Hi!
On the Remastering instructions they state that if you have less than 1GB of memory then you need to use a 750MB swap file.
My experience was that the limit is 2GB and not 1GB.
If you only have 1 GB of memory then you'll want a 1GB swap file.
When I monitored memory using top the total memory used went to 1.8GB of RAM.
If you do not have enough RAM then your bootable disk will fail in very weird ways.
SanDisk 128GB Ultra Flair USB 3.0 Flash Drive - SDCZ73-128G-G46
$12.99
SanDisk 32GB Ultra Dual Drive USB Type-C, USB 3.1 Flash Drive - SDDDC2-032G-G46
$10.99
USB Flash Drive Memory Thumb Photo Sticks For iPhone iPad 128/256/512GB 1TB 2TB
$25.33
512GB USB Flash Drive External Storage Memory Stick For iPhone iPad Android
$17.59
New TESLA OEM Model S,3,X,Y USB Flash Drive for Dashcam & Sentry Mode 128GB
$18.99
Sandisk 16GB 32GB 64GB 128GB Cruzer Blade Flash Drive Memory Stick USB Lot Pack
$4.99
Mechanical Style Flash Drive USB 3.0 High Speed 16TB Large Capacity Waterproof
$8.37
Lenovo USB 16TB 3.0 USB Flash Drive Thumb Disk Silver Transfer Metal Memory
$24.99
USB Flash Drive Memory Stick Pendrive Thumb Drive 4GB, 8GB, 32GB, 64GB 128GB LOT
$249.37
Lot USB Flash Drive Memory Stick Pendrive Thumb Drive 2GB,4GB, 8G, 32G, 64G 128G
$414.85