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On Saturday 14 August 2010, Adam Carter wrote: |
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> This is to backup my laptop from boot cdrom - how does it look? |
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> |
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> File systems; |
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> /dev/sda1 - /boot |
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> /dev/sda2 - swap |
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> /dev/sda3 - / |
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> |
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> So to backup; |
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> 1. Get MBR (grub and partition table): dd if=/dev/sda |
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> of=/otherdisk/sda-mbr.bin bs=512 count=1 |
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> 2. Get /boot: dd if=/dev/sda1 of=/otherdisk/sda1.bin |
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> 3. Get /: dd if=/dev/sda3 | gzip | dd of=/otherdisk/sda3.bin.gz |
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> |
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> Then too restore onto new disk; |
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> 1. Restore MBR: dd if=/otherdisk/sda-mbr.bin of=/dev/sda |
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> - no bs or count parameters required? |
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> 2. Restore /boot: dd if=/otherdisk/sda1.bin of=/dev/sda1 |
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> 3. Restore /: dd if=/otherdisk/sda3.bin.gz | gunzip | dd of=/dev/sda3 |
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> 4. Setup swap partition: mkswap /dev/sda2 |
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> 5. Boot system |
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> |
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> Caveat is the the new disk must be big enough to fit sda1/2/3. |
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why backup mbr? installing grub takes less time then the backup and restore of |
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the mbr. |
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And dd for backups? Why wasting space? Why suffering from problems when the new |
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harddisk has a different size? |
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Just tar up everything. |
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