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Groups > linux.debian.kernel > #84220 > unrolled thread
| Started by | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| First post | 2024-10-07 00:50 +0200 |
| Last post | 2024-10-09 03:00 +0200 |
| Articles | 8 — 3 participants |
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Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Vincent Lefevre <vincent@vinc17.net> - 2024-10-07 00:50 +0200
Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Vincent Lefevre <vincent@vinc17.net> - 2024-10-07 01:00 +0200
Processed: Re: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-07 01:00 +0200
Processed: Re: Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-07 21:30 +0200
Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Ben Hutchings <ben@decadent.org.uk> - 2024-10-07 21:30 +0200
Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Vincent Lefevre <vincent@vinc17.net> - 2024-10-08 03:50 +0200
Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Ben Hutchings <ben@decadent.org.uk> - 2024-10-08 20:20 +0200
Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Vincent Lefevre <vincent@vinc17.net> - 2024-10-09 03:00 +0200
| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2024-10-07 00:50 +0200 |
| Subject | Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot |
| Message-ID | <JuIeB-hpHw-1@gated-at.bofh.it> |
Package: initramfs-tools Version: 0.145 Severity: normal When updating an initrd file, update-initramfs keeps 2 temporary copies in /boot, though its space is typically *very* limited (456 MB by default). This means that one can keep a limited number of kernels. With the 456 MB default size and maximum compression (COMPRESS=lzma and COMPRESSLEVEL=9), only 3 kernels are possible. The temporary copies should be stored on the main file system, which is not space limited. -- Package-specific info: -- initramfs sizes -rw-r--r-- 1 root root 90M 2024-10-02 23:28:51 /boot/initrd.img-6.10.11-amd64 -rw-r--r-- 1 root root 90M 2024-10-06 23:43:19 /boot/initrd.img-6.11.0-rc2+ -rw-r--r-- 1 root root 67M 2024-07-19 02:11:58 /boot/initrd.img-6.7.12-amd64 -- /proc/cmdline BOOT_IMAGE=/vmlinuz-6.7.12-amd64 root=/dev/mapper/qaa--vg-root ro quiet -- resume RESUME=/dev/mapper/qaa--vg-swap_1 -- /proc/filesystems fuseblk ext3 ext2 ext4 vfat -- lsmod Module Size Used by tls 151552 0 mptcp_diag 12288 0 xsk_diag 12288 0 tcp_diag 12288 0 udp_diag 12288 0 raw_diag 12288 0 inet_diag 28672 4 tcp_diag,mptcp_diag,raw_diag,udp_diag unix_diag 12288 0 af_packet_diag 12288 0 netlink_diag 12288 0 uinput 20480 1 snd_seq_dummy 12288 0 snd_hrtimer 12288 1 snd_seq 114688 7 snd_seq_dummy snd_seq_device 16384 1 snd_seq ctr 12288 1 ccm 20480 3 nft_reject_inet 12288 1 nf_reject_ipv4 16384 1 nft_reject_inet nf_reject_ipv6 20480 1 nft_reject_inet nft_reject 12288 1 nft_reject_inet rfcomm 102400 6 cmac 12288 3 algif_hash 12288 1 algif_skcipher 12288 1 af_alg 36864 6 algif_hash,algif_skcipher qrtr 57344 4 snd_hda_codec_hdmi 90112 1 bnep 36864 2 binfmt_misc 28672 1 xt_multiport 16384 1 nft_compat 24576 1 nf_tables 372736 3774 nft_compat,nft_reject_inet,nft_reject snd_sof_pci_intel_tgl 12288 0 snd_sof_intel_hda_common 221184 1 snd_sof_pci_intel_tgl libcrc32c 12288 1 nf_tables iwlmvm 602112 0 soundwire_intel 73728 1 snd_sof_intel_hda_common soundwire_generic_allocation 12288 1 soundwire_intel snd_sof_intel_hda_mlink 40960 2 soundwire_intel,snd_sof_intel_hda_common soundwire_cadence 45056 1 soundwire_intel nls_ascii 12288 1 snd_sof_intel_hda 24576 1 snd_sof_intel_hda_common nls_cp437 16384 1 snd_sof_pci 24576 2 snd_sof_intel_hda_common,snd_sof_pci_intel_tgl snd_sof_xtensa_dsp 16384 1 snd_sof_intel_hda_common vfat 20480 1 fat 102400 1 vfat snd_sof 364544 3 snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_hda intel_uncore_frequency 12288 0 intel_uncore_frequency_common 16384 1 intel_uncore_frequency mac80211 1388544 1 iwlmvm x86_pkg_temp_thermal 16384 0 intel_powerclamp 16384 0 snd_sof_utils 16384 1 snd_sof