Efivars?

Ask Fedora
1

Hi,
I just saw the thread Root is full, can’t determine why and I started looking at my disks as well. This is what I get:

df -h
Filesystem                 Size  Used Avail Use% Mounted on
/dev/nvme0n1p3              63G   24G   36G  40% /
devtmpfs                   7.4G     0  7.4G   0% /dev
tmpfs                      7.5G   12K  7.5G   1% /dev/shm
efivarfs                   148K  121K   23K  85% /sys/firmware/efi/efivars
tmpfs                      3.0G  2.4M  3.0G   1% /run
tmpfs                      1.0M     0  1.0M   0% /run/credentials/systemd-journald.service
tmpfs                      7.5G   18M  7.4G   1% /tmp
/dev/nvme0n1p2             2.0G  674M  1.2G  37% /boot
/dev/nvme0n1p4             873G  601G  227G  73% /home
/dev/nvme0n1p1             599M   52M  548M   9% /boot/efi
tmpfs                      1.0M     0  1.0M   0% /run/credentials/systemd-resolved.service

When efivars is 85% full, is that something to worry about?

This is the contents of it, is this normal or too much?

sudo ls -l /sys/firmware/efi/efivars/
total 0
-rw-r--r--. 1 root root    12  5 nov 07:58 AcpiGlobalVariable-c020489e-6db2-4ef2-9aa5-ca06fc11d36a
-rw-r--r--. 1 root root    32  5 nov 07:58 ActiveVgaDev-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root    14  5 nov 07:58 AmdAcpiVar-79941ecd-ed36-49d0-8124-e4c31ac75cd4
-rw-r--r--. 1 root root  1284  5 nov 07:58 AMD_PBS_SETUP-a339d746-f678-49b3-9fc7-54ce0f9df226
-rw-r--r--. 1 root root    12  5 nov 07:58 AMD_RAID-fe26a894-d199-47d4-8afa-070e3d54ba86
-rw-r--r--. 1 root root  1729  5 nov 07:58 AmdSetup-3a997502-647a-4c82-998e-52ef9486a247
-rw-r--r--. 1 root root     5  5 nov 07:58 AmdVariableProtection-408f573d-65ee-49ed-8bc5-5a32bbeae745
-rw-r--r--. 1 root root   110  5 nov 07:58 AodCoreInfo-5ed15dc0-edef-4161-9151-6014c4cc630c
-rw-r--r--. 1 root root   110  5 nov 07:58 AodCoreInfoTemp-5ed15dc0-edef-4161-9151-6014c4cc630c
-rw-r--r--. 1 root root   400  5 nov 07:58 AodSetup-5ed15dc0-edef-4161-9151-6014c4cc630c
-rw-r--r--. 1 root root     8  5 nov 07:58 ApSyncFlagNv-ad3f6761-f0a3-46c8-a4cb-19b70ffdb305
-rw-r--r--. 1 root root   122  5 nov 07:58 Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root   118  5 nov 07:58 Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    46  5 nov 07:58 Boot2001-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    44  5 nov 07:58 Boot2002-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    40  5 nov 07:58 Boot2003-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     6  5 nov 07:58 BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    14  5 nov 07:58 BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     5  5 nov 07:58 BuiltAsSecuredCorePC-77fa9abd-0359-4d32-bd60-28f4e78f784b
-rw-r--r--. 1 root root    96  5 nov 07:58 certdb-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root   112  5 nov 07:58 certdbv-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root     5  5 nov 07:58 CheckFirstBoot-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root    53  5 nov 07:58 ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    53  5 nov 07:58 ConInCandidateDev-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root   130  5 nov 07:58 ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    40  5 nov 07:58 ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    40  5 nov 07:58 ConOutCandidateDev-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root    40  5 nov 07:58 ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     5  5 nov 07:58 CurrentPolicy-77fa9abd-0359-4d32-bd60-28f4e78f784b
