orlp

int64_t ipow(int64_t base, uint8_t exp) {
    static const uint8_t highest_bit_set[] = {
        0, 1, 2, 2, 3, 3, 3, 3,
        4, 4, 4, 4, 4, 4, 4, 4,
        5, 5, 5, 5, 5, 5, 5, 5,
        5, 5, 5, 5, 5, 5, 5, 5,
        6, 6, 6, 6, 6, 6, 6, 6,
        6, 6, 6, 6, 6, 6, 6, 6,
        6, 6, 6, 6, 6, 6, 6, 6,
        6, 6, 6, 6, 6, 6, 6, 255, // anything past 63 is a guaranteed overflow with base > 1

inequation

Having painstakingly performed the operation of migrating dual-boot systems to SSDs (without a fresh install of any of the systems) twice in the recent days, I've decided to write the steps down in case I ever need to repeat it. It may also benefit someone else on the internet. This is the most efficient and least error-prone workflow to the best of my knowledge, and discovering it was not as easy as it may seem.

Please excuse the somewhat short-hand form of this guide; I take the liberty to assume the reader is a power-user and is at least familiar with Linux.

The scenario

Here are the specific conditions I worked under:

• Dual-boot, Linux/Windows system.
• MBR partition tables.