Ensure Sufficient Disk Space for Upgrades
SUMMARY The amount of free disk space necessary to upgrade a device with a new version of Junos OS Evolved can vary from one release to another. Check the software version you are installing to determine the free disk space requirements, and then clear enough disk space for the upgrade.
If the /soft, /var, or /data directories are at 90% capacity or more, the device does not have enough storage space to install a software package. If the amount of storage space on a device is insufficient for installing Junos OS Evolved, you might receive a warning similar to the following messages, that a file system is low on free disk space:
WARNING: The /soft filesystem is low on free disk space.
WARNING: This package requires 1075136k free, but there is only 666502k
available.
When the system file storage space on the device is full, rebooting the device does not
solve the problem. The following error message displays during a typical operation on the
device after the file storage space is full: user@host> configure /soft: write
failed, filesystem is full
- To determine the amount of free disk space on the device, issue the
show system storagecommand. The command output displays statistics about the amount of free disk space in the device's file system.For example:
user@host> show system storage fpc0: -------------------------------------------------------------------------- Filesystem Size Used Avail Capacity Mounted on /dev/root 30M 30M 0 100% /run/initramfs /dev/ram1p2 4.9G 586M 4.0G 13% /soft /dev/ram1p5 93M 19M 68M 22% /data /dev/ram1p7 2.7G 66M 2.4G 3% /var /dev/loop0 379M 2.3M 353M 1% /data/var/external devtmpfs 16G 0 16G 0% /dev [...output truncated...] fpc1: -------------------------------------------------------------------------- Filesystem Size Used Avail Capacity Mounted on /dev/root 30M 30M 0 100% /run/initramfs /dev/ram1p2 4.9G 586M 4.0G 13% /soft /dev/ram1p5 93M 19M 68M 22% /data /dev/ram1p7 2.7G 42M 2.5G 2% /var /dev/loop0 379M 2.3M 353M 1% /data/var/external devtmpfs 16G 0 16G 0% /dev [...output truncated...] re0: -------------------------------------------------------------------------- Filesystem Size Used Avail Capacity Mounted on /dev/root 34M 34M 0 100% /run/initramfs /dev/sda2 32G 10G 21G 34% /soft /dev/sda5 3.0G 179M 2.6G 7% /data /dev/sda7 145G 4.5G 134G 4% /var /dev/loop0 15G 38M 14G 1% /data/var/external devtmpfs 32G 0 32G 0% /dev /tmp 32G 0 32G 0% /run/initramfs/uswitch/tmp /dev/loop1 517M 517M 0 100% /run/initramfs/uswitch/data/hashes/8e6065a478c593473cd390245274128f1a5885e8 /dev/loop2 29M 29M 0 100% /run/initramfs/uswitch/data/hashes/244e2161887b001792709ec078f864c966baca88 /dev/loop3 36M 36M 0 100% /run/initramfs/uswitch/data/hashes/4cad203feb9c1bd4a903f03503a6777509e4031d /dev/loop4 10M 10M 0 100% /run/initramfs/uswitch/data/hashes/5f9454b8d26e33715373f621d16c9c752e3ff57b /dev/loop5 46M 46M 0 100% /run/initramfs/uswitch/data/hashes/182901abd18cefe6f63397bcbb6f2a8238d38a9b /dev/loop6 9.8M 9.8M 0 100% /run/initramfs/uswitch/data/hashes/c08bb2c69ae7ff2446bdcb32011a03a4a53c5585 /dev/loop7 58M 58M 0 100% /run/initramfs/uswitch/data/hashes/c92e70dc394c01bf5a2a9d06ffcc25ba673286d1 /dev/loop8 34M 34M 0 100% /run/initramfs/uswitch/data/hashes/90fdfeec1bab47c19641d636598a4205bbb7949d /dev/loop9 8.2M 8.2M 0 100% /run/initramfs/uswitch/data/hashes/3874cf9fea904b2d5d3f6920671864bdc05130a2 /dev/loop10 34M 34M 0 100% /run/initramfs/uswitch/data/hashes/35afa8ff63aded42bd23444b672dcd33b922898c /dev/loop11 7.0M 7.0M 0 100% /run/initramfs/uswitch/data/hashes/15684de48b2a621a98afaf9619026dd81cdf74bd /dev/loop12 4.5M 4.5M 0 100% /run/initramfs/uswitch/data/hashes/2d75968c5d882c86b38015fc93fe9e148e226407 /dev/loop13 148M 148M 0 100% /run/initramfs/uswitch/data/hashes/ccb0c8af3d4b26bddf9ccc047aa7e76d34e31387 uswitchd 7.0M 7.0M 0 100% /run/initramfs/uswitch/data/junos-evo-install-ptx-x86-64-21.2I20210315015050-EVO__cd-builder/uswitch unionfs 3.0G 186M 2.6G 7% / /dev/sda1 196M 19M 178M 10% /boot /dev/sda6 984M 1.5M 916M 1% /data/config /tmp 32G 68K 32G 1% /tmp tmpfs 32G 28M 32G 1% /run tmpfs 32G 123M 32G 1% /dev/shm tmpfs 32G 0 32G 0% /sys/fs/cgroup tmpfs 6.3G 0 6.3G 0% /run/user/0 re1: -------------------------------------------------------------------------- Filesystem Size Used Avail Capacity Mounted on /dev/root 34M 34M 0 100% /run/initramfs /dev/sda2 32G 10G 21G 34% /soft /dev/sda5 3.0G 321M 2.5G 12% /data /dev/sda7 145G 3.0G 135G 3% /var /dev/loop0 15G 38M 14G 1% /data/var/external devtmpfs 32G 0 32G 0% /dev [...output truncated...]
- If the amount of free disk space on a device is insufficient for installing Junos OS
Evolved, you can clean up the file storage on the device by deleting the system files or
unnecessary software images. You can use either the
request system storage cleanupor therequest system software deleteoperational mode command, or both, depending on where you need to clear space.- Issue the
request system storage cleanupoperational mode command on the primary Routing Engine to delete system files in the /var directory for all Routing Engines in a system, usually system-log and trace files.The list of files to be deleted displays:
user@host> request system storage cleanup List of files to delete: Size Date Name 11B Oct 28 23:40 /var/jail/tmp/alarmd.ts 92.4K Jan 11 17:12 /var/log/chassisd.0.gz 92.4K Jan 11 06:06 /var/log/chassisd.1.gz 92.5K Jan 10 19:00 /var/log/chassisd.2.gz 92.5K Jan 10 07:53 /var/log/chassisd.3.gz 92.2K Jan 10 15:00 /var/log/hostlogs/auth.log.1.gz 92.2K Jan 1 18:45 /var/log/hostlogs/auth.log.2.gz 92.1K Jan 4 17:30 /var/log/hostlogs/auth.log.3.gz 92.2K Jan 1 18:45 /var/log/hostlogs/auth.log.4.gz 79.0K Jan 12 01:59 /var/log/hostlogs/daemon.log.1.gz 78.8K Jan 11 23:15 /var/log/hostlogs/daemon.log.2.gz 78.7K Jan 11 20:30 /var/log/hostlogs/daemon.log.3.gz 79.1K Jan 11 17:44 /var/log/hostlogs/daemon.log.4.gz 59.1K Jan 11 21:59 /var/log/hostlogs/debug.1.gz 59.2K Jan 11 17:44 /var/log/hostlogs/debug.2.gz 59.2K Jan 11 13:29 /var/log/hostlogs/debug.3.gz 59.3K Jan 11 09:14 /var/log/hostlogs/debug.4.gz 186.6K Oct 20 16:31 /var/log/hostlogs/kern.log.1.gz 238.3K Jan 11 23:15 /var/log/hostlogs/lcmd.log.1.gz 238.4K Jan 11 17:30 /var/log/hostlogs/lcmd.log.2.gz 238.6K Jan 11 11:45 /var/log/hostlogs/lcmd.log.3.gz 238.5K Jan 11 06:00 /var/log/hostlogs/lcmd.log.4.gz 372.5K Jan 11 17:00 /var/log/hostlogs/syslog.1.gz 372.5K Jan 11 04:45 /var/log/hostlogs/syslog.2.gz 371.9K Jan 10 16:30 /var/log/hostlogs/syslog.3.gz 372.7K Jan 10 04:15 /var/log/hostlogs/syslog.4.gz 10.1K Jan 12 02:03 /var/log/messages.0.gz 55.1K Jan 6 21:25 /var/log/messages.1.gz 81.5K Dec 1 21:30 /var/log/messages.2.gz Delete these files ? [yes,no] (no)Enter the option yes to delete the files.