-rw-r--r--. 1 root root   704  5 nov 07:58 Custom-a04a27f4-df00-4d42-b552-39511302113d
-rw-r--r--. 1 root root    10  5 nov 07:58 CustomPlatformLang-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root     5  5 nov 07:58 CustomSecurity-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root  7021  5 nov 07:58 db-d719b2cb-3d3a-4596-a3bc-dad00e67656f
-rw-r--r--. 1 root root  4026  5 nov 07:58 dbDefault-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root 23120  5 nov 07:58 dbx-d719b2cb-3d3a-4596-a3bc-dad00e67656f
-rw-r--r--. 1 root root  1616  5 nov 07:58 dbxDefault-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     5  5 nov 07:58 DownCoreStatus-29749bad-401b-4f6d-b124-cece8c590c48
-rw-r--r--. 1 root root    40  5 nov 07:58 ErrOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     8  5 nov 07:58 FBSWIF-d743491e-f484-4952-a87d-8d5dd189b70c
-rw-r--r--. 1 root root   410  5 nov 07:58 FeData-1f2d63e1-febd-4dc7-9cc5-ba2b1cef9c5b
-rw-r--r--. 1 root root     5  5 nov 07:58 H2OFormDialogConfig-98ae8272-ce5a-46be-9f5d-d9f9cbbb99f2
-rw-r--r--. 1 root root     7  5 nov 07:58 HybridGraphicsVariable-b2b7c21f-1786-4a64-be69-16cef7647331
-rw-r--r--. 1 root root    12  5 nov 07:58 IhisiParamBuffer-92e59835-5f42-4e0b-9a84-47c7810ea806
-rw-r--r--. 1 root root  1596  5 nov 07:58 IP6_CONFIG_IFR_NVDATA-02eea107-98db-400e-9830-460a1542d799
-rw-r--r--. 1 root root  3070  5 nov 07:58 KEK-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root  1564  5 nov 07:58 KEKDefault-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    12  5 nov 07:58 L05ConfigVar-74d69abb-57c3-4d7f-bfb4-26a2549610f1
-rw-r--r--. 1 root root    11  5 nov 07:58 L05OkrData-9669e125-fedf-43f7-891a-5af85efcdefc
-rw-r--r--. 1 root root     8  5 nov 07:58 Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    17  5 nov 07:58 LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    14  5 nov 07:58 LBLDESP-871455d0-5576-4fb8-9865-af0824463b9e
-rw-r--r--. 1 root root    44  5 nov 07:58 LBLDVC-871455d1-5576-4fb8-9865-af0824463c9f
-rw-r--r--. 1 root root   143  5 nov 07:58 lBoot0000-146b234d-4052-4e07-b326-11220f8e1fe8
-rw-r--r--. 1 root root   139  5 nov 07:58 lBoot0001-146b234d-4052-4e07-b326-11220f8e1fe8
-rw-r--r--. 1 root root    78  5 nov 07:58 LoaderDevicePartUUID-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f
-rw-r--r--. 1 root root    24  5 nov 07:58 LoaderInfo-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f
-rw-------. 1 root root    36  5 nov 07:58 LoaderSystemToken-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f
-rw-r--r--. 1 root root     5  5 nov 07:58 LvarSmiReadyFlag-6acce65d-da35-4b39-b64b-5ed927a7dc7e
-rw-r--r--. 1 root root     5  5 nov 07:58 LVE-5fda220c-9ddc-4588-9da7-34946e00bfad
-rw-r--r--. 1 root root    12  5 nov 07:58 MemCeil.-ad22518b-450a-4857-96c3-d1e22f206129
-rw-r--r--. 1 root root     5  5 nov 07:58 MemoryOverwriteRequestControl-e20939be-32d4-41be-a150-897f85d49829
-rw-r--r--. 1 root root     5  5 nov 07:58 MemoryOverwriteRequestControlLock-bb983ccf-151d-40e1-a07b-4a17be168292
-rw-r--r--. 1 root root    92  5 nov 07:58 MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa
-rw-r--r--. 1 root root  1167  5 nov 07:58 MokListRT-605dab50-e046-4300-abb6-3dd810dd8b23
-rw-r--r--. 1 root root     5  5 nov 07:58 MokListTrustedRT-605dab50-e046-4300-abb6-3dd810dd8b23
-rw-r--r--. 1 root root    80  5 nov 07:58 MokListXRT-605dab50-e046-4300-abb6-3dd810dd8b23
-rw-r--r--. 1 root root     8  5 nov 07:58 MTC-eb704011-1402-11d3-8e77-00a0c969723b
-rw-r--r--. 1 root root     5  5 nov 07:58 NetworkSetup-a04a27f4-df00-4d42-b552-39511302113d
