(old)Puppy Linux Discussion Forum

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# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       144G  2.5G  135G   2% /
devtmpfs        1.5G     0  1.5G   0% /dev
shmfs           726M     0  726M   0% /dev/shm
tmpfs           726M  726M     0 100% /tmp

# mount
rootfs on / type rootfs (rw)
/dev/root on / type ext4 (rw,relatime,data=ordered)
devtmpfs on /dev type devtmpfs (rw,relatime,size=1491292k,nr_inodes=219581,mode=755)
none on /proc type proc (rw,relatime)
none on /dev/pts type devpts (rw,relatime,gid=2,mode=620)
none on /sys type sysfs (rw,relatime)
shmfs on /dev/shm type tmpfs (rw,relatime,size=742708k)
tmpfs on /tmp type tmpfs (rw,relatime,size=742708k)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)

# cat /etc/fstab
/dev/sda1     /            ext4     defaults               0 1
none          /proc        proc     defaults               0 0
none          /sys         sysfs    defaults               0 0
none          /dev/pts     devpts   gid=2,mode=620         0 0
/dev/fd0      /mnt/floppy  auto     noauto,rw              0 0

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#Unionfs layers setup by this script...
#unionfs layers:            RW (top)      RO1             RO2              PUPMODE
#full install, flash drive: tmpfs         PDEV1                            3

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mount /tmp -o remount,size=500m

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df-FULL -h
 
Filesystem            Size  Used Avail Use% Mounted on

/dev/shm              500M  325M  176M  65% /tmp
/dev/shm              500M  325M  176M  65% /root


df-FULL -i

Filesystem            Inodes   IUsed   IFree IUse% Mounted on

/dev/shm               40960    7797   33163   20% /tmp
/dev/shm               40960    7797   33163   20% /root

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# cat /proc/swaps
Filename				Type		Size	Used	Priority
/dev/sda5                               partition	3109884	0	-1

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#130630 bring back tmpfs on /tmp for full HD installation.

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##v2.20 some apps need shm (shared memory) (ex: xfdiff)... 100319 do this always...
FREERAM=`free | grep -o 'Mem: .*' | tr -s ' ' | cut -f 4 -d ' '` #w481 110405
QTRFREERAM=`expr $FREERAM \/ 4`
mkdir -p /dev/shm #120503 if kernel mounts a f.s. on /dev, removes my skeleton /dev
mount -t tmpfs -o size=${QTRFREERAM}k shmfs /dev/shm ;STATUS=$((STATUS+$?))

if [ ! -d /initrd ];then
 #130630 restore tmpfs on /tmp...
 #120717 this is not so good on raspi with only 256MB RAM, but saves flash writes and faster...
 mount -t tmpfs -o size=${QTRFREERAM}k tmpfs /tmp ;STATUS=$((STATUS+$?))
 #120716 /sbin/init needs to know ramdisk size, before /sys mounted...
 [ ! -f /var/local/ram_size_bytes ] && [ -e /sys/block/ram0/size ] && cat /sys/block/ram0/size > /var/local/ram_size_bytes
 #120717 log maximal mount counts, potentially rc.shutdown can then not delete /fsckme.flg...
 #dmesg | grep -o 'EXT[2,3,4]-fs.*running e2fsck is recommended' > /tmp/dmesg_e2fsck_warnings1
 dmesg | grep -o 'EXT[2,3,4]-fs.*maximal mount count reached' > /tmp/dmesg_e2fsck_warnings1
 #example lines:
 #EXT3-fs (sda9): warning: mounting fs with errors, running e2fsck is recommended
 #EXT3-fs (sda10): warning: maximal mount count reached, running e2fsck is recommended
fi

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mount -t tmpfs -o size=${QTRFREERAM}k tmpfs /tmp ;STATUS=$((STATUS+$?))