snd_soc_hdac_hda 28672 1 snd_sof_intel_hda_common snd_hda_ext_core 40960 4 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda_mlink,snd_sof_intel_hda snd_soc_acpi_intel_match 98304 2 snd_sof_intel_hda_common,snd_sof_pci_intel_tgl coretemp 16384 0 snd_soc_acpi 16384 2 snd_soc_acpi_intel_match,snd_sof_intel_hda_common snd_soc_core 434176 4 soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda kvm_intel 413696 0 btusb 86016 0 snd_ctl_led 24576 0 btrtl 32768 1 btusb btintel 57344 1 btusb snd_hda_codec_realtek 200704 1 btbcm 24576 1 btusb joydev 24576 0 btmtk 16384 1 btusb snd_hda_codec_generic 114688 1 snd_hda_codec_realtek libarc4 12288 1 mac80211 snd_compress 28672 1 snd_soc_core dell_rbtn 20480 0 kvm 1363968 1 kvm_intel bluetooth 1069056 40 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm snd_pcm_dmaengine 16384 1 snd_soc_core iwlwifi 548864 1 iwlmvm soundwire_bus 114688 3 soundwire_intel,soundwire_generic_allocation,soundwire_cadence snd_hda_intel 61440 1 dell_laptop 32768 0 snd_intel_dspcfg 36864 3 snd_hda_intel,snd_sof,snd_sof_intel_hda_common snd_intel_sdw_acpi 16384 2 snd_sof_intel_hda_common,snd_intel_dspcfg ledtrig_audio 12288 3 snd_ctl_led,snd_hda_codec_generic,dell_laptop irqbypass 12288 1 kvm mei_hdcp 28672 0 mei_pxp 16384 0 mei_wdt 12288 0 snd_hda_codec 225280 6 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda,snd_sof_intel_hda uvcvideo 147456 0 cfg80211 1339392 3 iwlmvm,iwlwifi,mac80211 intel_rapl_msr 20480 0 rapl 20480 0 sha3_generic 16384 1 videobuf2_vmalloc 20480 1 uvcvideo intel_cstate 20480 0 uvc 12288 1 uvcvideo jitterentropy_rng 20480 1 snd_hda_core 147456 9 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda videobuf2_memops 16384 1 videobuf2_vmalloc videobuf2_v4l2 36864 1 uvcvideo snd_hwdep 20480 1 snd_hda_codec dell_wmi 16384 0 hid_sensor_als 16384 1 videodev 372736 2 videobuf2_v4l2,uvcvideo drbg 49152 1 hid_sensor_trigger 20480 2 hid_sensor_als dell_smbios 32768 2 dell_wmi,dell_laptop snd_pcm 192512 11 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_compress,snd_soc_core,snd_sof_utils,snd_hda_core,snd_pcm_dmaengine intel_uncore 258048 0 ansi_cprng 12288 0 iTCO_wdt 12288 0 intel_pmc_bxt 16384 1 iTCO_wdt hid_sensor_iio_common 20480 2 hid_sensor_trigger,hid_sensor_als dcdbas 20480 1 dell_smbios ecdh_generic 16384 2 bluetooth pcspkr 12288 0 dell_wmi_ddv 24576 0 dell_wmi_sysman 57344 0 industrialio_triggered_buffer 12288 1 hid_sensor_trigger firmware_attributes_class 12288 1 dell_wmi_sysman dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios wmi_bmof 12288 0 snd_timer 53248 3 snd_seq,snd_hrtimer,snd_pcm videobuf2_common 77824 4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops iTCO_vendor_support 12288 1 iTCO_wdt mei_me 57344 3 kfifo_buf 12288 1 industrialio_triggered_buffer snd 155648 18 snd_ctl_led,snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_sof,snd_timer,snd_compress,snd_soc_core,snd_pcm processor_thermal_device_pci 12288 0 watchdog 49152 2 iTCO_wdt,mei_wdt mc 98304 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common mei 188416 7 mei_wdt,mei_hdcp,mei_pxp,mei_me processor_thermal_device 20480 1 processor_thermal_device_pci industrialio 135168 5 industrialio_triggered_buffer,hid_sensor_trigger,kfifo_buf,hid_sensor_als ecc 45056 1 ecdh_generic soundcore 16384 2 snd_ctl_led,snd processor_thermal_wt_hint 16384 2 processor_thermal_device_pci,processor_thermal_device processor_thermal_rfim 28672 1 processor_thermal_device rfkill 40960 9 iwlmvm,bluetooth,dell_laptop,dell_rbtn,cfg80211 processor_thermal_rapl 16384 1 processor_thermal_device ucsi_acpi 12288 0 intel_rapl_common 36864 2 intel_rapl_msr,processor_thermal_rapl typec_ucsi 61440 1 ucsi_acpi processor_thermal_wt_req 12288 1 processor_thermal_device processor_thermal_power_floor 16384 2 processor_thermal_device_pci,processor_thermal_device typec 114688 1 typec_ucsi processor_thermal_mbox 12288 4 processor_thermal_power_floor,processor_thermal_wt_req,processor_thermal_rfim,processor_thermal_wt_hint