I have a iSCSI target on a customer place I'm using from an old Fedora (Core6) server. I configured it and formatted as ext3 (mistake, now I know) and I've been working with it for some time.
Now I need to access this volume from other machine. As far as I've read, I can't do it safely from two machines at the same time (yep, that's the first thing I tried). So I've umount it from original server and tried to mount it on the new server (I did it at first with Ubuntu 10 LTS but when I was unable to do it I installed another Fedora with the same configuration) with no success.
The problem: I can see all target on NAS but when I do a "fdisk -l" to see all devices and know which mount I see all targets as SFS filesystem. From the original server I see all SFS (after all, they belong to my customer and don't know what he have in) except the one I manage which I see as 'Linux'.
Here it is the partition table as seen in the server (Fedora) which see it right. Spanish language, sorry. I hope it can be understood. My comments between […]
[.. at beginning the real local drive ..] Disco /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cilindros of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000080 Disposit. Inicio Comienzo Fin Bloques Id Sistema /dev/sda1 1 26 204800 83 Linux /dev/sda2 26 6400 51200000 83 Linux [.. more local partitions ..] [... then iSCSI drives ...] Disposit. Inicio Comienzo Fin Bloques Id Sistema /dev/sdc1 1 130541 1048570551 42 SFS Disco /dev/sdf: 2147.5 GB, 2147483649024 bytes 255 heads, 63 sectors/track, 261083 cylinders Units = cilindros of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x2257d76f [..... Other devices in between, and here it is the one I mind .....] Disco /dev/sde: 2147.5 GB, 2147483648000 bytes 255 heads, 63 sectors/track, 261083 cylinders Units = cilindros of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 262144 bytes Disk identifier: 0x93afd446 Disposit. Inicio Comienzo Fin Bloques Id Sistema /dev/sde1 1 261083 2097149166 83 Linux [ .... and ever more devices ....]
On the machine I'm trying to configure, the one which should access the drive (but don't) I see the offending target as:
[....]
Disk /dev/sdc: 2147.4 GB, 2147483649024 bytes
255 heads, 63 sectors/track, 261083 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 261083 2097149166 42 SFS
[....]
And I see rest of targets as SFS, the same as in first case.
Thank you in advanced,
Best Answer
fdisk reported labels don't mean much nowadays -- in fact as MS-DOS partition tables fall out of use, it even can be entirely misleading. If you want to know what's on a partition, better use
file -s /dev/sdXX: