69 lines
1.1 KiB
Markdown
69 lines
1.1 KiB
Markdown
# Creating a bootable USB UEFI stick
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## Identify the drive
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Insert your USB stick and tail /var/log/message to find out the device name.
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Then set the device name in a variable
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```
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DRIVE=/dev/sdc
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```
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## Initial formatting of the USB stick
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This is a one-time operation. When updating the USB stick
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this step can be skipped.
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Formatting:
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* gpt partition table
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* primary partition of type ext2
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* primary partition of type EFI (EF)
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* label /dev/sdc1 as RESCUE
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```
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parted ${DRIVE}
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```
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Create partitions in parted:
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```
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mktable gpt
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mkpart primary ext2 1 512MB
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mkpart primary fat32 512MB 1024MB
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set 2 boot on
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```
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Format the partitions:
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```
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mkfs.ext2 ${DRIVE}1 # this will contain the images.
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mkfs.vfat ${DRIVE}2 # this will contain the UEFI bootloader and grub.cfg
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e2label ${DRIVE}1 RESCUE # label the partition
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```
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## Synchronize files to the USB stick
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Sync images:
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```
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mount ${DRIVE}1 /mnt/tmp
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mkdir -p /mnt/tmp/images
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rsync -av images/ /mnt/tmp/images/
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umount /mnt/tmp
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```
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Sync the grub configuration:
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```
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mount ${DRIVE}2 /mnt/tmp
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mkdir -p /mnt/tmp/EFI
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rsync -av EFI/ /mnt/tmp/EFI/
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umount /mnt/tmp
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```
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