NFS: mount options

systems 1 Comment »

To optimize NFS throughput and speed the following mount options could help:

rw,noatime,rsize=32768,wsize=32768,soft

dd via ssh

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dd if=/dev/sda2 | buffer -S 2048 | ssh -p 2022 -l user machine.example.com "dd of=/space/upload/image.img"
dd if=/dev/sda2 | gzip - | buffer -S 2048 | ssh -p 2022 -l user machine.example.com "dd of=/space/upload/image.img"

Create large partitions

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# parted /dev/sda
(parted) mklabel gpt
(parted) mkpart primary 0 -1
(parted) print
(parted) quit

# mkfs.ext3 -m 0 /dev/sda1

Grub: Install in chroot

systems No Comments »

121 grub-install –root-directory=/mnt –recheck /dev/sda
122 grub-install –root-directory=/mnt ‘(hd0)’

Linux hardware information

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The tool dmidecode is able to display detailed hardware information including the installed memory per slot.

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