 partition on a device in a raid 5 configuration. Unfortunately, the current partition is set to 32-bit mode, so I am trying to change it per the answer in https://askubuntu.com/questions/779754/how-do-i-resize-an-ext4-partition-beyond-the-16tb-limit.
Unfortunately, after the umount, e2fsck claims that the device is still in use. I've shut down every service on the machine other than ssh, lsof shows nothing in use. How can I determine what is still using the device?
Actual commands:
root@minerva:~# lsof | grep /dev/md0
root@minerva:~# e2fsck -fn /dev/md0
e2fsck 1.43.8 (1-Jan-2018)
Warning! /dev/md0 is in use.
mdadm block-device
asked Jan 14 at 4:59
TheDauthi
215
edited Jan 15 at 2:07
asked Jan 14 at 4:59
TheDauthi
215
asked Jan 14 at 4:59
TheDauthi
215
asked Jan 14 at 4:59
TheDauthi
215
215
1
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19
add a comment |Â
1
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19
1
1
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19
add a comment |Â
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1
Can you put the actual command line you ran and the exact output from the command into your question?
– BowlOfRed
Jan 14 at 7:19