igen6_edac 24576 0 roles 16384 1 typec_ucsi apple_mfi_fastcharge 16384 0 int3403_thermal 16384 0 int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device int3400_thermal 20480 0 intel_hid 28672 0 acpi_thermal_rel 20480 1 int3400_thermal acpi_pad 184320 0 intel_pmc_core 81920 0 acpi_tad 20480 0 sparse_keymap 12288 2 intel_hid,dell_wmi ac 16384 0 hid_multitouch 32768 0 evdev 28672 23 serio_raw 16384 0 msr 12288 0 parport_pc 40960 0 ppdev 24576 0 lp 20480 0 parport 81920 3 parport_pc,lp,ppdev efi_pstore 12288 0 configfs 69632 1 nfnetlink 20480 3 nft_compat,nf_tables efivarfs 24576 1 ip_tables 28672 0 x_tables 57344 3 nft_compat,xt_multiport,ip_tables autofs4 57344 2 ext4 1130496 2 crc16 12288 2 bluetooth,ext4 mbcache 16384 1 ext4 jbd2 196608 1 ext4 crc32c_generic 12288 0 dm_crypt 61440 1 dm_mod 221184 11 dm_crypt r8153_ecm 12288 0 cdc_ether 24576 1 r8153_ecm usbnet 65536 2 r8153_ecm,cdc_ether r8152 151552 1 r8153_ecm mii 16384 2 usbnet,r8152 hid_apple 24576 0 usbhid 73728 0 hid_sensor_custom 28672 0 hid_sensor_hub 28672 4 hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_als,hid_sensor_custom intel_ishtp_hid 28672 0 nvme 57344 3 nvme_core 196608 4 nvme t10_pi 20480 1 nvme_core crc64_rocksoft_generic 12288 1 crc64_rocksoft 16384 1 t10_pi crc_t10dif 16384 1 t10_pi crct10dif_generic 12288 0 crc64 16384 2 crc64_rocksoft,crc64_rocksoft_generic ahci 49152 0 libahci 61440 1 ahci libata 471040 2 libahci,ahci scsi_mod 331776 1 libata scsi_common 16384 2 scsi_mod,libata nouveau 3088384 2 i915 3989504 51 drm_gpuvm 28672 1 nouveau mxm_wmi 12288 1 nouveau drm_exec 16384 1 nouveau gpu_sched 65536 1 nouveau drm_buddy 20480 1 i915 crct10dif_pclmul 12288 1 i2c_algo_bit 12288 2 i915,nouveau crct10dif_common 12288 3 crct10dif_generic,crc_t10dif,crct10dif_pclmul hid_generic 12288 0 crc32_pclmul 12288 0 drm_display_helper 233472 2 i915,nouveau crc32c_intel 16384 4 xhci_pci 24576 0 ghash_clmulni_intel 16384 0 cec 69632 2 drm_display_helper,i915 rc_core 73728 1 cec drm_ttm_helper 12288 1 nouveau xhci_hcd 356352 1 xhci_pci i2c_hid_acpi 12288 0 sha512_ssse3 53248 1 ttm 110592 3 drm_ttm_helper,i915,nouveau i2c_hid 40960 1 i2c_hid_acpi rtsx_pci_sdmmc 32768 0 sha512_generic 16384 1 sha512_ssse3 usbcore 409600 10 xhci_hcd,usbnet,usbhid,r8153_ecm,apple_mfi_fastcharge,uvcvideo,btusb,xhci_pci,cdc_ether,r8152 mmc_core 253952 1 rtsx_pci_sdmmc drm_kms_helper 270336 4 drm_display_helper,i915,nouveau hid 176128 7 i2c_hid,usbhid,hid_apple,hid_multitouch,hid_sensor_hub,intel_ishtp_hid,hid_generic intel_lpss_pci 24576 0 i2c_i801 36864 0 intel_ish_ipc 32768 0 video 77824 4 dell_wmi,dell_laptop,i915,nouveau intel_lpss 16384 1 intel_lpss_pci sha256_ssse3 32768 0 drm 778240 18 gpu_sched,i2c_hid,drm_kms_helper,drm_exec,drm_display_helper,drm_buddy,drm_ttm_helper,i915,ttm,nouveau thunderbolt 503808 0 psmouse 208896 0 rtsx_pci 131072 1 rtsx_pci_sdmmc sha1_ssse3 32768 0 intel_ishtp 77824 2 intel_ishtp_hid,intel_ish_ipc i2c_smbus 16384 1 i2c_i801 idma64 20480 0 usb_common 20480 4 xhci_hcd,usbcore,uvcvideo,typec_ucsi vmd 24576 0 battery 28672 1 dell_wmi_ddv button 24576 1 nouveau wmi 40960 9 dell_wmi_sysman,video,dell_wmi_ddv,dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor,mxm_wmi,nouveau aesni_intel 360448 8 crypto_simd 16384 1 aesni_intel cryptd 28672 4 crypto_simd,ghash_clmulni_intel -- /etc/initramfs-tools/modules -- /etc/kernel-img.conf # Kernel image management overrides # See kernel-img.conf(5) for details do_symlinks = yes do_bootloader = no do_initrd = yes link_in_boot = no -- /etc/initramfs-tools/initramfs.conf MODULES=most BUSYBOX=auto KEYMAP=n COMPRESS=lzma COMPRESSLEVEL=9 DEVICE= NFSROOT=auto RUNSIZE=10% FSTYPE=auto -- /etc/initramfs-tools/update-initramfs.conf update_initramfs=yes backup_initramfs=no -- /etc/crypttab nvme0n1p3_crypt UUID=3e44a71f-0640-43d6-9a0c-08f3508572cd none luks,discard -- mkinitramfs hooks /etc/initramfs-tools/hooks/: /usr/share/initramfs-tools/hooks: cryptgnupg cryptgnupg-sc cryptkeyctl cryptopensc cryptpassdev cryptroot