How can I mount a single RAID 1 disk/partition as ext3?












6















I need to copy data from a single HD, which used to be part of a Linux RAID 1. I've googled around, but can't find any clue how to mount partitions from this single HD.



Background: The HD comes from a linux based NAS box Synology DS207+. The NAS uses ext3 as filesystem. Both NAS disks are fine, but the other NAS hardware is dead and not worth repairing or replacing.










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  • any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

    – adib
    Nov 26 '14 at 15:50
















6















I need to copy data from a single HD, which used to be part of a Linux RAID 1. I've googled around, but can't find any clue how to mount partitions from this single HD.



Background: The HD comes from a linux based NAS box Synology DS207+. The NAS uses ext3 as filesystem. Both NAS disks are fine, but the other NAS hardware is dead and not worth repairing or replacing.










share|improve this question























  • any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

    – adib
    Nov 26 '14 at 15:50














6












6








6


3






I need to copy data from a single HD, which used to be part of a Linux RAID 1. I've googled around, but can't find any clue how to mount partitions from this single HD.



Background: The HD comes from a linux based NAS box Synology DS207+. The NAS uses ext3 as filesystem. Both NAS disks are fine, but the other NAS hardware is dead and not worth repairing or replacing.










share|improve this question














I need to copy data from a single HD, which used to be part of a Linux RAID 1. I've googled around, but can't find any clue how to mount partitions from this single HD.



Background: The HD comes from a linux based NAS box Synology DS207+. The NAS uses ext3 as filesystem. Both NAS disks are fine, but the other NAS hardware is dead and not worth repairing or replacing.







linux mount raid-1 ext3






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share|improve this question











share|improve this question




share|improve this question










asked Jul 7 '11 at 12:53









Christian FunkChristian Funk

31112




31112













  • any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

    – adib
    Nov 26 '14 at 15:50



















  • any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

    – adib
    Nov 26 '14 at 15:50

















any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

– adib
Nov 26 '14 at 15:50





any idea how to do this on a Mac? I'll be needing an Ext4 driver for sure, but is there anything else that need to do to mount the formerly RAID-1 drive?

– adib
Nov 26 '14 at 15:50










2 Answers
2






active

oldest

votes


















0














An important step is to have mdadm scan for the disk prior to attempting to mount anything:



mdadm --detail --scan


I can't recall from memory but the --assemble flag may be necessary but try the above first then try mounting via:



mount /dev/md# /path/to/mount 





share|improve this answer
























  • How to install mdadm to mac os x?

    – skywinder
    Aug 31 '16 at 18:21











  • You might need to launch mdadm --run /dev/md# to start a partially assembled array

    – Saïmonn
    Jun 5 '17 at 12:32



















-1














When you only have a single part of a Raid array, it is in an incomplete state and for safety reasons, you basically have to force mount it.



There are many linux distributions, for me, in Ubuntu, I used:



 mkdir /mnt/tempdisk
sudo mount /dev/sda3 /mnt/tempdisk -o force


(replace sda3 with the hard drive)



if a *nix expert wants to down vote me, I will delete my answer as it has been a few years since I did this, and I followed a guide at the time.






share|improve this answer



















  • 3





    You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

    – Gregory MOUSSAT
    Apr 26 '12 at 17:50











  • Ext[234] has no "force" mount option, so this answer is nonsense.

    – psusi
    Apr 23 '17 at 1:54











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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














An important step is to have mdadm scan for the disk prior to attempting to mount anything:



mdadm --detail --scan


I can't recall from memory but the --assemble flag may be necessary but try the above first then try mounting via:



mount /dev/md# /path/to/mount 





share|improve this answer
























  • How to install mdadm to mac os x?

    – skywinder
    Aug 31 '16 at 18:21











  • You might need to launch mdadm --run /dev/md# to start a partially assembled array

    – Saïmonn
    Jun 5 '17 at 12:32
















0














An important step is to have mdadm scan for the disk prior to attempting to mount anything:



mdadm --detail --scan


I can't recall from memory but the --assemble flag may be necessary but try the above first then try mounting via:



mount /dev/md# /path/to/mount 





share|improve this answer
























  • How to install mdadm to mac os x?

    – skywinder
    Aug 31 '16 at 18:21











  • You might need to launch mdadm --run /dev/md# to start a partially assembled array

    – Saïmonn
    Jun 5 '17 at 12:32














0












0








0







An important step is to have mdadm scan for the disk prior to attempting to mount anything:



mdadm --detail --scan


I can't recall from memory but the --assemble flag may be necessary but try the above first then try mounting via:



mount /dev/md# /path/to/mount 





share|improve this answer













An important step is to have mdadm scan for the disk prior to attempting to mount anything:



mdadm --detail --scan


I can't recall from memory but the --assemble flag may be necessary but try the above first then try mounting via:



mount /dev/md# /path/to/mount 






share|improve this answer












share|improve this answer



share|improve this answer










answered Jun 11 '16 at 5:47









RyanHRyanH

17113




17113













  • How to install mdadm to mac os x?

