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porphyry5

Member

Registered: 2014-06-04

Posts: 88

Interpreting output of df [SOLVED]

I ran df -h and received this output

Filesystem      Size  Used Avail Use% Mounted on
dev             975M     0  975M   0% /dev
run             977M  668K  977M   1% /run
/dev/sda1        15G   11G  3.4G  76% /
tmpfs           977M     0  977M   0% /dev/shm
tmpfs           977M     0  977M   0% /sys/fs/cgroup
tmpfs           977M  8.0K  977M   1% /tmp
tmpfs           196M  4.0K  196M   1% /run/user/1000
/dev/sdb1       459G  113G  323G  26% /mnt/1
/dev/sdc1       459G   56G  380G  13% /mnt/9

Could someone tell me why Size of sda1, sdb1 and sdc1 is not equal to Used + Avail in each case.  Does this mean the missing space is unusable, as in bad sectors?

Last edited by porphyry5 (2016-04-22 19:06:38)

WorMzy

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From: Scotland

Registered: 2010-06-16

Posts: 11,858

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Re: Interpreting output of df [SOLVED]

What filesystems do they use? If ext#, research reserved blocks.

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porphyry5

Member

Registered: 2014-06-04

Posts: 88

Re: Interpreting output of df [SOLVED]

What filesystems do they use? If ext#, research reserved blocks.

Thank you.