cryptroot-unlock dmsetup fsck fuse intel_microcode keymap klibc-utils kmod lvm2 ntfs_3g plymouth resume thermal udev zz-busybox -- System Information: Debian Release: trixie/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 6.7.12-amd64 (SMP w/16 CPU threads; PREEMPT) Kernel taint flags: TAINT_WARN Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages initramfs-tools depends on: ii initramfs-tools-core 0.145 ii linux-base 4.10.1 initramfs-tools recommends no packages. Versions of packages initramfs-tools suggests: ii bash-completion 1:2.14.0-1 -- no debconf information -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2024-10-07 01:00 +0200 |
| Message-ID | <JuIoh-hpKN-1@gated-at.bofh.it> |
| In reply to | #84220 |
Control: retitle -1 initramfs-tools: update-initramfs fails with "No space left on device" due to 2 temporary initrd copies in /boot On 2024-10-07 00:39:23 +0200, Vincent Lefevre wrote: > When updating an initrd file, update-initramfs keeps 2 temporary > copies in /boot, though its space is typically *very* limited > (456 MB by default). This means that one can keep a limited number > of kernels. With the 456 MB default size and maximum compression > (COMPRESS=lzma and COMPRESSLEVEL=9), only 3 kernels are possible. The error: [...] Processing triggers for initramfs-tools (0.145) ... update-initramfs: Generating /boot/initrd.img-6.11.0-rc2+ lzma: (stdout): Write error: No space left on device E: mkinitramfs failure cpio 141 E: mkinitramfs failure lzma -9 1 update-initramfs: failed for /boot/initrd.img-6.11.0-rc2+ with 1. dpkg: error processing package initramfs-tools (--configure): installed initramfs-tools package post-installation script subprocess returned error exit status 1 -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2024-10-07 01:00 +0200 |
| Subject | Processed: Re: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot |
| Message-ID | <JuIoh-hpKN-3@gated-at.bofh.it> |
| In reply to | #84220 |
Processing control commands: > retitle -1 initramfs-tools: update-initramfs fails with "No space left on device" due to 2 temporary initrd copies in /boot Bug #1084232 [initramfs-tools] initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot Changed Bug title to 'initramfs-tools: update-initramfs fails with "No space left on device" due to 2 temporary initrd copies in /boot' from 'initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot'. -- 1084232: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1084232 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2024-10-07 21:30 +0200 |
| Subject | Processed: Re: Bug#1084232: initramfs-tools: fails with "No space left on device" due to 2 temporary initrd copies in /boot |
| Message-ID | <Jv1AB-JG-7@gated-at.bofh.it> |
| In reply to | #84220 |
Processing control commands: > tag -1 moreinfo Bug #1084232 [initramfs-tools] initramfs-tools: update-initramfs fails with "No space left on device" due to 2 temporary initrd copies in /boot Added tag(s) moreinfo. -- 1084232: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1084232 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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| From | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| Date | 2024-10-07 21:30 +0200 |
| Message-ID | <Jv1AB-JG-5@gated-at.bofh.it> |
| In reply to | #84220 |
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Control: tag -1 moreinfo On Mon, 2024-10-07 at 00:39 +0200, Vincent Lefevre wrote: > Package: initramfs-tools > Version: 0.145 > Severity: normal > > When updating an initrd file, update-initramfs keeps 2 temporary > copies in /boot, I don't believe this is the case. A successful run of "update-initramfs -u" will do: 1. Hard-link initrd.img-<version> to initrd.img-<version>.dpkg-bak 2. Create new initramfs as initrd.img-<version>.new 3. Move initrd.img-<version>.new to initrd.img-<version> 4. Remove initrd.img-<version>.dpkg-bak (unless backup_initramfs is enabled) There is 1 temporary copy created in step 