Linux From Scratch (LFS) --- Step by Step with VirtualBox

(REV056b--27-Oct-2022)
Linux From Scratch (LFS) --- Step by Step with VirtualBox. This site is managed by VauLSMorg (vlsm.org) since 2020.
May the fork() be with you!

View on GitHub

HOME ABOUT WEB GITHUB TOP BOTTOM PREV NEXT


LFS: If more SWAP space is needed


Eg. Add 1 GB swap file (1MiB x 1024)

INPUT-01

dd        if=/dev/zero of=/var/tmp/.swapfile.bin bs=1MiB count=1024
chmod 600 /var/tmp/.swapfile.bin
mkswap    /var/tmp/.swapfile.bin
parted    -l
swapon    --show
swapon    /var/tmp/.swapfile.bin
swapon    --show
top -b -n 1 | grep Swap:

OUTPUT-01

root:~# dd        if=/dev/zero of=/var/tmp/.swapfile.bin bs=1MiB count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 0.907157 s, 1.2 GB/s

root:~# chmod 600 /var/tmp/.swapfile.bin

root:~# mkswap    /var/tmp/.swapfile.bin
Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes)
no label, UUID=29597c83-46a7-4454-a57d-0da84850a8b3

root:~# parted    -l
Model: ATA VBOX HARDDISK (scsi)
Disk /dev/sda: 68.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system     Flags
 1      1049kB  257MB   256MB   primary  linux-swap(v1)
 2      257MB   68.7GB  68.5GB  primary  ext4            boot

Model: ATA VBOX HARDDISK (scsi)
Disk /dev/sdb: 68.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system     Flags
 1      1049kB  257MB   256MB   primary  linux-swap(v1)
 2      257MB   68.7GB  68.5GB  primary  ext4

root:~# swapon    --show
NAME      TYPE      SIZE USED PRIO
/dev/sdb1 partition 244M   0B   -3
/dev/sda1 partition 244M   0B   -2

root:~# swapon    /var/tmp/.swapfile.bin

root:~# swapon    --show
NAME                   TYPE       SIZE USED PRIO
/dev/sdb1              partition  244M   0B   -3
/dev/sda1              partition  244M   0B   -2
/var/tmp/.swapfile.bin file      1024M   0B   -4

root:~# top -b -n 1 | grep Swap:
MiB Swap:   1512.0 total,   1512.0 free,      0.0 used.   7560.1 avail Mem 

root:~# 


ENDOFPAGE

HOME ABOUT WEB GITHUB TOP BOTTOM PREV NEXT