- Before you can clean up unnecessary software images in the
/soft and /data directories for all
Routing Engines in a system, you must first find out what images exist on the device,
using the
show system software listoperational mode command.------------------------------- node: fpc0 ------------------------------- Active boot device is primary: /dev/ram1 List of installed version(s) : '-' running version '>' next boot version after upgrade/downgrade '<' rollback boot version - junos-evo-install-ptx-x86-64-20.4-202103151929.0-EVO - [2021-03-17 12:18:07] ------------------------------- node: re0 ------------------------------- Active boot device is primary: /dev/sda List of installed version(s) : '-' running version '>' next boot version after upgrade/downgrade '<' rollback boot version < junos-evo-install-ptx-x86-64-20.4-202103121629.0-EVO - [2021-03-17 11:22:40] - junos-evo-install-ptx-x86-64-20.4-202103151929.0-EVO - [2021-03-17 10:50:39] junos-evo-install-ptx-x86-64-20.4-202103131143.0-EVO - [2021-03-16 16:12:38] junos-evo-install-ptx-x86-64-20.4-202103141559.0-EVO - [2021-03-15 17:26:42] ------------------------------- node: re1 ------------------------------- Active boot device is primary: /dev/sda List of installed version(s) : '-' running version '>' next boot version after upgrade/downgrade '<' rollback boot version < junos-evo-install-ptx-x86-64-20.4-202103121629.0-EVO - [2021-03-17 11:25:03] - junos-evo-install-ptx-x86-64-20.4-202103151929.0-EVO - [2021-03-17 10:50:39] junos-evo-install-ptx-x86-64-20.4-202103131143.0-EVO - [2021-03-16 16:14:55] junos-evo-install-ptx-x86-64-20.4-202103141559.0-EVO - [2021-03-15 17:57:05]You can delete software images one at a time or you can delete all software images except for the current and rollback images. These commands delete the images on all Routing Engines in the system.
- To delete the software images one at a time, issue the
request system software delete image-nameoperational mode command for each image you need to delete. If you delete this image, you cannot downgrade to this particular version of the software. You cannot delete the currently running software version. Use theforceoption to delete the rollback software image. - Starting in Junos OS Evolved Release 20.4R2, to delete all software images
except for the current and rollback images, issue the
request system software delete archivedoperational mode command. This command fails when a next-boot software image is on the Routing Engine; a new software image was installed, but the device has not yet been rebooted to finish the installation process.user@host-re0> request system software delete archived ALERT: This command will delete all archived SW versions except current and rollback. Do you want to proceed? [yes,no] (no) yes Software delete in progress... re0: Executing Software delete... re0: Cannot delete junos-evo-install-ptx-x86-64-20.4-202103141559.0-EVO - It is the current version re0: Rollback or scratch install re0: Removing version junos-evo-install-ptx-x86-64-20.4-202103150459.0-EVO... re0: Removing version junos-evo-install-ptx-x86-64-20.4-202103111254.0-EVO... re1: Removing version junos-evo-install-ptx-x86-64-20.4-202103150459.0-EVO... re1: Removing version junos-evo-install-ptx-x86-64-20.4-202103111254.0-EVO... Image deletion succeeded.
- To delete the software images one at a time, issue the
- Issue the