2, and after step 4 there are 0 temporary copies. Step 1 does have a fallback to copying if hard-linking fails. That could happen if your /boot uses VFAT or some other un-Unix-like filesystem, but that's not supported by Debian. But maybe there's some other reason it can fail? > though its space is typically *very* limited > (456 MB by default). This means that one can keep a limited number > of kernels. With the 456 MB default size and maximum compression > (COMPRESS=lzma and COMPRESSLEVEL=9), only 3 kernels are possible. > > The temporary copies should be stored on the main file system, > which is not space limited. [...] The initramfs must be replaced atomically, otherwise we can end up with a previously working image being deleted or replaced with a truncated image. So there has to be 1 temporary copy. Ben. -- Ben Hutchings I'm not a reverse psychological virus. Please don't copy me into your signature.
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| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2024-10-08 03:50 +0200 |
| Message-ID | <Jv7wl-4DO-1@gated-at.bofh.it> |
| In reply to | #84236 |
On 2024-10-07 21:23:40 +0200, Ben Hutchings wrote: > Control: tag -1 moreinfo > > On Mon, 2024-10-07 at 00:39 +0200, Vincent Lefevre wrote: > > Package: initramfs-tools > > Version: 0.145 > > Severity: normal > > > > When updating an initrd file, update-initramfs keeps 2 temporary > > copies in /boot, > > I don't believe this is the case. A successful run of > "update-initramfs -u" will do: > > 1. Hard-link initrd.img-<version> to initrd.img-<version>.dpkg-bak > 2. Create new initramfs as initrd.img-<version>.new > 3. Move initrd.img-<version>.new to initrd.img-<version> > 4. Remove initrd.img-<version>.dpkg-bak (unless backup_initramfs is > enabled) > > There is 1 temporary copy created in step 2, and after step 4 there are > 0 temporary copies. > > Step 1 does have a fallback to copying if hard-linking fails. That > could happen if your /boot uses VFAT or some other un-Unix-like > filesystem, but that's not supported by Debian. But maybe there's some > other reason it can fail? Indeed, with 3 installed kernels: Filesystem Size Used Avail Use% Mounted on /dev/nvme0n1p2 456M 295M 137M 69% /boot So there isn't enough space for a 4th kernel + a temporary copy (90 MB each at maximum compression + 9 MB for the vmlinuz file). > > though its space is typically *very* limited > > (456 MB by default). This means that one can keep a limited number > > of kernels. With the 456 MB default size and maximum compression > > (COMPRESS=lzma and COMPRESSLEVEL=9), only 3 kernels are possible. > > > > The temporary copies should be stored on the main file system, > > which is not space limited. > [...] > > The initramfs must be replaced atomically, otherwise we can end up with > a previously working image being deleted or replaced with a truncated > image. So there has to be 1 temporary copy. The temporary copy could be on the main file system. The goal is anyway to keep *at least* an additional working kernel in /boot in case the rebuild of the kernel gets broken (which cannot be detected until booting on this kernel). So, if anything goes wrong (either at install time or when booting on the rebuilt kernel), it is possible to boot on the working kernel to fix things. -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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| From | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| Date | 2024-10-08 20:20 +0200 |
| Message-ID | <JvmYp-eR2-1@gated-at.bofh.it> |
| In reply to | #84240 |