    – skywinder
    Aug 31 '16 at 18:21











  • You might need to launch mdadm --run /dev/md# to start a partially assembled array

    – Saïmonn
    Jun 5 '17 at 12:32



















  • How to install mdadm to mac os x?

    – skywinder
    Aug 31 '16 at 18:21











  • You might need to launch mdadm --run /dev/md# to start a partially assembled array

    – Saïmonn
    Jun 5 '17 at 12:32

















How to install mdadm to mac os x?

– skywinder
Aug 31 '16 at 18:21





How to install mdadm to mac os x?

– skywinder
Aug 31 '16 at 18:21













You might need to launch mdadm --run /dev/md# to start a partially assembled array

– Saïmonn
Jun 5 '17 at 12:32





You might need to launch mdadm --run /dev/md# to start a partially assembled array

– Saïmonn
Jun 5 '17 at 12:32













-1














When you only have a single part of a Raid array, it is in an incomplete state and for safety reasons, you basically have to force mount it.



There are many linux distributions, for me, in Ubuntu, I used:



 mkdir /mnt/tempdisk
sudo mount /dev/sda3 /mnt/tempdisk -o force


(replace sda3 with the hard drive)



if a *nix expert wants to down vote me, I will delete my answer as it has been a few years since I did this, and I followed a guide at the time.






share|improve this answer



















  • 3





    You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

    – Gregory MOUSSAT
    Apr 26 '12 at 17:50











  • Ext[234] has no "force" mount option, so this answer is nonsense.

    – psusi
    Apr 23 '17 at 1:54
















-1














When you only have a single part of a Raid array, it is in an incomplete state and for safety reasons, you basically have to force mount it.



There are many linux distributions, for me, in Ubuntu, I used:



 mkdir /mnt/tempdisk
sudo mount /dev/sda3 /mnt/tempdisk -o force


(replace sda3 with the hard drive)



if a *nix expert wants to down vote me, I will delete my answer as it has been a few years since I did this, and I followed a guide at the time.






share|improve this answer



















  • 3





    You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

    – Gregory MOUSSAT
    Apr 26 '12 at 17:50











  • Ext[234] has no "force" mount option, so this answer is nonsense.

    – psusi
    Apr 23 '17 at 1:54














-1












-1








-1







When you only have a single part of a Raid array, it is in an incomplete state and for safety reasons, you basically have to force mount it.



There are many linux distributions, for me, in Ubuntu, I used:



 mkdir /mnt/tempdisk
sudo mount /dev/sda3 /mnt/tempdisk -o force


(replace sda3 with the hard drive)



if a *nix expert wants to down vote me, I will delete my answer as it has been a few years since I did this, and I followed a guide at the time.






share|improve this answer













When you only have a single part of a Raid array, it is in an incomplete state and for safety reasons, you basically have to force mount it.



There are many linux distributions, for me, in Ubuntu, I used:



 mkdir /mnt/tempdisk
sudo mount /dev/sda3 /mnt/tempdisk -o force


(replace sda3 with the hard drive)



if a *nix expert wants to down vote me, I will delete my answer as it has been a few years since I did this, and I followed a guide at the time.







share|improve this answer












share|improve this answer



share|improve this answer










answered Jul 7 '11 at 13:03









William HilsumWilliam Hilsum

108k16159251




108k16159251








  • 3





    You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

    – Gregory MOUSSAT
    Apr 26 '12 at 17:50











  • Ext[234] has no "force" mount option, so this answer is nonsense.

    – psusi
    Apr 23 '17 at 1:54














  • 3





    You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

    – Gregory MOUSSAT
    Apr 26 '12 at 17:50











  • Ext[234] has no "force" mount option, so this answer is nonsense.

    – psusi
    Apr 23 '17 at 1:54








3




3





You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

– Gregory MOUSSAT
Apr 26 '12 at 17:50





You don't have to force anything. Just mount the md device: "mount /dev/md1 /mnt/myfolder". The degraded array will run without any problem. But nothing garantee the Symbology use a standard Linux RAID.

– Gregory MOUSSAT
Apr 26 '12 at 17:50













Ext[234] has no "force" mount option, so this answer is nonsense.

– psusi
Apr 23 '17 at 1:54





Ext[234] has no "force" mount option, so this answer is nonsense.

– psusi
Apr 23 '17 at 1:54


















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