-rw-r--r--. 1 root root    12  5 nov 07:58 OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root     8  5 nov 07:58 PhysicalBootOrder-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root   856  5 nov 07:58 PK-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root   856  5 nov 07:58 PKDefault-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    10  5 nov 07:58 PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    17  5 nov 07:58 PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    20  5 nov 07:58 PlugInVgaHandles-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root     5  5 nov 07:58 RESETHOOK-ecff6205-576b-4416-8e31-163920fdcc69
-rw-r--r--. 1 root root     6  5 nov 07:58 ResourceDistribution-0ce40a5f-153a-4462-a429-4098e0e13cac
-rw-r--r--. 1 root root  2980  5 nov 07:58 ResourceSizeForEachRb-542b8f2f-bd52-4233-8c3d-66530de8a369
-rw-r--r--. 1 root root     5  5 nov 07:58 RestoreFactoryDefault-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root    22  5 nov 07:58 SbatLevelRT-605dab50-e046-4300-abb6-3dd810dd8b23
-rw-r--r--. 1 root root     5  5 nov 07:58 SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    92  5 nov 07:58 SecureBootData-aa1305b9-01f3-4afb-920e-c9b979a852fd
-rw-r--r--. 1 root root     5  5 nov 07:58 SecureBootEnforce-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root    18  5 nov 07:58 SecureFlashInfo-382af2bb-ffff-abcd-aaee-cce099338877
-rw-r--r--. 1 root root     5  5 nov 07:58 SetPcrBanks-8376bdca-5e03-4735-951a-4a74141e5886
-rw-r--r--. 1 root root   704  5 nov 07:58 Setup-a04a27f4-df00-4d42-b552-39511302113d
-rw-r--r--. 1 root root     5  5 nov 07:58 SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    36  5 nov 07:58 SignatureSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    14  5 nov 07:58 Tcg2ConfigInfo-07a66697-d400-4903-b3da-67a61d2b7058
-rw-r--r--. 1 root root    20  5 nov 07:58 Tcg2PhysicalPresence-aeb9c5c1-94f1-4d02-bfd9-4602db2d3c54
-rw-r--r--. 1 root root     8  5 nov 07:58 Tcg2PhysicalPresenceFlags-aeb9c5c1-94f1-4d02-bfd9-4602db2d3c54
-rw-r--r--. 1 root root     6  5 nov 07:58 Timeout-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root    12  5 nov 07:58 TrEEPhysicalPresence-f24643c2-c622-494e-8a0d-4632579c2d5b
-rw-r--r--. 1 root root     5  5 nov 07:58 TrEEPhysicalPresenceFlags-f24643c2-c622-494e-8a0d-4632579c2d5b
-rw-r--r--. 1 root root    21  5 nov 07:58 UIT_DATA-fe47349a-7f0d-4641-822b-34baa28ecdd0
-rw-r--r--. 1 root root    36  5 nov 07:58 UIT_HEADER-fe47349a-7f0d-4641-822b-34baa28ecdd0
-rw-r--r--. 1 root root    36  5 nov 07:58 UnlockIDCopy-eaec226f-c9a3-477a-a826-ddc716cdc0e3
-rw-r--r--. 1 root root   112  5 nov 07:58 UserVgaSelection-59d1c24f-50f1-401a-b101-f33e0daed443
-rw-r--r--. 1 root root     5  5 nov 07:58 VarErrorFlag-04b37fe8-f6ae-480b-bdd5-37d98c5e89aa
-rw-r--r--. 1 root root     5  5 nov 07:58 VendorKeys-8be4df61-93ca-11d2-aa0d-00e098032b8c

I have 148K, while I see on the internet 256 mentioned, and even 2MB as well. I also read when it is full it can give problems.
Do I need to change something, can I even do that, or should I just let it be?

Thanks.

2

I’m at 81% and not worried.

1 Like
3

I wouldn’t bother with virtual file systems. You could use different other commands: lsblk -f, sudo du -hd 1 / 2>/dev/null | sort -rh | tail -n +2 etc.

4

Okay, so no problem at all. Thank you guys.

1 Like
5

the efivars file system is created automatically and basically most users have no control over that. It exists purely in RAM. The content depends upon what efi bits are required to support the hardware on the system.
On my system it is only 39% used on a 128K file system.

1 Like