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On Tue, 2024-10-08 at 03:41 +0200, Vincent Lefevre wrote: > On 2024-10-07 21:23:40 +0200, Ben Hutchings wrote: > > Control: tag -1 moreinfo > > > > On Mon, 2024-10-07 at 00:39 +0200, Vincent Lefevre wrote: > > > Package: initramfs-tools > > > Version: 0.145 > > > Severity: normal > > > > > > When updating an initrd file, update-initramfs keeps 2 temporary > > > copies in /boot, > > > > I don't believe this is the case. A successful run of > > "update-initramfs -u" will do: > > > > 1. Hard-link initrd.img-<version> to initrd.img-<version>.dpkg-bak > > 2. Create new initramfs as initrd.img-<version>.new > > 3. Move initrd.img-<version>.new to initrd.img-<version> > > 4. Remove initrd.img-<version>.dpkg-bak (unless backup_initramfs is > > enabled) > > > > There is 1 temporary copy created in step 2, and after step 4 there are > > 0 temporary copies. > > > > Step 1 does have a fallback to copying if hard-linking fails. That > > could happen if your /boot uses VFAT or some other un-Unix-like > > filesystem, but that's not supported by Debian. But maybe there's some > > other reason it can fail? > > Indeed, with 3 installed kernels: > > Filesystem Size Used Avail Use% Mounted on > /dev/nvme0n1p2 456M 295M 137M 69% /boot > > So there isn't enough space for a 4th kernel + a temporary copy > (90 MB each at maximum compression + 9 MB for the vmlinuz file). OK. But 'apt autoremove' should normally remove one of the old kernels. And I don't see how this answers my question about the claim of 2 temporary copies. > > > > though its space is typically *very* limited > > > (456 MB by default). This means that one can keep a limited number > > > of kernels. With the 456 MB default size and maximum compression > > > (COMPRESS=lzma and COMPRESSLEVEL=9), only 3 kernels are possible. > > > > > > The temporary copies should be stored on the main file system, > > > which is not space limited. > > [...] > > > > The initramfs must be replaced atomically, otherwise we can end up with > > a previously working image being deleted or replaced with a truncated > > image. So there has to be 1 temporary copy. > > The temporary copy could be on the main file system. The goal is > anyway to keep *at least* an additional working kernel in /boot > in case the rebuild of the kernel gets broken (which cannot be > detected until booting on this kernel). So, if anything goes wrong > (either at install time or when booting on the rebuilt kernel), it > is possible to boot on the working kernel to fix things. Unfortunately there is currently nothing with that global view of which kernel and initramfs images are known good. Also, if we delete an initramfs before rebuilding it, we should remove that kernel/initramfs from the boot menu until it's been rebuilt, but there's currently no mechanism to do that. I do see a need here for a proper re-think of the way we manage kernel and initramfs images in /boot, but this is not something that can be done through a quick fix in initramfs-tools. Ben. -- Ben Hutchings It is easier to write an incorrect program than to understand a correct one.
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| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2024-10-09 03:00 +0200 |
| Message-ID | <Jvtdv-iyy-5@gated-at.bofh.it> |
| In reply to | #84247 |
On 2024-10-08 20:12:11 +0200, Ben Hutchings wrote: > On Tue, 2024-10-08 at 03:41 +0200, Vincent Lefevre wrote: > > Indeed, with 3 installed kernels: > > > > Filesystem Size Used Avail Use% Mounted on > > /dev/nvme0n1p2 456M 295M 137M 69% /boot > > > > So there isn't enough space for a 4th kernel + a temporary copy > > (90 MB each at maximum compression + 9 MB for the vmlinuz file). > > OK. But 'apt autoremove' should normally remove one of the old > kernels. Only if the user reboots *immediately* to switch to the new kernel. This may be unwanted if there is onging work. > And I don't see how this answers my question about the claim of 2 > temporary copies. I've said that there was actually only one temporary copy. Still, this gives a limitation of 3 permanent kernels (with a 4th slot temporarily for an upgrade). Given that there are more bugs related to new kernels (screen blanking issues, broken bluetooth), this makes things difficult. -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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