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On 02/21/2014 01:13 PM, Francisco Ares wrote: |
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> Hi, |
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> |
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> I need to create a bootable flash stick, preferably using already |
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> working Gentoo system (or at least most of it), which was tailored for |
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> an embedded system. |
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> |
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> Already googled around, but I would like to know if anyone has already |
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> succeeded on this. |
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> |
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> Thanks |
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> Francisco |
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what I do is this: |
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1. make your usb stick an PV of your existing LVM volumegroup |
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2. create a small boot LV |
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3. install grub2 into the boot LV and onto the boot sector of the usb stick |
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4. insert stick into live running system |
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5. lvm convert running system LV into a mirror with one part of the |
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mirror on the stick. if it's already a mirror make it a 3way etc |
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6. when done, split the mirror |
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7. rename the usb into a different volumegroup, called backup for |
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example, and rename the LV to something sensible |
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8. configure grub on the usb to boot gentoo from the volume group |
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backup, root partition |
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9. eject the usb stick and plug into your other device |
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10. boot from the usb stick |
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11. repeat the mirror steps this time going onto the SD/hard drive of |
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the new device |
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LVM ftw |
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