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Hello, |
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I have a ~250 gig sata disk I want to migrate to a 2T |
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Sata disk. This is simple, but, I have a few caveats. |
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old disk: |
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Disk /dev/sda: 320.1 GB, 320072933376 bytes |
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255 heads, 63 sectors/track, 38913 cylinders |
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Units = cylinders of 16065 * 512 = 8225280 bytes |
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Sector size (logical/physical): 512 bytes / 512 bytes |
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I/O size (minimum/optimal): 512 bytes / 512 bytes |
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Disk identifier: 0x000a1ff7 |
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|
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Device Boot Start End Blocks Id System |
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/dev/sda1 * 1 6405 51448131 7 HPFS/NTFS |
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/dev/sda2 6406 6431 208845 83 Linux |
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/dev/sda3 6432 14080 61440592+ 83 Linux |
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/dev/sda4 14081 38913 199471072+ 5 Extended |
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/dev/sda5 14081 14861 6273351 82 Linux swap / Solaris |
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/dev/sda6 14862 26335 92164873+ 83 Linux |
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/dev/sda7 26336 38913 101032753+ 83 Linux |
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/dev/sda2 /boot reiserfs defaults 1 2 |
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/dev/sda3 / reiserfs defaults 0 1 |
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/dev/sda5 none swap sw 0 0 |
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/dev/sda6 /usr/local reiserfs defaults 0 1 |
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/dev/sda7 /usr/local/video reiserfs defaults 0 1 |
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none /proc proc defaults 0 0 |
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none /dev/shm tmpfs defaults 0 0 |
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/dev/fd0 /mnt/floppy vfat noauto,user,umask=000 0 0 |
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#/dev/fd0 /mnt/floppy auto noauto, 0 0 |
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/dev/cdrom /mnt/cdrom auto noauto,rw,user 0 0 |
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#/dev/sda1 /mnt/windows ntfs-3g 0 0 |
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Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes |
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255 heads, 63 sectors/track, 243201 cylinders |
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Units = cylinders of 16065 * 512 = 8225280 bytes |
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Sector size (logical/physical): 512 bytes / 512 bytes |
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I/O size (minimum/optimal): 512 bytes / 512 bytes |
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Disk identifier: 0x5f61c272 |
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|
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Device Boot Start End Blocks Id System |
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<needs formatting and file systems installed> |
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OK, so I format using fdisk <no big deal> |
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<new disk will just have /(200G), swap, boot(250M) and one |
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bit fat /usr/local (1.8T) |
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Ok now I was going to use same reiserfs < no big deal> |
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unless I can use reiser4? good idea? <discuss-caveats> |
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OK now I want the new fstab to use disklabels |
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<old dog learning new trick here> |
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like this simple (few) partition scheme: |
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/dev/sdb3 200G 52G 42G 55% / |
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udev 10M 224K 9.8M 3% /dev |
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/dev/sdb1 250M 47M 189M 20% /boot |
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/dev/sdb4 1800G 125G 12G 92% /usr/local |
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Current <non disklabel fstab> |
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/dev/sda1 /boot reiserfs defaults 1 2 |
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/dev/sda2 none swap sw 0 0 |
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/dev/sda3 / reiserfs defaults 0 1 |
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/dev/sda4 /usr/local reiserfs defaults 0 1 |
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/dev/cdrom /mnt/cdrom auto noauto,ro,user 0 0 |
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/dev/fd0 /mnt/floppy vfat noauto,user,umask=000 0 0 |
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shm /dev/shm tmpfs nodev,nosuid,noexec 0 0 |
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none /proc proc defaults 0 0 |
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so what does new fstab using disk labels look like? |
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Last, just dd it over like this? |
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dd if=/dev/sda of=/dev/sdb bs=32768 |
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What did I miss? |
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Discussion, corrections or caveats are most welcome. |
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