29 lines
1.7 KiB
Plaintext
29 lines
1.7 KiB
Plaintext
extends article.pug
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block article
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header
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h2 How to move a root from SD card to external drive on Raspberry Pi
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div.menu
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a(href='/stuff#articles') Go back to articles list
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time(datetime='2020-08-15') 15 August 2020
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nav
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h3 Contents
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ol
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li #[a(href='#art-1') Introduction]
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li #[a(href='#art-2') Moving / to an external drive]
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ol
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li #[a(href='#art-2-1') If you're doing a fresh install]
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li #[a(href='#art-3') cmdline.txt]
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h3#art-1 #[a(href='#art-1') 1. Introduction]
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p Raspberry Pi is known for how it wears off the SD cards. Thankfully you can move the root off the SD card to an external drive and leave there just a boot partition. I'm gonna use a #[s SystemD]GNU/Linux distribution for that.
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h3#art-2 #[a(href='#art-2') 2. Moving / to an external drive]
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p I assume that you have your drive partitioned already. Create the temporary directories for a SD card's boot and root partitions and for a drive. Mount the partitions and issue a command #[code cp -a path/to/sdcard/root/* path/to/drive]. #[code -a] stands for archive. Which recursively copies everything preserving all the attributes and links.
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h3#art-2-1 #[a(href='#art-2-1') 2.1. If you're doing a fresh install]
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p Then you just install it right on a drive. And then move files from #[code /boot] to a SD card's boot partition. Like that: #[code mv path/to/boot/* path/to/sdcard]. Keep in mind that the boot partition should be formatted in FAT32.
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h3#art-3 3. #[a(href='#art-3') cmdline.txt]
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p In a #[code cmdline.txt.] file we need to change #[code root=] part. Now it'll look like #[code root=/dev/mmcblk0p2 rw rootwait], and we need to put our drive's root partition instead of that, e.g. #[code root=/dev/sda1 rw rootwait].
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