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Thanks to all of you who have tried to help. |
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Unfortunately, I am still lost. |
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|
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I just want to run Gentoo on my system, and the new drive is just for |
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backup, i.e. it needn't be bootable. |
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|
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I have zeroed the first 8 MB and then I used gdisk |
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gdisk still notes that there is a backup GPT. I opted to created a new |
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blank GPT. |
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Then I created 4 partitions. |
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I have used the w(rite) command before exiting gdisk. |
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Starting gdisk again, it shows the 4 partitions. |
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But, after a 'sync' command I detached and re-attached the drive and I |
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get partially strange |
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output from dmesg : |
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|
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|
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[ 2225.690410] usb 9-1: New USB device found, idVendor=0bc2, |
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idProduct=ab34 |
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[ 2225.690418] usb 9-1: New USB device strings: Mfr=2, Product=3, |
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SerialNumber=1 |
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[ 2225.690423] usb 9-1: Product: Backup+ Desk |
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[ 2225.690426] usb 9-1: Manufacturer: Seagate |
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[ 2225.690430] usb 9-1: SerialNumber: NA7EV58E |
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[ 2225.692007] usb-storage 9-1:1.0: USB Mass Storage device detected |
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[ 2225.692167] scsi host8: usb-storage 9-1:1.0 |
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[ 2226.693728] scsi 8:0:0:0: Direct-Access Seagate Backup+ |
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Desk 040B PQ: 0 ANSI: 6 |
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[ 2226.694322] sd 8:0:0:0: Attached scsi generic sg5 type 0 |
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[ 2226.696829] sd 8:0:0:0: [sde] Spinning up disk... |
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16 # dmesg | tail |
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[ 2240.741282] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.741400] sd 8:0:0:0: [sde] 9767541167 512-byte logical blocks: |
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(5.00 TB/4.55 TiB) |
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[ 2240.741405] sd 8:0:0:0: [sde] 2048-byte physical blocks |
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[ 2240.791085] sd 8:0:0:0: [sde] Write Protect is off |
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[ 2240.791096] sd 8:0:0:0: [sde] Mode Sense: 4f 00 00 00 |
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[ 2240.791853] sd 8:0:0:0: [sde] Write cache: enabled, read cache: |
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enabled, doesn't support DPO or FUA |
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[ 2240.792897] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.832400] sde: sde1 |
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[ 2240.832943] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.835581] sd 8:0:0:0: [sde] Attached SCSI disk |
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17 # dmesg | tail |
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[ 2240.741282] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.741400] sd 8:0:0:0: [sde] 9767541167 512-byte logical blocks: |
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(5.00 TB/4.55 TiB) |
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[ 2240.741405] sd 8:0:0:0: [sde] 2048-byte physical blocks |
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[ 2240.791085] sd 8:0:0:0: [sde] Write Protect is off |
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[ 2240.791096] sd 8:0:0:0: [sde] Mode Sense: 4f 00 00 00 |
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[ 2240.791853] sd 8:0:0:0: [sde] Write cache: enabled, read cache: |
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enabled, doesn't support DPO or FUA |
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[ 2240.792897] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.832400] sde: sde1 |
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[ 2240.832943] sd 8:0:0:0: [sde] Very big device. Trying to use READ |
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CAPACITY(16). |
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[ 2240.835581] sd 8:0:0:0: [sde] Attached SCSI disk |
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|
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and only /dev/sde and /dev/sde1 are visible. |
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|
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Where are the other partitions - or am I missing a kernel option. |
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That is my first drive bigger than 3 TB. |
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|
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Many thanks for your help, |
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Helmut |
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